Home

Dyno DataMite Analyzer V3.7 for Windows User`s Manual

1. If you ve requested Preferences it in Preferences a Performance Operation Printing Estimate is given here An estimate Performance Emailing Graphing and amount of Estimate settings Calculations cont improvement is also are contained Filing System f given if you are also under the requesting to Performance Est Main Screen Graph Lines Thick v include a tab in Main Screen RPM Increment 200 X gire i Preferences i Comparison Run Slerences Main Screen Filtering Level Light so Help Tips Help Turn Off Tq HP Use Same Graph Scale Yes v all Help Set Show Comparison Run Also to Yes Tips to include the Comparison run under the Main Screen tab in Preferences Anirem see Yes x Don t Ask About Show Comparison Run Also Yes Updating 230 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 3 New Commands at the Main Screen some for Pro Version Only A Dyno DataMite v3 7 Performance Trends 350 HOLLEY HEAD KIT 2 aG Edit Graph Report Test Conds Engje New get data from DataMite tri N Open From all saved tests Ctrl O Open From History Log Save Ctrl S Save As v Open from Floppy CD Drive A Dy Save to Floppy CD Drive A 12 Email These Results Search For find Runs Import Export Backup Test Data Restore from a Backup Print Options Unlock Program Options Transfer Program to Another Computer Exit Program Ctrl X DataMite Dyno
2. Larger Labels v Largest Labels i OIL PR psi Click on Format then OIL TEMP Legend graph line labels pallet then select what size Corr Tq Legend labels you want Corr HP OIL PR psi OIL TEMP WATER TEMP Exh 1 DegF Corr Tq Corr HP Graph Legend shown here as h h i s i i r 350 holley head kit 23 1 Largest with cursor data for cursor i DS AIR SENSOF 15 44 line available when clicking on a i i PS AIR SENSOF 139 cor oT cot cor 0 RPMR psi 4600 67 238 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 239 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 240 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Index Chamber CCs in Head 82 1 4 mile 225 Chassis Dyno 1 24 35 69 81 101 103 109 186 223 1 8 mile 225 226 Clear Memory 220 60 000 Engine RPM 227 clearance vol 82 Clearance Volume 82 A F 173 181 190 204 223 228 Clutch Slip 69 103 204 226 Absorber Dyno 1 25 26 38 69 72 73 175 181 185 Coastdown 7 68 103 149 205 219 220 221 226 186 189 212 225 226 Coastdown Data 68 103 Absorber Dyno Test Specs 38 175 178 179 color 1 Accel Time for Current Inertia 71 Com Port 26 53 148 200 224 226 Accuracy 4 7 4 20 25 34 38 39 51 53 55 60 61 65 Comment 124 68 72 76 84 85 95 96 103 149 155 159 162 167 Comparison Graphs 162 165 223 1
3. x O Mm x O amp a T 2 a gt ke e N lt x J D a ajdnosouway dweay neyxg ce R O EE R eis oni OEM 40S 94 Ul p pue sjauueug uam 3q dua ysneyxg pue peay yams Im suonoauuos s y Buiddems JPBUUEYD Wdy Jeus aim Bnid dn sueajo xoq dnysid SAl ONpU xOq uoNUB noA Jo peuiuua NO YOR 34 4O 109 y JO apis ne u y 0 pes siy yoeye JO xoq dnyoid aagjonpul Husn y aw Gnd yseds punose aswa siy deM Iam syom de OOL AyesidA 40s u S Wd aeun ouAgq s0q SI Ajuo youbew AyeoidAy payoeyye s jeu Hew yr yeys 10 jaaym ouAg ul Jamod oq Z jeuUeYD Wd sajdepe pod Woo gS N 0 40 pod jenas 10 s ayndwo3 o Ii xog 92g suid ajew yyw xog eal a yoe g UO J0 N9UUOD woyoq papuauwode 0 O UUIOD qL jenas Joyejos jeondo jeuondo Nd 104 Buia oudq xog 02g 194 Appendices Dyno DataMite Analyzer C Performance Trends Inc 2008 o Cc gt Q D Q fa N Ko lt D x O Mm x O amp Mm 2 a gt ke BS N lt x o D jdnosouu y dua ysneyxy me tis yS2q SI A uo youbew AyeoidA payoepe s jou ajdnosoweys dwa peay Oo _ _ PPE e te oh Hew ym yeys Jo jaayn ouq aJeM 40s 94 u p pue sjauueyg usam 3q dua jsneyxy pue pes yams IIM suogoauuos s y Buiddems jBUUBYD Wdy z JeUUBYD
4. Help Click on the down arrow button to select the type of DataMite you are using You choice here will affect which specs are enabled or disabled in this menu p42 Chapter 4 Examples The DataMite II specs of 50 Samples Sec 8 Recording Segments and the number of channels turned on gives a recording time for each segment of 3 13 seconds This is more than enough time for dyno runs which typically require less than 30 seconds The Dyno RPM sensor produces 1 pulse per revolution the same a a 2 Cyl 4 Stroke engine If the program sees a switch set to WOT Switch it will use the Switch Input to determine the beginning and end of the run no matter how the Test Conditions Absorber Dyno Test Specs are set The 4 analog channels are used for Dyno Tq Oil Pressure Fuel Pressure and Intake Manifold Vacuum The system needs 2 more 0 5 volt inputs for Passenger and Driver side A F readings so a dual 0 5 volt analog converter was used on 2 of the frequency channels These were A F instruments the user already had and not provided by Performance Trends 174 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples The system also has a hand held wide open throttle WOT switch on the first switch channel Fig 4 41 This is used to determine the exact start and stop of the dyno run based on when the operator presses and releases the switch Figure 4 43 Dyno Specs Click on Torque Measu
5. located a particular test in the Stroke 1 815 Pk Tq RPM 9750 future To look in different Cyl 1 Pk HP 15 66 sections click on the Folder name 5 97 cid 2 Cycle Pk HP RPM 10000 from the list shown at the lower Time e Date 01 02 2000 right of Figure 2 2 The list of tests Yamaha Pipe test ill then be updated for that 12e E RA at aD Lo 1 1 8 Hi 3 8 Folder To pick a test simply click G2 9 25 flex on it from the list of tests then ENERTIA DYNO click on the Open button For those familiar with computers List All Files by File Name F Folders are actually subdirectories C List by File Name include Eng Folders re ane or folders in the DTMDATA List by Eng include File Name EA fares folder The Name Folder can be Files Not Filtered all files listed A name to display all changed to something else like Heh woe oat Paces or eae Family in Open Filter Advanced under that Folder e Preferences menu Cancel Help han Notice in Figure 2 1 that a current 7 ie Click here to pick a different category or group of plc rials koe ests Folder from which to display a list of Test Files square brackets This is the file p of recorded DataMite data engine data and DataMite and Dyno settings which are currently saved in the Test Library and are the data and specs you are currently working with If you change the engine specs DataMite specs Test Conditions or Dyno Specs make a graph or repo
6. although many times excessive coast down etc changes to these specs will not affect the Runs found OK click here or just press the lt space bar gt to clear this screen 93 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Edit Out Noise Spikes Noise spikes are simply bad data points the DataMite has picked up as shown in Figure 2 46 These can be caused by e Electrical noise especially from the ignition wires e Weak or unusual engine ignition signals e Dirty pulsing unsteady power to the DataMite e Bad or intermittent ground e Bad connections in the wiring e Excessive vibration in a sensor but this usually looks more like simple noise e Or the every popular Stuff happens If these bad data points are left in the data set it reduces the accuracy of any analysis This is especially true for inertia dyno runs if the noise spikes occur in the Inertia Dyno Figure 2 45 Graph Specs to Graph RPM One rather small spike can completely Noise Spikes istor HP Graph Name Troubleshooting Appendix 3 for more Engine RPM information Chni 2 Chni 3 Chni 4 Engine Accel RPM sec The process of checking for noise spikes happens automatically when you Dyno wheel RPM start a New Test get data from DataMite or download data If spikes are Calcd gear ratio found you can select to NOT have them corrected This is useful to Clutch converter slip determine the so
7. furste A Temp deo E Dow Point deg F Dry Bulb Temp deg F Wet Bulb Temp deg F Know Relative Humidity If you know the relative humidity of the air and the air temperature Use Calc Value select Yes Otherwise select No to input Wet and Dry bulb temperatures from a psychrometer Depending on your choice the appropriate inputs are enabled Outside Air Temp deg F Is the outside air temperature when the relative humidity measurement was made For example if the weather service or weather report gives a relative humidity of 56 and a temperature of 68 degrees use 68 degrees This is not the temperature of the air which enters the engine Outside Rel Humidity Is the air s relative humidity as reported by a weather service or measured by humidity instruments Dry Bulb Temp deg F Is the temperature of the dry bulb thermometer on the psychrometer in degrees F This is also the temperature of any thermometer mounted in the shade when the Wet Bulb Temp reading is taken The Dry Bulb Temp must not be less than the Wet Bulb Temp Wet Bulb Temp deg F Is the temperature of the wet bulb thermometer on the psychrometer in degrees F The wet bulb has a wick or cloth covering the bulb which is moistened with water The dryer the air the greater the difference between the wet and dry bulb readings Relative humidity or dew point can be manually read off a Psychometric chart from these two readings This calc
8. 155 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Click on Graph at the topof Figure 4 16 Main Screen After Downloading Test Data the Main Screen then select A Dyno DataMite 3 2 Performance Trends Stock Briggs 01 CFG Engine RPM and Dyno File Edit Graph Report TestConds Engine DataMite Dyno Preferences Help RPM as the only data types Sit amine Has to graph Set Filtering to oe None so that you see the Test amp Engine Conditions Test Comments data in its most detailed and 2 560 Bore 1 13 am 02 25 2005 EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST PIPE un smooth state The graph aur Gabe aan rere ek tikes Ea Presto 00 in Figure 4 18 Click on the 12 54 cid 4 Cycle PkHP 6 59 5000 Help Click on one of the Tabs here to change to a different run Make Graph button to 1 056 Corr Factor Operator STAN Test Data corr to 29 92 7 60 deg dry aic orr To Corr HP produce the graph shown in Figure 4 17 The graph shows no noise pikes and in general data very smooth There is a little jump in Engine RPM when the throttle is closed at the end of the acceleration but In V 3 7 click on the experience tells us this is Troubleshoot button probably real Since it i i for the Data Quality occurs at the very end of the i f graph to appear acceleration not in the middle it will have little affect on the calculated Fann 2600 2000 aan annn 44no annn sann zonk torque and HP In
9. 183 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 184 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 1 Accuracy and Assumptions Repeatability The difference between repeatability and Fig ure A1 1 Repeatable Measurements Accurate Measurements produce the same readings test produce a reading which is close after test but the reading may to the true HP reading which is a not be the true HP reading other accurate dyno testers would get accuracy is a concept you may not understand Graphically accuracy and repeatability are shown in Figure A 1 1 Think of the dyno as an archer which is trying to hit the bulls eye or the engine s true HP measurement Let s say the true HP was 150 HP but one dyno always comes up with values between 142 to 143 HP This dyno is not very accurate but is very repeatable only a 1 HP spread in data Another dyno comes up with measurements which vary from 145 to 155 HP which average out to the true 150 HP This dyno with the 10 HP spread in data is not nearly as repeatable as the first but is more accurate Ideally you want both a repeatable and accurate dyno but this is not always possible When are accurate measurements and repeatable measurements most desirable e If you very accurately want to determine if a modification for example changing the intake manifold has improved the performance the repeatable dy
10. A summary of critical test settings is given here Click on a setting to change it or to bring up he menu where it can be changed in this case shown the Engine Specs menu If you want to Open a previously saved test you can click on File in the upper left corner then click on Open from all saved tests You will get a screen as shown in Figure 2 2 where you are presented with a list of saved tests in the Test Library Some tests are examples provided by Performance Trends As you run tests yourself and save the results you will add many more 10 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions tests to the library These saved files are useful for making comparisons in the future and can be used as test patterns or templates for new tests saving you considerable time by not having to type in specs which match a past test Figure 2 2 shows that the Test Library is divided into sections called Folders in Figure 2 2 to help organize a large number of tests For example all tests for the company ABC Engines coil be Figure 2 2 Opening a Test File saved under a section name of Open Test File ABC ENG All 4 cylinder Ford tests could be saved under a section name of 4CYL FORD Preview am 300 cfg Engine Yam100 0003 This will Save considerable mise Type of Run Meas Tqg HP from Accel and confusion when trying to 5 Tests in Library Chosen File yam 925 cfg Bore 2 047 Pk Tq 8 26
11. C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 8 2 Calc Gear Ratio Figure 2 37 Calc Dew Point Calc Dew Point deg F This menu is available by clicking on the Gear Ratio Clc button in the Dyno specs menu Calc Dew Point Type Weather Inputs Know Relative Humidity Yes 2 Click on this combo box to select from e Gearbox Only Outside Air Temp deg F 7 e cen ae Outside Rel Humidity e Primary Ratio amp Chain Drive z e Primary Gears amp Chain Drive Dig Bulb Temp deg Wei Bub Temp dea E For motorcycles with a Primary gear drive between the engine and transmission Select Primary Ratio amp Chain Drive as the Type if you know the Primary Ratio Select Primary Gears amp Chain Drive if you Use Calc Value know the Teeth on the Primary Gears or Sprockets Depending on your choice certain inputs will now be enabled Teeth Engine Gear Teeth Engine Primary Gear This is the number of teeth on the gear or sprocket attached to the engine crankshaft or what will spin at engine RPM when the clutch has locked up If you selected Gear Reduction amp Chain Drive as the Type typical of motorcycles this will be called Teeth Engine Primary Gear and is the teeth on the sprocket or drive gear on the engine s crankshaft In almost all cases this number will be smaller than Teeth Dyno Gear Teeth Dyno Gear Teeth Clutch Primary Gear T
12. C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Include Test Comments Select this option if you want all the comments for the Test File printed with the results Request Report Comment Select this option if you want to be asked for a comment for each particular report you send to the printer These report comments are useful to identify important points for future reference like engine modifications special test conditions etc Larger Font Print Size Check this option if your particular printer is printing the results with a small print font This option will increase the font size for some parts of some reports Also see Preferences for Selecting Printer Fonts page 27 Figure 3 26 Print Commands under File Options Pro Version Only IS DSSHI w Engine Specs YAMAHA New Engine Open Example Engine e Open Engine Save Engine Cam Heads Click on File in either Save Engine As the Engine Spec menu aaa 2 047 Headts to display these Print Pa Con Opti ma Print Blank Worksheet ptions Windows Print Setup cid Ylv Dia PotCCs ARatio Lash m 11 0 ccs Block Stack Other Print Options Figure 3 27 Print Button Other menus have print menu commands or print buttons as shown in Figures 3 26 Engine Accel RPM sec and 3 27 Dyno wheel RPM Calcd gear ratio Clutch converter slip Corrected flywheel torque Corrected flywheel HP Other Graph Specs Ti
13. Include Text Leave this box blank to strip out all titles and letters leaving only numbers Convert to Columns If you do not select this option data will be written to the file much like it is displayed in the report on the screen Select this option to have the report turned on its side that is the rows will become columns and the columns will become rows File Name Enter a file name for saving this ASCII file You can also include the complete path plus file name Checks are made to ensure what you enter is a valid file name and that you are not overwriting an existing file If just a file name is entered the file is written to the Dyno DataMite Analyzer folder directory the folder which contains the DTM EXE program file See Section 3 5 for more details on files and file names 107 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 108 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 3 Graphs Check Appendix 7 page 223 New Features in Version 3 7 for latest features Graphs are obtained by clicking on the Graph menu command at the top of the Main Screen Figure 3 12 shows a typical graph and descriptions of some of the basic graph screen items Figure 3 12 Primary Graph Screen Items Command buttons Some commands can only be done through these buttons some of these buttons just provide a graphical button for performing action of some menu items Menu bar prov
14. New Features We ve added a button in Graph Settings screen to Load Settings for Std Tq HP Graphs See Fig A7 1 We ve added a Preference under the Main Screen tab to allow a Comparison Graph of the previous dyno test to be included on the main screen for comparison This is very handy to immediately check how repeatable your runs have been and if a repeat is necessary See Fig A7 2 This is available in the Pro version only We ve added a Do not exceed RPM warning in the dyno specs screen and a button for more information about safety of flywheels and rotating components We ve also added output in Estimate Required Inertia calculations of MPH for the wheel being sized This will help estimate required dimensions for chassis dyno rollers We ve added a Click here warning when the dyno results look to have problems This label appears on the main screen and when you click on it a list of possible problems and solutions appears in Notepad We ve made program less fussy about what it would call a noise spike for analog channels Modified routine that looks for noise spikes so that it now looks 5 data points ahead to see if the signal dropped back down to a normal level used to be only 4 data points When editing out noise spikes the program now just gives just one message listing the noise spikes found not one message for each channel Program now gives better explanation of where noise spikes are found Program no
15. include File Name diterert Fadar Files Not Filtered all files listed a name to display all i the tests saved Op Filter_ Advanced eld reel te al Cancel Help Delete C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Comparison Graphs Graphs are often the most insightful way to compare two dyno runs You can see at a glance how the runs compare where one setup is stronger more torque and HP You can also see if the data looks accurate If you know something about how a modification should affect the engine you can see at a glance if it did For example if you made a minor change to exhaust pipe length and 1 4 inch would be a minor change you would expect the 2 dyno runs to be fairly similar First check the data quality of the tests you want to compare If you checked the data quality right after you first downloaded the tests you could skip this part now Click on Graph at the top of the Main Screen and make the settings shown in Figure 4 24 You will graph Engine RPM and Dyno RPM vs Time for all data with Filtering set to None You will obtain a graph like Figure 4 25 There is only one minor spike in Engine RPM which the program could not Edit out If this spike had been in Dyno RPM the data would not be very good See Section 2 10 on Editing Out Noise Spikes However since it is relatively small in the Engine RPM the data quality is OK Figure 4 24 Graph Specs Menu Figure
16. test should have been repeated another way to check its validity is to check if its trends fall in line with other modifications In the Basic version you can only compare 2 tests In the Pro version you can compare many more The limit is determined by how many data types you want to graph To add more graphs click on the Add Test command and pick the other test run in this series 9 50 9 25 and 9 00 exhaust flex You would obtain a graph as shown in Figure 4 34 showing all 5 tests 166 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 34 Graph Comparing 5 Runs Pro version only w DataMite Analyzer v2 0 YAM 1000 CFG x Back File Format View GraphType AddTest History Log Single Test Help ea i oo ra me orrection Factors al E 7 T lel elelee beel x t Eerst scales to obtain screen Corr T Specify Scales axes f yam 1000 1 shown below This 18 0 Corr Tq lets you check that Como all tests you are Pa yam 975 1 comparing are Correction Factors z P Corr Tq corrected to the j Corr HP aa same conditions ere i A and that the Corr HP Correction Factors vam 925 1 themselves are not Corr Tg too unusual EE HP indicating possible yam 900 1 errors entering Corr Ta eather conditions Corr HP Turn Cursor On bennacn SS ert Area Pri ee ee 1 DataMite Analyzer Correction Factors for Current Tests Cor To 29 92 60 dry Corr Factor 1 012 YAM 1000
17. 16000 12000 8000 4000 pad 4 7 oM aa 35 0 Time sec ff i i 35 0 Time sec If many Noise Spikes occur close together the program can not accurately determine if a eee TEM vs Tene eee eee spike is noise or real data and leaves it in 1520 0 F 1480 0 14400 1360 0 13200 fe l an z Dyno RPM after program edit outs Noise spikes 1240 0 1200 0 1160 0 1120 0 7 12 8 Time sec Errors Caused by Relatively Minor Noise Spike W DataMite Analyzer v2 0 INERTIAS CFG El Back File Format View GraphType AddTest HistoryLog Single Test Help Back File Format View GraphType AddTest HistoryLog Single Test Help el Ce kekit ef ey Beel eLA bee Tt Traven ser scaeg Corr Ta Corr HP vs RPM inertiag 1 Corr Ta corr HP vs REM inertia 1 x i 10 0 A i i Corr Tq i Corr Tq Corr HP Corr HP i i 1 1 1 1 1 1 1 1 1 1 saa Naas eed Nie aialeaaten Cee ey hina mincaro J 1 E nia eies ss EE PE Datei te ial Kiem area 1 1 1 r 1 5 1 1 1 1 r 1 High error in torque and HP caused Correct Torque ae HP afier y relatively small noise spike program edit outs noise e spike 1 1 1 1 oO 1 n 1 1 2400 3200 4000 4800 5600 6400 7200 RPM 2400 3200 4000 4800 5600 6400 7200 RPM 96 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 97 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 98 C
18. 219 223 241 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction Chapter 1 Introduction 1 1 Overview of Features The DataMite and Black Box data logger hardware and Dyno DataMite Analyzer software by Performance Trends Inc is a system to let racers engine amp chassis builders and motorsports enthusiasts measure dynamometer data The Dyno DataMite Analyzer can analyze this data with graphs comparison graphs and reports This analysis lets you calculate torque and HP clutch slip temperatures pressures etc to detect performance differences from engine modifications The software is available in 2 versions Basic and Pro The Basic version has fewer options and features to make the program easier to operate In the Pro version you have additional data recording and analysis features Should you start with the Basic version you can easily update to the Pro version later The DataMite and Dyno DataMite Analyzer software provides sophisticated data acquisition and computer analysis at a fraction of the cost of other systems The Dyno DataMite system s major features are listed below Basic Features e Capability to configure and calibrate the software for most any combination of sensors you have installed on the DataMite data logger e Capability to tailor the program to work with most any type of dynamometer including inertia wheel types absorber types with load cells and lever arms and even ch
19. Add New Folder Pick this option and then Run 1 A A ou can type in a new folder name This Te i see new folder name will be added to the list so ATEST w Save a Test File hat you can save the test file to that folder 0 if you wish The word folder can be ee EA fi g15 Str as New Test Name CAMTEST2CFG changed to most any word in the Preferences menu 5 97 cid 2 Folder Name tkrause2 M 996 Corr New Folder Name Type in a New Folder Name here if you select Add New Folder as the Folder Enter a New Test Name and click on OK The curent Click here to bring up standard Test name is given should you choose to modify it Windows File Save screen to let you slightly for the new name Use the Delete key to erase save a file in most any folder directory the name if you want a completely new name and disk drive and to most any file If you want to save the Test under a different Folder name Pro version only Note that files name click on the down arrow button and select one Saved this way are not found in the Select the top choice of Add New Folder and you will Standard Test Library and are not be asked for a new Folder name to add to the list of searchable using the Filter options Folders discussed in Section 3 6 To save a Test File you will be presented with the Save Window as shown above The program suggests a new test name which is the same as the current test name sh
20. See Figure A7 10 For the Black Box II we ve made several refinements in the software e The program is now more forgiving at working with data which could have a bad bit in the sample time channel This could have put large gaps in data sets e If Black Box II is very cold or humid the weather channels can start to look like Frame Separators Then the box will actually look like it s not communicating We ve tried to fix these errors with some software modifications e We ve put in better diagnostic messages for when Black Box II can not communicate The program will now give an indication of how far along in the start up procedure it gets before it looses communications e We ve speeded up the Start Recording Switch for Black Box II to trigger twice as fast as before This is available in the Pro version only e We ve added a method to see if Black Box II data which appears to have just 1 or 2 corrupt data points can be repaired e We ve added a Troubleshoot option for Watching Streaming Data for Black Box II e We ve added checks and actions for trying to salvage partially corrupted data recorded from Black Box II For the DataMite II we ve made several refinements in the software e You have an option of adding a Mini Black Box to another serial port so you can use some digital On Off relays for turning items On and Off at certain conditions This may be expanded to other data logger types in the future This is availa
21. Suspension Analyzer 1 1 Tip Tip The Arrow buttons like the one you just clicked on let you Shift or Zoom the graph left right up or down If you want to Zoom or Shift at a faster Command Buttons Click on OK to keep your changes Click on Cancel to abandon not keep your changes rate hold down the shift key while clicking on these buttons Click on Help to bring up help describing these Preferences Click on Turn On Restart Showing Help Tips to start showing the pop up tips for critical parts of the program operation like when the y Hel program was first installed These Tips usually appear only once C Don t show this again es p each time you run the program unless you click on the Don t Show 26 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions This Again box in the lower left corner of the tip See Figure 2 8a Click on Stop Showing Help Tips to stop showing the pop up tips for critical parts of the program operation like when the program was first installed This is not recommended unless you are very familiar with the program Click on Set Graph Colors to bring up the screen below Figure 2 8b where you can customize graph colors Figure 2 8b Screen for Customizing Graph Line Colors w User Specified Graph Colors Ed SS ge oe ee a BackgroundColor re ee Go J G2 G3 JL 4 line 9 F Line 13 8 7 i 1 11 E 4 4 gt ont 4 gt
22. The serial cable from the DataMite II to the computer can be extended as can the push button control panel s cable up to 50 feet if necessary Performance Trends has cables which do this properly DataMite II Software Setup The DataMite II is hooked up to a Go Power water brake The torque signal is through a pressure sensor which is Tee d into the hydraulic line that goes from the hydraulic load cell to the large pressure gauge that displays torque The pressure sensor must be attached to the first analog channel to record Dyno Tq The Dyno Tq channel has been calibrated following the procedure in Appendix 5 This particular DataMite II has its 16 analog channels configured as 4 0 5 volt channels and 12 thermocouple channels The thermocouples are used for the 8 exhaust temperatures oil temperature water temperature and engine air inlet temperature The 12 thermocouple is not being used 173 C Performance Trends Inc 2005 Dyno DataMite Analyzer Figure 4 42 DataMite Il Configuration w Data Mite Specs Back File DataMite I Options Current Readings Troubleshoot Com 2 31 Channel DataMite I Y Sampling Rate samples sec Help Station None DataMite Il Recording Segments Approx Record time segment 3 min 13 sec l Channel Settings D Engine RPM 2 Frequency 2 rd Frequency 3 ya Frequency 4 5 Frequency 5 PM P AFR D AFR Chnil 4 Chnl 5 Torque Oil Pres Fuel
23. a2 11000 6 84 11500 6 48 12000 6 62 12500 6 52 13000 i 5 96 13500 4 99 14000 l 4 12 14500 3 29 15000 2 76 Click here for History Log shown below 7 51 Corr HP 7 59 8 85 10 63 12 47 History Log Click in this column to put a Yes there to indicate this test should be included in the report for comparison 12000 6 60 2 T B 6 16 j j 0 44 6 41 0 25 6 41 13000 5 41 l i 0 89 6 10 0 69 6 48 im Test History Report Tests Marked Yes Report Current Tegt Only Clear erase History Print Help yam 1000 YYam1 00 0003 01 02 2000 8 45 9200 yam 975 Yam100 0003 01702 2000 8 51 9600 15 94 10 YAM 950 Yam100 0003 01 02 2000 8 62 9600 16 31 10 YAM 925 Yam1 00 0003 01 02 2000 8 28 9800 15 72 10 YAM 300 Yam100 0003 01 02 2000 8 92 9800 17 11 10 reed090 Yam100 0003 04 11 2000 12 59 10400 26 05 11 fia Fiat009 01 08 2001 82 50 1600 51 06 42 black box ii 02 25 2005 9 82 3000 6 59 500 Click in Report column to select or de select tests for Reporting Slide button right for more History info Tq HP corr to 29 92 60 dry Click here to make report of tests marked Yes for Report Open Edit Save These Settings 105 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples You can click on the Open Edit Save These Settings button at the bottom of the Report Data screen to be presented with the Saved Report Set
24. 1 1 1 L 1 hc es ft at a 4 92 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions If you click on Edit then Delete 7 7 Resinninsor Bad of File you will Be Figure 2 43 Options Presented When You Click on OK presented with a graph screen showing keep this section Engine RPM for the this entire test Save This Section to New Name x Click and drag the mouse to draw a square frame around the portion of the test you want to keep The rest of the Do you want to save this section of test starting at 1 seconds and extending to 17 seconds to the current file name test will be deleted When you are satisfied with the section you ve drawn click on OK keep this section REEDOS CFG click on Yes to be presented with the options shown in Fiene 243 Click on No to save to a New Name or click on Cancel to not save any changes If you select No you will then be asked for a new name to which this data will il i j Cancel be saved This is the method used to break up 1 test into several smaller tests In this case shown you would save this section to a new name perhaps REED 1 which would then become the Current Test You would then have to open the original REEDO9 test again so it becomes the Current Test and do the Delete Beginning or End of File command again This time draw the frame around the 2nd run and save this file to a name of perhaps REED
25. 7 Use these specs to have program change colors Click on Options then Analog Filtering to select how much filtering yellow caution red warn of data displayed h on Current Readings display You can change smoothing should be done to just the analog readings RPM readings are not settings for several channels before clicking on Keep Changes Set a limit to O to have it filtered ignored Note The program can NOT shut down the engine based on these settings Trace Recorder Pro Version Only Click on Trace Recorder to select which channels should be shown on a time graph and what the scales should be Figure 2 34 Trace Recorder AI Drag Race DataMite v3 2 Performance Trends broged1 CFG a x fle PETT De Close back Options Trace Recorder Help ADB F Trace Recorder Date Trace Recorder Speed Show Trace Recorder he Tabs S000 ferent run Figure 2 34a Setting Options for Trace Recorder w Real Time Options xi Trace Recorder 1 Options for configuring the trace recorder EngRPM Front RPM 2000 10000 2000 Channel Aih Temp Ra Range User Specified 7 User Specified Max User Specified Min Timeivisions are 5 seconds gt Trace Recorder 2 Channel 1 EngRPM X Range fo 12000 7 User Specified Max iti User Specified Min zey l Note Pick one of the DataMite channels to be dis
26. Appendices RPM 1 4 8 15 16 17 23 25 26 35 36 37 38 39 54 55 56 58 65 68 69 71 72 75 76 78 83 95 101 102 103 104 109 116 143 144 148 149 150 155 156 157 162 165 167 168 169 170 175 177 178 179 187 189 190 191 192 193 201 202 204 205 211 219 220 225 226 227 228 RPM Accel Times 101 104 RPM sec 103 Runs Graph 135 SAE 35 Save 1 8 9 11 12 17 18 20 23 24 25 35 36 44 48 51 53 60 61 65 70 89 93 94 107 120 127 128 129 130 133 134 144 149 152 178 200 215 224 Save As 18 60 70 130 Save As Master DataMite Specs 60 Save As Master Dyno Specs 70 Sections in Main Wheel 67 68 Sensor 7 24 54 55 56 57 58 59 69 77 103 144 178 191 201 211 213 214 215 217 Sensor and Calibration 24 54 56 77 144 178 201 215 Set Graph Colors 28 Setup 4 51 65 94 144 172 224 Show Files Only Fitting These Conditions 132 Spark Plugs 46 Specs for RPM Graphs and Reports 26 Start Dyno Run button 20 89 150 159 175 225 Start High Drag to Low RPM 225 Start Low Release to High 175 178 Starting Engine RPM 71 72 Starting RPM 71 102 Std Graph Title Created in History Log 25 27 Stroke 16 19 44 45 55 69 82 134 Stuska 192 Summary 17 35 157 158 207 Summary Graph 17 Tabs 15 23 192 Tabs dyno runs 15 23 24 25 Tech Help 3 4 6 Temperature 32 33 54 77 95 Test Com
27. This choice then disables Width and enables Weight Now you can type in the weight directly and the Inertia is calculated 65 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Pro Version In the Pro version the process is the same except that you can identify many more components of the system You can also specify different sections of the Main Wheels like a wheel with a step thicker sections at certain diameters First select the Sections in the Main Wheel at the top of the screen If your wheel is of a constant thickness select 1 If you select more than 1 you will set the inside diameter of a larger section to the outer diameter of the smaller section Then select the Main Wheels installed in the system typically 1 Some Inertia Dynos let you add or remove Main wheels as necessary to simulate different acceleration rates For other components which are part of the inertia wheel assembly click on the Check Box Then their input specs will appear and you can enter their specs similar to the Main Wheel It does not matter what you call a component If you have 2 brake components enter the measurements of 1 brake component as the Brake and the other component as a Misc Component You will see that for light components which have relatively small diameter they contribute little to the overall inertia of the dyno See the column called Total Therefore the measurements of these small components contr
28. Tie Wrap Inductive Pickup Wire to Spark Plug Wire For Stronger Signal Wrap Inductive Pickup Wire Around Spark Plug Wire Several Times For Weaker Signal Move the Inductive Pickup Wire a Few Inches Away from Spark Plug Wire Check Appendix 7 for info on new Inductive Pickup Box which has Adjustment Screw and does not require this type of adjustment Figure A3 3B Mounting Suggestion to Avoid Vibration Problems Bracket should be as short as practical and stiff fairly For other RPM signals using dyno RPM sensors the problem may be thick material 202 Unevenly spaced magnets will cause noisy or jumpy data not noise spikes See Appendix 2 about magnet spacing The sensors may be getting hot If the problem appears Ok when you first start but get noisy when the engine heats up this is likely the problem You may have to position the RPM sensors away from the brakes or possibly the exhaust You may be specifying the wrong magnets in the DataMite Specs menu A magnet may have fallen off There may be metal debris or shavings on the magnets about 12 gauge or thicker Rubber Washers on top of bracket bottom or both Mounting surface trans extension housing rear axle housing brake backing plane etc The sensor may be false triggering due to vibration See Figure A3 3B and A3 4 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Eliminate Electrical Noise Sources Fi
29. Typically this should be set to Yes unless directed to do otherwise by Performance Trends The Black Box II ignores this Preference and always works like this is turned On Operation Tab When Getting New Data from DataMite Pro Version Only Automatically Filter Out Noise Pro Version Only Choose Yes for Automatically Edit Out Noise and the program will automatically remove noise spikes from each new test you record from the DataMite This is good for beginners Choosing No can be useful to troubleshoot the source of the noise Display Run Summary Pro Version Only Choose Yes for Display Run Summary and the program automatically shows a summary of how it divided a test into different runs This is good for beginners Choosing No can save time by eliminating extra screens when getting downloading data from the DataMite Require Engine for New Test Pro version only Choose Yes and whenever you start a new test the program will not let you proceed until you have entered an Engine This is useful for shops which carefully number every engine they work on It also encourages you to use engine s which follow a certain format generally several letters followed by several s which increase in sequence 24 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions For smaller shops or shops which are less fussy about engine s you may want to choose No Then you can type in most any number you want o
30. directory under PERFTRNS PTI folder directory You can copy Windows Dyno DataMite Analyzer files from programs on other computers to this folder directory and they will be found by the program Theis v3 2 will read files produced with the older v2 0 Just copy them into a folder under the DTIMDATA folder other than the Examples folder The Save to Floppy and Open From Floppy commands discussed on page 18 are an alternate perhaps easier way to copy files from one computer to another In v3 7 these files are stored in the C Program Files Performance Trends Dyno DataMite v3 7 folder The method of saving an Engine file is exactly the same as complete Test Files except that you access the Save menu by clicking on File at the top of these individual menus as shown in Figure 3 29 These files are saved to the ENGINE folder subdirectory Figure 3 31 Advanced Open or Save Screen Advance Open or Open a File Save Screen File name Folders d vbwin cam a examples If you click on the Advanced Cancel button in either the Open or Save cc8094 s r04 yds ud6060 s 107 a vbwin As screen you will obtain the xcrltrk pti a Network screen shown in Figure 3 31 From xdrag pti I cam anzr this screen here you can open or lt j camdata save most any file on the computer examples l Read only on most any disk drive List files of type An Files z Tips to Advanced Users DataMite test files actually consist of 3
31. inputs like Stroke Crank Weight etc are used to estimate Engine Inertia Many of the other specs like Head s Cam etc are just spots to record info about this engine Engine Specs are discussed in detail in Section 2 4 page 43 DataMite The DataMite command opens up the DataMite Specs menu where you can describe the DataMite you are using what each channel is recording and how each channel is calibrated 18 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions The specs in the DataMite menu are critical for accurate results Be sure to read and understand the DataMite Specs as discussed in detail in Section 2 5 page 57 Dyno The Dyno command opens up the Dyno Specs menu where you can describe the Dyno you are using These specs are critical for calculating torque and HP from the raw data you are actually recording The specs in the Dyno menu are critical for accurate results Be sure to read and understand the Dyno Specs as discussed in detail in Section 2 6 page 65 Preferences Preferences let you customize the program for your needs and for your computer and printer See Section 2 2 page 23 Help Click on Help for several options to help describe your options at the Main Screen and for other information to help you understand how this program works 2 1 6 Start Dyno Run Click on this button to start a new dyno run The Current Readings screen will appear where you can watch th
32. it is CRITICAL that you are NOT spinning the engine also Coastdowns can only be done with dyno systems with clutches which complete disengage the engine or one way clutches See Example 4 1 for a procedure Other Specs For either the Basic or Pro version tell the program the Type of Dyno and any Gear Ratio between the engine and inertia wheels Click on the Gear Ratio Clc button to calculate the gear ratio This calculation is discussed in Section 2 8 2 Dyno Type Select the Type of Dyno you have This choice will have a huge impact on how this screen looks how various DataMite channels are used and needed and how the data is calculated Your choices are listed in Table 2 1 with their typical applications and tips 67 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Table 2 1 Notes on Different Dyno Types Engine direct drive This is the choice for most absorber dynos where the engine is direct coupled to the dyno and both spin at the same RPM You will usually use Channel 1 in the DataMite specs as Engine RPM but use a dyno RPM sensor mounted to the dyno You will call the DataMite Sensor amp Calibration a 1 Cylinder 2 Stroke to signify 1 pulse per revolution if you are using 1 magnet on the dyno shaft which is typical Engine with clutch This is the choice for most small engine inertia dynos where the engine goes through a clutch to the dyno and there typically is a gear ratio between
33. it is possible for stray high voltage ignitions signals to pass back through the DataMite and destroy your computer s serial port Dyno Test Procedure 1 Power up the Black Box II The power LED will come on Start up the DataMite program if it is not running and click on the Start Dyno Run at the upper left corner of the main screen or just press lt F5 gt at the main screen The Current Readings screen will appear 2 Start the engine and bring it up to the point where the clutch starts to engage if you have a centrifugal clutch like most cart engines or to some RPM below where you want to start recording data 3 Start the Black Box recording data by pressing the lt F1 gt key on the computer keyboard at the Current Readings screen 4 Wait for about 5 to 10 seconds then go to full throttle on the engine The engine will accelerate with the Inertia Wheel When you have reached the highest RPM of the test close the throttle to have the acceleration stop and let the dyno and engine coast down A system with a one way clutch makes this easy on the engine The engine de couples from the inertia wheel as soon as inertia wheel starts to drive the engine so the engine coasts down and stops in just a few seconds 5 About 5 or 10 seconds after the run press the lt F2 gt key on the computer keyboard to stop data recording You will be brought back to the New Test screen Figure 4 8 Basic Test Procedure for Inertia Dyno 5 Close
34. like 70 deg for a thermocouple at room temperature For a shock travel sensor accelerometer throttle sensor that is typically 0 Do you want to continue J m 2 Notes on obtaining a x Correction Factor 4 The program alib AF Shock 0 1000 Hz 0 8 AF Shock determines the correct NPM S ensor Specs Correction Factor and loads it in 0 Analog Converter RF Shock Travel x 1 Click on Read to start process of getting a Correction factor for an 8 inch shock travel sensor with the car at ride height 3 Enter the number you want the sensor to read with the sensor in its current position or state This is typically 0 5 Click here to keep calibration specs and 2nd Value freq hz Correction Correction Desired Reading at this Condition What do you want the sensor to read at this condition If you are Zeroing out a sensor enter 0 adjustment after the calibration is complete For Cancel ter you have entered the calibration for a shock avel sensor you may want to adjust this to read C when the car is at static ride height OO Keep Specs Help Cancel Pain The process above works well for Linear Sensors A linear sensor is one where if what you are measuring doubles the signal doubles also Some sensors are non linear and then it may be best to use the Sensor Type of Custom user supplies table 217 C Performance Trends Inc 2008 Dyno DataMite Analy
35. shchshulihshulisha a esa sa ise s 3 3 o Oo S N S aw 4 y 3 o N wn a a 4 4 PAF TEN an ian ms Er T Line 10 TEL Fy F _ N or ae es se Taal ss ss ERP PER PER PER PER Vey Te 0 amp amp N ee M M So s o a a clulishaluliha N 4 M 4 5 5 amp w w a a w 4 3 a w D oe e i 3 a w S PELE vlulihelulha 3 a w wo Ww w N Nf 4j 4 kd o Po N EEH Line 43 Line 44 ine 45 ine 46 ine 47 ine 48 12 E 13 14 vludthlulhela _ 4 PELE w OK Cancel Help Load Default Colors Check Appendix 7 New Features in Version 3 7 for several new Preferences which have been recently added 27 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 28 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 29 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 3 Test Conds The Test Conds let you record weather conditions on which corrected torque and HP numbers are based In the Pro version it also lets you record some running conditions and specify how you want the torque and HP data corrected Check Appendix 7 for new features for the Test Conds screen and options Type of Test Click on down arrow to select the type of test you ran This choice can have a large impact on what dat
36. ve got a new Inductive Pick Up for cleaning up the engine RPM signal from a spark plug wire It now has an adjustment screw to let you adjust the signal to be stronger or weaker Prior to this signal strength had to be adjusted with adjusting the signal wire see page 202 in Appendix 3 Troubleshooting See Figure A 7 10 228 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A7 1 Standard and User Defined Graph and Report Formats Graph Data Engine Accel RPM sec Dyno wheel RPM Calcd gear ratio Clutch converter slip Observed chassis rolls torque Observed chassis rolls HP Corrected chassis rolls torque Corrected chassis rolls HP Other Graph Properties Time or RPM Graph v What to Graph Just Power Run 1 Light some v Filtering Notes Data Selected to Graph 8 types max Corrected chassis rolls torque Corrected chassis rolls HP Click here to load settings above to produce Standard Report Data Basic Report Specs Type Pick Individual Items x Ta amp HP vs RPM 3000 7000 P vs RPM 4000 7000 Time or RPM Report Tq Click on a saved Report Format to choose it for Opening or Deleting Starting Time sec Click here to display the Saved Report Settings section on the right where you can Save the current Settings on the left to a name or Open or Delete sets of saved settings Saved Report Settings Name Tq amp HP vs RPM 3000 70
37. xX Back File Format View Graph e AddTest Hist Log Single Test Help Te SE eed Meet econ Corr HP vs RPM yam 1000 1 corr HP yam 975 1 corr HP am 950 1 y cor HP am 925 1 y corr HP am 900 1 ees Be ere ee w Test History Tests Marked Yes Graph an Test Clear lees History Prift Ses 1000 cfg exampls2 yam 975 cfg exampls2 yam 950 cfg Yam100 0003 01 02 2000 exampls2 yam 925 cfg r 3 Yam1 00 0003 01 02 2000 exampls2 yam 900 cfg Yam100 0003 01 02 2000 examples yam 1 000 cfg Yam100 0003 Yam1 00 0003 01 02 2000 examples yam 950 cfg Yam 00 0003 Yam100 0003 01 02 2000 examples yam 975 cfg yamaha 9 75 Yam100 0003 01 02 2000 examples yam 975 cig fami 00 0003 fami 00 0003 01 02 2000 E Click in Graph column to select or de select tests for graphing Slide button right for more History info Tq HP corr to 29 92 60 dry When comparing Corrected torque and HP for different tests it is important that the weather conditions you ve entered for each test in the Test Conds menu are accurate These 5 test were all run on the same day so the weather conditions should all be quite similar A quick way to check this is to click on View then Correction Factors as shown in Figure 4 34 If the Correction Factors are all quite similar then the weather conditions must also be similar The 9 00 flex s Correction Factor is the only one
38. 01 for this stock Once a New Test is started you can easily erase or modify any of the specs listed above 88 Any specs not selected to Keep will be mostly blank when you start the New Test Briggs engine The program adds the CFG extension to produce Stock Briggs 01 CFG 2 Operator for New Test is the name of the operator for this test Click on Pick to pick an operator name already used or to enter a new name The program defaults to the operator of the current test Through the Operator Menu discussed in Section 2 1 you enter a new Operator name of Jack 3 Engine for New Test is critical for shops who use a engine numbering system Click on Assign to create a new Engine based on the last Engine assigned incremented up by 1 or to start with a new type of Engine Through the Engine Menu discussed in Section 2 4 you enter a new Engine of Stock Briggs 0001 If you do not want to be forced into a certain format for entering engine numbers or want to be able to leave the Engine Number blank choose that Preference in the Preferences menu described in Section 2 2 4 Folder Name for New Test is the folder in the DIMDATA folder where the test will be saved The program may not be using the name folder for spec but whatever word you have assigned in the Preferences menu The folder name Examples is reserved for Performance Trends example tests supplied with the program and can not be used for your tests By clicking
39. 1000 CFG Back File Format View GraphType AddTest HistoryLog Multiple Tests Help Tele leil bdeli 1 t raven sete yam100 0003 1 Corr Tq Corr HP i i 2 es corr Tq care HE REM 4 4 a L 4 4 4 ri 3 6000 7000 8000 g000 410000 11000 12000 13000 14000 15000 RPM w DataMite Analyzer v2 0 YAM 1000 CFG x Back File Format View GraphType AddTest HistoryLog Multiple Tests Help lal le eeel Lede Dede belo Lz t rurvien fier scaed Corr Aia coir HP vs REM yam100 0003 1 Dyno DataMite Analyzer 4 6000 7000 8000 g000 10000 11000 12000 13000 14000 15000 RPM Chapter 4 Examples Note that the peak is the highest and the valley is the deepest when filtering is the least in this case None These torque and HP graphs look airly smooth even with Filtering None so even None would be an acceptable for these torque and HP graphs Filtering None In most cases for torque and HP graphs Filtering Some is the best choice The peak torque and HP values for this graph are fairly accurate and repeatable For other types of data Some or None is best Picking a Filtering Level too high can distort the data and cover up problems with the data Filtering Some Note that the peak is the lowest and the valley is the least deep when filtering is the most in this case Heavy Heavy Filtering can hide problems with data Before you use Heavy Filtering be sure to check the data with Filtering set to None first Fil
40. 2 Redetermine Beg End of Runs Any time you download data for a New Test the program checks for the type of test runs you ve specified Accel to Meas Tq HP or Custom It looks for the patterns in the data it expects for say an Accel to Meas Tq HP When if finds a pattern it remembers the beginning and end of this pattern for each pattern it finds It then gives you a summary of what it found See Figure 2 44 You can also do this at any other time The only reasons for doing this is when you have changed something about the test so that now the pattern looks i different than when you first Figure 2 44 Redetermine Beg End of Runs downloaded the data from the w Summary of Lap Run Analysis x DataMite These changes 5 could include When analyzing data file REED09 DAT e You have Edited Out As Accel to Measure Torque and HP some Noise Spikes e You have Cut the The DataMite Analyzer program has found Ee pnnine Oud ot Number of runs 2 Data so the data file now Minimum run time 9 83 looks different Maximum run time 11 5 e You have changed the Median run time 9 83 Test Type from Custom lf this d i is does not appear corect w Accel to Meas Tq Hp Check the DataMite Setup Specs for correct Data Type and Auxiliary OF ACS VETS RPM sensor descriptions e You have changed the Use the Edit command to Cut Beginning or End of Data Then DataMite or Dyno Setup erase parts of the data file which may include engine warm up
41. 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 6 Calculation Menus The following section explains the user input for specs listed with Clc buttons These specs are ones where you can simply enter a value or click on the Clc button and the program will present a menu of inputs which will calculate that particular parameter These menus are like computer scratch pads for calculating specs like Compression Ratio from other inputs Notes The starting values in each calculation menu are always blanked out Once enough specs have been entered the calculated value s at the top of the menu will be displayed This calculated value s will now be updated each time you change a spec If you want to use this calculated value click on Use Calc Value If the calculated value is within expected limits it will be loaded into the original menu If you click on r 7 Cancel you will be returned to the original Figure 2 35 Typical Calculation Menu menu with the original value unchanged If Click on Clc button to bring up Calculation Menu you click on Help you will be given a general explanation of calculation menus IS DataMiti w Engine Specs FOAD 5 0L xix and a page in this section for more info File Edt amp Back File Help about the particular menu you are using Engine Custogter amp Comments i p y g Engine if ee Stock 5 Calc Compression Ratio Total Chamber CCs 3 1
42. 27 48 62 72 81 90 152 History Log 6 1 18 24 27 99 109 111 112 133 134 135 167 168 169 224 Hold Off 227 horsepower 103 HP 1 8 9 12 15 16 17 20 23 24 26 31 34 35 51 55 62 65 68 69 73 90 94 95 96 103 111 132 134 149 152 154 155 156 157 159 161 162 165 166 167 168 169 170 185 186 192 204 205 220 224 225 226 Humidity 32 84 85 Hydraulic 70 73 Icon desktop 7 123 130 144 200 207 208 209 Ignition 46 197 Include Averages 102 168 Include Text 107 Inductive Pickup 143 189 190 193 201 202 203 204 Inertia 4 7 1 3 4 17 19 25 26 31 35 55 56 65 66 67 68 69 70 71 72 76 95 143 147 149 150 151 154 155 159 181 185 186 190 191 194 204 211 219 220 225 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Inertia Dyno 4 1 4 17 25 26 31 35 55 65 66 67 68 69 71 72 76 95 143 147 149 150 151 154 155 181 185 186 190 191 204 211 219 220 225 Inertia engine 45 69 Install 4 51 65 94 144 172 224 Just Power Run 101 102 109 KPH 101 102 109 204 226 Kw 24 103 226 landscape 223 Larger Font Print Size 124 larger font Graph 224 Lash 47 leading edge 227 Legend Graph 27 112 117 134 168 224 Length 170 215 Library 8 11 12 18 44 111 127 128 129 131 132 133 161 207 209 210 Load Settings for Std Tq HP G
43. 4 25 Graph Checking for Data Quality Click on Add Test to add a tesi Engine RPM or comparison w DataMite Analyzer 2 0 YAM 1000 CFG Back File Format View GraphType AddTest HistoryLog Single Test Help fa Bee GG eee Engine RPM Dyno RPM vs Time yam 1000 all Calcd gear ratio Engine RPM Clutch converter slip Dyno RPM x10 Other Graph Specs Time or RPM Graph M M l Notes i Data Selected to Graph 4 types max i i Engine RPM i f a mn Dea Gisele One minor noise spike in Engine RPM will not reduce he data quality significantly If this spike had been in Dyno RPM the data quality would Make Graph Help Cancel Print 7 NOT be good i 22 5 25 0 Time sec Now add the test you want to compare this test to by clicking on Add Test in the Graph Screen See Figure 4 25 You will obtain a screen similar to Figure 4 23 on the previous page Select the YAM 975 CFG test which had a 9 3 4 inch exhaust flex You should now obtain a screen similar to that shown in Figure 4 26 The YAM 975 has nothing that looks like a noise spike so its data quality looks very good To illustrate some features of the graph screen lets say you wanted to compare these 2 conditions for acceleration rates In order to do this easily you would want to start the acceleration at the same RPM at the same time The DataMite Analyzer s time aligning feature lets you do this relatively easily F
44. 47 Valve Diameter 46 47 Valve Lash 47 Vehicle 1 31 37 38 54 90 101 168 186 225 Vibration 95 143 154 192 201 202 Warn if Run Type Not Dyno Run 26 Water Brake 25 172 Water Temperature 34 Weather 16 31 32 33 53 61 62 152 185 190 205 207 Weather Station 32 33 53 61 152 185 Weight 19 66 212 213 215 Wet Bulb Temp 84 85 What to Report 101 102 109 When Getting New Data from DataMite 25 Width 66 Windows 1 3 1 3 18 19 27 48 113 128 129 130 200 207 208 209 210 223 Windows Printer Setup 18 19 48 113 WOT 38 39 60 174 175 177 178 225 228 WOT Switch 60 175 178 225
45. 6 Press lt F2 gt 4 Open throttle at button to sto 1 Power up 2 Start 3 Stabalize throttle wide end of recording P Black Box Il Engine engine at RPM stento start test Click on Start warm up where clutch is i Pa P Sed ais Dyno Run at top locked up Press scree left of main lt F1 gt to start S Engine decelerates coasts down screen of recording data program Watch dyno test on Engine Dyno run Current Readings RPM screen Engine starts lt goes from accelerating here to here 150 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 9 Current Readings Screen While Running Dyno Test w Current Readings Close back Options Trace Recorder DataMite Commands Help ot gH ERRPM erg ao Une Start Dyno wheel RTS 231 Head Temp 1 1500 2345678910 Install Optical Isolator for this screen to avoid possible computer damage Current Sensor Readings 1 EngRPM 1 5 n a 4976 Cylinder 2 Stroke ay yno wheelAipm 6 E Temp1 Click here or press lt F1 gt to start recording Click here again or press lt F2 gt to stop recording After you Stop Recording you will automatically be taken back to the New Test screen 300 Exhaust Thermocouples 1229 23 Baro Pres 1 Humidity e EE g Note Some dyno operators have reported damaging engines by keeping them attached to the inertia wheel and let
46. Barometer Hg Air Temperature deg F Dew Point deg F Elevation feet Density Altitude ft Ny Density Altitude ft Recorded by Weather Station l Correction Factor Correct To std Race Dyno 29 92 60 dec Corect for Eng Inertia Effects No Help PeR on noen arrow to zeleci me type of test you t These specs delemie what type of corrections are made to the Tq HP data Weather conditions are used to correct torque and HP to standard conditions Density altitudes are calculated from other readings and are for information only Elevation feet Density Altitude ft Dry Density Altitude ft Test Vehicle Summary Description Fit gt Drive Tire Radius Radius 10 5 10 5 c Save Trans Gear Ratio 3 cte Open Final Drive Ratio 441 Cic Meas Absorber Dyno Test Specs Start Low RPM release to high RPh Start High RPM pull down to low RPM f me Start Low APM release to high RPM Click on dd Use All Recorded Data as Test program what to look for finding the beginning and end of your runs and is there Max RPM 8000 br running your dyno tests Your choice hare wil tell the Start at high RPM and then load the engine to pull it down sm and then unload the dyno to let the engine accelerate smoothly to a high AA For absorber dynos this the power run If you choose 3 you must be ver
47. Corr Factor 1 012 5 97 cid 2 Cycle 1 Cylinders iyam 1000 CFG Run 1 Ob asterisk Above this row is the Obs Tq data Below this row starts the Obs HP followed below it the Corr Tq and Corr HP 170 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Table 4 1 Average Performance for Exhaust Flex Lengths Flex Length Obs Tq _ Obs HP YAM 1000_ 10 00 13 56 YAM 975 13 82 13 99 FYAM 925 925 669 14 14 6 97 114 32 YAM 900_ 9 00 678 113 35 6 66 1370 Best Table 4 1 shows the average Corrected and Observed Torque and HP for the 5 different exhaust flex lengths The Corrected results agree well with the observed results indicating the data quality looks good and the correction factors appear correct The Table shows more conclusively what the graph tended to show The 9 50 flex was the best on average over the 8000 to 14000 RPM range Conclusions e Graphs allow you to compare one dyno run to another to check the effect of modifications e Graphs can compare runs on a time basis or an RPM basis e Various graphing features like Zooming Filtering Time Aligning and the Cursor let you manipulate the graphs in various ways to obtain different comparisons e Reports allow a convenient way to compare tests by obtaining averages over a particular RPM range and then comparing these average numbers e Reports comparing multiple runs make comparing averages very quick 17
48. Folder My Tests and enter some name so this test won t Test under a different Folder b fused with Id arrow button and select one t aes TE gt A ae g Up rSasayno Add New Folder and you will Her name to add to the list of Exit Program Ctra Choose Black Box Internal as the type of weather station w Data Mite Specs Back File Current Readings Weather Station Cal Troubleshoot Help Weather Station Pickina the correct Com Port is critical and is discussed in this section Channel Settings Set Sampling Rate to 50 unless you encounter problems recording data B Channel sed Data Name Sensor and Calibration 2 tJ Engine RPM EngRPM 1 Cylinder 2 Stroke Dyno wheel Dyno Wheel RPM 1 Magnet Exh 1 Std Thermocouple Exh 1 Head Temp 1 Std Thermocouple Head Temp 1 Analog 3 Std 0 5 Volts Analog 4 100 PSI MSI600 Sensor Analog 5 Analog 6 Analog 7 Analog 8 Std Thermocouple Misc Analog 9 Std Thermocouple Misc Baro Pres Std Baro Pres Calibration Humidity Std Humidity Calibration Black Box Il Comi vy ing Rate samples sec 50 Click here in the Sensor and Calibration column to set the appropriate calibration for all sensors See Figure 4 5 By choosing the Black Box Internal Weather Station these 3 weather sensors are automatically turned on Their calibrations can not be set and are automatically known by the program You can click on Weather Station Cal at the top of this screen Help to make
49. HP Loss dyno p 51 Dyno Type Engine with clutch x Total Gear Ratio Ciel w Dyno Specs Back File Torque Measurement Est Required Inertia Current Readings Help Inertia Dyno Specs Outside Dia Width len Weight Ibs Material Inertia Main Wheel Other Specs Help Dyno Type Engine with chich i Select parts with different thickness in main wheelte chassis dyno Total Gear Ratio Overview of Individual Inertia Wheel Dyno Components Basic Version Enter the specs for all components in your inertia dyno system here The inertia of each component is determined and hese numbers based on coastdown tests determine rictional losses in the dyno system for more accurate orque and HP numbers Total Dyno inertia from adding up inertia of all components This sketch shows the relative size of the various inertia dyno components so you can check for mistakes Gear ratio between dyno and engine is critical for Clutch Slip calculations Inertia Dyno specs for Basic version much simplified otal Inertia based on the 1 heel is usually accurate ithin 98 Basic version still requires Gear Ratio for accurate Clutch Slip calculation For an Inertia Dyno Basic version simply enter the outside diameter and width of the inertia wheel Then select the material Steel or Aluminum and the Wheel Wt and Inertia of the system is calculated For Material you can also select Use Wt
50. III USB and DataMite Mini USB you must be on this screen to record data for a test This screen is also very useful for troubleshooting the DataMite s channels and sensors during initial setup For example you could wiggle connections and watch to see if a pressure reading jumps around indicating faulty wiring Click on the Options menu item to open a menu where you can select which channels to view on the gauges and the range of the gauges For example if you want to see Dyno Wheel RPM for a small inertia dyno you would probably pick a range like 0 2400 RPM However if you were to watch Engine RPM you would probably pick a range like 0 12000 RPM because Engine RPM would go much higher than 2400 RPM See Figure 2 32 IMPORTANT It is strongly recommended that you install Performance Trends Optical Isolation box if you use this screen while running an engine This will prevent voltage spikes from the engine passing back through the DataMite or Black Box Il to your computer possibly damaging the computer Click on Options to either select to e Change the update rate of this screen e Change what is displayed on the circular gauges e Change what is displayed on the Bar Gauge Settings e Change the scale of the Exhaust Temp Scale e Change the Color Warning Settings e Change the Analog Filtering smoothing Figure 2 31 Change Update Rate Change Screen Update Rate Ea Change the update rate of this screen Enter the new upda
51. Il Click here to cancel out of the test you just ran See Spe an A Click here to keep the data you recorded Dyno See Specs See Specs Test Conds See Specs hor this box checked if you want to copy the current test s Test Conditions to the New est Engine bpy the current test s Engine Specs to the New Test Comments Keep this box checked to use comments below for the New Test Note that you can erase and change these comments here EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST PIPE Once a New Test is started you can easily erase or modify any of the specs listed above Any specs not selected to Keep will be mostly blank when you start the New Test Readings screen Here you can watch the gauges and readings as you make your dyno run The Current Readings screen is discussed in Section 2 7 Click on Close back where you are done with the dyno run After clicking on Close back you will go to the New Test Screen where you can decide to actually save the data you recorded or Cancel Out of it If you save the test you can pick things like a new File Name new Folder whether to carry over comments or settings from the previous test etc C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 21 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 2 Preferences Figure 2 8 Preferences Menu Click on the Preferences item in the menu
52. Main Wheels almost nothing to the ystem s total inertia Inside Dia Outside Dia Width flen Weight Ibs Material Inertia Total because they are rather Main Wheel fi light in weight and small in i ter Main Wheel sectiop Inertia Dyno Specs Calc Gear Ratio x Calc Gear Ratio 4 00 I Include Misc Component 4 T Include Misc Component B T Include Misc Component C I Include Misc Component D Inputs Type Chain Drive Only M Teeth Engine Gear L__ Teeth Dyno Gear H Total Inertia 72 24 AET Other Specs Hep Teeth Dyno Sprocket B2 The outside diameter of a brake disk or Note o For motorcycles with a Primary gear drive Time sec o 80N E drum in inches p 51 between the engine and transmission Select HP Loss z 7 Primary Ratio amp Chain Drive as the Type if you 23 know the Primary Ratio Select Primary Gears amp p z Chain Drive if you know the Teeth on the Dyno Type Engine gear reducdXg Pana k es a oa Total Gear Ratio m Al l j Help Cancel Print Total system inertia Enter results from a coastdown test to estimate the frictional losses in the dyno and drive system Pro version only Click on the Clc button to bring up menu at right or calculating the total chain ratio Figure 4 6 shows how these specs would look after you enter the specs described above You can also click on the Cle button by th
53. Master Dyno specs Do this only if all the current settings in this screen DO match the Required Inertia 362 27 current specs of the Dyno right now and for the near future Remember that the Master Dyno specs will be used for the next test Current Inertia 63 89 you download from the Dyno Accel Time for Current Inertia Max Inertia Wheel RPM Print Testing Estimates Average Engine Torque Click on File then Print to print this screen Starting Engine RPM Finish Engine RPM Desired Accel Time sec Total Gear Reduction Torque Measurement Note Click on Torque Measurement to select the basic type of dyno you Use this screen to estimate inertia wheel or gear are using ratio requirements for testing a particular engine e Inertia and Acceleration which has been discussed in the torque level previous pages e Torque Arm discussed in Section 2 6 1 on page 72 and z calibrated in Appendix 5 Cancel Print e Hydraulic Pump Pressure discussed in Section 2 6 2 on page 73 69 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Because the method of Torque Measurement is at the heart of any dynamometer DO NOT change this spec unless you are setting up a completely different type of dyno See Sections 2 6 1 and 2 6 2 for non Inertia types of dynos Est Required Inertia Click on Est Required Inertia to be presented with a screen shown
54. Options Print Setup l The Properties sometimes called Advanced or ere z Options button displays Name HP LaserJet IlIP a la screen for selecting Status Ready various printing and color options Try changing Ps Accel these settings to correct Where LPT1 certain print problems Comment Printer Paper Orientation Size Letter 81 2 11 in Portrait Source Upper tray Landscape Cancel 114 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 19 Adding Information to a Graph Printout Most of these options have no effect on the graph on the screen only the graph that is printed Click on these s to change which Data Set s test file s comments and title you are working with w Printed Graph Comments Click here to change the Test Comments comments which lappear on the Main Screen Changes to Data Set 1 s comments the current test are permanent Changes to other 2 Graph Data Sets comments available for each Data Set O2 Graph Title Test Comment Test Summary Yamaha Pipe test Test Summaries are created by the program and include valve and port sizes test times and dates etc 1277798 Lo 1 1 8 Hi 378 G2 9 25 flex Data Set s comments are temporary They can not be changed by the ENERTIA DYNO user his one comment is printed directly under the graph he Titles to Use option
55. Pres Vaccum Exh 2 Exh 4 Exh 6 Exh 8 Channel Used DataName Sensor and Calibration linder 4 Stroke na 40 800 Hz 10 17 P AFR Cstm 0 800 Not Being Used Not Being Used Cstm 5 4 5 5v P Cstm 5 4 5 5v D 50 Fuel Pressure Cstm 0 994 0 10v 0 30 Yaccum Std Thermocouple Exh 2 30 Std Thermocouple Exh 4 30 Std Thermocouple Exh 6 30 Std Thermocouple Exh 8 30 l Tip Click on most anything in the Channel 4 change it For Used you will toggle No For Data Name and Sensor and will be presented with new screens to q current settings Click on File then Save as Master DataMite Specs to save these settings 17 JAnalog 12 19 Analog 14 20 Analog 15 21 Analog 16 Analog 17 Analog 18 Analog 19 25 Analog 20 Exh 7 Water Tmp Oil Tmp Eng Intake Air Exh 5 Channel 22 Channel 23 Channel 24 Power Volts Channel 26 Channel 27 Channel 28 Channel 29 Std Thermocouple Exh 7 30 Std Thermocouple Mis 30 Std Thermocouple Msc 30 Std Thermocouple Eng Intake Air 30 Std Thermocouple Exh 5 Box Power Yolts OWOT Switch Digital Input 2 Digital Input 3 Digital Input 4 Tip Click on most anything in the Channel Settings grid to change it For Used you will toggle between Yes and No For Data Name and Sensor and Calibration you will be presented with new screens to change the current settings
56. Tes If a different test would more closely match this new test fts reducing the number of changes you will have to make lv Tes in specs click on Cancel at the top Then click on File and Open at the Main Screen to select a better test on which to base this New Test je Once a New Test is started you can easily erase or modify any of the specs listed above Any specs not selected to Keep will be mostly blank when you start the New Test Don t show this again At the New Test screen you are asked if you want to save this data set Answer Yes to save the data with the current settings in the New Test screen to the left Answer No to go to the New Test screen and change these settings before saving the data Do you want to save this data set Answer Yes to save the recorded data using all the settings you see on the Starting a New Test screen behind this one Answer No if you want to change something on the Starting a New Test screen Then you can click on the Save Data command at the upper left comer to save this data with your changes You could also then click on Cancel at the top of the Starting a New Test screen to not save this data at all 151 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples whatever the Current Test is The New Test screen appears as in Figure 4 11 There are 5 critical specs at the
57. The input values or calculated values in any Sa eerie a have Unik ws ith Type Boe fa lt 2 ca ua ee a unless ee oad the a al E Cylinda Shere B SESE RSS Calculated ue into the aa menu If Rod Length ER tid Piston Dome CCs you already know a spec in the form 301 59cid 4943 1 ces Chmbr 83 5 ces ites NTI required by the program then you have no BEK Seer Gasket Bore Dia in need to use the calculation menu For Deck Haight Clearance in Piston amp Rods example if you know the Compression E Ratio is 10 3 you have no need to use a Crank Wt amp Descr 35 __ ibs pioto Toe TE En 7 ti the exist t calculation menu to calculate Compression Flywheel Wt amp Dia sibs f Jin Block grees of ahaa iA and Shek a this Ratio based on Gasket Thickness Piston Ignition ee chanos thase spec before usia this Dome CCs etc Distributor Stock TFL CS Enter a negative Dome CCs for a Piston Dish 2 pl pipes Is Enter a negative Deck Height Clearance if the Spark Plugs piston goes above the deck at TDC Gap 044 Timing ese Use Calc Value Help Cancel Print Help Other Calculation Menus are discussed in Section 2 3 Test Conditions for Vehicle Description Specs for chassis dynos Check Appendix 7 page 223 New Features in Version 3 7 for new features like being able to use Metric units 2 8 1 Calc Compression Ratio Is the Compression Ratio calculated from the following specs
58. Wd I xog J929 pasn jou am ajding IaM SOM def oo AyesidAl sosues Wdy aym anb1o 104 ajqeo jnoyeaiq si UO 10 23uu09 jppiwu p jeuueyg Bojeuy asp zZ nb 0 104 JOSUaS BINSSAd e a o ul jamod oq lt saydepe uod woo GSN 0340 pod jenas JO WOOD Jeindwoos of suid ajew yw xog yoe g UO J0 O UUOD woyoq pepuawwode 0 JO UUd ajqed jenas Joyejos jeondo jeuondo Buni ouAg Jequosay jeoidA xog yoejg 195 Appendices Dyno DataMite Analyzer C Performance Trends Inc 2008 Cc Q p amp is 2 3 m u O z 2 ra o gt O 9 N lt x 0 J 9 LL ch pavanwod Jou Ss apeg ayp UaYAs spndu ayyyeyeg a uo saheyoa Bulsnposd JOU a8 spsuas yo ayp HU ansua IIMs SIU dys Jawod auo Aq dn pamuod aq siosuas palawod Ayeusayxa je PUB apeg ay Jeu PapuawWWodad SI y XBW dwy joge sanba pue dawod 9TA OLL OW snd Ajddns arog apow Apead Aqpueys ul s appeeg saapu Hulysey uopng pay Aq H57 papsooa Bure Byep apeaipu UO syf yog epp Supoa sdoys uopng pay ay ejep Bulpicoay syeys uona AJIB A ayp ANOU yig SuOoUNY uong ay ypu DA JOU op jaued joauoa ay uo Bureyaj ayp arou jo Sy ayesado Syyeyeg ay aAey o pue uo awa 45i parod S aprep a4 BABY opu PaBHnjd a aq nu syl ILON aued jouoo uopng ysnd aged uojsuape ayp ypa agea jenas jeUIGLO Siy apnjour ysnw nos E giqes
59. XP then Device Manager Look for Ports COM amp LPT and see which ports are being used and which are set to the USB adapter Check that the ports are working properly You may want to turn off the Preference of having the DataMite program Auto Check Com Ports and then specify which COM ports are available one at a time in the DataMite settings e Be sure you are using a Null Modem cable and if you are using any extension leads that you include the null modem cable and add the extension leads Bottom line is pin 2 and pin 3 swap from the Black Box and DataMite end to the computer end Check that this is happening with your total cable with an Ohm meter Pin 2 should be connected to pin 3 on the other end and vice versa If at this time you have not corrected the problem call Performance Trends with the results of your checks above For the DataMite II USB and DataMite Mini USB check the Quick Start Guide which came with your system for info on getting the USB communications working Figure A3 2 DataMite Troubleshooting Options in Program Check Com Ports Screen with eda I Eel Me Paper Clip You must remove Bend a paper clip into a U and insert the Click hare for Optical Isolator for this test ends into ocket 2 and 3 as shown below troubleshooting options Select which Com Port to Check Boot Message try then click very useful for checking on Test Com communications Port w Data Mite Specs Back File DataMi
60. a EA Analog Sensor Specs Analog Sensor Specs ue ft lbs Type Dyno Torque ft Ibs x Data Name Analog Sensor Specs Analog Sensor Specs 1st Value engineering units po 1st Value engineering units fo 1st Value volts Read tz 2nd Value engineering units e 2nd Value volts Read C Signal Based On 0 5 Volts v Correction Read A Choose Analog Converter as Sensor and Dyno Tq as Sensor Type Analog Sensor Specs Type Dyno Torque ft lbs he Data Name Analog Sensor Specs 1st Value engineering units po Ist Value volts Read 524 2nd Value engineering units 2nd Value volts Read 4 356 Signal Based On 0 5 Volts gt Correction Read o Data Name Set to 0 5 volts for most all analog sensors fill in the Calibration from factory th sensor The pr an adjustment after the calibration is complete For example after you have entered the calibration for a shock travel sensor you may want to adjust this to read 0 when the car is at static ride height On is complete For example after efentered the calibration for a shock Note Pick the type of sensor and fill in the Calibration Specs as necessary or fill in from factory calibration table provided with sensor The Correction factor is meant for an adjustment after the calibration is complete For example after you h
61. and the current cylinder volume based on the current Bore and Stroke in the Engine menu See page 81 for general notes on Calculation Menus and for an example of their use 80 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 36 Calc Gear Ratio Calc Gear Ratio Ea The equation for Compression Ratio depends on the cylinder displacement swept volume This displacement is based on the current Bore and Stroke in the Engine menu and is displayed in the Notes section at the bottom of this menu Make sure these specs match the engine for which you are calculating Compression Ratio before using this menu Chamber Specs Chamber CCs in Head Is the combustion chamber volume in the cylinder head measured in cubic centimeters This is the value obtained if the heads are cc d If you know the entire clearance volume of the cylinder but do not know Piston Dome CCs Gasket Thickness or Deck Height Clearance enter that volume here as Chamber CCs in Head Then enter 0 for Calc Gear Ratio Inputs Type Chain Drive Only Teeth Engine Gear Teeth Dyno Gear Teeth Engine Sprocket Teeth Dyno Sprocket l Note For motorcycles with a Primary gear drive between the engine and transmission Select Primary Ratio amp Chain Drive as the Type if you know the Primary Ratio Select Primary Gears amp Chain Drive if you know the Teeth on the Prima
62. average HP over the RPM range you specify and the difference between the current run and the previous run if you ve selected that Preference also See Figure A7 6 This is available in the Pro version only We ve added Metric options for entire program or just for engine measurements See Figure A7 7 This is available in the Pro version only We ve added DIN power correction factor as an option This is available in the Pro version only We ve added Preference to allow the program to correct for engine inertia when doing Absorber dyno tests e You must turn on this Preference under the Calculations cont tab and then also request it in the Test Options screen e Background When an engine accelerates during a power run some of its power goes into accelerating the engine s and dyno s rotating inertia The result is power measured at the dyno which is Jess than the engine would produce during a steady state power run Conversely if you do a decelerating test you will see more power than what a steady state power run would show If you turn On this Preference and enter accurate information about the engine in the Engine Specs screen the program will try to correct for this effect and report torque and HP numbers more like what a steady state power run would produce See Correct for Eng Inertia Effects on page 35 and Figure A7 6 e IMPORTANT We do not turn on this feature automatically because it can produce confusion and non repea
63. but some of the program s features may not work correctly In this case displaying this channel in the Current Readings screen s Exhaust Temp bar graph and analyzing average exhaust temperatures and exhaust temperature spread would not include this channel Therefore try to pick a Calibration which is most appropriate for that particular channel and sensor The Data Name for the channel can be most anything you want as this is not used by the program for anything critical just to label graphs and reports Menu Commands Back Simply closes this menu and returns you to the Main Screen If you made changes to these specs you will be asked if you want to keep them for the current test If you answer Yes the results of the current test may be changed based on these changes This is good if you are correcting a mistake If you answer Yes you will also be asked if these changes should be saved to the Master DataMite specs Only answer Yes if all the current settings in this screen match the current settings sensors and calibrations of the DataMite right now and for the near future Remember that the Master DataMite specs will be used for the next test you download from the DataMite As mentioned earlier about the DataMite II if you save these settings as the Master DataMite you must also download these changes to the DataMite II box so it also has the new configuration File Open Master DataMite Specs Click on File then Open Master Dat
64. calibrations which allow the user to shift an analog channel up or down slightly This replaces the T C Corr that was available only for thermocouple channels previously This feature is especially 227 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS SSS SSS SSS SSS SSS SS SS SS U UMH useful for the dyno torque sensor where you can just zero out the reading with the engine not running See Figure A7 11 This is available in the Pro version only We ve added several standard calibration types to pick from including e Pressure sensors 0 5 volt sensors for various ranges from 25 psi to 5000 psi Orifice air meters A F sensors and gauges Thermocouple Types for various external amplifier boxes or internal thermocouple channels Various switch inputs for Recording to start and stop the recording session or WOT switches to mark when the engine was at full throttle to know where to use data for power curves We ve added a Preference Engine RPM is Calculated RPM so now you can display the Calculated Engine RPM from dyno RPM on the Current Readings screen s gauges This is available in the Pro version only We ve added a Preference to allow turning On Off the Resizing of the Current Readings screen Users can try either to see which gives best results on their computer Program now allows the Current Readings screen to be Maximized to fill the entire screen This is available in the Pro version only We
65. can select to show only tests which it certain criteria See Section 3 6 Click here to bring up standard Windows File Open screen to Click here to close the Test Library with No let you open a file in most any changes without opening a test older directory and disk drive Click here to open the chosen Test Select one of these options to list the test files alphabetically either by test file name or by engine This option can save you time looking for a particular test file Pro Version Only 127 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Open a Test File To open a test file saved in the Test Library click on File at the upper left corner of the Main Screen then on the Open from all saved tests In the Pro version you have an additional option of Open from History Log which will be discussed in Section 3 7 You will obtain the window shown on the previous page Single click on one of the tests in the list or click and drag the slide button on the right side of the list to display more tests Once you single click on a test it is now the Chosen Test File and a preview of the test is given in the Preview section If the file you chose was not a valid Dyno DataMite Analyzer file either Windows V3 2 or the older v1 x for DOS the program will tell you and you can not choose it Tip Once you click on a test and get a preview use the up and down arrow keys to go through the l
66. choose to organize their tests Your entry here of most any text up to 40 characters is what the program will use to call the different folders where test files are stored Tests Kept in History Log Pro version only Pick the number of tests which you want the History Log to hold from 25 to 100 Calculations Tab Torque HP decimals Pick the number of decimal places you want displayed for Torque and HP on graphs and reports For small engines like Briggs choose 2 to obtain more detail like 7 45 HP For larger engines choose or 0 for numbers like 122 3 HP or 591 HP respectively Torque HP Output Pick the type of units for reporting torque and power in either Ft Lbs NM Newton Meters metric or Oz In very small engines and Horsepower and Kw kilowatts metric Allow Correction in Calibration of Selected Recorded Channels Select Yes to allow for a Correction factor input to be enabled in the Sensor and Calibration screens for the DataMite Channels A Correction factor allows for minor readjustments to a calibration without changing the actual calibration This is used to re zero sensors or to zero out dyno torque with no load on the dyno See Appendix 5 Calibrating an Analog Sensor for more details Chassis Dyno Calculated Torque is Select Torque at Engine Flywheel and you will obtain torque values very close to those given on an engine dyno but less due to driveline losses Select Torque at Dyno Rollers and you
67. engine magnetos like on a Briggs amp Stratton engine are OK DataMite Control panel with 2 push buttons RPM harness with standard wheel RPM sensors Magnets for wheel RPM sensors you typically will only use 1 to avoid uneven spacing issues Serial cable for connecting DataMite to your computer s COM port 110 VAC or 220 VAC for overseas power supply Configuration diagram identifying which of the 16 analog channels are activated as thermocouples or 0 5 or 0 10 volt inputs Common DataMite Options 189 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS l eS es e Inductive Pickup and wiring harness for measuring engine RPM on single cylinder Briggs or other cart engines e Optical isolation connector for the COM port This is good protection for your computer against high voltage spikes from the engine getting back through the DataMite to your computer s COM port This can happen any time you are running the engine and have the serial cable attached to the COM port This condition is necessary if you want to watch the live display in the Current Readings screen Thermocouples to measure temperatures analog converter required for Black Box II Pressure sensors A F Sensors Fuel Flow sensors Weather station for correction factors or air density measurements For the Black Box II these sensors can be internal built in In addition you may need e Epoxy or some other method of mounting magnets to
68. fataMite v3 7 Performance Trends 350 HOLLEY HEAD KIT 27 CFG DAE File Edit Graph Report TestConds Engine DataMite Dyno Preferences Help Start Dyno Run Test amp Engine Conditions Te 4 040 Bore 3 24 pm 12 26 2006 350 FOUND THAT 42 TOTAL TIMMING WAS BEST JETS PR 73SEC 81 MOVE TIMING 3 DEG TO 46 3 480 Stroke PkTq 426 22 4400 55 88 cid 4 Cycle PKHP 412 20 5800 11 181 Corr Factor Operator Wade Munnaway Click here to tem po rari ly ee Seay een Test Data cor to 29 92 60 deg F dry air hide or show the __Hide Previous Rur comparison run Point RPM Cor Tq Cor HP Cor Tq Corr HI previous previous 450 T 411 24 236 84 361 97 206 72 412 35 249 81 359 24 217 46 414 35 266 56 363 42 233 82 416 68 283 71 367 84 250 51 418 85 301 11 370 05 265 87 422 76 319 90 372 06 281 57 425 38 338 07 373 17 Pk 296 50 426 22 Pk 354 89 371 61 309 43 424 73 369 62 369 82 321 93 422 11 383 41 368 90 335 05 417 62 395 34 365 71 346 04 410 91 404 73 356 35 350 64 Pk 400 53 409 63 342 37 350 17 388 64 41218 375 31 412 20 Pk Troubleshoot Corr HP Click on this Troubleshoot button to graph critical data vs time to help understand how the raw data looks 1 4 Mile Performance Est Comparison torq ue and RPM 3500 6000 3500 6000 Improvement ET MPH 12125 111 89 13522 10008 1397 1153 yes HP shown here and Avg HP 342 42 243 55 98 87 also included on graph
69. for Writing ASCII Files Pro Version Only Click on File at top of Report Options for ASCII File Options screen shown here Save as ASCII File ecto tc You can now include the Test Comments in the ASCII File Options ASCII file Comma Separated IX Include Text You can now include the Test Summary Info in Convert to Cokimns the ASCII file X Include Zomments X Include Test Summary nfo 5 Browse button to find file names for replacing or to find various locations folders on your computer for saving the file File Name i i za C AVBSS8 projects6 dtm 1 txt Save File Tip File name now includes full path to most any Enter a valid file name and path to save ASCII location file Refer to page 98 and 102 in User s Manual for definitions of Options Figure A 7 12 Larger Graph Legend and Graphing up to 64 Data Types Pro Version Only DataMite Analyzer v3 7 350 HOLLEY HEAD KIT 26 CFG R Back File EZES view GraphType AddTest HistoryLog Single Test Help EE seeren e fefe EC E Data To Graph graph type Which Tests to Graph history log PS AIR SENSOR OIL PR psi OIL TEMP WATER TEMP vs RPM OIL PR psi Data Multipliers OIL TEMP 7 p WATER TEMP ag pe Click on the more buttons Exh 1 DegF Edit Titles Legend Edit Printed Comments and Data Output 2 top and bottom to scroll Corr Tq anes th through all 64 Legend Labels Legend graph line labels Classic Labels smaller LBA E i i
70. from Accel Water Temperature where each run starts and stops l Track Weather Even ae Method of Reading Weather Datg you may have recorded 45 Uncorr Baro with Deh its l Correction FActor seconds orate Std Race Dyno 29 92 60 dec for a dyno run Obs Barometer Hg E j Correct for Eng Inertia Effects yes v the actual run Air Temperature deg F which the Dew Point deg F ew Point deg DataMite Obser ed barometer reading in inches of mercury Analyzer found Elevation feet as read directly off a barometer instrument not may start 13 corrected to sea level for elevation p51 seconds into the run and may end at 23 seconds a 10 second run This is explained in Section 3 5 Data Libraries Click on the Test Conditions command to obtain a menu as shown in Figure 1 6 These specs are used for calculating certain outputs like corrected torque and HP etc and they are useful descriptions to remind you of what this test run was in the future Many of the input specifications you see in the various menus may not be familiar to you For a brief definition of the inputs simply click on the specification name The definition will appear in the Help frame with a page in this manual for more info Some specs have Clc buttons One example is Compression Ratio in the Pro version s Engine Specs menu Clc stands for calculate For example if you
71. from Pro version ONen from History Log es ents History Log displays a Ctrl s here to change to a different ch ronological log of test Salis Ctrl I i iles you have recently Apen KAn Floppy CD Drive A Drive x SaN to NE Drive amp Drivel I orked alee 3 z new opened made Search RoNind Runs jot this M cup feta graphs or reports of P is MaG creen r i etc Section 3 8 ther Scree Printer Setup Unlock RDK Options Saving options to Save a Transfer PrSpgreeiather Computer eS test file are discussed in Ext Progam OV Chex Section 3 5 UUU 3 02 FNY b 3200 976 NS 3400 9 62 ED 300 911 6 20 00 aat E34 Opening options to open 4000 8 22 6 22 j i a previously saved test 4200 7 78 6 18 i 1 i i i i 4400 7 57 6 31 4600 7 44 6 48 4800 7 21 6 55 5000 6 96 6 59 Pk 5200 6 63 653 5 h j j j j Print options let you print the n 2000 2500 3o00 soo ooo 4500 sooo 500 ontents of this Main Screen which is a good summary of this current est See Section 3 4 1 i C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 100 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 2 Report Options Menu 3 1 Reports Ee l Basic Report Specs Type Pick Individual Items x Click on the Report menu command at the Main Screen to be presented with the Report ape i ALPS Hopi RPM UE Engine Accel RPM sec
72. in Figure 2 22 This screen will calculate how much dyno inertia is needed to provide a certain acceleration test time for various amounts of engine torque Required Inertia Is the dynamometer Inertia needed to provide the acceleration rate indicated by the Testing Estimates specs Current Inertia Is the total dynamometer Inertia of the current dyno specs This is provided for comparison to the Required Inertia and to show the Inertia number used to estimate the Accel Time for Current Inertia below Accel Time for Current Inertia Is the time required for the Current Inertia to accelerate from the Starting RPM to the Finish Engine RPM for the given Average Engine Torque and other Testing Estimates specs Max Inertia Wheel RPM Is the Inertia Wheel RPM for the Finish Engine RPM and Total Gear Reduction entered This menu does no checks on the safety or design of an inertia wheel You must design an inertia wheel carefully for it to be safe at some particular operating RPM Testing Estimates Average Engine Torque Is your estimate of the average engine torque this engine will produce over the RPM range specified in ft lbs foot pounds Starting Engine RPM Is the low engine RPM at the start of the test at which you go full throttle Finish Engine RPM Is the high engine RPM at the end of the test at which you close the throttle to stop the test 70 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Defini
73. in Figure 3 35 Figure 3 35 Filter Files Menu Click on the down arrow button to pick the spec or comment to w Filter Files check for a certain condition Has this relationship Click on the down arrow button to pick the condition to look for These change depending on the spec or comment you have chosen Type in or pick from a list for M List Files If This comment or spec Test Comments some specs the condition to look for The program treats fas this relationship UPPER and l List Files If And Or This comment or spec TrackConds Dry Density Altitude lower case letters the same bowtie BOWTIE Include this condition also To what entered here NJ And 4000 Has this relationshi ls Between w TrackConds Dry Density Altitude 3 BowTie TrackConds Type of Test TrackConds Track Length ft TrackConds Finish MPH TrackConds E T sec TrackConds 60 ft sec TrackConds Wind Speed MPH _ L Include this condition a To what entered here Check here to include a 2nd condition This Has this relationship TrackConds Wind Direction Show only files fitting these limits urn Off Filtering show all files 4 ancel Help Click on this button to return to the File Open menu which will now show all test files enables specs in Print list of all files fitting these limits this section Search All H amp H Folders hewit Se
74. is happening too fast Generally you want a test to take at least 6 seconds for an acceleration To slow down the acceleration select a numerically lower Dyno Gear Ratio for example switch from a 6 00 ratio to 4 50 ratio e Erratic engine RPM signal especially if HP looks smooth and torque is jumpy e See if the trend repeats on a 2nd test If the hills and valleys keep occurring at the same RPM the jumps may be real e Try a higher filtering level Most torque and HP curves need Filtering set to at least Light some 204 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Try graphing the torque and HP vs Time in seconds If it looks much more smooth then contact Performance Trends about this unusual data file If torque and HP look too low or too high First check the other suggestions in this section RPM Data Good Calculated Data Bad Double check all your DataMite and Dyno Specs entries Check Sections 2 5 and 2 6 If Observed torque and HP look OK but Corrected looks wrong check the Weather Specs in the Test Conds menu The Corr Factor on the main screen is typically between 90 and 1 10 See Section 2 3 Your engine may not be typical for example a very low powered engine with a very heavy engine flywheel and or crankshaft Your dyno may have considerable frictional losses that you are not accounting for correctly See Coastdown Test in Example 4 1 Check the tips in Appendix for Accuracy and Repeat
75. per second or less Once the engine gets to the highest RPM to be tested the operator closes the throttle and the engine decelerates If your dyno does have a third party control system then let it control the dyno and engine or vehicle It s method of control will fall into one of these methods We do not recommend doing step tests where the engine is held at certain RPMs then allowed to go to the next RPM The DataMite software is most accurate for recording sweep test continually accelerating or decelerating dyno runs Figure 2 9d Absorber Dyno Test Specs Type Star Low RPM release to high RPh Max RPM Min RPM Help Start Low APM release to high RPM Click on dd Use All Recorded Data as Test br running your dyno tests Your choice here will tell the program what to look for finding the beginning and end of your runs and is therefore YER Y important 1 For either type of test the operator will start the data recording 5 seconds or more before the start of the test and stop the data recording 5 seconds or more after the test The program can then find the exact beginning and end itself to get the absolute widest RPM range of data It is these Absorber Dyno Test Specs which will tell the program which type of test you are running so in knows what to look for in the data Specifying this wrong will create very inaccurate results Figure 2 9d shows the 3 choices available The first 2 choices coincide
76. produced more than 700 HP In all these cases the filtering specs would allow you to find the test files First you must select the condition you want to look for by clicking on the down arrow button on the This comment or spec box Your choice of this spec will determine what the Has this relationship options are and what specs can be entered in the To what I enter here spec You can select up to 3 conditions to look for For the Operator Jack Customer Johnson Big Block Chevy example above you would need to search for 3 conditions For the Weber carb example you could just search for 1 condition You add conditions by checking the Include this condition also box This enables the other specs for each condition If more than 1 condition is being used for the search you must determine if you want the search to include tests which fit ANY of the conditions Or or must match ALL conditions And For example if you are looking for tests run by either Operator Jack or Operator Joe you would select Or If you want Tests which made more than 300 HP and were done since Jan 1999 the tests must match both conditions you would select And Figure 3 36 Print List of All Files Fitting These Limits The 3 command buttons will do the oo Folder ETIE MEH E following 2478d41 cfg caheely Bt2478d4 cfg caheely D JRDRGST3 CFG caheely 7 772 81 43 JRDRGST4 CFG caheely 7 772 81 43 Show Files Only Fittin
77. same guy When New Operator you go to look for tests run by Bobby in the future the Pro version s Enter a New Operator search Filter option will not show up the tests run by Bob or Robert New Operator To pick an existing operator name pick No for Enter a New Operator ee whether to pick an existing Operator then pick from the Operator list To enter a New Operator name pick piace rhyme Yes for Enter a New Operator then type in a New Operator name Operator to Yes A New Operator name is i p saved to the list of Operator Names if you click which will be added to the list of operator names on Use Operator button a the bottom if Enter a New Operator is set to Yes Test Comments Use Operator Help Cancel Print Test comments are for making most any notes about the test unusual observations customer requirements etc In the Pro version you can search the Comments for various words For example you could search for all the tests which had the word Holley or Johnson in the Test Comments Help 15 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions The help frame will describe what ever portion of the screen the mouse has passed over or clicked on 2 1 3 Summary Graph The summary graph shows Corrected Torque and HP graphed versus RPM for the current run of this particular test Figure 2 4 The increment of the RPMs and the level of Filtering smoothing can
78. shifting Graphs Many times you may want to realign graph with respect to another for example to line up the start of an acceleration etc The program allows you to shift advance or delay one test over another on the graph as shown in figure 3 24 Figure 3 24 Showing Options to Shift Data from 1 File Over Another File Example of Graph before Time Aligning Example of Graph after Time Aligning t DataMite Analyzer v2 0 YAM 925 CFG x t DataMite Analyzer v2 0 YAM 925 CFG Format View Graph Type padites History Log Single Test Help _ E Back File Format View Graph Type AddTest History Log Single Test Help J Ewa e eA eee 2 SER Ee ee AA Ae easa H Corr HP vs Time yam100 0003 all Corr Tq Corr HP vs Time yam100 0003 all i 7 Corr Tq R i j 1 Corr Tq 1 2 Corr HP Corr HP 1 2 i p yam 950 all 1 i A i i pyam 950 all ir TA Co Corr Ta Corr HP 1 Corr HP 0 15 0 17 5 20 0 Time sec DataMite Analyzer v2 0 YAM 925 CFG The test you are shifting Back File Format View GraphType AddTest HistoryLog Single Test Help is identified by printing the name and outline in bright pink To switch to a different file click on one of the graph data types for that file The number of seconds each test has been shifted is displayed here Click on View for other Shift options Click here to show the amount you have shifted mat View Graph Type AddTe
79. test results of the test file which you are working with on the Main Screen e Tests marked in the History Log These are the test results which you previously graphed started new opened etc which you have marked Yes to graph in the History Log see Section 3 7 e Add Test lets you pick any test from the Test Library to add to the top of the History Log and mark as a test you want to graph Since it is at the top of the History Log it should definitely be included in the next graph In the Pro version you can compare data from up to 6 tests as long as there is room for the Legends labels for each graph on the right side of the graph Usually this ends up being about 24 graph lines which could be 6 tests with 4 graph lines for example Obs Tq Obs HP Corr Tq and Corr HP for 6 different dyno tests of 6 different cams 112 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 16 History Log Pro version only See Section 3 7 for more details Click on the History Button or the History menu item to display the History Log Click on Single Test to graph only the Current Test w DataMite Analyzer 2 0 REEDOS_CFG x Bac File For f View Graph Type Ade est His tor og Sing e Test Help Ha EE CENEL EEEa Corr Tq Corr HP vs ae yam100 0003 1 Corr Tq aes P yam 950 1 Corr Ta Corr HP Choose a Graph option from the menu bar to close the History Log and graph the a Test History O
80. tests without it This is done by calculating the Dyno RPM from Engine RPM See Table 2 1 in Section 2 6 Dyno Specs Other possible problems for Frequency channels and problems for Analog channels e Check that you have the correct power coming from the connector as shown in Figure A3 1 e Be sure you have the channels set to Yes in the Used column in the DataMite specs screen e Be sure there is a valid Sensor and Calibration set for that channel For checking Analog channels switch the Sensor and Calibration to Std 0 5 volts and try again e Be sure you have saved your changes as the Master DataMite specs and that the program has sent this configuration to the DataMite II Only Some Data Recorded This would be situations where the DataMite II starts a run recording data then during the run it stops recording e Check if vibration is causing intermittent power to the DataMite or Black Box by better isolating the box from vibration for a checking test e For RPM channels check that the RPM may have gotten too high or too low See DataMite Not Reading Data Signals above e For the Black Box II if you are getting messages about the data looking corrupted then try reducing the sampling rate in the DataMite specs to 25 samples second 201 C Performance Trends Inc 2008 Data Recorded but Looks Bad Data Noisy or Jumpy Dyno DataMite Analyzer Appendices See Figures 2 46 and 2 47 on pages 96 and 97 for exam
81. the Cle button See Section 2 8 4 page 85 Relative humidity is only useful when you know the air temperature where the relative humidity is measured Since that temperature may be quite different than the air temperature going into the engine Dew Point described below is a better less confusing way to enter the airs moisture level 31 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Dew Point deg F The dew point in degrees F of the air at the dyno which describes the air s humidity level The Dew Point deg F must be less than the Air Temperature Dew Point can be calculated from either wet and dry bulb temperatures or from relative humidity and air temperature readings by clicking on the Clc button See Section 2 8 3 page 84 Dew Point is a less confusing way of describing the air s moisture level than relative humidity Relative humidity readings are only meaningful if the air temperature when the reading was made is also known However the air s dew point remains constant even when the air temperature changes For example 40 degree air with a 80 relative humidity has only a 10 relative humidity when the same air is heated to 100 degrees However the dew point remains at 36 degrees for both air temperatures Elevation Elevation ft The elevation of the dyno above sea level in feet This spec is only used if you are using a Corrected Barometer like from a TV or radio station weather repor
82. the dyno inertia wheel or shafts e Heavy metal strips to build brackets to mount the RPM sensors to monitor the magnets e Shrink tubing solder soldering iron wire terminals etc if you are going to shorten lengthen or change the wiring harness Important Performance Trends ships most all cabling and sensors with connectors already installed You are not expected to cut or solder any wires These sensors should just plug into cables with the correct mating connector If you think you will have to cut or change any connectors CALL PERFORMANCE TRENDS first You may be making a mistake e Optional power switch to cut power to the DataMite II or Black Box II The hardware instructions given here are very general and describe the overall DataMite system Most DataMite options come with their own installation and instruction sheet These instructions are more detailed and up to date than what could be contained in this manual For that reason it is important for you to read and keep those individual instructions 2 Determine Signals to Record Both the Black Box II and the DataMite II systems are designed to record engine RPM on channel 1 Figure A2 9 gives typical sources for Engine RPM signals for various ignition systems With the Inductive Pickup options you can record spark from a spark plug wire or sometimes with coil on plug ignitions with close placement to the ignition coil with no direct electrical connection to an ignition modu
83. the graph e Inthe Reports Screen click on File and you can choose to email the report as an Adobe Acrobat PDF file See Figure A7 4 This is available in the Pro version only You can now print your company s logo on printouts of graphs and reports Click on the Printing tab at the top of the Preferences screen and enter your settings and Browse to pick you graphics file for your logo The Graph screen now has a Format feature to display the Legend line labels on the right side in a larger font and scroll up and down through the labels Since the font is larger not all labels can be displayed on the screen if several data types are being graphed Figure A 7 12 This is available in the Pro version only We ve added a Find Ports button in screen to Check Com Ports to let program find what it thinks are valid com ports The Check Com Ports screen is available by clicking on Troubleshooting in the DataMite specs screen or on the main DataMite specs screen for the DataMite III and Mini USB In the screen to Open a test file now when you right click on a folder to delete rename or copy it that folder is now selected also Previously you had to left click it to select it then right click it to have the options presented to you When printing reports e Column Titles that are very long and require more than line are now divided more correctly to split the title on 2 lines e Graph printed title now auto sizes to make sure l
84. then clicking on Unlocking Program Figure 2 7 Menu to Unlock Program Options Options A screen will appear as shown in Figure 2 7 See Ea Unlock Form _ for x Section 1 2 for more information on how to unlock the Cois EE FAend Daaa 239235212 program Computer Hardware 842897 Registered Name Joe Smith Cancel Graph Registered Code 14666 The Graph command lets you graph several different types cee TF Hap of data from the current test either by itself or with data from other tests for comparisons The Graph options are discussed in detail is Section 3 3 page 109 Click on Help for more info on how you use this screen to unlock this program Report The Report command lets you create reports of several different types of data from the current test The Report options are discussed in detail is Section 3 1 page 101 Test Conds The Test Conds command opens up the Test Conditions menu There you tell the program what type of test you ran and the weather conditions which are used for the correction factor In the Pro version you can also specify what type of corrections you want to make and have a place to record some running conditions like coolant temp etc Engine Pro version only The Engine command opens up the Engine Specs menu There you can describe the engine you are testing Some of these inputs are actually used for calculations like if you want corrections made for Engine Inertia effects in Test Conditions Then
85. to test due to acceleration rate changes 185 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices EEN e For chassis dynos for a particular car Always run the same tire type and same tire pressure always keep the hood in the same position either always up or always down and always run the test in the same gear e Many times the DataMite will record actual differences from run to run differences you may not have expected or can not explain These are caused by differences in the actual engine s performance Again the best thing you can do to improve your vehicle s repeatability is to do your preliminary prep exactly the same from run to run and to stop tweaking and making adjustments like to jets spark etc for changes in weather conditions Adjustments are obviously important for testing for improvements but not for repeatability Accuracy There are many types of calculations being performed by the Dyno DataMite Analyzer The accuracy of the torque and HP measurements are probably most important to the user and depends on the following e For an Inertia Dyno it is critical that the dyno s inertia be accurate This could be done by actually measuring the system s inertia but this would be expensive and time consuming Therefore the program estimates the total inertia based on measurements and approximate densities of various materials or the known weight of the components An error here will only affec
86. uosuapa ue asn nod y ageeae Hod WoD ou y aaydepe gsn 10 pod Po WOD 4a ndwuos oy snyd ages euas SSaLWBY INO 4831 ajdnosoway Jo pno una argy nod y SaaYaAuod Hoyeue 40 S0SUAS ANOJ jary ja abeyaadns UOISSIMSUB A ayl Sd aayo soy pasn Ayeaiday S Z syndul dy Snid y ds 0 06 pina agas ajcund ue pasn jou aaay Ul Bnd pno y pasn si Gaas Bnyd Alead yeds auibua op dnyad aaqonpul ue 4 Ba ang peys oup uo Jaunew x a JOSUBS idy YA JOPauUOS uid p apeg Buy ou aheyos aArphau aonpowyul 40 aheyos ao JOU op nod ansua oO suopneaoad lplsads asn enw nod Aiddns wavod uvo sy sey UpIyAA sosuas yy 40 aneb ues e ay 1 apeg By apispno woa pasaod sucsuas woy sjeubis Buiyzeye ae nod y OLN LYOdMII xog apeg ay apisul suadwinf Hurjsnipe Aq yor OLD pue O uaswyag payapas aq ueo sjauueyp 404 paUBbisap s jndul ay peup uey aeyos JayBiy sanpo uea yapa sjeugis yoepe LON Og aja uonsod apoy ay 2424 azAjeue diy ezAeue suoissima aineb ues woy anbio anssad apnjoul sosuas Hojeuy jeadAy WUBI ABA ayp yoa pue yal ayp UO pege gauueyo ajhosoway yo syueg Hal Agah BU yoa pue ypu AU UO Leys sjauueya Bojeu y Jo syueg WAl 40 Paunhyuos uaaq sey appeeg nos UZIS pue g gauueya o payseye aq ues sassauleH jnoyeaug Gojeuy pue aidnosouway jeuoppy SJBUUEYD yoa OO YOA SOF sajpuey SsauJeH es Boeuy g auueya ajdnosoway t sapuey ssauleH jnoyeaug ajdnosoway L aa Jeau Jo adunos yeay eau yy
87. up to 100 ft lbs of torque and the Torque Arm of your calibration arm is 15 long out from the center of the dyno you would need a weight of about 80 Ibs Required Calibration Weight Desired Torque Calibration Torque Arm in Feet From the example above 212 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices See ESSE SSS Required Calibration Weight _ 100 100 100 80l bs 15 inches 15 12 1 25 feet This calibration weight can be most anything without moving parts that will hang straight down without moving that you can weight to get its exact weight This could be a compact chunk of metal an engine crank damper with a hole on edge so it hangs steady etc Be sure to include the weight of the hanger in the calibration weight Do not try to obtain some exact weight which produces some even amount of torque In the example above a weight of 77 4 Ibs would produce just as accurate a calibration as one that was exactly 80 0 lbs The 77 4 lb weight would produce a torque of 96 75 ft lbs Since you tell the program the exact torque 96 75 is a perfectly accurate answer Calibration Procedure 1 Turn on the DataMite to Read the Torque Sensor Channel This procedure assumes you have installed the load cell or pressure sensor which will read the load arm force as shown in Figure A5 3 Follow the instructions with the sensor for wiring and mechanical hookup Turn on the DataMite and let the system warm up 2 Pick the
88. view the graph Select this option and then click on Print Report using these Specs to print the report as an Adobe Acrobat file Note You need to own Adobe Acrobat or some other type of PDF printing software for this feature to work When you click on Print this PDF file will be written and emailed to the email of your choosing Note the recipient does NOT need to have the DataMite program just Adobe Reader or some other free PDF viewer program to view the printed report C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 5 Printing Company Logo graphics file on Graphs and Reports Pro Version Only Preferences Emeiting Graphing Set to Yes to include a graphics file aS ce Of Your company eevee Main Screen Filing System p E ack Program Title Comments Click on Browse button to find your graphics file on this computer Tip Enter text company name fhone etc which will appear at top of printouts Turn Off si cinta Yes z Browse Tipe The path to the graphics file is C My Documents My Pictures Pti TM Color 2 bmp shown here Don t Ask About Updating Restore Printer Fonts Arial Font Defaults Printed Graph Width of Page 100 Also see settings under the Operation and Main Screen Tabs DataMite Data Analyzer v3 7 Xtreme RC Cars Magazine This Report Printed Test 350 HOLLEY HEAD KIT 27 CFG www rc411 com 10 00 am 09 21 08 Customer Dunnaway Chevy Sma
89. will obtain torque at the drive tires which has been multiplied up by gear ratios and the ratio between roller diameter and tire diameter This is only used for Chassis Dynos 23 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Use Higher Resolution Dyno RPM Select Yes and the 4 RPM channel on the DataMite II will correct for imprecise target spacing of magnets or steel teeth used to determine dyno RPM This is usually only critical for inertia dynos The Black Box II always works like this preference is turned On Engine RPM is Calculated RPM Select Yes when you are using a dyno that has a direct gear drive between the engine and dyno No clutch and you are only recording dyno RPM Then if you select to display Engine RPM on a gauge it will be calculated from dyno RPM and the gear ratio used in the Dyno Specs screen Engine RPM on the graphs will also be calculated from dyno RPM and the gear ratio Allow Engine RPM up to 60000 RPM Select Yes to allow the Engine RPMs to be calculated up to 60 000 RPM With this set to No Engine RPMs are limited to around 30 000 RPM Do not choose Yes unless it is really needed as you may find other limitations to your analysis This Preference is only used for inertia dynos not absorber like water brake dynos Config DataMite II for Engine PPR pulses per revolution This setting has a minor fine tuning effect on how the DataMite II determines accurate engine RPM
90. with high RPM but very low torque and HP We ve added a Preference to direct the computer to provide more power to Com Port to better power up the self powered Optical Isolators for serial data loggers This is not needed for DataMite III or Mini USB loggers We ve added a new Torque Preference of Oz In for output When you graph Oz In torque and HP only the program will try to display the HP curve the higher of the 2 by making its multiplier greater This is typically only used for very small engines like radio controlled engines This is available in the Pro version only Program now prints the cursor line on graphs when you print a graph and have cursors on the graph For absorber dynos the program now allows a new Type of run to be specified in Test Options of All Data is the Dyno Test This means the user determine how much data is used for a run by pressing the Record and Stop Record buttons on the control panel This is available in the Pro version only You can now graph and report Chassis Dyno data versus KPH in addition to MPH This is available in the Pro version only New Hardware Options and Features We ve added compatibility to the new Logger Types of DataMite Mini USB and DataMite III USB See Figure A7 9 We ve added the ability to read from the Switch connector for starting and stopping recording on the DataMite III USB This is available in the Pro version only We ve added ability to f
91. with methods 1 and 2 above The 3 choice is for an operator who presses the record button exactly at the time of the start of the test and stops recording at exactly at the time of 37 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions ending the test This is difficult to do and there is some delay between pressing the buttons especially on DataMite II and actually starting the record process so it is generally not recommended Max RPM Min RPM For either the Start High RPM or the Start Low RPM methods the Max RPM and Min RPM are also used to determine where the test will start and stop For example if you specify 7000 RPM as the Max RPM but your test actually only gets to 6000 RPM 6000 RPM will be the highest RPM reported or graphed If you specify 7000 RPM as the Max RPM but your test actually gets to 8000 RPM 8000 RPM will be the highest RPM reported or graphed If you want the program to use the widest RPM range of data run then you want to enter a wide RPM range here like shown in Figure 2 9d Then any valid data between 1500 RPM and 8000 RPM will be reported This section has outlined 3 basic ways for the DataMite software to find the beginning and end of a dyno run 1 Start recording load dyno open throttle at high RPM decelerate to ending RPM close throttle stop recording The program will find the exact beginning and end of test 2 Start recording load dyno open throttle at low RPM acc
92. x tests identified by am Tests Marked Yes Graph al Test Clear raze History Print Help the menu option Tes FieandPah Graph Std Graph Te RundGraph Runs Save Engne TestDate FJ you pick Ten ie anaE cfg Yam 00 0003 04 11 2000 1 tkrause yam 950 cfg 01 02 2000 7 tkrause yam 925 cfg 5 01 02 2000 7 tkrause yam 300 cfg 01 02 2000 7 jason jun2 cfg 04 12 2000 1 jason jun1 cfg 04 12 2000 1 OE E Click in Graph column to select or fae sete tees ly ati see to Slide button right for more History info Tq HP corr to 29 92 60 dry Click and drag slide bar to Click in this column display entire History Log to show Yes or Click here to specify which run or Some tests marked Yes may remove Yes Tests runs to graph if more than 1 run in be at the bottom of the Log marked Yes will be this test very rare land not be visible now graphed if there is ee eee eee eer j L 1 j 1 j 1 t 1 1 I This column shows the Standard name the program will display in graph Legend for this test Click on the name to change it Alternate names are possible by clicking on Format then Edit Titles Other Graphing Features The graph screen has several other features including e Printing Dual Cursors Changing titles and legend names Saving Graph Settings Setting Background Color Setting Line Thickness Cursor to pinpoint the values on the graph Time Alignment Changing the scales Saving Gra
93. 0 100 x 1 less or 30 46 85 29 61 It is useful to keep records of information like this what your actual barometer reads versus what this simple calculation says it should approximately read to see if the comparison is constantly jumping around If you always make the check at the same place same elevation like your home or shop and the difference is varying high by 1 than low by 2 etc you may want to have the barometer or altimeter checked out e Ifyou find that you are making many adjustments to your weather station you are probably doing something wrong A barometer or altimeter which reads low but consistently reads low is better for correcting torque and HP to see trends than one you are trying to keep accurate by constantly adjusting it Dyno Conditions Water Temperature deg F Enter the average temperature of the coolant during the test For air cooled engines enter the cylinder head temperature or cooling air temperature This entry is for information only No entry is required Oil Temperature deg F Enter the average temperature of the oil during the test This entry is for information only No entry is required Fuel sp g Enter the specific gravity of the fuel being used In most situations this entry is for information only and no entry is required If you are measuring fuel flow from a volume flow meter this value will be used to obtain lb hr fuel flow Fuel Enter most any description of the fuel
94. 1 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 172 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Example 4 3 Running an Absorber Dyno Test with DataMite II Figure 4 41 31 Channel DataMite II Suggested Background Reading Example 4 1 Appendix 4 Hardware Installation Section 2 2 Preferences Section 2 3 Test Conditions This example is very similar to Example 4 1 except it is for an Absorber water brake dyno and uses our larger 31 channel DataMite II We will not go into as much detail here as that was done it Example 4 1 Here we will just point out the major differences Control Panel to Start and Stop Data Recording Although this example is for a DataMite Il the DataMite III USB and DataMite Mini USB operate ina similar manner Check Appendix 7 for info on these data loggers and the Quick Start Guide which comes with your logger on information about your particular DataMite system DataMite Il Installation The DataMite II uses a push button control panel to start and stop data recording Fig 4 41 The control panel must be installed close to the operator which in this case is at the control console The control console also has the computer screen and keyboard As with the Black Box II it is best to mount the DataMite II box on something that does not vibrate It should also be mounted relatively close to the engine and dyno so sensor leads are not too long
95. 1 Cor To 29 92 60 dy Cor Factor 1 012 YAM 975 1 Cor To 29 92 60 dry Corr Factor 1 012 Y4M 950 1 Cor To 29 92 60 dy Corr Factor 1 013 YAM 925 1 6000 8000 10000 12000 14000 Corr To 29 92 60 dy Corr Factor 1 027 YAM 900 1 71 te ee ee Figure 4 35 Graph of Figure 4 31 HP Only Heavy Filtering and Zoomed In on Peak HP DataMite Analyzer 2 0 YAM 1000 CFG x Back File Format View GraphType AddTest HistoryLog Single Test Help Note that all runs have a dip el ei elit deea front at the HP peak indicating he dip seen in Figure 4 27 for Corr HP vs RPM corse the 9 75 flex is probably real yam 975 1 CorrHP yam 950 1 corned Before and after the HP peak where tuning effects are not las significant the curves are am 900 1 very similar and all fall very acl much in order Going from left to right the 10 flex comes irst then the 9 75 9 50 9 25 land 9 00 flexes This is lexactly as engine theory would predict that the longer exhaust pipes will peak at lower RPMs This gives you good confidence the test data is good ae eee woe deeee 5 0 7000 8000 9000 10000 11000 12000 13000 14000 15000 RPM 167 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 36 Pro Version s History Log for Graphing Multiple Runs __ gt __CClick here or here to show History Log shown below w DataMite Analyzer 2 0 YAM 1000 CF6
96. 16 31 10 from the examplesdyno fia cig tig 1 Fiat009 01 08 2001 82 50 1600 51 06 42 H examplesdyno yam 975 clg Yes am 975 1 Yam100 0003 01 02 2000 8 51 9600 15 94 10 com pa rison 1 2 1 examplesdyno yam 925 cfg Yes YAM 925 Yam1 00 0003 01 02 2000 8 28 9800 15 72 10 re port tomkraus reed090 cig reed090 Yam100 0003 04 11 2000 12 59 10400 26 05 11 examplesdyno black box ii cfg black box ii 02 25 2005 9 82 3000 6 59 500 4 gt Click in Report column to select or de select tests for Reporting Slide button right for more History info Tq HP corr to 29 92 60 dry AStart G cate Dm 33 Control Pa i OTMMAN LA Dyno Dat TestHi GMNS 2PM 10 064m 135 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 136 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 137 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 138 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 139 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 140 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Chapter 4 Examples Each example in this chapter becomes progressively more complex assuming you have performed and understand the preceding example Section 1 5 s example is somewhat more basic than Example 4 1 so it may be a b
97. 2 Cycle Stroke RPM Accel Times This special report gives the time for the engine to reach various RPM levels as shown in Figure 3 4 Times are given both for cumulative time from the first RPM and time between each RPM step Reports Comparing Multiple Tests Figure 3 4 RPM Accel Times Report A DataMite Data Analyzer 2 0 Performance Trends REEDOS CFG Back Print Report Types File Help F1 Saa Tom 5 22 am 04 11 2000 PkTq 33 89 10250 2 047 Bore Send Cmnts Cor To 29 92 60 dy PkHP 66 91 10500 1 815 ae peer Corr Factor 1 052 5 97 cid 2 Cycle Stroke C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 5 shows the steps to make a report comparing 2 or more dyno tests Figure 3 5 Reports Comparing Multiple Tests Click here to pick a report which just lists the results or also calculates the difference between each test and the current test shown AI Dyno DataMite v3 2 Performance Trends yam 1000 CFG in the first column in this case yam 1000 amp Back Print Report Types File Histo Log Single Test Multiple Tests Help F1 Operator Tom 57 Show Data Only 9500 2 047 Bore E Comments Eng Yam100 0003 Cc y Show Data and Difference 10000 1 815 Stroke Customer Peterson Cone le 1 Cylinders yam 1000 CF pam 975 CFG Run 1 Run 1 RPM Cor Tq Cor Tq 7000 5 71 7500 6 21 8000 6 99 8500 7 73 3000 i 8 31 9500 8 47 Pk 10000 i 8 34 10500
98. 4 Outlook Express 224 Oz In 24 226 Pick Individual Items 101 103 104 piston 82 Piston amp Rods 45 Pk HP 16 Pk Tq 16 Port Volume 46 47 portrait 223 Preferences 6 8 12 16 17 18 20 23 26 27 28 90 124 132 133 154 155 172 224 226 Previous dyno test 223 Print 18 19 48 61 70 123 124 132 133 157 207 Print List of All Files Fitting These Conditions 132 Printed Graph Width of Page 27 Printer 6 27 99 113 123 124 Printer Fonts 27 124 printer orientation 223 Pro Version 6 1 3 6 7 9 11 12 13 15 16 18 19 24 25 27 31 43 57 65 66 67 68 78 99 103 107 109 111 112 116 117 118 123 124 128 131 133 144 147 149 159 165 166 167 168 186 223 224 225 226 227 228 Program Title Comments 26 Quality Data 155 156 162 163 177 Radio controlled 224 226 227 Range 77 102 168 Record 190 220 225 226 Record Switch 225 Redetermine Beg End of Runs 94 registered 3 6 19 Registered Owner 3 6 Relative Humidity 32 84 85 227 Remove Test 111 Repeatability 185 205 Report 19 26 31 32 101 102 103 104 106 107 123 124 135 168 169 224 Report Type 102 Required Inertia 70 71 223 Resize of Current Readings 26 Restore 130 207 223 224 Restore Defaults 224 Rocker Arm 46 47 Rocker Arm Ratio 46 47 Rod Length 45 243 C Performance Trends Inc 2008 Dyno DataMite Analyzer
99. 4500 RPM then all data within that 250 RPM increment from 4375 4625 RPM is averaged together to make the number you see reported at 4500 Use MM SS SS Time For Time reports select whether to Use MM SS SS time formatting If you select Yes then 122 333 seconds will be displayed as 2 02 33 minutes and seconds Include Averages Start Average At Stop Average At Select Yes for Include Averages to enable the Start and Stop Averages specs Enter the RPM or Time range you want for data averaging in the report In the report you will see an asterisks at the times or RPMs in this Average range and averages on the bottom row of the report for the data in the rows with these asterisks Report Types 102 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Pick Individual Items This report will include columns of data you have selected in the Report What section of the Reports menu They will be reported following the other specifications you have set in the Reports menu The Data Types are defined in Table 3 1 Figure 3 3 shows a report for the settings in the Report Menu shown in Figure 3 2 Table 3 1 Data Types for Reports Data Type Report Definition Column Name DataMite Frequency User Specified The data from any frequency channel can be graphed The raw frequency signal will be converted to data following the Sensor amp Calibration info you ve entered in the DataMite specs screen Anal
100. 462 33 5400 534 19 6400 Click on Test Title 1st Column to Open that test Click and slide button on right for more History info Tq HP corr to 29 92 60 am ween gerne From this screen you can Open a test file by clicking on the Test File and Path column first column on the left Ifthe test file was saved to a standard folder directory or whatever you have chosen to call folders in the Preferences menu the folder name is given first followed by the test file name If a test file has been Opened from or Saved to a non standard folder a folder not in the DIMDATA folder using the Advanced function the entire path is given If the Path and File Name won t fit it is shortened and preceded by You can choose to Save certain results you believe are special and you may want to recall or graph in the future by clicking on the Save column to insert a Yes there Tests marked Yes to Save eventually move to the bottom of the History Log but are never dropped off the list or erased until you again click on the Yes to make it blank Note that just the Test File Name stays in the History Log Should you delete the file using the Open from all saved tests command the test file will be deleted but the name will stay in the History Log When you try to open it or a if Pom the meas soi sete will ae note saying ue ile can not be Mte readable heh the Pas Odeitation is in ieee setting 133 C
101. 5000 range Starting RPM albania eh Sec ha Corrected flywheel HP l Notes Data to Report 8 types max Observed flywheel torque Observed flywheel HP Corrected flywheel torque Corrected flywheel HP Therefore you set the Starting and Ending RPM specs to 7000 and 15000 respectively The RPM increment you set to a relatively RPM Increment large 500 RPM because you are not Use MM SS SS Time interested right now on how HP changes with RPM or what the HP is at particular RPM You are interested in Average HP Start Average At 000 Ending RPM i j 4 Include Averages lt es Stop Average At 4000 Data averaged over each increment EL Set Include Averages to Yes and the RPM range for Averaging data at 8000 to 14000 Note that the range of RPMs you select for Make Report Help Cancel averaging will effect the results and can Open Edit Save These Settings even change which exhaust length 7 To obtain comparison reports of 2 or more files click on History Log or produces the highest average HP MulNple Tests at the top of the upcoming Report Screen Do not extend the Averaging RPM Range As stated here this example will take advantage of out to the very start or end on the dyno test doing a report of multiple tests At those extreme RPMs it may not be certain if the throttle had gotten completely open or if the engine stumbled when you opened
102. 6 59 5000 056 Corr Factor Operator STAN Test Data corr to 29 92 7 60 deg dry air int APM Cor Tq CorHP a Corr Tq Corr HP 5 56 7 67 8 75 9 57 9 74 9 82 Pk 3 76 9 62 3 11 8 81 8 22 7 78 7 57 7 44 7 21 6 96 6 63 es 5 0 Sann 2000 2500 3000 3500 4000 4500 5000 5500 6000 3 This Summary Graph shows Tq and HP for current run for this test file If you click on a graph line as Seo EEE ay Se Click on slide bar and slide up or down to display all results The Filtering smoothing of the power curve and RPM increments are selectable in the Preferences Menu Section 2 2 Peak torque and HP are marked with Pk Check Appendix 7 New Features in Version 3 7 for new features for the Main Screen 2 1 1 Tabs A test you download from the DataMite II or Black Box II is almost always for only 1 dyno run However the older 4 Channel DataMite could record more than run For tests with more than run you move to different runs by clicking on the Tabs at the top of the screen If you want to break up a test of 2 or more runs into smaller tests possibly with only 1 dyno run per test click on Edit at the top of the Main Screen and select Delete Beginning or End of Run See Section 2 10 page 93 14 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 1 2 Engine and Test Conds Bore Pro version only Stroke Pro version only cid Cycle Pro versio
103. 7 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 48 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 49 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 5 DataMite Specs The DataMite menu tells the program what type of DataMite you have what sensors you are using and how the sensors are calibrated The entries in this screen are critical to accurately recording data Check Appendix 7 page 223 for info on new DataMite USB loggers Figure 2 12 Typical Note on Master DataMite Specs Settings DO NOT Match the Master DataMite Specs Master Data M ite S pecs These DataMite specs were used for the current test A critical concept for DataMite Specs is the idea TESTCH4 CFG of the Master DataMite Specs When you download data from the DataMite you are using a particular DataMite Setup with certain sensors and calibrations A calibration describes how the DataMite should convert a sensor input into useful information like 2 2 volts is 34 ft lbs of torque When you save the dyno test the program saves a copy of the DataMite Specs with the test Lets call this test TestCh4 and assume it was run with a 4 Channel DataMite There are 2 settings which do not match your current Master DataMite Specs the DataMite you use to record your data Lets say several months later that you buy a new DataMite II 31 Channel Figure 2 13 Illustra
104. 85 186 191 192 205 212 213 219 225 227 Compression Ratio 9 45 81 82 Add Test 111 162 165 168 Configuration 189 Adobe Acrobat PDF 224 Convert to Columns 107 Advanced 18 44 130 133 copy 3 6 19 51 65 128 130 207 208 209 224 227 Air Temperature deg F 32 Copy Calibration to Another Channel 227 All Data 101 102 109 226 Corr Barometer Hg 32 All Data is the Dyno Test 226 Correct for Engine Inertia Effects 1 35 69 103 225 Allow Engine RPM up to 60000 25 Correct To 35 Altimeter 31 32 33 Corrected flywheel HP 103 Altitude 33 Corrected flywheel torque 103 Always Autoscale New Graph 27 Corrected HP 168 204 Analog 7 24 54 56 57 58 59 75 76 78 103 172 173 Corrected Torque 8 17 62 152 156 165 167 186 189 190 191 201 204 211 213 214 223 227 correction 16 19 34 35 149 170 190 216 219 225 ASCII 6 1 99 107 224 227 Assumptions 7 4 33 56 185 213 Correction Factor 3 16 19 34 35 45 112 121 167 170 Automatically Edit Out Noise 25 190 216 227 Automatically Filter Out Noise 25 Correction Factor SAE 35 Average Engine Torque 71 Correction Factor Std Race Dyno 35 Crank Description 45 back up 207 209 210 Crank Wt amp Descr 45 Backup 130 207 209 223 Ctrl1 N command 225 Barometer 32 33 61 Current Readings 6 20 26 60 61 69 72 75 76 77 79 Barometric Pressure 32 89 148 150 190 219 220 223 226 228 Baseline 187 Current
105. Analog Channel from the DataMite Specs Screen Click on the channel with the torque load sensor installed as shown in Figure A5 5 This will open the Calibration Screen shown in Figure A5 6 IMPORTANT Dyno Tq must be on the 6 channel That is Analog Channel 1 for the DataMite Il and Analog Channel 4 for the Black Box II In the calibration screen of Figure A5 6 select Analog Converter as the Sensor and Dyno Tq as the Sensor Type Dyno Torque is a special channel name reserved just for Absorber dynos You will notice the lower section called Analog Sensor Specs become enabled When you are done with the calibration be sure to set the Torque Measurement type in the Dyno Specs screen to Torque Arm Figure A5 5 Open DataMite Specs Menu A Dyno DataMite 3 2 Performance Trends 383 chevy 2 CFG File Edit Graph Report TestConds Engine DateMite Dyno Preferences Help Start D DRS haere xi Back File DataMite Il Options Curent Readings Troubleshoot Help Type e v Com 2 Weather Station None z c om z Rate samples sec 50 DataMite Il Recording Segments E Approx Record time segment 3 min 13 sec l Channel Settings Channel Used DataName Sensor and Calibration 7 TM Engine RPM RPM 2 Cylinder 4 Stroke 2 Frequency 2 P AFR Cstm 200 800 Hz 10 17 P AFR yellow Yes D AFR Cstm 0 800 Hz 8 5 14 86 D AFR 4 Frequency 4 blue Chnil 4 Not Being Used 5 Frequency 5 green Chnl 5 Not Being
106. B l ac k Box l l Sc ree n bration you affect which specs are enabled or disabled in this 1g ures 2 5 a nd g 6 will be presented with new screens to change the menu p 42 current settings If you specify the 31 w Data Mite Specs channel DataMite II you Back File DataMite I Options CusentFeadings Troubleshoot Help have many more settings 31 Channel DataMite I x Com 2 x Weather Station None c om 3 z Sampling Rate samples sec 5 DataMite II Recording Segments a 7 Approx Record time segment 3 min l Channel Settings Oe _ _ al innti Sensor erd Catan es Yes Cstm 199 4 799 6 Hz 10 16 99 P AFR Rate number of active yellow Yes DAFR Cstm 0 800 Hz 8 56 14 86 D AFR channels Used set to _ blue Chni 4 Not Being Used Yes and Segments green Chnl 5 Not Being Used determine the fed Torque DynoT gq 0 878 2 885 5v 87 583 Torque approximate recording yellow Dil Pres Cstm 5 4 5 5v 0 250 Oil Pressure time for each segment blue Fuel Pres Cstm 5 4 5 5v 0 50 Fuel Pressure green Vaccum Cstm 0 994 0 10 0 30 Vaccum fed Exh 2 Std Thermocouple Exh 2 30 yellow Exh 4 Std Thermocouple Exh 4 30 blue Exh 6 Std Thermocouple Exh 6 30 green Exh 8 Std Thermocouple Exh 8 30 Click on most anything in the Channel Settings grid to change it For Used you will toggle between Yes and No For Data Name and Se
107. Check Appendix 7 New Features in Version 3 7 for new features for this screen Engine Customer and Comments Engine Engine numbers can be critical for shops testing many engines The program keeps track of numbers so you don t assign duplicates or skip numbers Consistency of Engine number patterns also makes it easy to find engines in the Test Library If you click on the Engine spec the menu of Figure 2 11 is displayed This menu lets you pick a new engine number three different ways 42 C Performance Trends Inc 2005 1 You can start a new Engine format if you select Yes for Enter a New Number Format For example say you currently are using Johnson0012 as a Engine for 1 customer Johnson Now you have a new customer Smith and you want to start with s like Smith0000 2 You can simple use the last Engine used incremented up by 1 if you select No for Enter a New Number Format 3 Select No for Enter a New Number Format then select some other Engine not the latest Engine from the Numbers list and a new Engine will be created from it This new will be either the exact you picked typical if you are testing an engine which you have already tested or incremented up by 1 if you request it typical if you are working with a new engine but with the same Engine format This is a list of the last 100 Engine s you have assigned For Advanced Users To delete or change s in this list use WordPad or No
108. D of 10 59 You can type in both numbers or adjust them after clicking on the Measure Both RPMs from Dyno button Example Cases Case 1 You know 2 of the 3 settings but not the 3 Enter the settings you know and leave unknown setting blank Click on the Meas button In the Measure Tire Gear screen the unknown setting is already picked as the Spec to Adjust Get the vehicle running on the rolls in the gear ratio you will test at Click on Measure Both RPMs from Dyno and both RPMs are filled in by the program If both RPMs look correct then the unknown setting will be shown as the New Setting at the top of this screen Click on Use Calc Value button at bottom of the screen to use the new setting Case 2 You do not know anything about the vehicle Enter estimates of the Tire Radius and Final Drive Ratio and leave Trans Gear Ratio blank You do not have to be even close just enter some reasonable number Follow the procedure of Case 1 If your estimates were close then the New Setting should be a reasonable estimate of the unknown setting 36 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions SSS ee EE UUO Case 3 The Engine RPM is wrong or missing entirely Follow the procedures of Case or Case 2 After you click on the Measure Both RPMs from Dyno button manually enter the vehicle s tachometer reading for Engine RPM when you measured the Dyno RPM reading Case 4 You have a pair of Dyno a
109. DataMite Analyzer 2 0 YAM 1000 CFG x Corrected flywheel torque Back File Format View GraphType AddTest HistoryLog Single Test Help Corrected flywheel HP Hea BERRE Heber Other Graph Specs Corr Tq Corr HP vs RPM yam 000 1 Time or RPM Graph RPM What to Graph Just Power Run 1 M Filtering L l Notes Data Selected to Graph 4 types max Corrected flywheel torque Corrected flywheel HP Make Graph Help Cancel Print Figure 4 33 shows 2 main things 1 The torque and HP for the 9 75 flex is higher over most of the RPM range 6000 8000 10000 12000 14000 16000 RPM from 7000 to 15000 RPM 2 The 9 75 flex shows a sharp rise then A quick up then down or down then up as fall in torque and HP For most shown here in the curves usually indicates a engines this would a clear indication bad data point However on this highly tuned 2 that something unusual happened stroke engine this may be real during the test However for this highly tuned 2 stroke engine this may be real A highly tuned engine is one which takes strong advantage of the pulses in the intake and exhaust tract These engines are prone to producing peaks and valleys in the power curves If time would have allowed this 9 75 flex test would have been a good test to repeat When unusual results are obtained the best check is to repeat the test If the trend repeats it probably is real Although the 9 75
110. DataMite III USB 20 76 143 172 200 224 226 227 DataMite Specs 6 19 20 51 52 57 89 90 123 144 145 152 178 191 202 213 215 227 date 16 90 154 189 190 193 207 208 209 decimal places 24 226 Delete 15 35 44 58 93 94 128 133 224 Delete Beginning or End of File 93 94 Demo 3 5 6 8 19 Density Altitude 33 226 Desired Accel Time 72 Dew Point 33 83 84 85 227 Dial and Bar Gauges 226 digital On Off relays 227 DIN power correction factor 225 Disk 24 209 Display Run Summary 25 Distributor 46 Do not exceed RPM 223 DOS 128 Drive Tire Radius 36 37 Dry Bulb Temp 84 85 DT2 AF1 223 Dyno Conditions 34 Dyno Specs 6 4 12 20 25 35 55 65 66 67 72 89 90 103 123 130 147 149 152 201 204 205 213 215 219 220 Edit 6 8 15 93 94 95 113 117 120 134 162 202 Edit Out Noise Spikes 95 Elevation 32 33 34 Email 1 3 224 Enable Optical Isolator Power 26 Eng Intake Air 227 Engine 25 43 44 90 154 Engine Accel 103 Engine Comments 48 Engine File 44 48 128 Engine Inertia 19 225 Engine RPM 1 25 35 37 38 54 55 56 69 76 94 95 103 155 156 162 190 193 197 201 203 204 226 227 228 Engine RPM Accel Report 226 Engine RPM is Calculated RPM 25 69 201 226 228 Engine Specs 6 9 12 13 16 19 43 44 48 90 103 123 127 130 132 151 152 153 186 225 Engine Type 55 204 En
111. Dyno DataMite Analyzer V3 7 for Windows Check Appendix 7 page 223 for recent changes Users Manual Performance Trends Inc Box 530164 Livonia MI 48152 248 473 9230 Fax 248 442 7750 Website www performancetrends com Email feedback performancetrends com Performance Trends Inc PO Box 530164 Livonia MI 48153 Tech Assistance for Registered Owners 248 473 9230 Fax 248 442 7750 Email feedback performancetrends com Website tips correspond with other users download demos update schedule etc www performancetrends com Copyright Notice Copyright C 2008 PERFORMANCE TRENDS INC All Rights Reserved These software programs and user s manual are reserved by PERFORMANCE TRENDS INC and are intended for the use of the original owner only Copying or duplicating these products except for the personal use of the original owner is a violation of U S Copyright Law and is hereby expressly forbidden Portions Copyright C Microsoft Corp 1982 2005 All Rights Reserved Windows is a registered trademark of Microsoft Corp DISCLAIMER Of WARRANTIES THE SOFTWARE PROVIDED HEREUNDER IS LICENSED AS IS WITHOUT ANY WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY WARRANTIES FOR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE NO ORAL OR WRITTEN STATEMENTS REPRESENTATIONS OR OTHER AFFIRMATION Of FACT INCLUDING BUT NOT LIMITED TO STATEMENTS REGARDING CAPABILITY CAPACITY SUITABILITY FOR USE OR PERFORMANCE Of SOFT
112. Dyno DataMite Analyzer Chapter 2 Definitions Chapter 2 Definitions 2 0 Basic Program Operation Whenever you start the Dyno DataMite Analyzer Basic or Pro versions you are brought to a Main Screen which will look like Figure 2 1 Figure 2 1 Main Screen Name of Current Menu Commands of File Graph etc These Click here to start a Test File give you all the options to operate the new dyno test program and change test data A Dyno DataMite 3 2 Performance Trends black box ii CFG File Edit Graph Report TestConds Engine DataMite Dyno Preference Start Dyno Run _ Enter most any Test amp Engine Conditions test comments Test Comments here to keep 2 560 Bore 1 13 am 02 25 2005 EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST PIPE HhHetp This table shows RPM amp MPH values for this run Click notes about this 2 437 Stroke PkTa 9 82 3000 i engine or test 12 54 cid 4 Cycle PkHP 6 59 5000 1 056 Corr Factor Operator STAN Test Data cor to 29 92 60 deg dry air Corr Tq This summary graph shows how Corr Tq land HP for current If more than 1 run in a test they arel graphed also in gray 3000 2500 3000 3500 4000 4500 5000 5500 6000 or comparison ou can click on a point on the graph line and hat point will be highlighted in the test data grid Click on Slide Bars to display more Test Data which may not be able to fit on the screen See eee eerie
113. NLY accurate torque reading for this test at 4000 The other 3 readings at 4000 are NOT at full power WOT Graph 3 shows typical torque and HP vs RPM performance graphs for these 2 cases The data from Graph 2 shows very j accurate normal looking Performance from K i hs power runs Graph 2 results f a where the beginning and end of the run were correctly identified is higher i more normal l f i i Performance from a test looking and more i i where the beginning or end of accurate i the test has not been correctly identified shows strange looking power curves and generally lower performance hkl A aee 39 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 40 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 41 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 4 Engine Specs Pro version only The Engine Specs describe the engine being tested Some specs are used for calculations but most of the other specs are for information only You can use the Filter command in the Open from all saved tests menu to find tests you have saved based on these entries For example you can find all test you ve run where the Cam description has the word Crane in it Figure 2 10 Engine Menu Click on File then New to blank out this menu Open Ex
114. Options Menu shown in Figure 3 2 The What to Report just Power Run 1 v Dyno wheel RPM inputs in this menu are described below Filtering eel a slip Z Observed flywheel torque Range of Data Observed flywheel HP Corrected flywheel torque Type Starting RPM Corrected flywheel HP Ending RPM Brake Spec Fuel Cons RPH Increment l Notes Data to Report 8 types max There are 2 basic types of reports 1 Pick Individual Items 2 RPM Accel Times Use MM 5S S5 Time Yes Chnl 2 Include Averages ik af supers They can be picked by clicking on the down E 7 Tisheelt arrow key of this combo box If lect Start Average At coaialiitesle y Ifyou selec Corrected flywheel HP RPM Accel Times several options in this Stop Average At menu may be enabled or disabled dimmed to Parva gray and you can not change them because z a pi etae a na Tees they are not applicable to that report type _ Make Report ii ee 1S shown later in this section Open Edit Save T If you selected the Pick Individual Items report type click on the Data Types in the To obtain comparison r ports of 2 or more files click on History Log or top right section to eelect or deselect if t Multiple Tests at the top of the upcoming Report Screen has already been selected that Data Type for reporting Time or RPM Report Click on the down arrow button to choose either RPM or Time for the various
115. PM See Figure A5 1 Figure A5 1 Examples of Various Types of Sensor Signals Analog for example throttle angle Switch digital RPM frequency This time Full Open Throttle determines 3 4 Throttle the RPM 1 2 Mer eee Closed Throttle io 1 4 Throttle Switch Sensors and RPM Sensors do not require much calibration Tell the program if either high or low voltage is opened or closed or On or Off and the switch channel is calibrated Just tell the program how many pulses you get on 1 revolution of a shaft and the RPM channels are calibrated These 2 types of channels are not usually in error just some It is usually very obvious if there is a calibration error like specifying the wrong number of magnets on the dyno inertia wheel Analog signals are more complicated In the example above the close throttle position could occur at 48 volts and the full open throttle could occur at 4 73 volts Or the close A A throttle position could occur at 3 21 volts and Figure A5 2 Illustration of an Analog Sensor Calibration the full open throttle could occur at 1 76 volts Just about any 2 combinations of conditions Absorber Dyno Load could happen If you don t tell the computer the 2nd Value correct combination the data may be off just a x 4 4 volts 28 Ibs little bit or be completely wrong The process of telling the program these 2 combinations is called calibrating the sensor This is done in the DataMite screen as described i
116. Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 39 Specifying Which Runs to Graph if more than 1 run in a test Enter Run s Ed Enter the run s to be graphed separated by a Peak Tq Peak HP Bore Stroke Cyl and the calculated CID are handy to remind you what a run was and for comparing different test sessions History Log at Graph Screen comaa For eanne to ug graph runs 1 and 3 At the Graph Screen several options are available to graph selected tests from the enter History Log and change the Graph Titles You can obtain the History Log by clicking on the menu command History Log at the top of the Graph Screen The History Log is how you graph different tests together for comparison From this screen you can 1 3 e Choose to Graph certain Test Results by clicking on the Graph column to insert a Yes there Tests marked Yes to Graph will be graphed when you tf 4 click on the Graph Tests Marked Yes The first test usually the current Test you are working with is always graphed even with no Yes marked The number of tests actually graphed is limited by available space usually a limit of about 24 graph lines total e Graph only the current test results the test file at the top of the Log by clicking on Graph Current Test Only e Click on Graph Title to change the Standard Title for this test The program will default to the test file name without the CFG extension You c
117. Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Chapter 3 Output The Dyno DataMite Analyzer provides several ways to view and output the test results including Reports of tabular data displayed on the screen ASCII files for importing results to other software packages Pro version only High resolution graphs Printer output of reports or graphs History Log Pro version only Data Libraries for recording test data and sets of engine specs in the Pro version for later use All these topics will be covered in this chapter Figure 3 1 shows how to reach all these various features Check Appendix 7 page 223 New Features in Version 3 7 for latest features Figure 3 1 Various Output Options from the Main Screen Click on File to display several options to Save test files Open test files which were previously saved display the History Log or print information Click on Graph to display several Graph Options and produce a high resolution graph Click on Report to display several Report Options and produce a tabular report Once a report is displayed it can be output as an ASCII file or printed Name of current Test File Open shows all test you ve saved under A Dyno DataMite v3 2 Performance Trends black box CFG different Folder names Fhe Edit Graph Rep ft TestConds Engine DataMite Dyno Preferences Help New get data from DataMite Ctrl N Open from all saved tests Ctrl O Op en
118. Preferences Help 350 FOUND THAT 42 TOTAL TI MOVE TIMING 3 DEG TO 46 Restore All Backed Up Tests Restore One Backed Up Test 265 8 Saving To and Opening From an External Drive floppy CD or memory stick makes it easier to transfer individual tests from one computer to another Email command lets you email the current test on the main screen all 3 files to another user of the DataMite program if you ve turned on this feature in Preferences See screen below Import Export commands give tips on receiving and sending data to other computers or from previous or earlier versions of the DataMite program Backup and Restore commands make it easy to back up all you critical data files for transferring to another computer or restoring if you have a computer failure w Email To Type in email address or pick from list below Email to tech performancetrends com Screen for emailing test files Message to Send Please check the Engine RPM signal File to Attach and Send Engine 350 HOLLEY HEAD KIT 27 CFG Send Cancel One of the screens when backing up Saye Backup Copies of DataMite Test Files your data files DY Do you want backup copies of all DataMite Test Files saved to the amp Drive Choose No to pick a different drive Choose Cancel to not backup these files No Cancel 231 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 4 Emailing Opt
119. Rato44 and assume it was run with a 4 4 gear reduction Lets say several months later that you test a higher RPM engine and you install a 6 2 gear reduction There are 1 settings which do not match your current Master Dyno Specs the Dyno you use to record your data Or you could have changed any Dyno spec different inertia wheel size etc Your current Dyno specs do not match the specs for GrRato44 If you open GrRato44 the program installs the 4 4 gear ratio Dyno specs which you used when you ran that test This lets you accurately calculate torque HP clutch slip and other data just as you did when you first ran the test If you go into the Dyno Specs menu you will likely get a message shown in Figure 2 18 saying that the Dyno Specs for GrRato44 do not match your Master Dyno Specs the specs for your current 6 2 gear reduction You may ask What are Master Dyno Specs The program keeps track of any changes to Dyno Specs asking you if these changes should only apply to the Dyno Specs for a particular dyno test or if these changes represent your actual Dyno the Master Dyno specs Whenever you start a new test either based on a previous test or starting completely blank the Master Dyno Specs are used Whenever you open an old test file the Dyno specs used for that particular test are used 64 Figure 2 19 Illustration of Master Dyno Specs A Test File contains the raw Dyno data and other p
120. Run 2 if it exists Just Power Run 1 Just Power Run 3 if it exists etc Click on the down arrow button to choose either to report All the Data all data recorded or just a particular run If you have selected an RPM graph you can only choose a particular run Note In the Pro version you can also select which run to graph by entering the Run number in the History Log See Section Sel Filtering smoothing Click on the down arrow button to select the level of filtering smoothing to be done to the data before the report is made None Medium Light some Heavy lots Select the lowest level that eliminates most not all of the jitter in the data Be careful not to over filter as this can completely distort the data The dip seen in the Graphs of Figure 3 14 is real and is due to exhaust tuning effects on this 2 stroke engine Note that the graph with Heavy Filtering has lower Peak values than the graph with Filtering set to None Also note that the dip at 11000 RPM is not as deep with Heavy Filtering This shows how Heavy Filtering can distort the data 110 C Performance Trends Inc 2005 Figure 3 14 Examples of Various Levels of BUSSE ta DataMite Analyzer v2 0 YAM 1000 CFG Back File Format View Graph Type Seal History Log Multiple Tests Help EV Velo Leele edeli evee sca 40 L 4 4 4 4 4 4 3 6000 7000 8000 9000 410000 11000 12000 13000 14000 15000 RPM w DataMite Analyzer 2 0 YAM
121. Save Tq HP vs RPM raphs Make Graph grap oad Settings for Std Tq HP Graphs For Graphs it works much the same except you click on Format then Save Open Edit Current Format or press lt F3 gt DataMite Analyzer v3 7 bansh13 kevin to cut3 CFG Back File EA View GraphType AddTest HistoryLog Single ave Open Edit Current Format Data To Graph graph type Which Tests to Graph history log Data Multipliers Line Style Edit Titles Legend Edit Printed Comments and Data Output Then you open up this screen which works much like the Report Formats except it will also save the type of scaling you are using on the graph Enter an name here then click on Save to save the Report settings on the left side to that name 1 5 5 5 2000 12000 time dfsalkdfsidfsa Tg amp HP vs RPM Ta amp HP vs RPM 6000 8800 TqHP 6960 7680 18 30 Graph Format Name Tq amp HP vs RPM 6000 8800 Save Delete Close C r Tum Auto Scaling Off Current Graph Format is Auto Scaled saved scales will have no effect 229 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 2 New Features on the Main Screen some for Pro Version Only Click here for a faster way to start a new dyno run assuming you want to run a test similar to the last test you ran If the program thinks there may be some problems with your test click on this message for more details on these possible problems KA Dyno
122. Second lines These 2 lines will appear at the top of printouts and printed graphs This is a good place for your business name or your personal name You can change these entries as often as you wish Std Graph Title Created in History Log Choose Use Test File Name and then whatever name you use for the file name when you create a new test is used as the default name in the History Log This is also the name used in Graphs and Reports Lap Top Graph Adjustment Choose Yes and the graph screen is slightly more narrow This ensures you can read the legend on the right side of the screen on some lap top screens Always Autoscale New Graph Pro version only Choose Yes for Always Autoscale New Graph and each time you do a new graph the graph is autoscaled program picks the scales to show all data This is usually the best for beginners Choose No and any manual scales you have set will be maintained for each new graph until you quit the program Printer Fonts Choose which basic type of font to use for printouts You may not get your choice if your printer does not support that particular font Printed Graph Width of Page Due to the endless combinations of computers Windows setups and printers some printed graphs may not fill the page some may extend off the page to the right This option lets you expand greater than 100 or shrink less than 100 the printed graph to better fit the page Figure 2 8a Typical Help Tip
123. Test 8 12 17 18 19 23 60 62 70 89 90 93 Basic Version 1 3 6 19 66 111 149 165 94 111 121 129 134 144 152 154 161 178 209 Black Box II 1 12 15 20 25 34 53 54 59 61 76 143 Cursor 112 115 116 164 165 170 204 220 144 148 149 150 151 159 172 181 190 192 193 Customer 1 12 24 43 44 132 194 195 199 200 201 202 213 223 225 227 Block 44 45 103 132 186 225 Data Name 54 56 57 60 144 Bore 16 44 82 134 DataMite 1 4 6 7 1 3 4 5 6 7 8 9 11 12 15 16 17 Browse 5 224 19 20 24 25 26 32 34 38 39 48 51 52 53 54 55 57 58 59 60 61 62 65 68 69 75 76 77 89 90 93 Calcd gear ratio 103 94 95 99 102 103 107 123 127 128 129 130 131 calibrate 1 35 37 57 58 216 143 144 145 147 148 149 150 152 154 155 159 calibration 24 51 53 55 56 57 58 59 61 62 103 186 162 172 175 178 181 185 186 189 190 191 192 204 211 212 213 214 215 216 225 227 228 193 199 200 201 202 203 204 205 207 209 211 cam 1 46 55 186 187 212 213 215 216 219 220 223 224 225 226 227 Cam 19 43 46 187 DataMite II 7 12 15 20 25 34 38 51 53 54 58 59 camshaft 46 60 61 62 75 76 143 144 172 175 181 189 190 Carb 47 132 191 192 193 199 200 201 204 213 223 224 225 Chamber CCs 82 226 227 241 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices
124. These losses can be significant and make the Pro version more accurate if the coastdown test is done carefully Running a Dyno Test 149 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSS SSS SSS SSS SSS SSS SSS SSS aS ee ee You have now done the preliminary work which checks that the DataMite seems to be working well and have setup the software s Master DataMite and Master Dyno specs to correctly match your Black Box and Dyno These initial settings are only done for your first dyno test Now you can actually start recording engine data The first tests you run will be basically for practice Do not expect them to be exactly correct because you will forget something etc An inertia dyno test run is fairly simple to do Here are some tips before you start e The DataMite program is actually smart enough to find your dyno tests in your recorded data The program wants to see some data before and after the actual dyno test e The test is run by warming up the engine ideally to exactly the same temperatures coolant temp oil temp head temp etc for each run e You will need to be on the Current Readings screen to record data from the Black Box II The easiest way to do this is to click on the Start Dyno Run button at the top left side of the Main Screen Note It is recommended you use this screen only if you have protected your computer s serial port with Performance Trends optical isolation system Otherwise
125. This can picked from a list of common transmissions by clicking on the Clc button See Figure 2 9b Final Drive Ratio This is the ratio of the final drive for example the rear axle ratio of a rear wheel drive car It includes any primary reduction ratio which is common in motorcycles This is the ratio between engine RPM and transmission input RPM This can calculated by clicking on the Cle button See Figure 2 9b Figure 2 96 Calculation Menus for Vehicle Description Specs Calc Tire Radius inches xi Calc Tire Radius inches m24 Inputs Rating Type P Metiic ex P225 60 15 7 Metric Tire Size ex 225 225 iw Calc Final Drive Ratio x Letter Tire Si PROT IND SEO Calc Final Drive Ratio Aspect Ratio Wheel Rim Diameter in Inputs iw Picked Trans Gear xi a Tire Diameter in z Type Motorcycle know Trans Reductic Circumference in Picked Trans Gear fs Primary Gear Ratio fi 33 Note Inputs Calculated radiuses are reduced approximately Trams Mari 95 Corvette Camaro 6 Spd 7 Teeth Drive Sprocket 3 from exact dimensions to allow for some wear deformation and slip Gear and Ratio Teeth Wheel Sprocket seo Concei pint Use Cale value top cane pine Uee Eole Value Hee Cone rin Command Buttons Save 35 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definit
126. Used fed Torque DynoT gq 0 878 2 885 5v Nil Oran 213 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 3 Obtain a Zero Reading First you want to tell the program what type of signal you will base this calibration on For most all analog channels choose 0 5 volts If you are not using 0 5 volts for a particular channel necessary for some intake manifold vacuum sensors Performance Trends will state that in the sensor s calibration sheet A dyno torque calibration is best done with the engine not connected to the dyno Then with no calibration weights hung from the calibration torque arm the dyno should be at zero torque You might want to push down slightly on the calibration arm then pull up slightly to free up any stiction in the system Type in 0 for the Ist Value ft lbs torque in the calibration screen Then click on the Read button for 1st Value Volts and the program will read the signal from the sensor with 0 torque It will store this reading as the 1st Value Volts where you can see it Figure A5 6 Calibration Menu for Torque Sensor Using Analog Converter B Type in O torque for the 1st Value C Type in upscale torque for the and click on Read button for program 2nd Value and click on Read button o read sensor at 0 torque or program to read sensor at the upscale torque i Analog Sensor Specs xi ia Analog Sensor Specs xi Analog Sensor Specs xi cad
127. Version 3 7 click on the Troubleshoot button over the graph and the Data Quality graph will be done automatically so you don t have to make any changes to the Graph Settings See Appendix 7 page 223 Since the data quality generally looks very good you can have good confidence in the calculated torque and HP Click on Graph Type at the top of the Graph Screen and select to graph Corrected Torque and HP vs RPM for this test Set up the graph specs as shown in Figure 4 20 Click on Make Graph and you will obtain a graph shown in Figure 4 19 Figure 4 17 Checking Engine RPM and Dyno RPM Data Figure 4 18 Graph Menu Specs to Quality Check for Data Quality Graph Name x Engine Accel RPM sec Dyno wheel RPM Calcd gear ratio Clutch converter slip Other Graph Specs Ti RPM Graph i Data generally very Time smooth during What to Graph jacceleration showing Filtering good data quality Notes Data Selected to Graph 4 types max Engine RPM Dyno wheel RPM a Time sce Make Graph Help Cancel Print 156 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 19 Torque and HP Graph Figure 4 20 Graph Menu Specs for Graphing Torque and HP vs RPM Engine Accel RPM sec Dyno wheel RPM iw DcaMite Analyzer v3 2 Stock Briggs 01 CFG Calcd gear ratio B amp ck File Format View GraphType AddTest HistoryLog Multiple Test
128. WARE SHALL BE RELIED UPON BY USER OR BE DEEMED TO BE A WARRANTY OR REPRESENTATION BY PERFORMANCE TRENDS INC FOR ANY PURPOSE OR GIVE RISE TO ANY LIABILITY Of OBLIGATION Of PERFORMANCE TRENDS INC WHATSOEVER USER ACCEPTS ALL RESPONSIBILITY FOR SELECTING THE SOFTWARE TO MEET USER NEEDS OR SPECIFIC PURPOSES PERFORMANCE TRENDS INC IS UNDER NO OBLIGATION TO FURNISH USER UPDATES OR ENHANCEMENTS EVEN IF FURNISHED TO OTHER USERS LIMITATION Of LIABILITY If at the time of delivery to the original User only there are any defects in the media on which the Software is provided User s sole and exclusive remedy shall be the replacement of any media returned to Performance Trends Inc within 90 days of the receipt of the Software by User or at Performance Trends Inc s sole option a refund of the License fees paid to Performance Trends Inc by User IN NO EVENT SHALL PERFORMANCE TRENDS INC OR THIRD PARTIES WHO HAVE RIGHTS IN THE SOFTWARE BE LIABLE TO USER FOR LOSS Of PROFITS INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF PERFORMANCE TRENDS INC IS AWARE Of THE POSSIBILITY Of SUCH DAMAGES Continued on next page IN THE EVENT ANY REMEDY HEREUNDER FAILS Of ITS ESSENTIAL PURPOSE OR IN ANY OTHER EVENT PERFORMANCE TRENDS INC S LIABILITY HEREUNDER SHALL NOT EXCEED ANY AMOUNTS PAID BY USER TO PERFORMANCE TRENDS INC UNDER THIS AGREEMENT Some states do not allow the limitation or exclusion of liability for incidental or consequen
129. a is graphed and analyzed Your choices are basically e Dyno Run to measure torque and HP from Accel for inertia dynos or from Dyno for Absorber dynos e Custom Test which would be anything else Notice that some of the choices are not used as they are used for Test Types in the vehicle versions of the software Weather Conditions The weather conditions surrounding the engine affect the air s oxygen density which affects engine power You can use your own weather stations In this cases be sure you read the Notes on Weather Conditions at the end of this section page 34 Method of Recording Weather Data Click on the down arrow button of this combo box to be presented with this list of options e Radio TV Report with Rel Hum e Radio TV Report with Dew Pt e Uncorr Baro with Rel Hum e Uncorr Baro with Dew Pt e Altimeter with Rel Hum e Altimeter with Dew Pt e Recorded by Weather Station If you change the Method the 4 inputs specs in the Weather section are changed 30 Figure 2 9 Test Conds Menu Pro version Data Type is critical to how the DataMite data is divided up into runs which can have a large impact on the final results These specs are mostly recorded for information only w Test Conditions Options HP from Accel Dyno Conditions Water Temperature deg F Test Room Weather Conditions Oil Temperature deg F Method of Reading Weather Data Obs
130. a shows the process for finding the maximums minimums or averages over a section of the graph Figure 3 20a Dual Cursor Features and Commands Once you have surrounded the section of graph you want Two 2 cursor to analyze click on one of these 3 buttons to display the lines usually pink Average Maximum or Minimum for each graph line in the or green legend on the right side of the graph depending on background color Click here to turn Dual Cursors ON Click here to turn Dual Cursors OFF Click on these buttons to move the Left cursor left or right Hold down the lt ctrl key gt while clicking these buttons to move the Right cursor Hold down the shift key also and the cursor moves faster im DataMite Analyzer 3 2 yam 7000 CFG Ele Miia Pe eb eb ols anon Corr Tq Corr HP vs RPM Avg r yam 1000 1 Corr Tq Corr HP r yam 975 Corr TQ Corr HP Average button was clicked on so Averages are displayed here RPM between cursors is displayed here in this case 3350 RPM 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 RPM Once cursors are displayed you can move the Left one by simply clicking on a line Hold down the lt Ctrl gt key while clicking on a line to move the Right cursor 117 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Changing titles and legend names Pro version only Many times you may want to customize a graph by displaying and printing lab
131. a slightly more accurate and definitely make the data respond more quickly to changes Changes to this DataMite II spec must be downloaded from the DataMite program to the DataMite II box DataMite Il Recording Segments Is the number of memory segments you want for the DataMite II s memory It s memory segments work as follows The current DataMite II has memory which can be broken up into from 1 to 8 segments This is selectable in the DataMite menu available at the top of the Main Screen Say for example the DataMite s memory has 8000 seconds of recording time available and you select 8 segments Each segment will record for 1000 seconds At the end of 1000 seconds 52 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions recording stops no matter where you are in your dyno testing The Figure 2 15 Sensor and Calibration next time you press the red button to start recording the DataMite II a automatically records in the next segment overwriting any data Screen Engine RPM Channel 1 which was in that segment If there was good data in that segment Also see Fig 2 21a and Table 2 1 that you have not yet downloaded to the PC it is gone If segment 8 was the last segment the DataMite II will start recording in segment 1 for the next recording session Calib 1 Cylinder 2 Stroke When you go to get data from the box in the DataMite software the Engine Specs program shows which segment
132. aMite the Master DataMite specs 50 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions SSeS SSS SSS SS SS a Whenever you start a new test either based on a previous test or starting completely blank the Master DataMite Specs are used Whenever you open an old test file the DataMite specs used for that particular test are used Type Figure 2 14 DataMite Specs Menu Click on File then e Save as My Master DataMite Specs e Open Master DataMite Specs e Print to print this screen Ot co pick he Wipe o Weather Station if any a Data Plite Specs and enter any calibration Back File Current Readings weather Station Cal Subleshoot Help A f ti t fi t th com Tal ETE lee Information to Tine tune the a a weather readings Sampling Rate samples sec Channel Settings Data Name Sensor and Calibration EngRPM 1 Cylinder 2 Stroke Dyno wheel Dyno wheel RPM 1 Magnet Exh 1 Std Thermocouple Exh 1 Head Temp 1 Std Thermocouple Head Temp 1 Analog 3 Std 0 5 Volts Analog 4 100 PSI MSI600 Sensor Analog 5 Analog 6 Analog 7 Analog 8 Std Thermocouple Misc Analog 9 Std Thermocouple Misc Click here to bring up the Baro Pres Std Baro Pres Calibration Humidity Std Humidity Calibration Sensor and Calibration screen for defining each in Help j gs grid to Click on the down arrow button to select the type cb n nel Ae aaa P een Yes and of DataMite you are using You choice here will
133. aMite Specs and the Master DataMite specs which should be the current DataMite setup will be copied to this screen When you back out of this screen you can then keep these Master DataMite specs as the DataMite specs sensors and calibrations which will be used for calculating this test s results 59 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Save As Master DataMite Specs Click on File then Save As Master DataMite Specs and the current settings in this screen will be copied to the Master DataMite specs Do this only if all the current settings in this screen DO match the current settings sensors and calibrations of the DataMite right now and for the near future Remember that the Master DataMite specs will be used for the next test you download from the DataMite Print Click on File then Print to print this screen Figure 2 17c Comparing DataMite Configurations Box vs Program DataMite II Options DataMite Analyzer DataMite Il box has these differences with this configuration Com pare to DataMite II DataMite I Analog Channel 3 is enabled DataMite II Analog Channel 16 is disabled This option compares the current DataMite configuration on this screen to that loaded in the DataMite II box You will get a response as shown in Figure 2 17c Save to DataMite II This option saves the current DataMite configuration on this screen as the Master DataMite specs and then loads this confi
134. ability Your tests may be correct but the tests you are comparing to may be wrong Many dyno operators tend to report numbers higher than are real to make their customers happy 205 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 206 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 4 Backing Up Data Backing up data means to make more than one copy of the data which can be used or referred to at a later date This may be needed in the event one copy becomes lost or erased or you need room in the Test Library Backing up data can take 2 basic forms Paper Reports Copying files with Windows copy commands Other than making Paper Reports backing up data requires knowledge of Windows Explorer commands Unless you are experienced with Windows commands have someone experienced with Windows assist you to prevent losing data Check Appendix 7 page 223 for new One Step Backup and Restore commands Figure A4 1 Print Test Summary iA DataMite Data Analyzer 2 0 Performance Trg Pa per Reports File Edit Graph Report TestConds Engine Data New get data from DataMite Ctrl N If you already keep written copies of all test sessions you perform you already understand this form of backing up data You could continue to a sel aah cuita do this by simply clicking of File the Print at the Main Screen to print a eee CiS summary of each test Save Ki Cirt Open from Floppy Dri
135. ack at the upper left to retum to fad TBs Ve elie Vee bef Sse raven sosea the Main Screen A Test File is actually made up of 3 files 1 The DAT file data file which is the data recorded by the DataMite 2 The CFG file configuration file which is the DataMite and dyno settings engine specs test comments etc This is the file the program actually looks for when you open a test or save a test etc For that reason you will see a CFG after the test name like in the 0 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 RPM Chapter 1 Introduction Figure 1 4 Graph Options Menu Select Data Types in this section Graph Name Engine Accel RPM sec Dyno wheel RPM Calcd gear ratio Clutch converter slip Observed flywheel torque Observed flywheel HP Corrected flywheel torque Corrected flywheel HP l Other Graph Specs Time or RPM Graph What to Graph Filtering Notes Data Selected to Graph 4 types max Corrected flywheel torque Corrected flywheel HP x am100 0003 1 NTa square brackets at the top of the main screen shown in Figure 1 3 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction 3 The LAP file FE lap or run file Figure 1 6 Test Conditions Menu Pro version which the w Test Options DataMite Back Help Analyzer uses Type of Test Dyno Conditions to determine Type Meas Taq HP
136. all additional Main Wheels must be exactly the same as the Main Wheel specs you have entered 66 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 21 Examples of Inertia Wheel Systems side view Sections in Main Wheel 3 Sections in Main Wheel 1 Main Wheels 1 Main Wheels 1 but could be 2 or 3 if other wheels were added Section 1 Main Section 2 Wheels Section 3 Since all Main Wheels must be the same if you say there are more than 1 call this sleeve a component like Misc Component A Its inertia will be part of the system no matter how many Main wheels are used Coastdown Data Pro version only In the Pro version you can also estimate the aerodynamic and bearing losses in the dyno for more accurate torque and HP measurements This is done by letting the inertia wheel coast down from a high RPM to 2 lower RPMs Start a stop watch at a high RPM Then note the time at some significantly lower RPM and then at some much lower RPM The high RPM should be in the high RPM range of your engine testing and the lowest RPM should be in the low RPM range of your engine testing Enter the RPMs and times where the highest RPM will have a time of 0 The program will calculate the HP loss at the different RPMs For small Briggs inertia dynos these HP losses are generally in the 2 to 4 HP range Note that this process may be done automatically in a later version During this coast down
137. ame and enter a phrase or group of letters you want to find in a file name This is available in the Pro version only 223 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS SSeS SSeS SSS Sees We ve bumped up the limit of number of tests which can be picked for graphing in the History Log from 6 to 8 This is available in the Pro version only We ve reduced the minimum dimensions for engine dimensions for more compatibility for radio controlled car specs The program now forces critical Test Setup Specs like Corrected To to some value when starting a new test if they were originally blank If a file which has been set to Graph Yes in the History Log has been deleted the program now sets Graph No in the History Log so an error message does not continue to be displayed History Log is available in the Pro version only We ve added several Email features to be able to email data files reports and graphs to other users These typically work well if you are using Microsoft Outlook or Outlook Express With other email programs you may have to try various options To use these features you must turn on a Preference under the Emailing tab e On the main screen click on File then Email a Test to email a test to another user of the DataMite software or to Performance Trends to help us troubleshoot a problem e In the Graph Screen click on File then one of the Email options to email a graphic file of
138. ample to pick an example engine provided with the program Save to save these engine specs to a name of your choosing Print or Windows Printer Setup to print this screen EA Name of current set of Ena snore LEO I Engine Specs Ford 5 0L Back Fife Help ou give the specs a name Engine Customer amp Comments Engine Customer Example0001 l Short Block Cam amp Heads Typa 4 svoke Bore _ esate Comments lets you a Sinka B Cam Stock Hydraulic Roller describe the engine itself Rod Length 5 09 CR VivDia PotCCs RRato Lash 301 59 cid 4943 1 ccs Chmbr 83 5 ccs Int Most specs in this screen are Block Exh or recording information only Piston amp Rods aes and are not used for any calculations You can enter Fuel Delivery Elec Fuel Injection bd most anything you want or System Stock 550 CFM T B leave them blank Ignition Fuel Setting Stock Processor EEC IY Distributor Manifold Cast aluminum 20 runmers_ Some Short Block specs are used to estimate Engine Spark Plugs AutoLite Headers Stock short tube headers Inertia which can be used to Gap Timing 10 initial e Mufflers Stock full exhaust estimate losses to accelerating Help engine inertia for some dyno Stock 5 0L Mustang 302 EFI Type in most any comment to describe the exhaust system and mufflers if any No entry is required p xx ests See Test Conds Section 2 3
139. an also specify Alternate titles and legend names by clicking on Format at the top of the Graph Screen then Edit Titles Legends e Choose to Save certain results you believe are special and you may want to recall or graph in the future See the Save Figure 3 38 History Log at Graph Screen Click on the History Log button or Menu Command to display History Log DataMite Analyzer v3 2 yam 900 CFG x Back File mat View GraphType AddTest History Log Single Test Help From the Graph SBE SSE SPIE PEI Mer e Screen 2 additional columns are Bi peal displayed corr HP 1 Click in the Graph column to py am 1000 1 Icon Tq add a Yes or corr HP remove a Yes i pyam 975 1 Tests marked Yes i Corr Tq eee to graph are graphed if you p yam 925 1 Corr Tq select Graph i iss Tests Marked 7 50 I j 1 i i I Yes fl Eza i evi a i i i Ssg w Test History Click In the Std Graph Tests Marked Yes Graph Current Test fy Clear erase fistory Print Help Gra ph Title Test File and Path f column to change examplesdyno yam S00 cig r Yam100 0003 01 02 2000 8 92 9800 3 Nexamplesdyno yam 950 cfg y x 1 Yam100 0003 01 02 2000 8 92 9800 the Std Graph examplesdyno yam 1000 ctg yam 1000 Yam100 0003 01 02 2000 8 62 9600 Title Alternate examplesdyno tia cig fia Fiat009 01 08 2001 82 50 1600 examplesdyno yam 975 cig yam 975 Yam100 0003 01 02 2000 8 51 9600 i tit
140. and that 4000 RPM was encountered 4 times each with very different torque readings The 2 graph shows the same test but Just Dyno Run 1 where the program correctly identified the beginning and end of the run by the operator correctly specifying an Accelerating type of run It could have also been done by using the WOT switch setting The 3 graph shows that if you consider all data recorded as the test you get a very strange looking dyno curve If the beginning and end of the test is identified correctly the power curves look exactly as they should 38 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 9e The Effect on Not Correctly Finding the Beginning and End of Dyno Run Graph 1 showing all the data i recorded during a power run Engine RPM which i This could be from improper crosses 4000 RPM fi i i pushing of the WOT wide open i i throttle switch if it was used or improper setting of the Type of Absorber Dyno run 4000 is encountered 4 times during this run each with very different torque values Dyno Torque which is VERY different each time Engine RPM is at 4000 RPM Graph 2 shows the correct a DataMie Analyzer v3 2 Hdis011 CFG Bock Fin Foma View Groph Type AddTes HiteyLog SingeTes Help identification of just the WOT Engine RPM Dyno Torque vs Time the power run 700 8 x 4000 RPM is encountered only once and it is at WOT This is the O
141. as Tq HP from Accel Preview of Test chosen ALCMAG CFG Stroke 3 48 Pk Tq RPM 4750 PISA Heyl Pk HP 421 21 Click on a Test to Black Box 11 CFG ooops E Black Box I2 CFG 310 11 cid 4 Cycle P H6256 choose it for preview Black Box Il CFG Time 8 08 am Date 11 17 2001 Then click the Open Exh CHT temps inertia dyno CFG Example of DataMite Il Dyno Data button to Open it fia cfg Done on Alcohol Injected Magneto sparked p i AB performance data CFG This is an EXTREMELY noisey environment Stock Briggs CFG EMI RFI and shows how well the DataMite II Tests can be saved YAM 1000 CFG can accurately record data including under various Y4M1300 CFG YAM 900 CFG Fold categories folders to ne help you organize YAM 925 CFG a List All Files by File Name are aa a aa large s of tests Click List by File Name include Engine dame to display all on a different name List by Engine include File Name the tests saved here and a different list Files Not Filtered all files listed a of Test Files will be displayed The name Open Filter find Advancew examplesDyno Delete _Add Folder can be c4 at Help Delete he Right click in list above for more Folder Otions changed in the Preferences menu to qe annn loo 1141F most any word Click here to delete the chosen Test ou can Delete or Add new Click here to bring up the Filter Options menu oder names wii hese Duitons here you
142. assis dynamometers User friendly Windows interface compatible with Windows 98 Me XP 2000 and NT Can print results using most any Windows compatible printer black amp white or color Save nearly unlimited number of tests for recall comparison and analysis in the future Allows several reporting and graphing options for analysis either vs RPM or vs time in seconds Added Features for Pro Version e You can also input and or record e Additional dyno details like frictional losses in the dyno system which affect the torque and HP recorded correct for engine inertia effects when running an accelerating test which is all inertia dyno tests dimensions and weights of more inertia dyno components etc e Engine specs like bore stroke head descriptions cam descriptions etc e Additional test conditions like fuel coolant head temp etc Customize printed reports and especially graphs You can include comments for each engine graphed Write ASCII files for importing data into other computer programs Filter find past tests based on certain criteria like Peak HP certain Customer name etc History Log keeps a running log of tests you have recently started new run graphed or reported Comparison Reports of 2 or more dyno runs Ability to save graph and report formats for instant recall of various scales data combinations RPM ranges etc Many additional Preference settings to customize the program Ability to calculate
143. ata includes these types MPH Clutch Slip Tq KPH BSFC HP Corrected Tq Corrected HP Calc Gear Ratio These data types are all based on the settings in the Test Conds DataMite and Dyno Specs menu Check these settings and their definitions in Section 2 3 2 5 and 2 6 If the problem appears with the graphs be sure you are reading the graph correctly Sometimes data types are multiplied by 10 100 etc so data types which are very different can show up on the same plot For example 15 ft lbs of torque may be multiplied by 1000 so it shows up well on a graph which also includes Engine RPM up to 15 000 Use the Cursor option to read the graphs which corrects for the multiplier See page 116 Or make a report of the data type to eliminate the need for any multiplier Calculated data types usually need some filtering If the calculated data looks noisy or jumpy increase the filtering level to Medium or Heavy See Figure 2 46 and 2 47 on pages 96 and 97 and Figure 3 14 on page 111 If the problem is with Clutch Slip check that the Gear Ratio is correct in the Dyno Specs menu See Section 2 6 If torque and HP look too jumpy e The magnets may not be evenly spaced important for inertia dynos e There may be some or even just 1 very minor noise spike in the inertia wheel RPM See Figure 2 46 on page 96 to see how even the most minor noise spike can significantly affect calculated torque and HP e The acceleration test
144. ave entered the calibration for a shock travel sensor you may want to adjust this to read 0 when the car is at static ride height Keep Specs Help Cancel Print Click on Read buttons and program will read signal currently coming from this sensor 214 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 4 Obtain an Upscale Reading Figure out EXACTLY the torque produced when you add the Calibration Weight and its hanger to the Calibration Torque Arm Calibration Torque Calibration Weight x Calibration Torque Arm Length In the example above this would be Calibration Torque 77 4lbs x 1 25feet 96 75 ftlbs Type in 96 75 for the 2nd Value ft lbs torque in the calibration screen Hang the 77 4 lb weight in the Calibration Arm hole that is 15 15 12 1 25 feet out from the center of the dyno Note that the measurements of 77 4 lbs and 15 are just examples Your numbers for your system would likely be very different Then click on the Read button for 2nd Value Volts and the program will read the signal from the sensor with 96 75 ft lbs of torque It will store this reading as the 2nd Value Volts where you can see it 5 Save the Calibration In Figure A5 6 C you will note the calibration shown at the top of Dyno Tq 524 4 356 0 5v 0 96 75 Dyno Tq This is the information the program will use to figure out how much torque is produced from a certain sensor signal Click on t
145. bar at the Preferences top of the Main Screen to bring up the Preferences menu shown in Figure 2 8 There are 5 categories of Calculations OK settings which you select by clicking on the different tabs Here you can adjust some program items to personalize the program for your needs Operation Graphing Printing Preferences may also save time by eliminating steps Cancel you don t require When Getting New Data from DataMite f Automatically Edit Out Noise No 7 The 6 Command buttons on the right side are also discussed at the end of this section Display Run Summary Yes Help Check Appendix 7 New Features in Require Engine for New Test No Version 3 7 for several new Preferences which have been recently added Warn if Run Type Not Dyno Run Yes Auto Check Other Com Ports Yes x Specs for RPM Graphs and Reports Main Screen Tab User Sets Increments Filtering 50 RPM in Grap x Allow Resize of Current Readings Yes Main Screen Graph Lines Enable Optical Isolator Power No 7 This option lets you choose the line thickness of the summary graph of Torque and HP for the current run of the current test file displayed on the Main Screen Main Screen RPM Increment This spec lets you pick how often you want RPM data reported on the Main Screen much like the similar spec for Reports The smaller the number the more data which is reported the longer the list of torq
146. be selected in the Preferences Menu Section 2 2 Check the Preferences to adjust several aspects of this graph like scaling using 2 different torque and HP scales etc If you click on a graph line in the Summary Graph that particular data point will be highlighted and displayed in the Test Data Grid This is a quick way to find data points which may look unusual or be important like peak torque or HP 2 1 4 Test Data Grid Point The point column simply numbers the rows of data and is used by the program to identify a row of data for messages RPM Is the RPM for this row of data The increment of the RPMs can be selected in the Preferences Menu Section 2 2 Torque HP This is the corrected Torque and HP numbers for the corresponding RPM This data is corrected for weather conditions and for any inertia effects as indicated in the Test Conditions menu This number is averaged for all the RPM data which is closer to this RPM than the RPM above or below it For example if the RPMs are 5000 5250 5500 etc the torque and HP numbers given at 5250 RPM are for all RPMs from 5125 to 5375 RPM 2 1 5 Main Screen Commands The next section discusses some of the commands available at the top of the Main Screen Most will not be discussed here in detail as they are discussed in other sections of this manual File See Figure 2 6 for File Options New get data from DataMite Click on File then New to start a new test This process
147. being used octane vapor pressure fuel brand etc This entry is for information only No entry is required 33 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Correction Factor Correct To Click on down arrow to select the type of correction factor you want to use for corrected Torque and HP Std Race Dyno corrects to 29 92 Hg 60 deg F dry air which is typical of most aftermarket and race dyno runs you will see in the United States Std SAE corrects to 29 6 Hg 77 deg F air with 49 deg F dew point humidity and is what most new car engines are rated to Correct for Eng Inertia Effects Click on down arrow to select if you want all torque and HP numbers corrected for the engine s inertia effects when the engine is accelerating Just as the inertia dyno absorbs torque during an acceleration the engine s internal inertia crank engine flywheel etc absorbs torque which does not pass through to the dyno This correction if set to Yes attempts to produce torque and HP numbers you would see during a steady state or step test Test Vehicle Summary If you have specified your dyno as a Chassis Dyno in the Dyno Specs this section will be part of the Test Conditions screen This small section lets you save open previous delete calculate or calibrate several factors for vehicles on your chassis dyno These inputs are used primarily to determine the ratio between Engine RPM and Dyno Roller RPM Thes
148. ble in the Pro version only e We ve added an option for Engine RPM channel with DataMite II to turn the active filtering OFF This can help with rough running engines or if certain ignition systems produce erratic Engine RPM data e We ve added the ability to start and stop recording of DataMite II with keyboard or mouse or external switches This is available in the Pro version only e We ve added the ability to update DataMite II firmware from inside the DataMite program This is done under the Troubleshoot menu item in the DataMite specs screen only shown if the logger Type is set to DataMite II We ve added a command of Copy Calibration to Another Channel This is available in DataMite specs by clicking on File at top of the DataMite Specs screen You will be asked which analog calibration do you want to copy and to which analog channel you want to copy it to We ve added a Preference for Using Divide by 2 IPU inductive pickup Divide by 2 IPUs have been used on odd fire engines like Harley Davidsons Very few users should set this to Yes Now program allows for writing a debug file for Black Box II DataMite III USB DataMite Mini USB communications if directed to do so by Performance Trends We ve made several modifications to allow for 60 000 Engine RPM This is especially need for radio controlled car engines This is available in the Pro version only We ve added the Correction factor to many sensor
149. chevy 2076 J Back Fie Fome View Gughtype AdiTen Heteylog Mapi Tests Heb ede eee e TT eE ee sea Exh 2 DegF Exh 4 DegF Exh 6 DegF Exh 8 DegF Exh 1 DegF vs RPM All 8 exhaust gas temperatures EGTs vs RPM s 3 chevy 2 CFG Back fie fome Vew Gughlype Adilewt Matoylog Magie Tests Hep Fil Ss SIDS OIC OR es P AFR D AFR oil Pressure Fuel Pressure Vaccum Corr Tq vs RPM 700 0 Passenger side and driver side A F oil and fuel pressure and intake vacuum with Corr Tq amp HP vs RPM iF ES i Halo Log Multiple Tests Help EE REE ere Water Tmp DegF Oil Tmp DegF Eng Intake Air DegF Corr Tq vs RPM Oil water and inlet air temperature with Corr Tq amp HP vs RPM 181 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Conclusions e The 31 channel DataMite II has some differences from the Black Box II but most of the steps to running a dyno test are the same e The process of setting up the software and running an absorber dyno test is different than an inertia dyno These differences are explained in this example e There are several ways to mark the beginning and end of an Absorber Dyno test Two methods are demonstrated in this example e The 31 channel DataMite II allows for recording many more data channels like A F many temperatures and pressures etc 182 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples
150. cs for the new test are listed here at the top Click here to start saving or downloading rom the DataMite Il recorded data Click here to see the current Dyno Readings and start recording data Save Data Ctl N Cancel don t start new test lt Esc gt Curent Meadings Weather Help N Operator p En Folder File Name for for New Pick eNe 5 Name for cid New Test Test Test New Test black box i1 CFG STAN DRY8D214945 examplesDyno Meas Tq HP from Pick Which Specs to Keep based on current file black box ii CFG DataMite See Specs Type Black Box II w Starting a New Test Dyno See fpecs ertia Dyno 69 9 Ib x ft 2 Engine Sed Specs Keep this box checked if you want to copy the current test s Engine Spetstethe New Test Test Conds See Specs Leop this box checked if you want to copy the current test s Test Conditions to the New est Test Comments Keep this box checked to use comments below for the New Test Note that you can erase and change these comments here EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST PIPE Onte a New Test i started you can easily erase or modify any of the specs listed above Ani specs not seldcted to Keep will be mostly blankAwhen you start the New Test These are the comments which you can modify Uncheck Test Comments to start ith blank comments for the New Test A summary of the current settings is given here Click on these buttons to see the current Engine or Test Co
151. current settings for these critical specs e In the Pro version you have additional dyno specs for improving the accuracy of the data One of these options lets you load in data from a coastdown test of the dyno system to measure frictional losses in the system and make corrections for them e An Inertia Dyno test is outlined as 6 basic steps e To perform a test click on the Start Dyno Run button at the top left corner of the Main Screen e You should check the raw recorded data for noise spikes and general data quality e Once you are confident the raw data is good you can better trust the torque and HP numbers calculated and produce graphs and reports 159 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 160 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Example 4 2 Analyzing Dyno Data Suggested Background Reading e Example 4 1 e Most all sections of Chapter 3 about making reports and graphs Sometimes you may want to just see how an engine is running if the torque and HP peaks are where they should be and the engine is putting out the torque and HP it should This was outlined in Example 4 1 Other times you want to make more detailed analysis of a particular dyno run and compare the dyno run to other runs This could be to check the effects of a modification This process will be shown in this example We will look at the Yamaha 2 stroke engine tests in the Examples fol
152. d be designed to work with metal and ceramic We recommend epoxies which are 2 parts which must be mixed including Ace Hardware 5 Minute Epoxy Duro Master Mend 5 Minute Epoxy Mount on Side magnet Devcon High Strength 5 Minute Epoxy of Inertia Wheel Inertia Wheel When locating the magnets be sure they are evenly spaced Apply epoxy and press into place then apply tape until set Evenly spacing the magnets insures more accurate less noisy RPM data For doing acceleration tests it is critical that the magnets be evenly spaced for accurate torque and HP results Most of the time operators just use 1 magnet on the dyno to avoid this spacing issue 1 magnet is always evenly spaced However with 191 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSeS eee LEE eee only magnet the Black Box II and DataMite II s RPM measurements are not possible below around 400 RPM Note The spacing issue is not as important with the Black Box II and by selecting Dyno RPM to come in on Frequency Channel 4 and setting the Calculations Preference of Use Higher Resolution Dyno RPM to Yes You must fabricate your own brackets to allow adjustment of the sensors from 050 to 200 from the magnets See Figure A2 1 B For Stuska dynos we have special adapters which go between the dyno and the mechanical tach to make the RPM sensor installation fast and easy Tips for brackets e The brackets must be sturdy either thick metal o
153. d by clicking on Format then Grid Style Pro version only Data graph lines The style and thickness of these lines can be changed by clicking on Format then Line Style ertical Y axis The scaling of this axis can be easily changed as described in this section 109 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples The Graph Menu is shown in Figure 3 13 It is very similar to the Reports Figure 3 13 Graph Options Menu menu in that you select what Data Types you want to graph from the list at Graph Name Ea the top Click on a Data Type to select or click on a selected Data Type to Enos REL APHIS de select it Dyno wheel RPH Calcd gear ratio Clutch conyerter slip Observed flywheel torque Data Types Observed flywheel HP Corrected flywheel torque The Data Types you can select are listed and defined in Table 3 1 on page Corrected flywheel HP 103 Up to 8 Data Types can be selected for any graph Other Graph Specs Time or RPM Graph Other Graph Specs What to Graph Time or RPM Graph deste p Notes Click on the down arrow button to choose either RPM or Time for the Da o to Graph 4 types max horizontal X axis of the graph MPH and KPH are also available for Corrected flywheel torque Chassis Dynos Corrected flywheel HP What to Report Select what part of the dyno test you want to make the report of Maka Bami Het Cancel Print All Data Just Power
154. der which came with the program These tests were run with a 1 4 inch change in the length of the exhaust flex which is a section of exhaust pipe before the expansion chamber First you will want to make one of these Yamaha tests the current test If you had just downloaded one of these runs it would be the current test If you had run these test several days ago you may have to open one of them from the Test Library to make it the current test Click on File then Open from all saved tests to open the Yamaha test with the 10 length of exhaust flex See Figure 4 23 Figure 4 23 Opening a Past Test Click on File then Open from all saved tests to bring up the Open Test File screen shown here Name of Current Test you are working with JA Dzabite Data Analyzer 2 0 Performance Trends STKBG501 CFG Edit Graph Report TestConds Engine DataMite Dyno Preferences Click on test file ou want to Run 1 y Open Test File Test amp Eng 5 Tests in Library hosen File yam 1000 cfg Preview shows 2 577 Bore a summary of T Preview ete Sues J Engine Yam100 0003 Type of Run Meas Tq HP from Accel nu Click here a7 Bore 2 047 Pk Tq 8 40 yam 975 cfg Stroke 1 815 Pk Tq RPM 9250 Cyl 1 Pk HP 15 69 5 97 cid 2 Cycle Pk HP RPM 10000 Time 5 19 pm Date 01 02 2000 Click on Open z o open this test List All Files by File Name ile List by File Name include Eng ip Click on a j C List by Eng
155. desktop icon Each time you start the Dyno DataMite Analyzer the program will put you back to precisely where you were when you last quit the program displaying the same Current Test as when you shut down When you first get the program this will be for some test Performance Trends was working with at the factory You should obtain a Main Screen as shown in Figure 4 2 where Black Box II is the Current Test If this was not the Current Test you could click on File then Open from all saved tests and Open the Black Box II test You want to start setting up the software with a test which uses the same type of DataMite as the one you purchased For example you do NOT want to start setting up the software for a Black Box II using an example file for the 30 channel DataMite II Figure 4 2 Main Screen Pro version Black Box is the current dyno test A Dyno DataMite v3 2 Performance Trends Setting Up CFG Fie Edit Graph Report TestConds Engine DataMite Dyno Preferences Help Start Dyno Run Ani 1 Test amp Engine Conditions Click on Dyno to set up Dyno Specs to Test Comments 2560 Bore E13 am 02 25 2005 EXHAUST TEMP PROBE ITMUEFLER NOT EXHAUST PIPE Help Cick onone oftke Tabs match your inertia dyno measurements te t t 2 437 Stroke PkTq 9 82 3000 tierce land settings 254 cid 4Cycle PKHP 6 59 5000 1 056 Corr Factor Operator STAN PN Test Data corr to 29 92 7 60 deg dry a
156. e or simply leave them at their default names of Eng RPM Chnl 2 and Chnl 3 For the Sensor and Calibration descriptions see what is outlined in Figure 4 5 When you are finished click on File then Save as Master DataMite Specs to save these changes Then click on Back to close the DataMite Specs menu You will probably be asked if you want to keep these changes for the current test BLACK BOX II Since they were not the DataMite specs for that test answer No Now when you start a New Test and download data from the DataMite these Master DataMite specs you created and saved will be the ones used for determining what channel is recording what 144 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 3 Save the Example File to a New Name Using Save As Click on File then Save As w Save a Test File A Dyno DalaMite v3 2 Performance Trends b aph Report TestConds Engine Data FS Ctrl N Ctri 0 New Folder Name CtreS ae OK Cancel Enter a New Test Name and click on MK The current Test name is given should you choose 6 modify it slightly for the new name Use the Del te key to erase New Test Name Folder Name Open from Floppy CD Drive A amp Drive Save to Floppy CD Drive A Drive Search For find Runs Print this Main Screen Ctrl P Print Other Screens Windows Printer Setup Unlock Program Options Transfer Program to Another Computer Choose the
157. e Total Gear Ratio to bring up the calculation menu shown in Figure 4 6 There you can enter the teeth on the engine and inertia wheel sprocket to come up with the gear ratio of 4 Checking Data Signals 147 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Now that you ve configured the software for the DataMite Black Box II and dyno you are using its time to check out the signals from the sensors This is done by clicking on Current Readings at the top of either the DataMite or Dyno screens as shown in Figure 4 7 Figrue 4 7 Checking Signals in Current Readings Screen Engine Not Running i Current Readings Close back Options Trace Recorder DataMite Commands Help EngRPM Dyno wheel Roma 78 61 Head Temp 1 600 0 Exh 1 Install Optical Isolator for this screen to avoid possible computer damage Exhaust Thermocouples l Current Sensor Readings EngRPM 1 5 9 n a 1 Humidity Cylinder 2 Stroke Dyno wheelRpm 6 D jg 1 319 Box Temp You do not need to run the engine to check most signals Notice how both temperature readings are very close to room temperature as they should be if the engine has not been running The Box Temp for the weather station meaning the temperature inside the Black Box II where the relative humidity sensor is is also very close to room temperature Tip To check which sensor is being read by t
158. e are especially important if you have selected the Dyno Type of Chassis Dyno No Engine RPM in the Dyno Specs screen If you are measuring the Engine RPM like with an inductive pickup then these settings are used only to determine Clutch Converter slip Figure 2 9a Test Vehicle Description Type in a Vehicle Description like customer name vehicle type etc or pick from a list of l Test Vehicle Summary Descriptions you have saved Description Fiat Drive Tire Radius 10 5 _ cie These 3 buttons let you save open or Trans Gear Ratio Em measure calibrate the settings in this section Final Drive Ratio ko gees n Or you can click on the Clc calculate buttons to calculate these Ve Eel inputs from other info like P Metric Tire Size P225 60 15 Description 34 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions This is just a name you can use for these 3 settings If you choose to Save these settings this will be the name used for recalling these settings in the future If this Description is in the list of saved descriptions then the program will ask you if you want the saved settings recalled and used Drive Tire Radius This is the distance from the center of the wheel tire to the dyno roller This can calculated by clicking on the Clc button See Figure 2 9b Trans Gear Ratio This is the ratio for the transmission ratio used for the test
159. e dyno gauges and make your run When you are done you can click on Back at the upper left corner to be brought back to the New Test Screen If you recorded some data when you were at the Current Readings screen you can choose to 1 Save this data if you are using the Black Box II DataMite III USB or DataMite Mini USB 2 Download the data from the DataMite II and save it Figure 2 7a shows the basic process 19 C Performance Trends Inc 2005 20 Dyno DataMite Analyzer Figure 2 7a Starting a New Dyno Test Chapter 2 Definitions First you will directed to the Current w Current Readings Close back Options Trace Recorder DataMite Commands Help Not Recording 6000 2345678910 Exhaust Thermocouples 6000 0 Install Optical Isolator for this screen to avoid possible computer damage Current Sensor Readings MIET __ 2 4444 Pore wheel Fom sf 3 faas E 1 7 4 216 jan 8 z 1918 22 fund 1475 21 P Temp Baro Pres ia Starting a New Test Save Data Ctrl N Cancel don t start new test lt Esc gt Help Operator p Eng T oe ae for New Fick fa Nen Name for _Add TES oi Tas Test Test New Test DAVED21 4946 _ examplesDyno Y Meas Tq HP from FG eep based on current file black box it Current Readings Weather Folder File Name for New Test black box i1 CFG al Pick Which Specs to DataMite Type Black Box
160. e tabular test results of a report for a permanent hardcopy by clicking on Print in the menu bar or the Printer icon The menu of options shown in Figure 3 25 will appear Check the options you want to use for the printout by clicking on any or all of the Option boxes All options and buttons are discussed in this section Figure 3 25 Printer Button and Print Menu Command Options Report Screen T DataMite Data Analyzer 2 0 Performance T Click on Print or the Printer button Report Types File Help F1 shown hidden here for the Printout Options menu shown to the right Print Results Ctrl P This options lets you choose the printer indows Printer Setup or printer driver being used by Windows and also page orientation w Print Reports Options Ed bse gedaan these Test Results Report Options Rae INCM CICHON oe his button to print the x Include Test Conditions current report with these X Include Engine Specs options x X Include Test Comments IX Include Test a Stee X Include DataMite Specs X Include Dyno Specs Larger Fonts prip Print Report Using These Specs Tip Close See page 141 in manual for more info Test Results Report Options Include Test Conditions Include Engine Specs Pro Version Only Include DataMite Specs Include Dyno Specs Select these options if you want all the specs from these menus printed with the report This will add 1 2 pages to the printed report 123
161. e test file name and select Copy Note that each test file is made up of 3 files a CFG a DAT and a LAP file All 3 files must be copied for the dyno test run to be copied For example if the test file in question is called Briggs04 you must copy the Briggs04 CFG Briggs04 DAT and Briggs04 LAP files You can also copy individual test files to the floppy drive inside the Dyno DataMite Analyzer program Open the file you want to copy so it is the current test file Then click on File at the top of the Main Screen then select Copy to Floppy Disk This command takes care of all 3 files mentioned in the previous paragraph automatically More experienced computer users may want to use the Backup features built into Windows click on Start Programs Accessories System Tools Backup This compresses test files so it takes fewer floppy disks However you need to use the Backup program to restore test files which can be more confusing to novice computer users In Version 3 7 these files are stored in the C Program Files Performance Trends Dyno DataMite v3 7 folder Also check Appendix 7 New Features in Version 3 7 for info on backing up and restoring data with just a couple of keystrokes Restoring Data Be very careful when restoring data as you may overwrite Test Files with old erroneous information Read all the information below before restoring data If you are not familiar with Windows Explorer have someone more experienced help
162. eas Tg HP fram Dyno Custom no L ps Runs Radio Coast mno P Correction Factor Correct To Std Race Dyno 29 92 60 deg F v Corect for Eng Inertia Effects Yes v Click on down arrow to select the type of test you Corr Barometer Hg Air Temperature deg F Relative Humidity Here s a graph of a typical coastdown run of dyno RPM coasting down vs time Coastdown testing is only available and only makes sense for inertia dynos chassis or engine Fagan Ena TRA fan This choice can have a large impact on what You can force a reanalysis of an old coastdown test b A Dyno DataM e ides opening it and clicking on 9 The results from your Coastdown Test are First RPM 1269 at 4 90 sec currently 1400 at 0 sec Second RPM 904 at 118 50sec currently 1050 at 110 sec R determine Beg End of Runs Edit Out Noise Spikes Dyno Specs Back File Torque Measurement Est Required Inertia Current Readings Help Sections in Main Wheel ofMain Wheels v Inside Dia Outside Dia Width len Weight Ibs Material Inertia Total ize 16 sea z Inertia Dyno Specs Main Wheel section 1 Main Wheel section 2 Main Wheel section 3 Main Shat Include Brake O Include Clutch O Include Misc Component A O Include Misc Component B O Include Misc Component C O Include Misc Component D If you choose to keep the settings you will be presented with the D
163. ecs Analog Sensor Specs 1st Value Engineering Units 1st Value freq hz Read L 2nd Yalue Engineering Units 2nd Value freq hz Read TC Corr add this to Read l Note Pick the location of the sensor and of magnets or targets if a different type of sensor is being used on the rotating component 1st Value counts 1st Value Engineering Units si Read 2nd Value counts Correction 2nd Value Engineering Units Co Signal Based On z A Correction is possible for minor adjustments if you ve turned this from factory sensor The r an adjustment after or example after tion for a shock on in Preferences fo adjust this to read e height Keep Specs Help Cancel Print every revolution like a 2 stroke so call a Briggs a 1 Cyl 2 Stroke Keep Calib Help Cancel Print Keep Specs Help Cancel Print Enter any calibration numbers you got with your Black Box Il typically a number only for the Barometer sensor If it is a negative number be sure to include the minus sign in front ia Weather Station Cal Specs 0171472005 Calib Data from Calibration Factors Barometer Temp e o Humidity Choose to enter Master Calibration specs Note Enter the numbers from the Calibration Sheet or Calibration Sticker on the bottom of the Perf
164. ecs to calculate Tq and HP and analyze results Test File GrRato44 The program keeps Separate records of your Master Dyno Specs the specs describing the Dyno you are currently using These Master Dyno Specs are used henever you start a New Note that the Dyno Specs for a particular test may not match the Dyno you are currently using the Master Dyno Specs C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 20 Dyno Specs Menu for Inertia Dyno Pro Version Click on File then Save as My Master Dyno Specs Open Master Dyno Specs e Print or Windows Printer Setup to print this screen Click to check or uncheck these components to have them included or omitted from the inertia calculation ia Dyno Specs BZ Back File Toue Measurement Est Required Inertia Current Readings Help Sections in Main Wheel fi x of Main Wheels v Inside Dia Outside Dia Width len Weight Ibs Material 25 fd Steel Inertia Dyng Specs neria Total Main Wheel section 1 Main Wheel section 2 Mair Wheel section 3 Mai Shaft Include Brake Include Clutch Ocat Include Misc Component 1 25 Include Misc Component B 7 25 Include Misc Component C Include Misc Component D 5 9 fess _ Jm _ s p l Other Specs Select parts with different Wheel RPM 1290 1010 thickness in main wheel or Time sec oo Bo 180 main roller on a chassis see 13 OF
165. elerate to ending RPM close throttle stop recording The program will find the exact beginning and end of test 3 Load dyno open throttle at either high or low RPM start recording accelerate or decelerate to ending RPM stop recording close throttle All data recorded is the test There is a 4 method It is if you have set a channel in the DataMite settings screen to be a WOT switch Then you will start data recording get the engine at WOT and the dyno loaded to do either the decelerating or accelerating type of test manually press a switch or have the throttle activate the switch when WOT perform the test then release the switch then stop data recording Now everything recorded with the switch activated is considered the test Background You may be wondering why it is so critical to get the beginning and end of the test determined so accurately That is because you do not want part throttle data mixed in with WOT data For example if you are looking at dyno data from 2000 to 6000 in 500 RPM increments all data recorded during the test from 3750 to 4250 RPM is averaged together to come up with the exact reading at 4000 RPM If all data during the test from 3750 to 4250 is WOT this is a very accurate way of doing things However you may have been at 4000 RPM several times during the coarse of the test not always at WOT See Figure 2 9e where approximately 25 seconds of data was recorded The first graph shows All the Data of the test
166. els of your choice Click on Format and then Edit Titles Legend to bring up the menu shown in Figure 3 21 which will allow you to do this Figure 3 21 Menu to Edit Title and Legend his is the list of Standard names the program uses unless you click on the Use New itles button below Select click on a Standard name you want to change The Standard Name appears in the edit box along with the current New name if there is one Once you have selected a name from this list that row will be highlighted it is easier to use the up and down arrow keys to select the next item to edit than clicking the item with the mouse his is the list of New names the program will use if you click on Use New Titles If a title in the List of New Names is blank the program will use the Standard name w Edit Graph Title and Legend List of Std Names Title Corr Tq Corr HP Exhaust Comparisc Grp 1 1 10 Exhaust Flex Icn l Corr Tq Tta Zz Corr HP Standard name from row selected Tip as 3 New name for you to edit Other options Click on the item in the list above you want to modify include clicking on the Copy Std Name to and any New name appears below You can modify Then use the up and down arrow keys to move New or Blank Out New Name buttons Std Name Being Replacec New Name to be Editte am100 0003 1 10 Exhaust Flex Click here to close this menu and use Copy Std Name to New Blank Out New Name he New names you have
167. en starting a New Test it is usually best to first Open a previous test which is similar to the New Test you will be running similar Engine specs similar Test Conditions and Similar Test Comments This previous test will then be the pattern or template for the New Test and will save you from having to type in many specs to describe this New Test This also ensures consistency between your tests and reduces the possibility of errors Important The DataMite Specs and Dyno Specs for the new test will be from the current Master DataMite and Dyno Specs which Should match your current DataMite and Dyno setup This will be the same no matter what previous test you start from If the current test is not a good pattern for this new test you can abort starting this new test by clicking on Cancel don t start new test at the top of the New Test screen Then click on File at the top left of the Main Screen and select one of the Open options to open a past test to serve as a pattern If you want to check some of the specs in the other screens or want to modify some specs from the previous test click on the See Specs buttons for each category of specs Click on Help at these menus for more info on how to enter these specs When you close out these menus you are brought back to the New Test screen Be sure to check the check box at the left for all specs you 88 Figure 2 40 New Test Menu 5 Critical spe
168. engine RPM from dyno RPM should engine RPM be faulty or missing completely Ability to save sets of Vehicle Specs for easy recall on Chassis Dynos Ability to calibrate calculated Engine RPM from dyno RPM based on vehicle specs or actual readings for Chassis Dynos Ability to specify either accelerating or decelerating dyno runs for absorber dynos C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction Please read Sections 1 2 Before You Start and 1 3 A Word of Caution before you turn on the computer Then try running the program following the guidelines in 1 4 Getting Started and 1 5 Example to Get You Going When you feel a little familiar with the program take time to read this entire manual It will show you all the things you can do with this powerful tool We are constantly updating this software as user s have new requests for features and as we develop new electronics Check Appendix 7 for recent changes Also check our website for the very latest information at www performancetrends com C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction 1 2 Before You Start What you will need e Windows compatible computer running Windows 98 Me XP 2000 NT or Vista e 256 Meg of RAM e Approximately 10 Megabyte of disk space More is required for storing large s of tests Many terms used by the Dyno DataMite Analyzer and this user s manual are similar to terms used by other pub
169. engine and dyno once the clutch is locked up In the DataMite specs you will use Channel 1 as the Engine RPM and one of the other frequency channels as Dyno Wheel RPM The Gear Ratio you enter here is then used only for Clutch Slip calculations Because both engine and dyno RPM are being measured if this gear ratio is in error the torque and HP calculations are correct Clutch Slip calculations will be in error If you have selected to Correct for Engine Inertia Effects in the Test Conditions screen there will be some error because the program uses the gear ratio on this screen to estimate the engine inertia effects but this is typically small Engine no clutch This is typically used for small engine inertia dynos where either the Engine RPM or Dyno Wheel RPM signals are missing or of poor quality In the DataMite specs if the program finds a Dyno Wheel RPM then the program will calculate the Engine RPM from the Dyno Wheel RPM and the gear ratio in this screen If the program does not find Dyno Wheel RPM no Sensor amp Calibration set to Dyno Wheel RPM or Dyno Wheel RPM is set to No blank in the Used column then the program will calculate the Dyno Wheel RPM from the Engine RPM and the gear ratio in this screen These 2 options are used for calculating torque and HP vs RPM If you graph the RPM channels say versus Time you will see the actual data coming in on that channel The actual readings are also shown o
170. entered here New names have been left Copy All Std to New Names Blank Out All New Names blank the Standard name will be used Use Std Titles Use New Titles Cancel Help 118 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Changing the scales Many times you may want to change the scale of the X or Y axis This may be to show an area in more detail or to match the scales of a previous graph The program has several ways to change the scales as shown in Figures 3 22 and 3 23 Figure 3 22 Changing Scales for the X or Y Axis Clicking on these buttons zooms in or zooms I out on the graph either vertically or horizon Clicking on these buttons shifts the tally Hold down the shift key while clicking on graph left right up or down Hold down them and the graph moves farther each step the shift key while clicking on them and the graph moves farther each step Click here to restore auto scaling That is where the Back File Format View Graph Type AddTest History Log sina NeN Help E a eee nat He A llel Lelle befoP eT t ruven serscaed detail yvam100 0003 1 C You can use the mouse to yam 950 1 outline an area to be zoomed Corr Ta j Corr HP in on Simply click on the mouse key in the upper left corner of the area then hold the key down and drag the mouse to the lower right corner of the desired area A box will be drawn as shown When you release the mouse key this area wil
171. er Calibration for all Future Testing Troubleshoot These options let you troubleshoot problems you may be having with your DataMite or DataMite II Usually you will be requested to try these from a Performance Trends technician when doing diagnostics These are covered in Appendix 3 in Troubleshooting Help Click on Help for help on this screen 61 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 62 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 63 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 6 Dyno Specs The Dyno menu tells the program what type of Dyno you have and how you measure torque In the Pro version you can also get into more details describing the dyno and any power losses in the system to make the torque and HP measurements more accurate The entries in this screen are critical to accurately recording data Also check Appendix 7 page 223 New Features in Version 3 7 Master Dyno Specs Figure 2 18 Typical Note on Master Dyno Specs Settings DO NOT Match the Master Dyno Specs A critical concept for Dyno Specs is the idea of the These Dyno specs were used for the current test Master Dyno Specs When you download data from the DataMite you are using a particular Dyno GRRATO44 CFG Setup When you save the dyno test the program saves a copy of the Dyno Specs with the test Lets call this test Gr
172. er Chapter 2 Definitions Exhaust Valve Diameter Enter the diameter of the Exhaust valve in inches This number is not used for calculations and no entry is required Exhaust Port Volume Enter the volume of the Exhaust port in CCs This number is not used for calculations and no entry is required Exhaust Rocker Arm Ratio Enter the ratio of the Exhaust Rocker Arm This number is not used for calculations and no entry is required Exhaust Valve Lash Enter the Exhaust valve lash in inches ex 018 This number is not used for calculations and no entry is required Intake amp Exhaust Fuel Delivery Click on the down arrow button to select the type of fuel delivery system This number is not used for calculations and no entry is required Carb Type in most any comment to describe the carburetor s No entry is required Fuel Setting Type in most any comment to describe the jetting power valve injector duty cycle pill size pump etc No entry is required Manifold Type in most any comment to describe the intake manifold and spacer plate No entry is required Headers Type in most any comment to describe the exhaust headers or manifolds No entry is required 46 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Mufflers Type in most any comment to describe the exhaust system and mufflers if any No entry is required Menu Commands The menu bar at the top provides fo
173. erally Engine RPM or Dyno RPM are best Delete Beginning or End of File This option lets you delete portions of the recorded data and keep some main section This is useful as it can create smaller data files saving disk space on your computer or saving time when doing calculations for graphs or reports If you save each kept portion to a new file name you can actually use this command to break up 1 data file into several smaller data files This can make it much easier to compare one run of a test to another run of the same test if instead each run is a separate test Figure 2 42 Cut Beginning or End of File Screen showing cutting 1 run from a test with 2 runs Click on OK keep w DataMite Analyzer 2 0 REEDOS CFG this section if you OK keeprthis section Cancel Erase Outline Help want the outlined Help Click and Drag Mouse to outline the portion of test to be kept Then click on OK keep this section to keep only the section outlined Click on Erase Outline to erase the current outline so you can draw the outline again section of the test to Engine RPM vs Time yarn 00 0003 all be saved wee Engine RPM Click and drag mouse to draw a frame around the part of the test you want to keep DO NOT try to start or stop the frame at the exact start or end of the test run Leave some data at least 3 seconds at the beginning and end so the program can find the start and Mimer geg end itself e
174. ere changes the labels in the table 57 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Sensor Calibration Table Button Commands The 6 buttons below the table let you move delete reorder and insert blank rows in the table To tell the program which row to work with the blinking cursor must be in that row To place the cursor in that row click on either the Data or Volts box in the row The Read DataMite button will read the data from the DataMite channel you are currently calibrating and load the results with the appropriate scaling into the row with the cursor The process of actually performing a calibration is somewhat involved and is outlined in Appendix 5 Calibrating an Analog Sensor DataMite II Black Box Il DataMite USB Analog Channels The analog channels for the DataMite II are calibrated much the same way as for the Analog Converter channels described above However there are these differences The first 16 analog channels are configured in the DataMite II box s hardware as either e Not Used no electronics installed for these channels e Thermocouples special sensors for recording temperatures e Analog A jumper inside determines if the channel is 0 5 or 0 10 volts which is most always set to 0 5 from the factory These 16 channels are broken down into 4 groups of 4 channels The 4 channels of each group must all be the same either Not Used Thermocouples or Analog channels I
175. esistor or suppresser spark plugs and plug wires Some kart engines have suppressor spark plug boots which help also Also check that the spark plug gap is proper and the spark is not arcing somewhere for example around a fouled plug Running the engine in the dark can show up arcing plug wires Try to position the tach signal lead and any other DataMite cables away from the plug wires other ignition components etc Position the DataMite away from the engine and ignition system If the noise problem still persists try tach signal lead and or possibly the leads to the other sensors Wrap with aluminum foil or cable shield available from electronics stores and attach a wire from the foil or shield to a good engine or battery ground If necessary ground the engine dyno stand to a solid ground source like a ground rod or cold water pipe Make sure the engine is well grounded to the dyno frame This would mean a large ground strap which connects to a bare metal spot on the frame or back to the solid ground mentioned above Note Grounding is typically not a problem unless you are encountering lots of noise spikes Data Looks OK but Too High or Too Low 203 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS SSS SSS a O EEE If engine RPM looks like it is exactly half a high one third as high three times too high etc as it should be read the definitions for Cylinders and Engine Type on page 55 The DataMi
176. etter place to start if Example 4 1 looks complicated The results shown in these examples may be somewhat different than what you obtain with your particular version of the program That is due to minor upgrades in the calculations in later versions 141 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 142 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Example 4 1 Installing the DataMite on an Inertia Dyno and Running a Test Suggested Background Reading e Section 1 5 Example to Get You Going e Appendix 2 Hardware Installation and Operation This example demonstrates the basic steps to installing a Black Box II on an Inertia Dyno setting up the program s specs for an Inertia Dyno and running a dyno test This example will be very thorough so all possible steps are presented You may decide to omit some steps Although this example is for a Black Box II the DataMite III USB and DataMite Mini USB operate in a very similar manner Check Appendix 7 for info on these newer loggers and the Quick Start Guide which comes with your logger on information about your particular DataMite system Black Box Il Installation Figure 4 1 Black Box II Inertia Dyno Package Example 4 1 will be fairly long covering the entire process of getting and analyzing data We will assume you have installed the Black Box II as outlined in Appendix 2 It is recommended to mount the Black Bo
177. ew formatted disk in the floppy drive Then right click on the Floppy Drive icon and select Paste from the list of options You will see the floppy drive light come on as the entire DTMDATA folder and all its contents are copied to the floppy disk Label this disk with something like DTMDATA folder xx xx xx with a name and date 208 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices DE a SS a a a Notes If you have so many tests in the Test Library they may not all fit onto 1 floppy disk Windows Explorer will tell you this and ask you to insert another new formatted disk If this happens be sure to label all disks with a name date and sequential s and keep the entire disk set together A suggestion for novice computer users is to make each folder under DIMDATA a separate floppy disk This may require more floppy disks but will make it easier to understand restoring just certain folders in the future You may just want to back up one particular folder in the test library in the DIMDATA folder or just 1 particular test You would do this the same as with copying the entire DIMDATA folder just click on the by the DIMDATA folder to display the folders under DIMDATA Then right click on the folder you want to Copy To find individual test files click on the yellow folder icon containing the test file and the contents of the folder will be shown on the right side of the Windows Explorer screen Then right click on th
178. ext entry box where you can type in a number for a spec For many others in this screen like Head s Cam etc you can type in most any descriptive words you want or leave them blank These ican be useful comments for describing how this engine was built or modified for this particular dyno test Drop down combo box For some specs like Customer in these Engine Specs you can either type something in the box lor click on the arrow button to select a pre programmed selection For most others you can only select from a list of pre programmed choices Blueprinted Yamaha Bore Stroke CR cig 9 90 Chmbr 11 0 ces Crank Wt amp Decr lbs Flywheel Wt amp Dia 3 4 jbs B in Distributor Spark Plugs Gap Timing 252 Autole Cam amp Heads Heads Yliv Dia PotCCs RARatio Lash nr ee EE ee ee Fuel Delivery Carb s Intake amp Exhaus Carburetors sf Headers Walbro S Click on the down arrow button to select either 2 Stroke or 4 stroke engine types p 15 rame to enter a comment to describe these component specs These comments are saved with the specs in the Component Library in the case shown here can either enter the pecs directly in his case the compression ratio or click on the Clc button to calculate it from other inputs Standard menu commands which provide the options for closing this menu Back savin
179. f you change a channel in a set of 4 that was previously set to say Analog to thermocouples the program will warn you that all channels for this group of 4 must be the same and make this change for you The next 2 analog channels 17 and 18 are reserved for the standard accelerometers in the DataMite II box The next channel 19 is reserved for the 3 axis accelerometer and channel 20 is reserved for DataMite II power typically car battery power When used on a dynamometer these accelerometer channels are not used For the Black Box II DataMite III USB and DataMite Mini USB certain channels are analog channels with some channels reserved for weather station sensors and some channels reserved at thermocouple channels in the DataMite II USB The actual number varies with the logger and is easiest understood by just looking at the Channel Settings spread sheet as shown in Fig 2 14 There is a special setting for an Analog Channel of Recording Switch If you install a switch to that particular channel you can then start and stop recording with that switch and do not have to press the keyboard keys DataMite Il Switch and Timer Channels The next 4 channels are On Off switch channels These are useful for recording things like a throttle switch which trips when the throttle is fully open is on or off whether a nitrous oxide solenoid is on or off etc Switches are only recorded at the sampling rate of the other channels say 25 or 50 times aseco
180. files 1 DAT file which is the recorded DataMite data 2 CFG file which is the configuration file including DataMite specs Dyno Specs Engine Specs etc 3 LAP file which is the Lap or Run file identifying where the beginning and end of each dyno run is in the DAT file If you want to copy a DataMite test from one computer to another you must copy all 3 files This is done automatically whenever the program saves or opens a file or when you used the Save to Floppy and Open From Floppy commands discussed on page 18 If you have a file from another computer from another disk like a floppy or folder you can simply copy it into any folder in the DTMDATA folder and it will be found by the DataMite program This can be done with a system program like Windows Explorer or by clicking on the My Computer icon on your desktop You can also create new folders directories in the DTMDATA folder and these will also be used by the DataMite program Also check Appendix 4 Backing Up Data and Appendix 7 page 223 New Features in Version 3 7 for latest features for 1 step Backup Restore 130 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 6 Filter Test Files Pro Version Only The Dyno DataMite Analyzer has a powerful way to search for tests in the Test Library called the Filter Option Click on the Filter button in the Open Test File menu Figure 3 28 page 127 to be presented with the screen shown
181. for a new Unlocking Code for that computer There may be a charge for additional computers Also See Section 1 2 Important In the 10 day Demo mode all features work as in the working version Therefore you do not need to immediately unlock it before you use it Then even after 10 days you can still call for an unlock code Its just that after 10 days the program will not do anything other than let you unlock it Also most every package we ship includes a Quick Start which describes some critical steps to get your particular data logger up and running Be sure to read this and the separate paperwork describing your particular options wiring and sensors C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction 1 5 Example to Get You Going To start the Dyno DataMite Analyzer click on Start then Programs then Performance Trends and then Dyno DataMite Analyzer or click on the Dyno DataMite icon on your desktop During startup of the program you will be given some introductory tips These tips can be turned off by clicking on Don t Show Me These Again After these brief introduction screens and questions you will be left at the Main Screen shown below Notice that there is already a dyno test loaded and displayed This is for the last dyno test the program was working with when the program was last shut down If you just got your program this would be an example test which was loaded at the factory T
182. for weather flywheel torque conditions Corrected torque should be more repeatable from day to day even if weather conditions change if you enter accurate weather conditions in the Test Conditions menu for each test In the Pro version you can select what standard conditions to correct the data to Corrected Corr HP Is the corrected horsepower calculated from Corrected flywheel torque above flywheel HP See Corrected flywheel torque above BSFC BSFC Brake specific fuel consumption in pounds of fuel per horsepower hour based on the Observed HP and fuel flow based on the assigned Fuel Flow frequency channel and the specific gravity of the fuel you ve entered in the Test Conditions screen For chassis dynos the torque and HP are identified as rear wheel torque and HP If you have set the Preference that Chassis Dyno Torque is the torque at the dyno rolls it is identified as chassis rolls torque and HP Another Preference lets you switch to Newton x Meters for torque and or Kw for power 103 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 3 Pick Individual Items Report from settings in Figure 3 2 IA DataMite Data Analyzer v2 0 Performance Trends REEDOS_CFG En Back Print Report Types File Help F1 Operator Tom 5 22 am 04 11 2000 PkTq 33 89 10250 2 047 Bore Send Cmnts Eng Cor To 29 92 60 dy PkHP 66 91 10500 1 815 Customer Peterson Corr Factor 1 ma 5 97 cid
183. from the DataMite DataMite Analyzer DataMite Analyzer Data Download Complete No noise spikes found If Noise Spikes had been found you would have gotten a message like this stating that the program has found what it believes is bad data points You can elect to have the program edit them out now recommended for beginners or Not edit them now so you can try to investigate the source of the problem Edit Out Noise Spikes 74 Noise Spikes have been found in this data You can have the program Edit them out now answer Yes below or Edit them out at a later time answer No below Answering No is good for debugging the source of the Noise Spikes Then you can click click on Edit at the top of the Main Screen then Edit Out Noise Spikes to eliminate noise spikes at a later time Do you want to Edit out Noise Spikes now This message lets you know how many dyno runs the program found in the data you just downloaded STKBGSO1 DAT When analyzing data file As Accel to Measure Torque and HP The DataMite Analyzer program has found Number of runs 1 Minimum run time 10 67 Maximum run time 10 67 Median run time 10 67 If this does not appear correct Check the DataMite Setup Specs for correct Data Type and Auxiliary RPM sensor descriptions Use the Edit command to Cut Beginning or End of Data Then erase parts of the data file which may include engine warm up excessive coast down etc
184. g Click in the Save Dyno DataMite v3 2 Performance Trends yam 900 CFG column to enter a E Edit Graph Report TestConds Engine DataMite Dyno Preferences Help Yes or erase a Start Dyno Run _ Yes All tests Test amp Engine Conditions TST EEA move to the i fep TheteteowFEW bottom of the F815 Stroke PkTq 8 52 9800 8 by i History Log and 37 cid 2Cyce PRP 17 11 10200 line Beta i eventually fall off arable the list as you Test Data corr to 29 92 7 60 deg dry air work with new aml a ea ey Tests marked Yes 1 E 7 10 2 6400 5 96 do not fall off the 6600 6 04 list 6800 6 01 5 7000 6 03 6 7200 6 w Test History Click and Close History Log Aear erase History Print He move slide Test File and p Moe Flora ebe Pela Pee ae Da D bar down t Yam100 0003 01702 2000 EE 3800 on 10200 ar gown to Yam100 0003 01 02 2000 8 92 9800 17 11 10200 i display all examplesdyno yam 1000 cig Yam100 0003 01 02 2000 8 62 9600 16 31 10200 i A i 25 1 00 tests examplesdyno fia cfg Fiat009 01 08 2001 82 50 1600 51 06 4200 i i examplesdyno yam 975 cta Yam100 0003 01 02 2000 8 51 9600 15 94 10000 047 1 i in the History examplesdyno yam 925 cig Yam100 0003 01 02 2000 8 28 9800 15 72 10200 i il L og tomkraus reed090 cfg Yam100 0003 04 11 2000 1259 10400 26 05 11000 examplesdyno black box ii cfg 02 25 2005 9 82 3000 6 59 5000 examplesdyno 383 chevy cfg Testi 10 05 2004
185. g or open files of these individuals specs click on File then Save or Open erasing a set of pecs click File then New printing this screen click on File then Print etc See the ections later in this chapter for more details on individual menus 12 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 13 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 1 Main Screen Test Data Inputs The Main Screen is shown in Figure 2 4 and is designed to resemble a typical dyno printout and graph Like a dyno printout it shows the torque and HP obtained at a range or RPMs and a torque and HP vs RPM graph The Main Screen is made up of 5 basic sections as shown in Figure 2 4 These are discussed in the next 5 sections The rest of this section gives an overview of how the Main Screen is organized Figure 2 4 Main Screen Pro version 5 Menu Commands of File Graph etc These give you all the options to operate the 6 Click on the Start Dyno Run program and change test data Button to start a new dyno test A Dyno DataMite 3 2 Performance Trends black box ii CFG 5 1 Run Tab s ilg Edit Graph Report TestConds Engine DataMite Dyno Preferences Tt Start Dyno Run l Test amp Engine Conditions Test k 1 13 am 02 25 2005 EXHAUST TEMP PROBE IN MUFFLER NOT EXHAI Pipf Help Click on one of the Tabs here to change to a different PkTq 9 82 3000 oe PkHF
186. g These JRDRGSTS CFG cahesly 7 772 81 43 ttt french 1 CFG Gillespie Accel Conditions will return you to the Open GTOindyptsmt01 CFG Gillespie Accel 11 493 114 63 RA13 CFG Cil lespie Accel 180 Test File screen Only files fitting these e025109 Xg Gillespio icce conditions will be displayed which may REN l be no files in some situations You can Click and Drag Mouse to highlight a File Name click on various folders or whatever then click on Open button below to open it name you have given to folders in the Preferences menu at the Main Screen to z Ten E HENIE see if there are any matches in other Click and drag mouse on a file and Folder to select it then click on Open to open it folders Turn Off Filtering show all files will return you to the Open Test File screen and now all files will be displayed Print List of All Files Fitting These Conditions will search through the entire Test Library all folders in the DTMDATA folder for files matching these conditions and display them in a new screen From this screen you can also print the list This is the quickest way to see which folders may contain test files matching your conditions Tip When looking for a word the program doesn t care if it is in CAPITAL upper case or small lower case letters In Figure 3 35 above you are looking for the word BowTie in the test comments The program will display all files which have the word BowTie or the w
187. g the WOT switch to determine beginning and end of the test Buh Fin foma View Guah Tie Add Tent Hetop log Malet Tests Hep FORE SS OOo Oo Orono moe Engine RPM Torque vs Time eae _ _ Corr Tq Corr HP vs RPM Resultant power curve from using the Absorber Dyno Test Specs and letting the program find the beginning and end of the test The Test using the program s criteria with the Test Conditions of Absorber Dyno Test Specs to determine the beginning and end of the test TENTIT Buh Fie fona Ves Gable AdtTet Hawla Mielen Het Boh fa foa View Twe Add Tet Hato Leg Mapetan He eT T OI ORB eS ee iol a Sse oom oOsoIccCRAmS ce Engine RPM Torque vs Time reana At a Corr Tq Corr HP vs RPM Slight difference at low RPM This method is the more accurate for this case For this case the method of letting the program find the beginning and end of the run based on the Absorber Dyno Test Specs in the Test Conditions screen was slightly better than having the operator use the hand held Recording Switch Figure 4 49 shows graphs of all the other data recorded vs RPM You could create most any combination of channels scales X axis of time or RPM and much more to produce most any type of graph you can imagine See Section 3 3 on all the graph options 180 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 49 Graphing Other Data Channels Databite Analyzes v1 2 II
188. gineering Units 57 Errors 55 67 89 96 155 186 204 227 Est Required Inertia 71 File 3 5 6 8 9 12 18 23 24 27 44 52 65 90 93 94 95 107 111 128 129 130 133 134 135 144 149 151 154 205 209 210 223 224 227 Filter 6 1 16 17 18 26 43 76 78 95 101 109 110 131 132 156 162 166 167 170 202 204 223 Filtering 16 17 26 76 78 95 101 109 110 156 162 166 167 170 202 204 Find Ports button 224 242 Finish Engine RPM 71 72 Floppy Drive 208 Flywheel Diameter 45 Flywheel Wt amp Dia 45 Folders 3 5 8 12 18 24 44 90 107 129 130 132 133 154 161 175 207 208 209 210 224 Formats 44 113 117 120 134 224 Freq hz 57 Frequency Holdoff Time 227 Friction Losses 4 186 219 Fuel 34 47 54 56 103 173 190 Fuel Delivery 47 Fuel Setting 47 Fuel sp g 34 Gallons per Minute GPM 226 Gap 46 Gasket Bore Dia 82 Gasket Thickness 81 82 Gauge Settings 76 77 78 Graph 6 1 8 12 15 17 19 23 26 27 28 39 60 69 77 78 79 94 95 101 107 108 109 111 112 113 114 115 116 117 118 119 120 121 133 134 135 155 156 157 162 163 164 165 166 167 168 170 177 179 204 220 221 223 224 226 Graph Runs 135 Graph Scales 112 Graph Type 156 167 Graph larger font 224 Graph 168 224 Grid 112 Harley Davidsons 227 Head s 19 46 Headers 48 Help 3 4 6 8 9 16 20
189. guration into the DataMite II box This is the same as the older command Force a Reconfiguration of the DataMite II Current Readings Click Current Readings to display the screen showing current readings for most sensors This very important screen is the screen you will be watching as you are running a dyno test See Section 2 7 for more details Figure 2 17d Weather Station Cal Weather Station Cal Calib Data from 0171472005 This option lets you enter calibration information for your weather station ee mE Calibration Factors For most weather stations the factory calibration of the sensors is accurate enough for dyno testing You could just leave the calibration settings all as Barometer zero and be fine because this will still produce very repeatable tests If the Temp barometer sensor is 2 Mercury low it is 2 Mercury low for all tests eo Humidity fo The Weather Station Cal is for those users who want to exactly match some other weather station instruments You can enter the calibration fresco a E shoe i nter the numbers from the Calibration Sheet or factors which come with your weather station from Performance Trends or a a a of ite you can enter your own numbers For example if you want to lower the Performance Trends Black Box Weather barometer reading 15 inches enter a Barometer Calibration Factor of 15 Station negative 15 The Black Box II with its in
190. gure A3 4 Examples of Engine RPM Drop Out from Inductive Pickup Examples of drop outs shown here happen Engine RPM will drop to about 1 2 or 1 3 of what it to be on the decel after throttle closes and should be if signal to inductive pickup wire is weak spark voltage drops but it can occur on The fix is to wrap the inductive pickup wire around the accel also causing more severe the spark plug wire 1 to 2 turns for a stronger signal data calculation problems te DataMite Analyzer v2 0 DDDD12 CFG x w DataMite Analyzer 2 0 SW002 CFG x Back File Format View GraphType AddTest HistoryLog Multiple Tests Help Back Fie FormatNyiew GraphType AddTest HistoryLog Multiple Tests Help Tel eeel eA edee vese le E N elele eA bo De Tt ruven et scaes Engine dddd12 all Engine RPNK Dyno RPM vs Tim sw002_all 7 z Engine RPM 6000 z Engine RPM 1 Dyno RPM i Dyno RPM i i i i i i 7 i i i i i i i i i 15 0 Time sec If the inductive pickup signal is too strong you wrap the spark plug wire too many times you may not be able to record Engine RPM at high RPM Engine RPM may drop in half or all the way to 0 RPM There can be several sources of electrical noise which can look like additional spark firings to the DataMite The major source is from the spark plug wires Solid core wires can produce noise to the DataMite just as they do to an AM radio Switch to r
191. h RPM variation allowed is determined by the Minimum RPM setting the the Test Conditions menu The farther the RPM is from Minimum RPM the more RPM variation it will accept Program now warns dyno operators if they are not requesting a Dyno type of test when starting a new test which can cause unusual results to be calculated A new Preference lets you turn off this warning We ve added the ability to start and stop data recording of DataMite II Black Box II and the USB DataMites with keyboard or mouse or external switches which you would pick as a Record Switch from the list of calibration types We ve added the ability for program to find start and end of a dyno run or Tq HP run in the vehicle versions based on the closing and opening of a switch In the DataMite specs you must assign a switch channel as WOT Switch for this feature to be used This is available in the Pro version only You can now use Ctrl N hold down the Ctrl key while pressing and releasing the N key to start a new test by bringing up the New Test Screen Tip Press a Ctrl N from the Main Screen to get the New Test Screen then press Ctrl N again to start getting data This saves time and keystrokes and eliminates mouse commands New Calculations and Outputs We ve added a Performance Estimate Preference for doing either a 1 4 mile or 1 8 mile ET and MPH for the dyno version based on the power curve s on the main screen We will also display the
192. he Graph Cursor Load these 3 RPMs and their times into the Dyno Specs screen shown in Figure A6 1 Note that the HP losses calculated are typically less than 5 of the power levels the particular dyno is intended to absorb Check Appendix 7 page 223 New Features in Version 3 7 for a new special Test Type called Coastdown which will automate this entire process 220 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A6 3 Graph of Coastdown Results w DataMite Analyzer v2 0 TEST11 CFG Back File Format View Graph Type Ta Test Ay Logt f iple ests E test11 all Dyno RPM 1263 1 i 1 I I I I 4 j I I 4 j I j J I j j I j I erT TETTETETT sanson See eae 7 40 00 80 00 120 00 160 00 200 00 240 00 Time sec 6 333 221 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 222 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 7 New Features in v3 7 The Dyno DataMite Analyzer has had many updates since this user manual was written for the original v3 2 for Windows Here is a brief listing of some of the features new since v3 2 was originally released including Version 3 7 s new features Notes e Some of these new features apply only to the Pro Version of the software e Some of the features listed here were actually added into later versions of 3 2 so you may have them already if you have v3 2
193. he Keep Specs to keep this calibration and load it into the DataMite Specs Sensor and Calibration column for this channel After calibrating the Dyno Tq channel in the DataMite Specs menu you must also assign the correct Torque Measurement type in the Dyno Specs menu See Figure A5 7 Figure A5 7 Assigning the Correct Torque Measurement Type for an Absorber Dyno Click on Torque Measurement and select Torque Arm as the type for an Absorber Dyno in the Dyno Specs menu w Inertia Dyno Specs Back File T rque Measurement Current Readings Help Torque A Inertia and Acceleration The torque Y Torque Arm AMite specs menu Click on DataMite at the top of the Main Screen Then pick the cl Hydraulic Pump Pressure que by click on the Sensor and Calibration for the appropriate channel At the calibra een perenang erener as the Sensor then Dyno Torque as the Sensor Type Then enter in the Sensor Specs to calibrate this channel for reading torque Torque Channel is currently NOT SET Other Specs Help The inside diameter of Main Shaft in inches Unless using a hollow datli shaft this wil be zero 0 p 51 Total Gear Ratio 4 215 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 6 Correction Factor Figure A 5 8 Diagram of Correction Factor You may have noticed an input called Correction which became enabled after all calibration inputs were entered The Correction factor is a co
194. he configuration in the DataMite Il Box matches the If you answer Yes you must hook up the DataMite Il box to your computer Com Port aa Click on the down arrow button to select computer s Com serial port you are using to talk to the DataMite This spec is used to hold the last Com port the computer used to talk to the DataMite If this particular port does not work and you have selected the correct Preference see Section 2 2 the program automatically checks all Com Ports on your computer 1 8 Weather Station Is the type of Weather Station being used by the DataMite program if any If you choose the Performance Trends Black Box you will then have a new menu choice at the top of this screen to Calibrate the Weather Station Here you can enter calibration specs you received with the Black Box to improve its accuracy Com Port Click on the down arrow button to select computer s Com serial port you are using to talk to the Weather Station if any If you have set this to the same port as the DataMite com port listed earlier then the DataMite will request you to switch to the Weather Station assuming you have a switch box after downloading the DataMite data This is disabled if you are using the Black Box II s internal weather station DataMite II Rate Is the sampling rate for all DataMite II channels The higher the number the more data recorded This allows for less recording time but will possibly make the dat
195. he different channels you can just unplug that sensor and watch which channel changes on the Current Readings screen If you do not get the Current Readings display check Appendix 3 Troubleshooting for how to check the Com Ports for communication problems Now you can start the engine to see that you are also getting RPM readings If there are sensors which are not giving readings you expect be sure to check the installation instructions which come with each sensor Coastdown Test Data 148 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSS SSS sn E I SS ee ee Although you probably won t actually do a coastdown test until you get familiar with your DataMite and Dyno system lets assume you do a coastdown test before you run your first dyno test to help you estimate the aerodynamic and frictional losses in the system See Appendix 6 for more details Appendix 7 describes a new Test Type of Coastdown in Version 3 7 which lets you automate this entire process Assuming you have done a coastdown test you can enter the 3 pairs of dyno wheel RPM readings at the 3 different times as shown in Figure 4 6 e 1290 RPM at 0 seconds e 1010 RPM at 80 seconds later e 755 RPM at 180 seconds later than the 1290 RPM 100 seconds later than the 1010 RPM reading Note If you have not done a coastdown test on your dyno it is best to enter 0 for all 6 coastdown specs to cancel out this correction With all the dyno
196. he gauge and type the reading in Then click on the Read button for the 2nd Value Click on Keep Specs and you re done Zero is usually a good choice for the 1st Value You want the 2nd Value to always be fairly high at least 65 of the full range or higher For a 200 PSI pressure gauge this would be 65 x 200 or at least 130 PSI The DataMite program has built in sensor calibrations for several standard sensors like MSI Pressure Sensors Thermocouples RTD type temperature sensors accelerometers etc 216 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A5 9 Process of Using the Read Button for the Correction Factor Do Correction Reading You can simply type in how much you want the program to Correct the reading For example to have a thermocouple read 5 degrees warmer than it currently reads you can enter a Correction 5 higher than the current Correction For example if the current Correction was 2 adjusting the temperature DOWN 2 degrees and you want it to read 5 degrees higher than it currently is 2 5 3 you would enter 3 as the Correction Then you would not need to read the DataMite and could press lt No gt now and just enter a new Correction To have the program read the DataMite s signal and come up with a Correction you must know what the signal should be reading right now The program will ask for that number after it reads the sensor
197. he name of the test is shown at the top in square brackets BLACK BOX II shown in Figure 1 3 Figure 1 3 Main Screen Pro Version Al Dyno DataMite 3 2 Performance Trends Black Box II _CFG File Edit Graph Report TestConds Engine DataMite Dyno Preferences Help New make new dyno run F5 Run 1 New get data from DataMite Ctrl N Open from all saved tests Ctr O Test Comments Open from History Log EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST PIPE Help Click on one of the Tabs here to change to a different Save 5 tun Save s Ctrir Open from Floppy CD Drive A Drive Save to Floppy CD Drive A Drive Search For find Runs Print this Main Screen Print Other Screens Windows Printer Setup Unlock Program Options Transfer Program to Another Computer Exit Program 8 86 8 16 7 70 7 48 7 23 6 90 6 50 5 92 5 50 5 10 2500 3000 3500 4000 4500 5000 5500 C Performance Trends Inc 2005 Dyno DataMite Analyzer From this Main Screen you can e Choose to review your options by clicking on the menu items at the top of the screen e Open or save a file of test results and specs by clicking on File in the upper left corner and then the Open or Save commands e Edit or review test data settings or comments for the file you are currently working with e Graph or report the test for the file you are currently working with e Change the Preferences option
198. hen Engine RPM will be 0 if the Dyno RPM is also zero Turn this preference Off to check Engine RPM e Ifyou are using the Inductive Pickup Clamp then Adjust the sensitivity screw to the highest sensitivity e Check the engine RPM at different speeds and loads and see if it ever registers If it does then you have to adjust the sensitivity of the inductive pickup wire or clamp or change the source of the Engine RPM signal e If you can not get a clean Engine RPM signal there are several options for running dyno tests without it This is done by calculating the Engine RPM from Dyno Wheel RPM See Table 2 1 in Section 2 6 Dyno Specs If other RPM signals are not coming through e Magnets must be adjusted closer to the sensor Note Do not adjust closer than 050 or so close that the sensor may hit the magnet e Leads to wheel sensors have a break in the harness e Ifyou are using an active RPM sensor 3 wires to sensor the sensor only senses the south pole of the magnet Try turning the magnet around e The magnet or steel target may be passing by the sensor too fast This is determined when the RPM goes away at higher RPMs but works well at lower RPMs e There is a minimum RPM that the systems can measure approximately 400 RPM when using only 1 magnet Try speeding up the dyno shaft and see if RPM now appears e Fault in Black Box or DataMite module e If you can not get a clean Dyno RPM signal there are options for running dyno
199. hen overwriting files as you may overwrite a new test file with data from an old test file of the same name Before restoring test files it is good practice to back up all test files first Then if you make a mistake and overwrite test files you didn t mean to you have your backup copies to restore the test files from Figure A 4 3 Windows Explorer Warnings when Overwriting Test Files Overwriting a Test File Overwriting an Entire Folder several files Confirm File Replace x id This folder already contains a file named Headnum pti Be very careful selecting m this option as several files may be overwritten at once Would you like to replace the existing file E 657 bytes modified on Wednesday May 19 1999 3 28 48 PM Confirm Folder Replace with this one g gt This folder already coftains a folder named Combo ag 211KB If the files in the existi g folder have the same name as files in the 2 modified on Tuesday August 31 1999 1 09 24 PM folder ee moving they will be replaced Do you still want to move 210 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 5 Calibrating an Analog sensor An analog sensor is one that records a signal that can gradually and continually change In contrast a switch signal is either On or Off not 95 open then 94 open etc An RPM signal is a series of switch openings and closings How close these changes come together determines the R
200. here RPM drops at the top of the run Check Section 2 10 on how to do this Another possibility would be to eliminate the WOT switch input and let the program find the start and end of the run itself This would be done by going into the DataMite specs for this test and changing the Sensor and Calibration for the WOT Switch to Other Switch Now the program will have to look to the Test Conditions Absorber Dyno Test Specs for finding the beginning and end of the test To do what we described you will e Go into DataMite Specs Change the Sensor and Calibration for the WOT Switch to Other Switch Fig 4 47B Back out of that screen and choose to save the changes to the current test Do not save the changes to the Master Dyno Specs e Go into Test Conditions and verify that the Absorber Dyno Test Specs are set to Start Low Release to High and the Max RPM is above the high RPM of the test of approximately 7300 Also to eliminate the low RPM dip set the low RPM to something higher than the RPM in the dip like 4000 You set the Max RPM to 7500 and back out to the Main Screen When you click on Back the program prompts you that this change could change the beginning and end points of your test and wants to know if you want to keep it You say yes and back at the main screen you do see that the curves do look different at the lower RPMs See Fig 4 47 B Figure 4 47 B Eliminating the WOT Switch as Marker for What Part is Full Power Data Mite Spec
201. his is the number of teeth on the gear which attaches to the dyno or spins at dyno RPM If you selected Gear Reduction amp Chain Drive as the Type typical of motorcycles this will be called Teeth Clutch Primary Gear and is the teeth on the sprocket or drive gear on the transmission input shaft or clutch shaft In almost all cases this number will be larger than Teeth Engine Gear Teeth Engine Sprocket This is the number of teeth on the smaller drive sprocket on the engine or clutch for chain drive systems In almost all cases this number will be smaller than Teeth Dyno Sprocket Teeth Dyno Sprocket This is the number of teeth on the larger driven sprocket on the dyno for chain drive systems In almost all cases this number will be larger than Teeth Engine Sprocket 2 8 3 Calc Dew Point deg F 82 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 Ic Relati idi Depending on your choice of Method of Recording Weather Data you ure 2 38 Calc Relative Humidit will be entering either Dew Point or Relative Humidity in the Test Calc Relative Humidity Conditions menu This is the Calculation Menu you will get if you are Calc Relative Humidity using Dew Point Calc Relative Humidity Weather Inputs See Section 2 3 Test Conds menu to see why Dew Know Dew Point Point is usually more accurate and less confusing than Relative Humidity for entering humidity information
202. hrottle the same etc e Do not let your emotions get involved with your testing You may want to prove your theory that Attaching magnets to the carb float bowl will energize the fuel and make more power If you run enough tests you will find a before and after test to prove your point even if the average of all tests say there is no effect e Always try to repeat your Baseline or the Before condition For example run 2 or 3 tests with the Baseline Cam A Install Cam B and run 2 3 tests Then reinstall Cam A and run 2 3 test to prove that your Baseline repeats Back to back repeats do NOT prove repeatability of the whole test like repeating the Baseline again after the modification Something could happen during the teardown for the cam installation 187 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 188 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 2 Hardware Installation and Operation Most all DataMite sensors and wiring come with their own installation and instruction sheet Those instructions are more detailed and up to date than what is contained in this Appendix For that reason it is important for you to read and keep those individual instructions See Example 4 1 for additional detail on Installation 1 Ensure All Pieces Were Shipped Check your invoice or packing slip to be sure you received all pieces The invoice or packing slip will probably have check ma
203. ibuting less than 3 is not that critical For each component of the inertia wheel assembly its inertia is calculated and added to the total and its relative size is sketched in the layout in the lower right corner The sketch is not an exact drawing of your system It is meant only to show the relative size of the different components so you can see any obvious errors in your inputs Individual Inertia Dyno Specs Sections in Main Wheel Pro version only Click on the down arrow button of this spec to choose the number of sections in your main inertia wheel If your inertia wheel has a constant thickness choose 1 section If it has sections of different thicknesses then choose a number from 1 3 which best describes how many thicknesses there is See Figure 2 21 If you have more than 1 inertia wheel which you can add or remove from the system see the of Main Wheels spec below as this may influence your choice here of Main Wheels Pro version only Click on the down arrow button to select how many wheels you have installed for this run For most inertia dynos there is probably only 1 main wheel In this case you would always keep this set to 1 However some inertia dynos can have more than 1 wheel so inertia can be increased or decreased depending on the engine power level being tested See Figure 2 21 for explanation Note that the program will just multiply the inertia of the Main Wheel specified by the of Main Wheels Therefore
204. ides for several graph commands and options Graph Title which can be changed by clicking on Format then Edit Titles Legend Pro version Name of current Test File containing all dyno data and specs w DataMite Analyzer 72 0 REEDUS CFG x graphed This includes Bak Fie Fomat Yew GiachType AddTest Hitoy Log Sirgete Hep Name of the Test Results Sl lal y yee eed Eee ed bee x4 ruven se4cates ile the particular Dyno Corr Tq Clorr HP vs RPM vami 00 2003 1 Run graphed Type of 27 0 oll 4 Data which data goes ith which file if any 24 0 multiplier is applied to the data You can also click on Data Type names and the corresponding data line will flash This is useful to find a particular line when several are graphed In the Pro version names in the Legend can be changed by clicking on Format then Edit Titles Legend 21 0 18 0 1 1 1 1 fo 1 1 i 1 e 1 1 i 1 r 1 1 1 The Dyno Run or All if all data is graphed is included in the Test 6400 7240 so00 s800 9600 10409 11200 12000 12800 13600 1440015200 RPM Name ee ena See ee a b b Horizontal X axis The scaling of this axis can be easily changed as described in this section If 2 or more tests are graphed vs Time then buttons will appear here letting you shift 1 test with respect to another a process called time aligning Pro version only Grid lines The style or elimination of grid lines can be change
205. ijuns paip ui yunow Jou og WOT SPUAJNULULLO och DEZG EZF 8FZ spuasj aauewnopad aera sjlejap aow 10 SUOIJONI SUI ped jenpiapul 0 18421 uonejlezsuj OUAG yyeeg Ieord L a inn Saqodg ajdnosouuay 196 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A2 9 Sources for Ignition Signal for Engine RPM NOTE Tach signal is where Figure says Red Clip Chrysler Ford Non Electronic Attach red clip to terminal terminal connected 3 connected to control to distri unit a buter Ford TFI Attach red Attach red clip to clip to terminal de green connected S wire s to distri SD terminal buter GM Seperate Coil HEI 4 cyl amp in line 6 cyl Attach red clip to this 1 4 male spade connector Attach red clip to this terminal GM External Coil HEI Foreign amp Other Attach red ie Permanently clip to attach test this i connector wire s S to this wire terminal for a term inal to connect the red clip 197 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 198 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 3 Troubleshooting Data Should you encounter problems recording data or obtain unusual results from your recorded data check the suggestions below IMPORTANT Some of the checks in this section ask you to use a volt meter and or ohm meter to troubleshoot If you DO NOT know how t
206. in the Engine Specs Screen Pro Version Only Engine Specs FORD 5 0L Back File Help All Engine Dimensions can be done in Metric Engine Customer amp Comments Peterson s 358 Cheyyfor his Yefthander Late Model after HTH Engine Customer freshening up p 2008 Usithg Metric Units on Engine millimeters instead of Example0001 Peterson now inches You can also Short Block gnition choose to have the rest of the program remain Type 4Stoke x Bore Distributor in English units Cylinders Stroke Spark Plugs inches Ibs etc or Rod Length C R Metric mm Kg etc 356 90 cid 5849 6 ccs Chmbr 86 0 ces Block Stock Cast Iron Head s Hp LLEY Cam ydraulic FLAT Crank Wt amp Descr K L PotCCs ARatio Lash Flywheel Wt amp Dia 2 7216 Ka mm Int Entries which are used to Correct for Engine Inertia Exh Effects for more precise power curves j 40 64 highlighted in blue Taka ia If you have selected to Fuel Delivery Carburetor s X have the Engine s Help Inertia and acceleration Type in most any comment to describe the exhaust Labis 650 DEMON rate be used for system and mufflers if any No entry is required p c esoo 4 48 CSAS 916 PSI correcting the torque Manifold and HP data the Engine lear Specs which go into that correction are now Mufflers Stock full exhaust highlighted in blue on this screen Preferences Here you can choose to have Main Screen Filing System the Engi
207. ine Analyzer is good for this If your results don t match what you expect start looking for errors in the installation of the part or in the engine rebuild Many times dumb mistakes are the reasons dyno results are not correct Examples could include RTV squeezing out into a port or plugging a carb port Changing the coolant temp sensor location so you warm up to a different temp Changing the type of oil or the amount of time on the oil Changing fuel Mis timing the cam or the distributor Entering the weather conditions wrong etc e Corrected Torque and HP readings should repeat better from day to day than Observed Torque and HP readings Therefore you will want to compare Corrected Torque and HP when checking for changes The corrections Performance Trends use are very similar to any other dyno software package However no weather corrections work perfectly Therefore when 186 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices PE I ee a Se you need to check for small improvements you should try to run the tests as close together in time as is possible ideally within a few hours This helps ensure the weather does not change and other unknows like fuel oil testing procedure due to different operators etc e Always perform each test as exactly the same as possible Warm up at a certain RPM to a certain coolant oil and or head temperature open the throttle at the same rate wait for a certain RPM close the t
208. ine tune how the program reads RPM signals for the DataMite III USB and DataMite Mini USB There are Preferences under the Calculations cont tab in the DataMite USB section to 226 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices E a aS Ss SS e Change the Hold Off time in the RPM channels for the DataMite III USB before the next pulse can be read This will let you tailor the RPM channels to not false trigger on multiple pulses However if you increase this hold off time too high the program will not be able to read high RPM e Let the program use either trailing edge or leading edge of the RPM signal Depending on the type of sensor or ignition system one method or the other my produce more accurate RPM readings For the DataMite III USB you can choose analog channels 1 4 for the torque channel For previous data loggers only one channel was allowed for recording torque The program will now use a thermocouple with the Eng Intake Air setting for correction factors for the Dyno Version Box temp is used only to convert Relative Humidity readings to Dew Point This feature only works on the Black Box II and DataMite III Mini USB boxes with internal weather sensors This is available in the Pro version only The program is now setup for the Second Generation external dual thermocouple amp which is much more accurate It will no longer work with the First Generation dual compact thermocouple amp yellow connectors
209. ining or comparing the value of the graph lines at various places See Figure 3 20 for explaining the use of the cursor Figure 3 20 Cursor Features and Commands Click here to turn cursor ON Click here to turn cursor OFF Click on these buttons to move the cursor left or right Hold down the lt shift key gt while clicking these buttons and the cursor moves faster ou can enable the cursor by clicking on View then Turn Cursor On Cursor line usually t DataMite Analyzer 2 0 YAM 925 C G x Back File Format View Graph Type AAd Tet stof Log Single Test Help The value of each lel BN TT oy Leto plod x te rutview set scaled graph line at the Corr Tq Corr HP vs RPM vam100 0003 1 cursor is displayed 8 04 CorrTq her Corr HP 13 85 erg yam 950 1 Corr TA 7 68 Corr HP 13 20 4 yfA 1 1 1 i 1 lt 1 1 1 J 1 1 i wee Faw oew ot ouoe ao J 1 T 1 1 1 4 6000 8000 10000 12000 14000 16000 RPM ou can also enable the cursor by single clicking on a graph line lat a data point This also provides a quick way to move the cursor from 1 area of the graph to another Do not drag the mouse while clicking or you will zoom in on that area 116 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Dual Cursors Pro version The dual cursor feature lets you bracket a range of RPM or time and analyze data just in that bracket Figure 3 20
210. int ReportTypes File History 6g Single Test Multiple Tests Help F1 Operator Tom 519 pm 01 02 2000 Pk Tq 8 86 10000 2047 Bure Report History EB Comments Eng Ysm100 0008 Con To 29 92 60 dy Pk HP 16 91 19400 1 815 Stroke Customer Peterson Corr Factor 1 067 5 97 cid 2 Cycle 1 Cylinders Log option sare yamS50 CFG Runt yam1000 CFG un yam S75 CFG Run yamS25CFG Run 1 very similar to RPM Com T Con T Cor T Con T Con T Graph History Lor Ic ON Or orr orr 7000 w 594 2 an 565 Log Click in this 7500 i 6 37 6 21 6 07 j 20007 i 7 05 0 6 99 6 60 column to put ive 8500 7 95 7 73 7 37 Yes to signify 30007 8 34 6 831 7 38 35007 8 57 Pk 8 47 Pk 8 21 that this test 100007 8 52 8 34 8 22 Pk should be 105007 7 92 l 777 7 75 ae fae included in the KERR 6 34 comparison 12000 6 25 12500 i I i l 6 41 report Click ona 13000 6 48 5 41 6 10 Yes al ready im Test History _ oy x displayed to Report Tests Marked Yes Report Current Test Only Cleayferase History Print Help Test File and Path Report Std Report itle Runs Report Runs Save Engine TestDate Peak Tq Peak HP a erase that Yes to examplesdyno yam 900 cfg Yes yam 300 1 1 Yam100 0003 01 02 2000 8 92 9800 17 11 10 de select that test examplesdyno yam 950 cfg Yes yam 9Z 1 Yes Yam100 0003 01 02 2000 8 92 9800 17 11 10 examplesdyno yam 1000 cta Yes yar 000 1 Yes Yam100 0003 01 02 2000 8 62 9600
211. ions Click on Save to save these settings to the Vehicle Description name Open Click on Open to pick from a list of previously saved Vehicle Descriptions Meas The Measure option will adjust 1 of the 3 settings of Drive Tire Radius Trans Gear Ratio and Final Drive Ratio to produce the proper relationship between the Engine RPM and Dyno Roller RPM Therefore you must enter at least 2 of these settings before the Measure option is available It can be used to double check your 3 entries or you can be used to calibrate the Calculated Engine RPM after you have entered estimates of 2 of the settings Click on Meas measure to be presented with the screen of Figure 2 9c Here you can operate the vehicle on the dyno in the transmission ratio you will use for the test Then you can click on Measure Both RPMs from Dyno and the program will fill in both RPMs currently being produced by the dyno and engine Figure 2 9c Using the Meas Option w Measure Tire Gear This is the new setting required to make the RPM combination below match up New Setting Current Setting Click here to have the program measure the current Measure Both RPMs from Dyno Dyno and Engine RPM signals They will be filled in below as Engine RPM and Dyno Rolls RPM Spec to Adjust Engine RPM Dyno Rolls RPM Choose which setting you want set or adjusted based on the inputs in this screen l Note Calculations based on Dyno Ralls O
212. ions Pro Version Only Emailing Options in Preferences DataMite Analyzer v3 7 COAST CFG Back fG Format View GraphType Add Test History Prefererices Calculations Calculations cont Operation Ci Performance Est slits Emailing Help Email Settings My Email Program Other use specs below v Restart Showing IP Address Find 65 22 192 185 Jee la Turn Off Sender Email Address all Help Path to MS Paint Find C wiNDOWS SYS Tips Click on Help for more Don t Ask info on these settings A Dyno DataMite v3 7 Performance Trends 350 holley hea gt Operator Wade Dunnaway 3 24 pm 12 2672 Corr To 29 92 Corr Factor 1 03 Print Reports Options Test Results Report Options P In iti X Request Report Comment X Include Test Summary X Include DataMite Specs X Include Dyno Specs X Larger Fonts print siz Emaikas PDF File Printer Acrobat Distiller Print Report Using These Specs Tip Close See page 141 in manual for more info 232 Add Test to Graph Print Color solid lines Print Black amp White dashed lines Windows Print Options Using Dot Matrix Printer v Not Using Dot Matrix Printer Email 256 Color Graph Email 16 Color Graph smaller file In the Graph screen click on File then one of the Email options to email the current graph to someone Note they do NOT need to have the DataMite program just standard Windows operating system to
213. ir int RPM Cor Tq E HP 4 Corr Tg Corr HP AIS rer TAT ee pees re lt a pee Click on DataMite to set up the 0 pe by i ee GE EE DataMite Specs to match your sensors 2400 875 3 97 i i H 2600 957 a j or particular channels 2800 974 H i H 4 a 3000 9 82 Pk 3200 9 76 3400 9 62 f i ao a i See ee es ee ee hese current results are from the last aa a a a Re ies a dyno run you were working with This is oo T e E E Wn E A EN identified by the name in square 4600 7 44 so al i i i f brackets at the top of the screen in his case Black Box II 5200 6 63 cmn ew 5 0 2000 2500 3000 3500 4000 4500 5000 5500 6000 Before you start making changes in this example test file save it to a new name This ensures that any changes you make will not affect the example test and that you can easily locate your changes in the future See Figure 4 3 Click on DataMite at the top of the Main Screen to open the DataMite Specs menu shown in Figure 4 4 There will already be specs in this menu which are the DataMite settings used when test BLACK BOX II was run You will change these specs to match your Black Box II Put a Yes in each row you are using If there is not already a yes there then click in the Used column in the row you need to switch a blank to a Yes For DataName you can change it to something you think is more descriptiv
214. irst lets zoom in on the acceleration part of the test after you go full throttle This can be easily done by clicking in the upper left corner of a section of the graph and holding the mouse key down Then drag the mouse to the lower right corner of the section you want to zoom in on You will draw a box outlining the portion to zoom in on See Figure 4 27 162 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 26 Checking Data Quality of Both Tests Being Compared Note that in this graph w DataMite Analyzer 2 0 YAM 1000 CFG x he program decided Back File Format View GraphType Add Test creer Single Test Help NOT to multiply Dyno ee l Fulvisw SetScaed RPM by 10 as it did in yam 1000 all Figure 4 25 Therefore Engine RPM dyno RPM looks much Dyno RPM maller compared to am 975 all Engine RPM in this y Engine RPM Dyno RPM graph Re ea The YAM 975 test shows no noise ee ee ee eee high data quality 17 5 20 0 22 5 25 0 Time sec Figure 4 27 Zooming in on a Portion of the Graph w DataMite Analyzer 2 0 YAM 1000 CFG Back File Format View GraphType AddTest HistoryLog Single Test Help lal El la ees Veo lellei belo terii Sca Engine RPM ee RPM vs Time yam 1000 all Engine RPM Dyno RPM yam 975 all Engine RPM Dyno RPM ie See Click and drag mouse to outline the portion of the graph you want to ill the entire graph screen the portion you wan
215. is is done by clicking on Start installing this program Sanaa If your USB logger is not getting registered correctly you may want to click on Install DataMite Utilities and then Install DataMite USB Drivers Install Adobe tm Reader as described on your Hemos to see their features then Run then Browse In the Browse window you will look for your CD rom drive the drive with the Dyno DataMite CD Double click on it to display its contents which should included a yellow folder called Programs Double click on Programs to display its contents which include the individual product installation programs including Dyno DataMite v3 7 Installer exe Click on this file to highlight it then click on Open then click on OK when returned to the Run screen Figure 1 1b Bypassing the Installation Wizard Adobe acroha e nN Drag Racing Fuel 3 Find the Programs folder on the CD Rom drive Economy Micro Dhat iTunes O Programs ET4L 32 exe ET arpataLogger exe Bilcs wings exe com 2 02 04 exe ET circle_Track_Log_Book exe B cr 32 ExE DatamiteFirmwareUpdate exe ETdcta w95 exe EM ppra w95 EXxE ETDRAP exe Bllor p1m exe EM pypm w95 exe EMpyno DataMite v3 7 Installer exe ETlEngine Analyzer Pro v3 5 exe E EngineA4nalyzer 32 exe My Network Places E 4 O 2em ET EngineBuildLog exe feai FuelEconomyCalculator exe En FuelInjectorCalculator exe Ee InertiaCalculator exe El vSp
216. is specs is used only for correcting engine power for engine inertia effects See Correction Factor in Test Options Ignition 44 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Distributor Type in most any comment to describe the ignition distributor or ignition system No entry is required Spark Plugs Type in most any comment to describe the spark plugs No entry is required Gap Type in most any comment to describe the spark plug gap generally a number in thousandths of an inch like 035 No entry is required Timing Type in most any comment to describe the ignition timing No entry is required Heads amp Cam Head s Type in most any comment to describe the cylinder heads No entry is required Cam Type in most any comment to describe the camshaft or cam timing No entry is required Intake Valve Diameter Enter the diameter of the intake valve in inches This number is not used for calculations and no entry is required Intake Port Volume Enter the volume of the intake port in CCs This number is not used for calculations and no entry is required Intake Rocker Arm Ratio Enter the ratio of the intake Rocker Arm This number is not used for calculations and no entry is required Intake Valve Lash Enter the intake valve lash in inches ex 018 This number is not used for calculations and no entry is required 45 C Performance Trends Inc 2005 Dyno DataMite Analyz
217. ist test by test getting a preview of each test Once a test has been chosen you can delete it by clicking on the Delete button or Open it by clicking on the Open button in this window You can also click on a different test to Preview it or close this window and return to the Main Screen without choosing a new test file If you are sure of the test you want to open you can simply double click on it from the Test List This opens the test without a preview and closes this menu Note for Pro Version You can also save sets of Engine specs to its own separate library This is done very similarly as with the Test Files except you click on File then Open from the individual Engine menus See Figure 3 29 Figure 3 29 Engine File Options Pro version only Go DSMI w Engine Specs YAMAHA Click on File in the Engine menu to Open a set of saved specs or to save the current set of specs in just that screen Open Engine This allows you to build libraries of Engines for easily Save Engine creating new tests in the future Save Engine As New blanks out the current specs and comments Open Example opens a library of example specs provided by Performance Trends Open Saved opens a library of specs you have saved Save saves the current specs to the same name as these specs are currently called Block Stock E Save As saves the current specs to a new name that you will enter Open Example Engine Print Print Blank Worksheet Window
218. k you should read 5000 RPM but actually read 5200 RPM the DataMite is probably correct and your other measurement system is probably wrong The recorded and downloaded DataMite data is much faster responding and more accurate than typical tachometers Other RPM Calibrations Figure 2 16 Sensor Pick the source of the RPM data This can be very critical as for an inertia dynamometer you must have I channel specified as the Dyno Wheel RPM This is the channel that is used for all inertia wheel acceleration measurements which is what the torque and HP numbers are based on For an Absorber Dyno you must specify one of the channels as being for Dyno Tq See Section 2 6 Dyno Specs for details 54 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions The choices for this sensor include e Dyno Wheel RPM required for Inertia Dynos e Other RPM which could be some RPM on an engine pulley like water pump or supercharger RPM e Analog Converter e Fuel Flow e Not Being Used Your choice here will determine what other inputs on this screen are made available Magnets If you have specified an RPM type of Sensor click on the down arrow button to choose the number or magnets on the shaft or wheel Be sure to read the Notes on RPM Data concerning the Engine RPM calibration on the previous page Unlike Engine RPM where you may not be sure of the number of cylinder firings per engine revoluti
219. l fill the whole graph This feature is disabled if the cursor is turned on Also i start the upper left corner well r away from a graph line or the i program may turn on the cursor instead 6000 8000 10000 12000 14000 16000 RPM Figure 3 23 Menu to Specify Graph Axes Scales Pro version only This menu can be obtained 2 ways You can click on View in the menu bar then Specify Scales axes or click on the Set Scales button the right most button on the graph screen Depending on the type of graph data you currently working with one of these 3 sections will be enabled These 3 menu options let you save open recall and delete combinations can of scale settings for standard types of graphs you often make Sie Seales The current scale limits are Oper SavedSettings Fave Current Setting Delete Saved Settings loaded when this menu opens R M Data Time Data i Change any or all these to most Max RPM Max liper zec any value you want Aim Time sec Click the Turn Autoscaling Off button to turn Autoscaling Off to enable changing specs in this AutoScaling ON computer pic scales menu Max Recorded rY Data Min Recorded rY Data Max Y Data Hin Y Data ie Min RPM fo i AateScaling OFF use Specs given above Click on OK to have the graph redrawn to these new scale C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Time Aligning
220. lar to the screen of Figure 2 32 Here you set what channels are displayed on the bar gauges and what the range of the bar gauge will be Exhaust Temp Scale Click on Options then Exhaust Temp Scale and the program will ask for a minimum and maximum temperature to display on the exhaust temperature bar graphs Note that you must have set the Sensor and Calibration in the DataMite specs screen to one of the Exhaust Thermocouple settings for that channel to be displayed on the Exhaust Temperature Bar graph 76 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 33 Changing the Color Color Warnings Warning Settings Click on Options then Bar Gauge Settings to be presented with a screen as shown in Figure 2 33 Here you can select if a particular channel should be highlighted in Yellow if it reaches a Caution limit or displayed in bright red if it reaches a Warning limit This can be very handy if you want the operator to Channel not go above 7000 RPM on the engine RPM or if oil pressure should fall below 3 Chni 3 not being used x 20 PSI IMPORTANT This only affects what happens on the computer R screen It does not provide for a safety to shut down the engine should a eee aming Yes limit be exceeded Caution If Greater Than gt This Limit Warn If Greater Than x This Limit All Exh T Cs Use Same Warning Color Specs Analog Filtering l Note
221. lblock Blowby Performance Trends C 2007 Page 1 Test Comments 350 FOUND THAT 42 TOTAL TIMMING WAS BEST JETS PR 73 SEC 81 MONE TIMING 3 DEG TO 46 Operator 3 24 pm 12 26 2006 Pk Tq 373 89 4400 4 040 Bore Eng Example0001 Corr To 29 92 60 dry Pk HP 361 58 5800 3 480 Stroke Pa amda an am me Mann Faaian d ANG APA AN ad 4 Msala A a E HA ae Example of a Report Printout including a graphics file in this case Performance Trends company logo 233 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A7 6 Preference Settings for Performance Estimates on Main Screen Pro Version Only Choose No to not do Performance Preferences Estimates Choose one of the Yes options either 1 4 mile or 1 8 mile Emailing __Graphing OK performance to be simulated on the main screen with these settings ___Main Screen Filing Syst z TE elp Drag Race Simulation for Main Scyeen Click on Help for an explanation of Simulate Performance Yes 1 4 Mile Restart A Showing these settings Vehicle Weight Ibs 3000 Help Tips Driveline Efficiency Starting RPM 3500 Turn Off all Help Shift RPM max RPM 6000 Tips Don t Ask About Updating Click on this Restore Defaults to restore all Preferences back to the Restate original Factory settings Defaults 234 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 7 New Features
222. le or coil For the Black Box II channels 2 also records RPM The other channels are for 0 5 volt analog channels The 30 channel DataMite II 5 several different types of channels for recording different types of signals 1 RPM Channels 1 5 Selectable Analog Channels 1 16 Preset Analog Channels 17 20 sensors installed inside the main box On Off Switch Channels 1 4 Timer Channels 1 2 Gy ee ah All of these 30 channels except the Preset Analog Channels are accessed through the 9 pin Amp connectors at the front of the main box 190 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A2 1A Signal Inputs on Front Panel of DataMite II Preset Analog Channels 17 20 include accelerometers and power voltage and are installed inside the main DataMite II box OOOO OO Analogs Analogs Analogs Analogs Switches amp RPMs 13 16 9 12 5 8 1 4 Timers Depending on how you order your DataMite II the analog channels from 1 16 may not be configured for anything or can be configured as thermocouple channels for temps or 0 5 or 0 10 volt analog inputs for most any other type of sensor Check the documentation which comes with your DataMite II These analog channels are configured in sets of 4 for each type of input either thermocouple or analog The analog range of 0 5 or 0 10 can be configured for each of these 16 channels individually with jumpers inside the box If thermocouple channels are turned On they usuall
223. lect Al ASON johnson De select All Josef These options let you choose which folders to search All Folders or just the ones you have selected in the list Click here to produce a report of all files meeting the Filter conditions IN ALL FOLDERS in the DTMDATA folder the entire Test Library This way you can avoid looking in each folder separately and can save time a p El Click on this button to return to the File Open menu which will now only show files which fit the Filter Conditions Select And and the Test Files displayed must fit both conditions specified Select Or and the Test Files displayed can fit either of the conditions specified The settings in this screen will display all test files with the word BowTie or bowtie or BOWTIE somewh ere in the test comments and with a Dry Density Altitude between 1000 and 4000 ft calculated from weather info in the Track Conds menu C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSS SS SS a E The Filter Feature is very useful for finding a specific test or to find all the tests which meet a certain set of conditions For example say you want to find a test that Operator Jack ran for Customer Smith on a Big Block Chevy engine Or say you want to check on all tests run with Weber carbs where Weber would be in the Carb description in the Engine Specs menu Or perhaps you want to find all Small Block Chevys that
224. les are also examplesdyno yam 925 cfg YAM 925 Yam1 00 0003 01 02 2000 8 28 9800 possible by tomkraus reed090 cfg teed090 Yam1 00 0003 04 11 2000 12 59 10400 i clicking on examplesdyno black box ii cfg black box ii 02 25 2005 9 82 3000 F t then Edit ormat Click in Graph column to select or de select tests for Graphing Slide button right for more History info Tq HP corr to 29 92 60 dry Legend Titles explanation of the previous page 134 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples e Choose which run or runs you want to graph by clicking in the Graph Runs column The program will ask which runs you want to graph Enter the number for each run separated by a comma See Figure 3 39 Most of your tests will probably be for only 1 run so there is no need to specify the Run The program defaults to Run 1 if there is more than 1 run For dyno runs it is rare to have more than 1 run in a file This option of picking different runs in 1 file is almost never used History Log at Report Screen You can also make comparison reports where the current run is compared to the runs marked Yes in the Report Column See Figure 3 40 This is done almost exactly the same way as done in the History Log displayed at the Graph Screen Figure 3 40 Report History Log Click on History Log to display Test History Log A Dyno DataMite v3 2 Performance Trends f am 900 CFG B amp Back Pr
225. lications i e Inertia Correction Factor etc However these terms may have different definitions Therefore read Chapter 2 to see what these terms mean to the Dyno DataMite Analyzer Occasionally it will be necessary to identify typos in the manual known bugs and their fixes etc which were not known at the time of publication These will be identified in a file called README DOC in the Dyno DataMite Analyzer directory or folder This file can be displayed right in the DataMite Analyzer by clicking on Help at the top of the Main Screen then clicking on Display Readme doc File You can also read it using utilities like NotePad or WordPad Version 3 7 installs to the C Program Files Performance Trends Dyno DataMite v3 7 folder Unlocking Program Options The Dyno DataMite Analyzer is equipped with copy protection This ensures the legitimate users do not have to cover the costs for unauthorized distribution of the program When you first receive the program it is in demo mode All features work in Demo mode In demo mode you can try either the Basic version or the full Professional version for ten days Sometime during those 10 days you must call Performance Trends to obtain an Unlocking Code This Unlocking Code will be for either the Basic version or the Pro Version whichever you have purchased Before you call Performance Trends you should get your disk serial number stamped in blue on the disk your registered name and c
226. m read the signal and then tell the program the known value when it asks you For example lets say you are getting ready to start your engine which has been setting idle not running all night Room air has been a steady 74 degrees so you can assume the engine is 74 degrees also You click on the Read button by TC corr add this to reading and the program reads the signal It then asks you what the true reading should be and you enter 74 It calculates the required TC corr to produce a reading of 74 for this voltage signal C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Most sensors come with a calibration sheet showing how to pick one of the pre programmed sensor types from the Sensor Type list or how to calibrate it Analog Sensor Specs for Custom User Supplies Table Some sensors do not have a simple linear straight line relation ship between signal and the sensor reading For these non linear sensors the program lets you enter a Table of up to 10 pairs of numbers of signal from the sensor and the sensor s actual reading See Figure 2 17a This is also discussed in Appendix 5 Calibrating an Analog Sensor Figure 2 17a Custom user supplies table Enter pairs of calibration points here ia Analog Sensor Specs and the response Calib Csm Table 5v 0 8 1 88 2 105 3 13 Sensor Calibration Table curve is graphed to Volts Data Volts Data ensure the calibration looks cor
227. mance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 2 ASCII Data Files Pro version only You may want to use the results from the Dyno DataMite Analyzer in Figure 3 10 ASCII Files Options Menu other software packages This could be for additional graph capabilities statistical analysis data basing etc Once you have created a report as shown in Section 3 1 click on File to write the ea results to an ASCII file with a name of your choosing The ASCII File s command is possible any time a report is displayed on the screen EF Dyno DataMite v3 2 Peiformance Trends B gt Back Print ReportTypes File HistoryLog You can only save the results currently displayed on the Report screen Operator T If you want to write an ASCII file of a test file you have previously Comments Eng ft Yam 00 0003 run you must open that test file first then create a report for that test P AE file Save as ASCII File xi ASCII File Options Check Appendix 7 page 223 New Features x Comma Separated in Version 3 7 for latest features for eee at creating ASCII data files ASCII File Options Save File Cancel Click on File from Tip Enter a valid file name and path to save Comma Separated ASCII file Refer to page 98 and 102 in User s Manual for definitions of Options Select this option to insert commas between data points Leave this unchecked for data to be arranged in evenly spaced columns
228. me The program will fill in the Test Time and Date based on the computer s time and date This can be changed later by clicking on the Test Time Date at the Main Screen Important When you start a New Test the DataMite Specs and Dyno Specs will be from the current Master DataMite and Dyno Specs which should match your current DataMite and Dyno setup This will be the same no matter what previous test you are starting from 89 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 90 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 91 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 10 Edit Test File Options dicton Bditar thet ohms Main Figure 2 41 Edit Options at Main Screen yee File you will Edit Screen for 3 very important options for s Al Dyno DataMite 3 2 Performance Trends 383 chevy CFG editing the DataMite s test data as shown in Figure 2 41 For all 3 of these File Edit Graph Report TestConds Engine DataMite Dyno Preferences H Delete Beginning or End of File gt Use Engine RPM channel 1 Edit commands you will edit the Current Test which is the test which is l named in the square brackets at the Redetermine Beg End of Runs Use Frequency Channel 2 top of the Main Screen Edit Out Noise Spikes Use Frequency Channel 3 You can also pick which RPM Use Frequency Channel 4 to use to identify the run gen
229. me or RPM Graph ae Many screens and menus What to Graph have a Print button Click Filtering on it to print that particular screen or menu Notes Data Selected to Graph 4 types max Corrected flywheel torque Corrected flywheel HP Make Graph Help Cancel Pritt 124 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 125 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 126 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 5 Data Libraries The Dyno DataMite Analyzer allows you to save recorded DataMite Data and related specs Engine Specs Test Conds etc to the Test File Library under a name of your choosing You can then open these test files out of the Test File Library in the future for comparison or modification The Open window is explained below with explanations Figure 3 28 Test Library Options Click on File then Open from all saved tests to display Test Library shown here Click on File then Save or Save As to save current test and specs to the Test Library otal Tests in Library under this Folder A Vyno DataMite v3 2 Performance Trends yam 900 CFS j Edit Graph Report TestConds Engine Detetite Dyno Preferences Help Pee en Chosen File ALC MAG CFG lick and drag slide bar 383 Chevy CFG Preview o view all Tests in list 4 6L V8 CFG Engine vss ALC MA1 CFG A ALCMAD CPG pe of Run Me
230. ments 16 89 90 112 121 124 Test Conds 6 9 12 16 17 19 31 35 56 62 69 81 84 85 89 90 103 123 127 151 152 153 167 169 172 175 178 179 186 204 205 225 226 Test Data Grid 17 Test Folder Name in Program 24 test time 16 71 thermocouple 59 143 172 189 191 204 226 227 228 Time Align 112 119 164 165 170 Time or RPM Report 101 Time Date 90 154 Timing 46 244 torque 1 9 12 15 16 17 20 23 24 31 34 35 39 51 55 65 68 69 71 72 73 90 95 96 103 149 155 156 157 159 161 162 165 167 172 177 186 192 204 205 212 213 214 215 216 224 225 226 227 228 Torque 17 23 24 26 35 69 70 71 72 73 103 157 167 169 170 186 212 213 214 215 226 Torque Arm 70 72 73 212 213 215 Torque Measurement 69 70 71 72 73 213 215 Torque HP decimals 24 Torque HP Output 24 Total Gear Reduction 71 72 Tq 23 26 55 94 103 111 134 154 170 172 173 204 213 215 216 225 trailing edge 227 Transfer Program 3 Troubleshooting 4 7 4 12 25 56 62 72 76 95 148 154 192 193 199 223 224 228 Turn Off Filtering 132 Type of Test 31 90 226 Unlocking 3 6 8 19 Unlocking Code 3 6 19 Unlocking Program Options 3 6 19 update rate 76 Use Higher Resolution Dyno RPM 24 192 Use MM SS SS Time 102 Jsed 54 69 144 201 ser Specified Max 77 ser Specified Min 77 ccc Valve Dia 46
231. metric Pressure in inches of Mercury you will hear from most any TV or radio weather report This spec is disabled if you are using an Altimeter because the altimeter alone is measuring the air pressure Obs Barometer Hg This input is used for either Uncorr Baro with Rel Hum or Uncorr Baro with Dew Pt It is the actual or observed Barometric Pressure in inches of Mercury at the dyno These barometers measure the actual air pressure at the dyno and will read approximately 1 inches of mercury less than the barometric pressure you will hear from a TV or radio weather report for each 100 feet of elevation This spec is disabled if you are using an Altimeter because the altimeter alone is measuring the air pressure Air Temperature Air Temperature deg F Air temperature in degrees F of the air at the entrance to the air cleaner carb or throttle body Be careful not to get this too close to the carb if there is fuel stand off fuel mist spraying back out of the engine This fuel on any temperature measurement instrument will make the air temperature look much colder than the air actually is This spec is used for all Methods of Recording Weather Data Humidity Relative Humidity Describes the air s humidity level in percent of humidity the air could hold at its present temperature Relative Humidity can be calculated from either wet and dry bulb temperatures or from dew point and air temperature readings by clicking on
232. minor adjustments Click on the down arrow button to select the type to their calibration You of DataM ite you are using You choice here will i ould need to slide the slidebar down to see the 3 sensor or Box Temp Click on most anything in the Channel Settings grid to change it For Used you will toggle between Yes and No For Data Narhe and Senso will be presented with Se When you are finished making changes click on current settings File then Save as Master DataMite Specs 145 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 5 Setting Sensor and Calibration for the Sensors Exhaust and Head Thermo couples are picked here w Other RPM Specs xi Calib Dyno Wheel RPM 1 Magnet w Analog Sensor Specs Std Thermocouple Exh 1 z A Briggs 4 stroke engine fires every revolution like a 2 stroke so set Engine Type to 2 stroke w Engine RPM Specs xi Calib 1 Cylinder 2 Stroke Engine Specs H Cylinders Engine Type 2 Stroke x l Note Pick the cylinders in the engine and 2 or 4 stroke operation For special ignition systems like distributor less or small 4 cycle engines you may have to adjust these specs for accurate RPM readings For example a Briggs motor fires RPM Sensor Specs Sensor Dyno Analog Sensor Specs Type Data Name Std Thermocouple Exh 1 Exh 1 Analog Sensor Sp
233. n 3 3 Graphs To avoid this confusion we provide the alternate option of Increments Filtering Match Main Screen Then whatever filtering and RPM step size you choose in Preferences for Filtering and RPM Step Size is the same for the Graph Screen and Reports Now you will see the same numbers in all 3 places Allow Resize of Current Readings Choose Yes and you can click on the Maximize button in the Current Readings screen and the all gauges will be resized accordingly However sometimes if this is set to Yes the current readings screen seems distorted if it is maximized or in its standard size Then you may want to choose No here Enable Optical Isolator Power The DTM OI Optical Isolator protects your computer from voltage spikes out at the engine traveling back through the DataMite back to the serial port and damaging it The DTM OI is powered from the residual power on the ports and does not typically need a power supply However turning this option On will generally provide more power to the Com Port pins We have not seen any problem with setting this to Yes and recommend doing so if you are using the DTM OI port powered optical isolator Check Appendix 7 New Features in Version 3 7 for several new Preferences which have been recently added 25 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Graphing Printing Program Title Comments Enter most any text here for the First and
234. n Section 2 5 In the standard 4 channel DataMite analog sensor signals must be conditioned by an i Analog Converter which converts the analog _ 1st Value signal into a frequency similar to an RPM j 1 0 volts 0 Ibs signal However as far as you the user are concerned it functions just like an Analog Sensor shown in Figure A5 1 211 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Example of Calibrating the Torque Arm of an Absorber Dyno An absorber dyno is described in Section 2 6 1 It measures torque through a load sensor on its torque arm The torque is the combination of the load at the torque arm times the length of the Figure A5 3 Torque Arm Type of Dyno torque arm See Figure A5 2 As with any calibration you must Absorber impeller or armature connects to engine put at least 2 known inputs into the sensor and then see how the DataMite reads the signal from the sensor These are the 2 Torque Load x Torque Arm Length combinations mentioned earlier For the torque arm load one input is easy That is zero torque With the engine not running preferably not hooked up to the dyno the torque arm load should be zero Load is measured here The second combination is more complicated You must put a Absorber as a force or known load or torque on the dyno The best way to do this is to Case a pressure hang known weights on the dyno a known distance out from the Floats in center of the dyno K
235. n only Describes the size of the engine and type of engine 2 or 4 stroke based on settings in the Engine Specs menu Click on this item to display the Engine Specs menu where this data is contained Correction Factor Is the correction factor based on the Weather Specs entered in the Test Conds menu Click on this item to display the Test Conditions menu where this data is contained Test Time and Date This records the time and date at the time you downloaded the test from the DataMite When a dyno test is started with the New Test command click on File then click on New Test at the Main Screen the computer s current time and date are saved as the test time and date The test time and date can also be changed by clicking on it here at the Main Screen Pk Tq Pk HP Is the highest torque and HP reading for the test Note that this can change if you change the RPM increments or the Filtering specs in the Preferences menu Section 2 2 Operator Figure 2 5 Operator Name Menu This is the name of the operator who ran the test Click on this item Pe EE ack for the menu of Figure 2 5 to be displayed where you can type in a Current Operator new operator name or choose from one you have previously entered Pick An Operator It is always recommended you first check the list of existing operators Desan F so you do not end up with several names for the same operator For example Bob Bobby and Robert may all be for the
236. n the Current Readings screen and gauges unless you have set the Preference Engine RPM is Calculated RPM This is also used for absorber dynos which are geared to be at a constant gear ratio different than the engine This option also affects your choices for Engine RPM Calibration amp Sensor in the DataMite specs screen If you choose Engine no clutch here then for Engine RPM you have a choice of Source for the RPM signal either the Engine or the Dyno See Figure 2 21a Chassis Dyno This is typically used for chassis dynos inertia or absorber where you do have a measured Engine RPM signal You will identify what type of torque measurement by clicking on Torque Measurement at the top of this screen Chs Dyno no engine RPM This is the same as Chassis Dyno above except the program will calculate engine RPM based on the Vehicle Description specs in the Test Conditions screen Total Gear Ratio This input is critical for the dyno types of Engine no Clutch and Chs Dyno no engine RPM where engine RPM is calculated from dyno RPM This spec is also used for calculating Clutch Slip the slip between the Engine and Dynamometer You can click on the Cle button to calculate Gear Ratio from other inputs like number of gear teeth 68 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Menu Commands Back Figure 2 21a Different Sources for Engine RPM Simpl
237. n the information provided with the sensor This will be on a sheet with this menu printed on it with the required information written in This tells the computer the sensor output at 2 conditions Perform a calibration A calibration is the process where you set the sensor to 2 known conditions positions temperatures etc and let the computer read the sensor output at these 2 conditions You can click on the Read buttons to have the DataMite actually read the sensor values for these 2 conditions The process of actually performing a calibration is TC corr add this to reading Figure 2 17 Illustration of a Custom Sensor Calibration Throttle Angle 2nd Value x 4 4 volts 82 deg 1st Value 1 0 volts 0 deg If you have the Pro version of the program and have set the Preference of Allow Correction in Calibration of Selected Recorded Channels to Yes then this setting is enabled and you can change it This only allowed for temperature devices which have built in calibration curves You can enter this value 2 ways 56 1 You can enter it directly knowing that you want to lower the temperature reading say 7 degrees Then you would enter a value 7 less than the current value If there was no TC corr you would enter 7 If there was already a reading of 12 then you would drop 12 by 7 to 5 and enter 5 2 You can produce a known condition click on the Read button and have the progra
238. nd Runs Pro Version Only This option simply explains how to use the Filter find option in the Open from all saved tests command After a brief explanation you will be presented with the same screen as if you had clicked on Open from all saved tests Print Windows Printer Setup 17 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions The Print command will produce a printout of all the data on the Main Screen Many users find this to be a convenient summary of a test The Windows Printer Setup lets you change your Windows default printer paper orientation etc for printing reports or graphs in other areas of the program Unlock Program Options The Dyno DataMite Analyzer is equipped with copy protection This ensures that legitimate users do not have to cover the costs for unauthorized distribution of the program When you first receive the program it is in demo mode In demo mode you can try either the Basic version or the full Professional version for ten days All features are working in demo mode Sometime during those 10 days you must call Performance Trends to obtain an Unlocking Code This Unlocking Code will be for either the Basic version or the Pro Version whichever you have purchased Before you call Performance Trends you should get your registered code number and computer hardware number These are available by clicking on File in the upper left hand corner of the Main Screen
239. nd Engine RPM readings from some previous run Follow the procedures of Case or Case 2 You do not need the vehicle running on the dyno Just type in this pair of RPM readings Case 5 You know all 3 settings If you are absolutely sure there is no need to use this Measure option Otherwise follow Case to check that the Current Setting and the New Setting agree well with each other Absorber Dyno Test Specs Type At this time the DataMite is doing no control of the absorber dyno All tests are being controlled manually and there are 2 basic ways operators run tests 1 Some operators load up the dyno steadily opening the throttle and applying or removing load to the dyno to allow the engine to get up to a high RPM Once the throttle is fully open WOT or wide open throttle and the engine is at the highest RPM for testing the operator will slowly add load to let the engine slowly decelerate For good accuracy it should take 10 seconds or more to do the test a rate of 400 RPM per second or less Once the engine gets to the lowest RPM to be tested the operator closes the throttle and the engine stalls out or returns to idle 2 Other operators load up the dyno steadily opening the throttle and applying load to the dyno to hold RPM somewhat constant low RPM Once the throttle is WOT the operator will slowly remove load to let the engine slowly accelerate For good accuracy it should take 10 seconds or more to do the test a rate of 400 RPM
240. nd RPM sensors to the intended locations You may have to change the standard connectors supplied with the harness The instructions which come with the harnesses must be followed as they are the most detailed and up to date Engine RPM Inductive Pickup Wrap the Blue or Purple wire from the inductive pickup around the engine s spark plug wire You may need to adjust the number of wraps around the spark plug wire for different situations See Appendix 3 Troubleshooting Engine RPM Typical Automotive Spark Signal Connect the appropriate wire from the DataMite II s RPM Breakout Cable to your ignition module s tach or spark output or the negative side of the coil See Figure A2 9 page 197 for examples of ignition sources For uneven firing engines you may need to pull an ignition signal from just 1 coil if each cylinder has its own coil or use a wheel RPM sensor or inductive pickup You can NOT connect directly from the Black Box II to a tach signal You must go through the Inductive Pickup s purple wire which will limit the voltage getting into the Black Box Il Dyno RPM sensors You may want to remove the nuts for stringing the cable through small openings Install these sensors and adjust them to come within 150 to 200 of the magnets initially During testing you may have to adjust them closer 193 Appendices Dyno DataMite Analyzer C Performance Trends Inc 2008 o gt Q amp T D D
241. nd They are set in a screen very similar to Fig 2 17b 58 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Timer channels are the same as switch channels except they are recorded to the nearest 001 second or even finer They are most useful as a lap timer input from a beacon for circle track racing Figure 2 17b Switch Configuration See Figure 2 17b Timers are rarely used for dyno testing iw Switch Specs Ed The Source you choose for a Timer or Switch can be WOT Switch Settings 0 WOT Switch Brake Switch Lap Timer or Other Switch Try to pick an accurate Source so the program can do the best analysis of your test data The Name you use can be most anything of your choosing Switch Sensor Specs Source WOT Switch Name WOT Switch The most useful switch choice for dyno testing is the WOT Switch If the program sees this in the DataMite II s configuration it automatically uses this switch to determine the beginning and end of dyno runs See Figure 2 17b for an Choose the source for the switch input setting this Important Some channel names have special meaning to the Keep Calib Help Cancel Print DataMite program For example if you are recording a temperature you could just select one of the several Thermocouple calibrations like Std Thermocouple Misc and then name it yourself as Exh 2 This will get you a temperature reading
242. nditions Setup Click here to Check or Uncheck these options Checking means you ant to keep these specs for the new test Once the new test is started you can then make modifications to these specs if you want C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions SEE SESE SSE Eee SS a MM want to use for your new test All Categories not checked will be blanked out Blank specs may cause problems with more detailed analysis and won t allow you to keep track of important details about the engine you are testing Most all specs in these categories can also be changed once the test has started with no problems This includes specs which simply describe the test and engine and do not affect any calculations or what is recorded like Engine Specs Test Comments etc Five 5 other critical specs are listed separately at the top 1 File Name for New Test is the file name the program will create for saving the Dyno Data for the new test you are starting The program fills in a default name of the current test name but incrementing the last digit in the name by 1 You can change this name to most anything you like The program will warn you if the name entered is not valid and show you what is wrong 2 Operator for New Test is the name of the operator for this test Click on Pick to pick an operator name already used or to enter anew name The program defaults to the operator of the current test 3 Engine for Ne
243. ne Specs done in Metric Units or English Help Performance Est Units Here you can select to have the Engine s Inertia be taken into account for Absorber dyno runs This has always been Units for Entire Program English Restart possible in the past for Engine Showin j j Units for Engine Inputs Metric Help Tip e netelias s Absorber Dyno Allow Correcting for Yes v Enoine Inestia Elfocts Turn Off Note You must also ask for all Help this correction to be done in DataMite III USB Tips the Test Conditions screen for it to actually be done Frequency Signal Trailing Edge 235 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 8 Automated Coastdown Testing Pro Version Only Starting a New Test Download Data CtrltN Cancel don t start new test lt Esc gt Current Readings Weather Help Operator p Customer File Name for nE New Pick a ol _Assign Name for Add Typene New Test Test New Test Choose the Test Type of Coastdown at the New Test Screen Test 350 HOLLEY HEAD KIT 28 Example0001 Dunnaway Chev v Coastddn Pick Which Specs to Keep based on current file 350 HOLLEY HEAD KIT 27 CFG FA N atakiita a a Tune Natahite III 1ISR Test Conditions Options if Back Help Type of Test Or choose the Test Type Type Meas Ta HP ftom Dyng of Coastdown at the Test Type Not Used ine Test Rl Type Not Used Conditions Screen Metho et Used c E M
244. no is that if the pump changes more internal leakage changes in efficiency etc the measured torque and HP results will change If 1000 PSI was 10 ft lbs when the pump was new 1000 PSI may be 11 ft Ibs when the pump gets older This type of torque measurement is very similar to the Torque Arm type Many users simply identify their hydraulic dynos as the Torque Measurement Type of Torque Arm Figure 2 25 Hydraulic Pump Pressure Dyno Engine Pump Pressure Control Valve Gauge Regulates Load Reads On High Pres Load Pump Outlet w Oil Return Line to a Oil Reservoir for Storing and Cooling Oil 72 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 73 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 Current Readings This screen displays the current readings of selected channels from the DataMite Some channels are displayed on the two gauges All channels are shown in the boxes below the gauges For the DataMite II there are only 16 boxes for numbers so you must select which channels to view either the RPM and Accelerometer channels or the other 16 Analog Channels Figure 2 30 Current Reading Screens Current Readings screen eee Close back Options ace Recorder Help Click on Options to change the screen update rate what is displayed on the gauges gauge scales smoothing etc Click on either of these option buttons to display the digital numbe
245. no is the one to use e If you want dyno numbers to use in a magazine article for other people to compare their dynos with you are better off with the accurate dyno e Ifyou want HP numbers to use for certifying an engine for example selling an engine with a guarantee it produces 150 HP you are better off with the accurate dyno For most dyno testing repeatability is more important Fortunately repeatability is also easier to obtain To Improve Repeatability e The most basic thing for improving repeatability is Don t change things This means that you should not tweak calibrations of the Weather Station or DataMite sensor calibrations to make minor improvements e Always run the test exactly the same way Always start the test at the same head or block temp for air cooled engines and water and oil if possible temperature for water cooled engines Some engine testers believe in making 2 runs and actually throwing away the first run The first run is just to get everything up to temp and cleared out for the real run e Always run the test exactly the same way part 2 Always try to do the same acceleration or deceleration rate for absorber dynos and a very steady rate This can be difficult and is one main reason inertia dynos can be so repeatable because the acceleration rate is controlled by the inertia Tip The slower the acceleration or deceleration rate the less impact on accuracy will be differences from test
246. nowing the weight and the Torque Arm Bearing Torque Arm Length distance you can calculate the torque you put on the dyno You may have gotten a calibration kit with your absorber dyno to do this If not you will have to make one There are basically 2 ways to do this shown in Figure A5 4 If you bolt a calibration arm to the dyno case you will probably add a certain amount of torque to the dyno unless the arm is perfectly balanced from side to side The additional weight of the arm does not matter as it is absorbed in the bearings holding up the dyno itself The permanent Calibration Arm method of Figure A5 4 is more accurate as you don t have to be so exact about the balance of Figure A5 4 Types of User Fabricated Dyno Calibration Kits Temporary Calibration Arm Must be perfectly balanced Permanent Calibration Arm Must remain installed after so it does not add a torque when you install it the calibration is done since it adds a torque to dyno Bolt to Temporary Arm can be Bolt to removed when done Dyno Case Hang weights Hang weights from here from here Torque Arm for Torque Arm for calculating calib calculating calib bration torque bration torque the calibration arm If you choose that method be sure the arm does not stick out so much you keep banging your knee into it You will also need a known weight that will put you in the upper end of the torque range you will be measuring For example if you want to measure
247. nsor and Calibration you will be presented with new screens to change the current settings 51 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions SSS SSS ee ee a ea ry Is the type of DataMite you are using either a 3 Channel very old 4 Channel DataMite II 31 Channel or Black Box II system You choice here will affect how the Channel Settings grid is displayed and how you can specify various channel s Differences between different systems are further discusses at the end of this section and in Appendix 3 The DataMite II data logger needs information from the DataMite program on your computer to work correctly This is information like sample rate segments which channels are being used etc The program asks the question shown in Figure 2 14a when you first enter the DataMite specs screen This is to help ensure the program s configuration matches the DataMite II box s configuration In addition when you make changes in this Figure 2 14a Checking DataMite II Configuration DataMite screen the program will ask if you want when Entering the DataMite Specs Screen these changes saved sent to the DataMite II box Check DataMite II Box Configuration when you exit this screen You can force these changes to be saved to the DataMite box by clicking on File then Save as Master DataMite Specs at the top of the DataMite screen program s configuration 7 Do you want the program to see if t
248. nvenient way to index the calibration Dyno Standard calibration has drifted up to match a certain value at a certain signal This is most often Tq reads 3 3 ft Ibs at 524 volts used to re zero a sensor which may have drifted slightly 100 Slope of line Figure A 5 7 shows the original Dyno Tq calibration has calibration drifted up from its original calibration It now reads 3 3 ft lbs stays the same at 524 volts You can simply type in a correction of 3 3 ft p Ibs Or with the dyno reading 0 ft lbs you can simply click on the Read button next to the Correction input See Figure 5 8 New calibration w correction the program now shows 0 torque at 524 volts just like when it was first calibrated Volts 5 Notes Other sensors are calibrated much the same as the dyno torque sensor For example To calibrate a throttle position sensor With the throttle closed type in 0 and click on the Read button for the 1st Value Then open the throttle fully type in 90 degrees or possibly 85 degrees would be more exact and click on the Read button for the 2nd Value Click on Keep Specs and you re done To calibrate a pressure sensor With zero pressure on the system crack a line fitting to let all pressure bleed off type in 0 and click on the Read button for the 1st Value Then Tee in a good pressure gauge to the same source as the pressure sensor and run the system to produce some fairly high pressure Read the pressure off t
249. o the left of it to display the contents of the DTM20 folder You should now see the DIMDATA folder Right click on the yellow DIMDATA folder icon to display the menu of options Click on the Copy command to copy this entire folder all test files in the standard Test File Library 207 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A4 2 Copying Files with Windows 95 98 ME XP 2000 or NT Windows Explorer Find the DTM20 folder under the PERFTRNS PTI folder usually on the C drive Click on the box to the left of a folder to show its contents folders GX dtm20 olx Fie Edit View Favores Tools Help Click and drag the slide bar Back gt Z Seach Fy Folders M E X A E button to move Address C dtm20 Go up and down the list of Folders x Name Size Type Modified pera C PageMAr a C cac File Folder 5 10 2005 11 00 AM i PertT fis pti Ci cadeno File Folder 5 10 2005 10 59 AM The contents SY m20 A dtmdata je Eelde 5710 2005 10 59 AM CALC AC ENGINE File Folder 5 10 2005 10 59 AM C COMBO C ReportFormats File Folder 5 10 2005 10 59 AM fold i 0 dmdaa gt TExT File Folder 5 10 2005 10 594M a Sr ih Ma eft is shown 27 object s Disk free space 5 86 GB 4 83 MB g My Computer Ui here inclu ding both folders H A PageMar and files i A PerfT rns pti of the open clicked on Re
250. o use these properly then do not make those checks Improper use of a volt ohm meter can cause damage to the DataMite II Black Box Il or DataMite USB and will void your No Power Light Coming On e Check that power supply is plugged in e Check that power supply is putting out 12 20 VDC with a volt meter with only the volt meter plugged in If you can check the power with the Black Box or DataMite plugged in the voltage will drop but should stay in the range of 10 15 VDC See Figure A3 1 for other power checks e For the DataMite II the push button Control Panel must be plugged in for the power light to come on e If the Black Box or DataMite do still communicate with the computer checked with Check Boot Message below then the power light is probably bad Figure A 3 1 Checking Power from DataMite II Black Box II and DataMite USBs 8 pin Analog 4 n A 6 pin RPM channel w og channel DataMite III channel you should USB you you should get about TO should get get a n 10 15 volts about about 5 0 k volts DC across volts DC across across these pins these pins these pins For the Black Box Il DataMite lII USB and DataMite Mini USB these are the connectors directly on the box For the DataMite II these are the connectors on the short 1 ft breakout cables This picture shows looking in the end of the connector which has male metal pins Be sure your voltmeter is set to DC Volts or you may damage the Black Box or DataMi
251. ode number and computer hardware number The registered name and code numbers are available by clicking on file in the upper left hand corner of the Main Screen then clicking on Unlocking Figure 1 1 Menu to Unlock Program Options Program Options A screen will appear as FJ Unlock Form Code to Extend Demo 239235212 842897 shown in Figure 1 1 Performance Trends will provide you an Computer Hardware unlocking code number Type in the Registered Name Joe Smith Caneel unlocking code number and click on OK Registered Code 14666 If you typed in the number correctly you will be given a message that the program is Enter Unlocking Code ffs Help permanently unlocked to either the Basic or Pro mode The program will only run on Click on Help for more info on how you use this screen to unlock this program this one computer If you want to run the program on another computer you must install it obtain the computer hardware number and registered code number as shown in Figure 1 1 and call Performance Trends for a new Unlocking Code for that computer There may be a charge for additional computers You may need to transfer the program to another computer like when you buy a new computer If so install the program on the new computer It will run for 10 days During that 10 days call when you can have your new computer up and running Give Performance Trends the information for the new computer and they will give you a new
252. of Data Starting Time or RPM Is the first or lowest time or RPM for the report If you have selected a Time Report If you have selected All Data for What to Report then this is the time after the start of first data the DataMite recorded If you have selected Just Power Run 1 for What to Report then this is the time after the start of what the program saw as being the start of the first dyno power run If you have selected an RPM Report Your only choice for What to Report is one of the power runs like Just Power Run 1 This is the lowest RPM or starting RPM for the report If you have selected a MPH or KPH Report Your only choice for What to Report is one of the power runs like Just Power Run 1 This is the lowest RPM or starting RPM for the report To be sure that all data is reported for a particular run enter 0 for Starting RPM or Time and a number much larger than possible for the Ending RPM or Time something like 30000 Ending Time RPM MPH or KPH Is the last time or highest RPM for the report See Starting Time or RPM above Time Increment or RPM Increment Is the step size between report times or RPMs for the report See Starting Time or RPM above The smaller this number the longer and more detailed the report To report RPM data at every 250 RPM say at 2500 2750 3000 etc enter 250 for the RPM increment Note on data reporting Lets say you specify reporting data at 250 RPM increments If your report includes
253. og User Specified The data from any analog channel can be graphed The raw analog signal will be converted to data following the Sensor amp Calibration info you ve entered in the DataMite specs screen the DataMite Program as 0 closed or 100 open RPM sec means the engine s RPM increases 200 RPM in 1 second Dyno wheel Dyno RPM Dynamometer speed in revolutions per minute as recorded by what ever RPM channel you have specified as Dyno RPM on the DataMite Gear Ratio entered in the Dyno Specs menu unless there is clutch slip Clutch converter Cltch Slip Clutch slip in It is critical you have the Gear Ratio in the Dyno Specs correct slip for Clutch Slip to be accurate Observed Obs Tq Is the observed uncorrected torque measured at the dynamometer In the Pro flywheel torque version you can include Coastdown Data to estimate losses in any gears or chains between the engine and the dynamometer in the Dyno Specs menu You can also request the program to try to correct for engine inertia effects Test Conds menu and enter Short Block Specs in the Engine Specs Menu Then the Observed Flywheel Torque is very close to be what the engine produces at its crankshaft under steady state non accelerating conditions Observed Obs HP Is the observed uncorrected horsepower calculated from Observed flywheel flywheel HP torque above See Observed flywheel torque above Corrected Is the Observed flywheel torque described above corrected
254. on the Magnets you pick should be the same as what are actually mounted If not or the recorded data is noisy you have some other problem with your setup See Appendix 3 Troubleshooting Or Sensor Type If you have specified an Analog Converter type of Sensor click on the down arrow button to choose the type of sensor For most the program will know the calibration simply by your choice However if you choose Custom user supplies specs then the lower section called Analog Sensor Specs becomes enabled See Analog Sensor Specs on the next page Multiplier If you selected Other RPM or Fuel Flow as the Sensor then the Multiplier spec becomes enabled For Other RPM this allows you to multiply this RPM by some number Often this is used by motorcycle racers who multiply clutch RPM by the gear reduction between the engine and the clutch This allows them to see when Engine RPM matches multiplied clutch RPM then they have zero clutch slip For Fuel Flow this multiplier is used to determine what fraction of a gallon of fuel is indicated by each pulse derived from the K factor of the flow meter To obtain correct mass flow lbs Hr fuel flow the program needs the Specific Gravity of the fuel you are using This is entered in the Test Conditions screen because this could change often If no Specific Gravity is entered it is blank the program assumes a Specific Gravity of 75 Figure 2 16 Senso
255. on Add New you use the new folder of BRIGGS This folder will be used for you will use for all Briggs Tests 5 As you should do for most all inertia dyno tests you choose the Data Type Measure Tq HP from Accel The New Test screen should now look like Figure 4 14 When you are ready to start downloading data from the DataMite click on Start New Test at the top of the screen If some critical specs have not been entered the program will warn you and ask you for it at that time The program will fill in the Test Time and Date based on the computer s current time and date This can be changed later by clicking on the Test Time Date at the Main Screen The program will now start to read the DataMite data as shown in Figure 4 15 After the data is read from the DataMite the program performs 2 important functions 1 It checks for noise spikes and eliminates all that it can A noise spike is basically a bad data point caused by electrical noise or vibration in a sensor See Section 2 10 Editing Out Noise Spikes and Appendix 3 Troubleshooting 2 It checks to find the beginning and end of the actual dyno test run based on pre programmed criteria of what a dyno run looks like 154 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 15 shows the messages the program could give to let you know how the data appears If you get several noise spikes you should investigate the source Noise spikes in
256. ong file names will fit within the border We ve added a new Preference for graphs on Main Screen for Dyno Version Now you can choose that torque and HP can be on different scales This is not available if you are including previous test results in the graph We ve added an Open Edit Save These Settings button and commands to Report Specs screen This allows you to save Report Settings Format much like is possible in the Graph Screen for several common combinations of specs to quickly reproduce report settings you want to create often See Figure A7 1 This is available in the Pro version only We ve added a Restore Defaults button in the Preferences screen If you have made changes to Preferences and now the program does not seem to be working like it was before click this button to restore the original factory settings See Figure A 7 6 We ve added several new features for writing ASCII data files from Reports See Section 3 2 ASCII Data Files for background info See Figure A 7 11 This is available in the Pro version only 224 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Starting and Running a Test We ve added a Start Dyno Run button for starting a new test This makes it more obvious how you start a dyno run for beginners See Figure A7 2 Program will now accept more ups and downs in the engine dyno RPM for an absorber dyno run doing a Start High Drag to Low RPM run How muc
257. or The installation program should start automatically bringing up the Performance Trends Installation Wizard This program can install most any of our products in Demo mode including the Dyno DataMite you just purchased Select click on the button for Figure 1 1a Installation Wizard A Performance Trends Installation Wizard Options Movies Product Comparisons Engine Performance Programs Drag Racing Tools Install This Program View _ Install This Program View ine Analpz 3 Brochure Brochure Drag Racing Analyzer Visit our Website www perFormancetrends com Data Logger Programs instal Ths Propam Viow Dyno Datatgite _Brochwre Engine Analyzer Plus_ _Brochure Drag Race Analyzer Pro Brochure Brochure Brochure Brochure Brochure Practice Tree Engine Analyzer Pro_ _Brochure Engine Building Tools 4 Link Calculator Install This Program View Prelim Race Clutch Comp Ratio Calculator _Brochure CamAnalzer r Circle Track Road Race Tools Brochure install This Progam View Click here to start Brochure Brochure J Rotating Inertia Calc Coil Spring Tester__ Dyno DataMite and the installation will begin If you have some problems or error messages during the start up of the Installation Wizard you can possibly bypass these problems by running the Dyno DataMite installation directly Th
258. ord BOWTIE or the word bowtie or the word BowTIE anywhere in the comments The program will not find files with the words Bow Tie with a space between Bow and Tie Therefore it may be smarter to just look for the word bow to avoid this problem Note however that if you do this the program will also find tests with the word elbow or crossbow for example in the test comments 132 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 History Log Pro Version Only Click on File then Open from History Log at the Main Screen to obtain the History Log shown below in Figure 3 37 This screen shows a summary of the results for the last 25 100 tests you have worked with started new opened graphed etc The number of tests in the log 25 100 is selectable in the Preferences menu at the Main Screen When you work with a new test it is added to the top of the History Log and if the Log is full the last run drops off the bottom of the list In the Pro Version the History Log is an alternate way to Open tests which have been saved to the Test Library The advantage of the History Log is it lists the tests you most recently worked with at the top Also see Section 3 9 Run Log for a comparison of the similarities and differences to this History Log Figure 3 37 History Log and Options Click on Test Title to Open that Test File Click on File then Open from History Lo
259. ormance Trends Black Box Weather Station Use Calc Value Help Cancel Print 146 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSeS SSS SSS SSS SSS C K m mamaaaaaaaaaaaaaaaasamaaam maaa Now do the same for the Dyno Specs as you did for the DataMite specs Click on Dyno to obtain the screen shown in Figure 4 6 Again these were the Dyno specs for the BLACK BOX II test You should enter the specs for your inertia wheel system Your inertia dyno s single main wheel is 24 inches in diameter and 1 125 inches thick 1 1 8 inch It is on a 1 inch diameter solid shaft a 5 2 inch drive sprocket on it 52 teeth which 16 inches in diameter and 7 25 brake disk which is 16 inches thick Your dyno also has a special one way clutch which lets the engine decelerate quickly at the end of the run while the inertia wheel itself decelerates more slowly Figure 4 6 Dyno Specs for Your When finished changing these specs click of File then Inertia Dyno Pro version Save as Master Dyno Specs to save these changes Check components that your system has un check those it does not Note that Brake is checked for the disk brake Clutch is checked for the one way clutch and Include Misc Component A which is the 52 tooth sprocket a Inertia Dyne Specs Note that these other Back Fie Torque Measurement Est Regdired Inertia Current Readings Help components contribute Sections in Main Wheel x of
260. ou enter accurate weather Type of Test l Dyno Conditions Test Room Weather Conditions Method of Reading Weather Data conditions for each test With the Internal Weather Station these readings are taken automatically for each test ou can see the readings Recorded by Weather Station Obs Barometer Hg taken on this screen but can not change them Before you save the data these weather Air Temperature deg F Dew Point deg F Elevation feet dhtais graphed and analyzed p2 Density Altitude ft 1879 Dry Density Altitude ft 976 readings are from the prior test These will be updated once you save the data These specs are for information only and can be left blank if you want You can enter head temp for water temp for this air cooled Briggs engine If you are recording fuel flow the Fuel sp g is used to convert fuel into fuel mass flow of Ib hr Once you set these Correction Factor specs it is best to not change them Otherwise it will be ifficult to compare different tests or graphs To Correct for Eng Inertia Effects you need reasonably accurate Short Block Specs to estimate the Engine s Inertia 153 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples There are five critical specs Figure 4 14 New Test Menu for Starting This New Test listed separately at the top Most of the
261. own at the top of the Main Screen If you want to save your changes to the same name simply click on OK This will update the current test file with your latest changes If you want to save the current set of test specs with your changes to a new name and leave the current test file in the Library unchanged then click on the suggested file name and modify it as you want For example in the window shown above you may want to add 2 to the current name CAMTEST to create CAMTEST2 to indicate this is the 2nd revision of CAMTEST This is the safest way to make changes because you can always return to an earlier version and see what you had done The test name must have a CFG extension That means that the test name can be most any name of up to 50 characters or numbers but it must end with the 4 characters CFG If you do not add the CFG to the name itself it will be added to the name by the program The DataMite Analyzer is a 32 bit Windows program and can use most any type of file or folder name The names can be up to 50 characters long and can include spaces and upper and lower case letters However certain characters can NOT be used and the program will warn you if you try to use them like Illegal characters for file names Liepa 129 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSS EEE MN Test files are saved to folders directories you have created in the DIMDATA folder directory in the DTM20 folder
262. pecs keep this box checked if you want to copy the curent test s Test Conditions to the New est Test Comments Keep this box checked to use comments below for the New Test Note that you can erase and change these comments here Proform Intake 950 HP 2 00316 Crower Cam 38 Timing shaffer oil Segment 2 is last one recorded Once a New Test is started you can easily erase or modify any of the specs listed above Any specs not selected to Keep will be mostly blank when you start the New Test Download this Segment Cancel Click here to stop the downloading process and abort downloading and saving the data Message to acknowledge data was read from the 74 Noise Spikes have been found in this data You can have the program Edit them out now answer Yes below or Edit them out at a DataMite II later time answer No below Edit Out Noise Spikes Answering No is good for debugging the source of the Noise DataMite Analyzer Spikes Then you can click click on Edit at the top of the Main Screen then Edit Out Noise Spikes to eliminate noise spikes at a later time Data Download Complete Do you want to Edit out Noise Spikes now If Noise Spikes had been found you would have gotten a message like this stating that the program has found what it believes is bad data points You can elect to have the program edit them out now recommended for beginners or Not edit them now so you can t
263. pendix 5 for calibrating a Torque Arm type of dyno Absorber impeller or armature connects to engine Torque Load x Torque Arm Length Load is measured here Absorber as a force or Case a pressure Floats in Bearing Torque Arm Length C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 24 Torque Arm Dyno Screen The torque channel from the DataMite specs is identified w Dyno Specs here Channel 6 must be identified as Dyno Torque for a Back File Torque Measurement Curent Readings Help Torque Arm absorber type of dyno analog channel 4 for J Black Box II analog channel 1 for DataMite II The tord Torque Channel is cufrently Channel 6 See Appendix 5 in manual to calibrate the torque channel Depending on your choice of Dyno Type Total Gear Ratio fot se f Help may or may not be enabled It is shown enabled here Dyno Type Pick a type of dyn Total Gear Ratio 40 cd 2 6 2 Hydraulic Pump Pressure This type of dyno is similar to the Torque Arm absorber except without the floating bearings and the torque arm For example you could hook up an engine to a hydraulic pump as shown in Figure 2 25 By controlling the Control Valve Opening you can load up or unload the engine You can read the load on the engine with the pressure gauge To convert pressure into torque you need a performance curve for the pump you are using The major disadvantage of this type of dy
264. ph Scales Displaying Test Comments and Correction Factors Setting Grid Styles These are discussed in this next sections 113 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Printing Figure 3 17 shows the options for printing graphs and how to access these options Figure 3 18 shows the screen for changing the Windows Printer Setup Figure 3 19 shows how you can add information to a graph printout by clicking on Format then Edit Printed Comments and Data Output Figure 3 17 Printing Graphs Clicking on the Printer button is the same as clicking on File and then Print Color Click on File to display the 3 w DataMite Analyzer 2 0 REED09 CFG print menu options View GraphType AddTest History Log 5 Test Help a RIG aaEn I Add Test to Graph ele We Lele a e af gt tO p grap elal laches color solid lines Print Color solid lines 37 0 Print Black amp White dashed lines pick bets to prin e grapi in l reat Pink Ochna black amp white various styles of Using Dot Matrix Printer dashed and solid lines _ Not Using Dot Matrix Printer Click here change the printer a Exit i or printer driver page orientation etc J Select between these 2 options for your printer type If you are getting a break in he border around a printed graph try the other option Preferences Menu includes other Graph Printing Options pee ee Figure 3 18 Standard Windows Printer
265. played on either Gauge 1 or 2 Then select the Range for the display either a pre programmed range our you can enter your own custom range by choosing User Specified the first choice for Range Keep Options Help Cancel Print Se aS Sees Sea pene SSS ee Ses Seger ers ee ere see fore nn se see ees ae Seem Sea ewSeeypeessees Trace Recorder Data C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Click on Trace Recorder then Trace Recorder Data at the top of the Current Readings screen to be presented with the screen shown in Figure 2 34a This works the same as the other screens for setting which data to graph and what scales to use One difference here is both data types are graphed on the same graph The numbers on the graph for the Y axis are for Trace Recorder 1 data Trace Recorder Data Click on Trace Recorder then Trace Recorder Speed at the top of the Current Readings screen to display the question shown if Figure 2 34b The higher the number of seconds the more data you can see on the trace but you will see it with less detail Figure 2 34b Setting Trace Recorder Speed Trace Recorder Time xi Enter the number of seconds you want displayed on the trace a number between 15 and 1500 Cancel a 78 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 79 C Performance Trends Inc
266. ples of noisy data versus noise spikes See Section 2 10 for the process to Edit Out Noise Spikes If an occasional noise spike appears in your data this is normal 1 30 per test Simply use the program s Edit feature to get rid of them Filtering is designed to help noisy data See pages 96 and 97 However if the problem is severe or if it is possible to eliminate either the noise or noise spikes the following suggestions may help For engine RPM this can be caused by e Electrical noise from ignition system See Noise Sources described below e Point ignition systems can cause problems at high speed where the points can bounce which looks like additional spark firings e If you are using an Inductive Pickup with a wire tied to the spark plug wire the signal may be too strong or too weak It is hard to predict which way to go to try stronger or weaker signal See Figure A3 3 With the Inductive Pickup Clamp adjust the sensitivity adjustment screw e If your engine has an unusual ignition system very new production system distributorless etc there may not be a clean signal the DataMite can use The DataMite and Black Box need special signal conditioners to work with magneto or uneven firing ignition systems They are designed to work on magnetos on small engines like Briggs amp Stratton and 2 stroke kart engine Figure A3 3 Inductive Pickup Adjustments for Signal Strength Typical Installation
267. portFormats TEXT Vehicle Explore aaa plxvebis Click on Copy to copy the entire contents of the Scan Directory with PestPatrol Se Ss DTMDATA folder the entire test file library DO NOT customer pti 1KB fly customer tmp 1KB click on Cut dtconfig pti 7 KB Sharing dtcurdat PT 4KB Scan for Viruses dim exe 4 836 dtm pti dll 4KB BEGG headnum pti 1KB headnum tmp 1KB operator pti 1KB Right click on the Floppy drive icon D ra g s j d e My Gace h Explore Open bar to the Find top of the Backup Then click on Back Forverd Up ff j list to find CEED SIAE Copy Disk Paste t t your 7 ae Add to Zip er All Folders j Floppy disk ssa Sharing copied in this A Desktop drive ely example the E S My Computer usually A Format entire a ae A Past DTMDATA ww a E AOL Instant Messenger folder to the disk in the E Aol25 Floppy drive bd Create Shortcut Properties 5 AOL Instant Messenger H A Aol25 ec aces Peer mama mAT Ter ran arera Now you must tell the computer where you want to copy the files to Click and drag the slide bar for the left section of the Windows Explorer screen to the top You can also click on the up or down arrow buttons on the slide bar Look for the Floppy Drive icon usually the A drive Put a n
268. r values of either the RPM and Accelerometer Eng RPM 8 6840 Fa eee channels or the other a 1 16 Analog Channels ie l Current Sensor Readings Magnet ws Current Readings Close back Options Trace Recorder DataMite Commands Hel sb ai iad Nea iti Current Readings screen for Black Not Recording e Box II includes a Start button or a sd press the lt F1 gt key Once recording D has started this button turns to a yn wheel Rising Stop button or you can press the lt F2 gt key to stop recording gRPM 20000 2000 By setting one of the Analog channels in the Black Box II configuration to a Recording Switch o e000 o e000 f 2345678910 you can use this switch to start and Install Optical Isolator for this screen to avoid possible computer damage Exhaust Thermocouples stop recording but you must still be pert aS a on this screen to do it Eng RPM 1 5 n a n a Humidity Cylinder 2 Stroke Dyno wheel Rpm Ina Exh 1 These 3 channels are reserved to Head Temp 1 i always be weather sensor channels Check Appendix 7 page 223 New Features if Version 3 7 for new features 74 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions The Current Readings screen is typically the screen you will watch when you do your dyno runs For the Black Box Il DataMite
269. r Specified this spec will be enabled Enter the highest User Specified Min number you want to see on the gauge here The gauge dial is divided into 6 sections Itis less confusing if the difference between the User Specified Max Dial Gauge 2 and User Specified Min is evenly divisible by 6 For example if you set User a Specified Max to 60 and User Specified Min to 0 each gauge increment will 4 Chni 4 be 10 If you set User Specified Max to 70 and User Specified Min to 0 each Range User Specified H gauge increment will be 11 67 which is much more confusing EELE User Specified Min User Specified Min Note If you set Range to User Specified this spec will be enabled Enter the lowest Pick one of the DataMite channels to be number you want to see on the gauge here The gauge dial is divided into 6 displayed on either Gauge 1 or 2 Then select sections It is less confusing if the difference between the User Specified Max PERO CE E rf ee Aten and User Specified Min is evenly divisible by 6 For example if you set User RRE range 2 4 Specified Max to 60 and User Specified Min to 0 each gauge increment will be 10 If you set User Specified Max to 70 and User Specified Min to 0 each pan Ont Hel c Il Print gauge increment will be 11 67 which is much more confusing _Keep Options Herp Cancel Print Bar Gauge Settings Click on Options then Bar Gauge Settings to be presented with a screen simi
270. r and Calibration Screen Other RPM Specs x Other RPM Channels Calib Other RPM 1 Magnet x 2 2 RPH Sensor Specs Magnets 7 zj Analog Sensor Specs iD st Value Engineering Units a Ist Value freq hz Read C 2nd Yalue Engineering Units zi 2nd Value freq hz Read Note Pick the location of the sensor and of magnets or targets if a different type of sensor is being used on the rotating component Keep Specs Help Cancel Print Screen for Analog Converter Pick Analog Converter as Sensor Other RPM Specs Std 0 15 PSI Std 0 70 PSI Std Thermocouple Std 0 5 Volts 1st Yalue freq hz Read Magnets spec is now called Sensor Type Click here for list of Sensor Types if using an Analog Converter 55 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Data Name This is the Data Name shown in Column 4 of the Channel Settings grid of the main DataMite screen shown in Figure 2 14 This was discussed at the beginning of this section and can be changed in this screen or changed directly from the DataMite Specs screen Analog Sensor Specs for Custom User Supplies Specs 1st Value Engineering Units 1st Value Freq hz 2nd Value Engineering Units 2nd Value Freq hz These 5 specs are used to calibrate a Custom Sensor to read most anything you want These specs can be used 2 ways Type i
271. r leave Engine blank If you select this option it is strongly recommended you set Std Graph Title Created in History Log preference described above to Test File Name Warn if Run Type Not Dyno Run The DataMite program lets you do different types of runs the 2 most common are dyno power runs Meas Tq HP from Accel for inertia dynos or Measure Tq HP from Dyno for absorber dynos or a Custom run Because you are usually doing Dyno runs you can set this Preference to Yes so the program will warn you if you are doing a new run and have not set the Run Type to a Dyno Run type Not correctly setting the Run Type to a Dyno Run type for dyno runs can cause very inaccurate and confusing results Auto Check Other Com Ports Choose Yes for this option and the DataMite software will always check all 4 likely Com ports on your computer if the DataMite can not be found Set this to No and the software will always use the Com Port specified in the DataMite screen See Section 2 5 Specs for RPM Graphs and Reports Choose User Sets Increments Filtering 50 RPM in Graphs and the filtering and RPM step size for graphs and reports can be different from each other and different from what is done on the main screen This can cause confusion to some users because the Peak Torque on the Main Screen can be different than what you see on a Graph Screen which can be different than what you see ina Report There are reasons for this as explained in Sectio
272. r maximum HP over the RPM range you will be using Then select gearing and shift points to keep the engine in the highest HP RPM range Notes on Multiple Tests Pro Version When you click on Add Test in the Pro version and then pick a test to add you are actually adding that test to the History Log as shown in Figure 4 36 The program puts a Yes in the Graph column All tests marked Yes in the History Log will be graphed as long as there is enough room in the graph legend If the tests you wanted to graph were already in the History Log you could have added them by opening the History Log and manually putting a Yes in the Graph column See Section 3 7 History Log Reports p Figure 4 37 Report Options Menu Another useful analysis tool are the reports Reports are convenient because a complete w Report Data EJ dyno run can be summarized in just one Basic Report Specs Engine RPM number like Average Corrected HP Click Type Pick Individual Items ie Pe on Back at the top left of the Graph Screen Ti RPH R t Chni 4 to return to the Main Screen Then click on ZS Spon RPM Engine Accel RPM sec Reports and select the Report Options menu What to Report Just Power Run 1 v Dyno wheel RPM shown in Figure 4 37 ilteri Calcd gear ratio 8 a Filtering None Clutch converter slip Observed flywheel torque From the graphs you can see that the highest Range of Data paca aia HP HP readings are in the 7000 to 1
273. r several command options some which are fairly self explanatory Back ok closes this menu and returns you to the Main Screen File opens up several typical Windows options You can open and save these Engine specs as separate files This allows you to easily change these specs to match a different engine with only a couple of clicks See Section 3 5 Data Libraries New will blank out all the Engine Specs Engine Comments and the Engine File name will be called Untitled Open Example Engine File will open a typical Dyno DataMite Analyzer File Open menu where you can pick a set of example Engine Specs loaded by Performance Trends Open Saved Engine File will open a typical Dyno DataMite Analyzer File Open menu where you can pick a set of Engine Specs which you have saved using the Save command in this menu Save Engine File will open a typical Dyno DataMite Analyzer File Save menu where you can save the current set of Engine Specs and Engine Comments under a name of your choosing This name then appears at the top of the Engine Specs menu This name should not be confused with the Test File Name which appears at the top of the Main Screen The Test File includes all the Engine Specs and Test Data and therefore includes the Engine Name Print lets you print this screen Windows Printer Setup lets you change printer selection paper orientation etc Help brings up a series of help screens on the Engine Specs menu 4
274. r test is done you click on Close back to return to the New Test screen There you make the necessary changes if any to identify the Test Name Folder comments etc As mentioned in Example 4 1 most anything you miss changing or commenting on can be changed at most any time in the future This makes it very easy to correct mistakes should you find any At the New Test screen after you make any changes click on Download Data and follow the screens as shown in Figure 4 46 176 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 46 Downloading Data Click on Download Data to get the data stored in After Test the DataMite II into your computer You will get some messages as the data is being downloaded The memory segment for a the last data recorded is w Starting a New Test Download Data Ctl N Cancel don t start new test lt Esc gt Current Readings Help shown here You can also f Operator Pick Eng Assign Folder Add Type of Test select to download any of T ada het a ee e the other segments which Test 383 chev1 CFG henry Test examplesD yno x Meas Tq HP from x have been recorded Pick Which Specs to Keep based on current file 383 chevy CFG See Specs Type 31 Channel DataMite II Dyno See Specs Inertia Dyno 69 9 Ib x ft 2 z meaane Read Com Port Engine See Specs Keep this box checked if you want to copy the curent test s Engine Specs to the New Test Test Conds See S
275. r very short e They should keep the sensor reasonable square with the face of the magnet e They should keep the sensor away from heat either exhaust or brake heat e To avoid vibration problems see Figure A3 3 in Appendix 3 Troubleshooting 4 Select DataMite Mounting Locations A good place to mount the Black Box II or DataMite II module would on a metal plate away from the engine Do not mount on the dyno or engine stand itself to avoid vibration If you must mount on the dyno or engine stand be sure to mount it in very soft foam Keep the boxes away from exhaust heat and electrical noise like the engine s ignition system It is generally good to mount it on metal as the metal can absorb some of the electrical noise emitted by the engine s ignition system The Black Box II is designed to set on a table top If the table top is vibrating place a piece of soft foam beneath it Do not bolt it down as this will make the vibration worse For the Black Box II with the internal weather station mount the Black Box II somewhat close to the engine s air inlet or at least so the air going into the engine is also the air flowing by the Black Box II If you must mount the Black Box II on a vertical wall then hold the module in place and mark the 2 bolt holes Drill holes as required When bolting the module in place DO NOT over tighten and place a piece of foam between the wall and the Black Box II Place rubber washers between the bolt heads and
276. raphs 223 logo 224 Magnets 56 189 191 201 Main Screen 6 3 6 7 8 11 12 15 16 17 18 19 20 23 24 26 48 54 60 70 89 90 93 99 101 108 111 128 129 132 133 144 149 150 154 155 156 157 159 162 168 178 207 209 223 224 225 Main Screen Filtering Level 23 Main Screen Graph Lines 23 Main Screen RPM Increment 23 Manifold 47 173 Master DataMite Specs 51 52 53 144 Master Dyno Specs 65 149 178 Max Inertia Wheel RPM 71 Max RPM 39 178 Method of Recording Weather Data 31 84 85 Metric 81 225 Min RPM 39 Mini Black Box 227 Mini USB 20 76 143 172 200 224 226 227 Mufflers 48 Multiple Tests 104 111 168 Multiplier 56 New get data from DataMite 17 New Test 6 16 17 20 25 89 90 94 95 144 149 150 151 152 154 175 225 226 Noise 25 56 94 95 96 143 154 155 156 159 162 177 191 192 202 203 204 223 Obs Barometer Hg 32 Observed flywheel HP 103 Observed flywheel torque 103 Oil Temperature 34 Open 5 8 11 12 18 24 37 43 48 60 70 89 105 106 120 127 128 130 131 132 133 144 161 200 209 213 223 224 Open from all saved tests 11 18 43 128 133 144 161 223 Open from History Log 18 128 Open Master DataMite Specs 60 Open Master Dyno Specs 70 Open Edit Save These Settings 105 106 224 Operator 16 90 132 154 Optical Isolator 26 226 Other RPM 55 56 Outlook 22
277. rect Analog Sensor Specs Type Custom user supplies table x Data N ay Sa ame A FICO If this calibration is for Analog Sensor Specs a DataMite Il then the 2 mu signal can be based on 1st Value Engineering Units different scalings of the Ist Value volts Read Co particular channel 2nd Yalue Engineering Units 2nd Value volts Read Signal Based On f These buttons let you M Note k organize the data and read the DataMite s Pick the location of the sensor and of magnets R R p or targets if a different type of sensor is being __ Resort Rows _ signals just as the used on the rotating component Clear Row Heinla Read button was Delete Row Clear All Rows described above Keep Specs Help Cancel Print Signal Based On If this calibration is for a DataMite II then the signal can be based on different scalings of the particular channel either e 0 4095 bits of resolution works for either type of scaling of a channel 0 5 or 0 10 volts e 0 1023 bits of resolution for the new DataMite USB loggers e 0 5 volts 5 volts full scale on this particular channel which is determined by a jumper inside the DataMite II e 0 10 volts 10 volts full scale on this particular channel which is determined by a jumper inside the DataMite II For the analog converters for RPM channels 0 4095 bits is replaced by 0 1000 Hz frequency Your choice h
278. rement and choose Torque Arm as the method of measuring torque w Dyno Specs ile Torque b easurement Current Readings Help Channel is currently Channel 6 See Appendix 5 in manual to calibrate the torque channel Torque Arm Dyno Specs The torque calibration is contained in the DataMite specs menu Other Specs Help ick a type of dyno p Program recognizes that you ve set Channel 6 Analog Channel 1 to Dyno Tq as it should Dyno Type is set to Engine direct drive because the engine is directly coupled to the dyno Dyno RPM Enaine RPM Click on File then Save as Master Dyno Specs to save these settings Figure 4 44 Current Readings During Dyno Test w Current Readings Close back Options Trace Recorder Help All thermocouples identified as Exh thermocouples are shown here changes are possible by clicking on Options Checking Com Port 1 Attempt 1 Caroni es ea fs RPMs amp Accelerometers Std Analog Channels 1 Eng RPM 8 6840 Cylinder 4 Stroke m RPM 1 Magnet 175 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Running Dyno Test Click on Start Dyno Run at upper left corner of main screen to be brought to the Current Reading screen shown in Figure 4 44 For the DataMite II you must press the Yellow button on the control panel to start recording and press the Red button to stop recording Note that you do this 5 10 second
279. repeatable weather data because it is recorded the same way each time you make a dyno run For the DataMite II the weather data is recorded after the test when you are downloading the torque and HP data from the DataMite II If you make a dyno run you must download the data right away for this method to be accurate For example if you make a run now and download the data 6 hours from now you will be getting weather data that was recorded 6 hours after the test which is not accurate The Black Box I DataMite II USB and DataMite Mini USB have an internal weather station and its weather data is always recorded during the run Check Appendix 7 for more Weather Station info including how to use a separate Eng Intake Air thermocouple for improved accuracy Some dyno testers want to use their own weather stations a collection of temperature humidity and barometric pressure measuring devices When using these instruments here are some things to keep in mind e Unless you are very close to sea level an actual observed or uncorrected barometer will usually read less than a TV or radio weather report barometer For elevations less than 5000 feet an uncorrected barometer should read approximately 0 1 Mercury less for each 100 feet of elevation above sea level For example if your barometer instrument is at 850 feet elevation and the closest weather station reports 30 46 barometric pressure your barometer should read approximately 85 85
280. ring ex 3i weather s 4 Find the Dyno DataMite v3 7 Installer exe file and Open it E RoadRaceDataMite 32 exe SSpring exe E Susp nzr exe Ed Thermocouple_Recorder exe El Trgr w95 exe gt File name DyDM w95 exe q Files of type Programs Cancel L Open F SETUP EXE JI Cancel Browse gt 2 Messenger InvoiceData 4 Vi 1 Click on Start then Run M _MainData tx ia DTMMANL v 2 Click on Browse sual Basic v C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction Entering Registered Owner s Name The first time you run the Dyno DataMite Analyzer you will be asked to enter your name as the Registered Owner During this first session you can modify it until you are satisfied Once you accept the name the computer will generate a Registered Code based on the name To be eligible for Tech Help you will need both your registered name and code and to have sent in your registration card The name you enter should be very similar to the name you enter on the registration card Click on Help then About Dyno DataMite Analyzer at the Main Screen to review your name and code Unlocking Program Options Figure 1 2 Menu to Unlock Program Options FJ Unlock Form The Dyno DataMite Analyzer is equipped with copy protection This ensures that legitimate users do not Code to Extend Demo 239235212 have to cover the co
281. rks by each like item to note that we checked it off before we shipped it to you The standard 4 channel DataMite data logger system should be shipped with 1 Re N Re DataMite module Important The standard DataMite module is NOT designed for Magneto ignition like injected alcohol sprint car or blown alcohol V 8s systems or uneven firing engines for example Harley Davidson V twins Call Performance Trends for exchange with proper module possibly at extra charge before hooking up Small engine magnetos like on a Briggs amp Stratton engine are OK Inductive Pickup Module optional This is not needed for absorber dynos but is for most any dyno recording engine RPM DataMite Mini Control panel with LEDs pushbutton control panel with LEDs is optional Wiring harness with standard wheel RPM sensor Magnets for wheel RPM sensors you typically will only use 1 to avoid uneven spacing issues Serial cable for connecting DataMite to your computer s COM port 110 VAC or 220 VAC for overseas power supply The larger 30 channel DataMite II data logger system should be shipped with 1 N e DataMite II module Important The DataMite II module is NOT designed for Magneto ignition systems like injected alcohol sprint car or blown alcohol V 8s or uneven firing engines for example Harley Davidson V twins Call Performance Trends for exchange with proper module possibly at extra charge before hooking up Small
282. rmometer on the psychrometer in degrees F The wet bulb has a wick or cloth covering the bulb which is moistened with water The dryer the air the greater the difference between the wet and dry bulb readings Relative humidity or dew point can be manually read off a Psychometric chart from these two readings This calculation replaces reading the chart The Wet Bulb Temp must be less than the Dry Bulb Temp 84 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 85 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 86 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 87 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions 2 9 New Test Check Appendix 7 page 223 New Features in Version 3 7 for new features The typical way you get to the New Test screen Fig 2 40 is by clicking on the Start Dyno Run button at the upper left corner of the main screen You will first see the Current Readings screen After you have recorded your data or if you close the Current Readings screen you will be presented the New Test screen See Start Dyno Run in Section 2 1 6 The New Test command is also available by clicking on File at the top left of the Main Screen then selecting New Then you can click on Current Readings at the top of the New Test screen This is a 2 step way of what the Start Dyno Run button does Wh
283. rows of the report Your choice will appear in the left column of the report For Chassis Dynos you choices will also include vehicle speed in either MPH or KPH kilometers per hour What to Report Select what part of the dyno test you want to make the report of All Data Just Power Run 2 if it exists Just Power Run 1 Just Power Run 3 if it exists etc Click on the down arrow button to choose either to report All the Data all data recorded or just a particular run If you have selected an RPM graph you can only choose a particular run like Just Power Run 1 not All the Data Filtering smoothing Click on the down arrow button to select the level of filtering smoothing to be done to the data before the report is made None Medium Light some Heavy lots Select the lowest level that eliminates most not all of the jitter in the data Be careful not to over filter as this can completely distort the data See page 110 and 111 in the Graphs Section for an illustration of Filtering 101 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples For reports filtering is not as critical as for graphs Lets say you specify reporting data at 250 RPM increments If your report includes 4500 RPM then all data within that 250 RPM increment from 4375 4625 RPM is averaged together to make the number you see reported at 4500 This averaging process is much the same as filtering Range
284. rrent Readings in Pro Version We ve added new Calculated outputs for the Current Readings screens to be displayed on the gauges e Gallons per Minute GPM is an option for fuel flow e Clutch Slippage which displays the difference between engine and dyno RPM also correcting for gear ratio e Power in either HP or Kw This is only available for absorber dynos Click on Options at the top of the Current Readings screen and these appear at to bottom of the choices for the Dial and Bar Gauges screens This is available in the Pro version only Program now will display torque and HP curves closer to the very last RPM point tested Previously if you ran the engine to 7000 RPM but asked the program to display data in 500 RPM increments data would not be shown for 7000 RPM unless you ran the engine all the way to 7250 RPM half the RPM increment BEYOND the last RPM increment to display Now all thermocouple readings on the Current Readings are shown to the nearest degree Previously it could show 01 degrees for temps under 100 deg and this made the readings appear very jumpy We ve added the ability to do an Engine RPM accel report from just dyno RPM if you have specified Dyno Type as Engine No Clutch or Engine Direct Drive and set the Preference of Engine RPM is Calculated RPM to Yes This is available in the Pro version only Program now allow multipliers up to 10 000 in the Graph screen which is better for radio controlled engines
285. rt it is for this test file If you click on one of the Menu Commands at the top of the Main Screen you can be presented with a screen of specs Figure 2 3 shows the screen for the Pro version s Engine Specs Figure 2 3 discusses some of the commands to enter or change settings at this menu Before Running Your First Dyno Test It is recommend you becoming very familiar with the Dyno DataMite Analyzer before starting real tests Points to consider include e Be sure your Black Box II or DataMite II is installed correctly is recording data properly See Appendix 2 e Review the proper procedure for performing a test as outlined in Example 4 1 e Become familiar with how to validate your data to ensure the raw data that was recorded is correct as shown in Example 4 1 and Appendix 3 Troubleshooting Important The raw DataMite data must be correct and free from defects for the calculated torque and HP to be correct Become familiar with the way to check the raw DataMite data shown in Example 4 1 11 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 3 Explanation of Sections of Typical Menu Engine Specs menu shown which is only available in the Pro version Names of component specs Click on them for a description in the Help frame in the lower left corner f Engine Specs YAMAHA t Customer amp Comments Customer Name of component file displayed in this menu Standard t
286. rt Block Specs Type Click on the down arrow button to select either 2 Stroke or 4 stroke engine types Bore Cylinder bore measured in inches Cylinders Chapter 2 Definitions C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Number of cylinders in the engine ex for a V 8 this would be 8 Stroke Piston stroke measured in inches This specs is also used only for correcting engine power for engine inertia effects See Correction Factor in Test Options Rod Length Center to center connecting rod length measured in inches C R Compression Ratio Click on the Clc button to calculate Compression Ratio from other inputs Block Type in most any comment to describe the block bearings deck height etc No entry is required Piston amp Rods Type in most any comment to describe the Pistons wrist pins rings and Connecting Rods No entry is required Crank Wt amp Descr Enter the weight of the crankshaft in lbs This spec is used only for correcting engine power for engine inertia effects See Correction Factor in Test Options Crank Description Type in most any comment to describe the crankshaft No entry is required Flywheel Wt amp Dia Enter the weight of the flywheel in Ibs This specs is used only for correcting engine power for engine inertia effects See Correction Factor in Test Options Flywheel Diameter Enter the outside diameter of the flywheel in inches Th
287. ry Gears Use Calc Value Help Cancel Print Compression Ratio Clearance Volume Swept Volume Clearance Volume Piston Dome CCs Gasket Thickness and Deck Height Clearance The program will calculate compression ratio based on the equation below where Clearance Volume is the Chamber CCs in Head Piston Dome CCs Is the volume of the pop up in the piston measured in cubic centimeters The pop up is the volume of piston material added to the top of a flat top piston If the piston has a dish depression enter the dish volume as a negative number Gasket Thickness in Is the thickness of the engine gasket in inches after it has been crushed Crushed thickness is after the head bolts have been torqued to spec Gasket Bore Diameter in Is the diameter of the bore in the head gasket A good approximation is to use the same as the Bore in the Engine menu and this value is loaded in when you first open up this menu You can change it to most any value you want In actual use gasket bores are usually 030 100 larger than the cylinder bore Deck Height Clearance in Deck Height Clearance is the distance in inches from the top of the piston to the top of the cylinder block when the piston is at TDC The top of the cylinder is the deck or surface to which the head bolts If the outer edge of the piston travels above the deck this is called negative deck height and you must enter a negative number 81
288. ry to investigate the source of the problem 177 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Checking Data Quality To check the quality of the data graph the raw RPM torque and Recording switch data as shown in Figure 4 47 All data looks very clean with no noise spikes However there is a dip in the torque and RPM after the recording switch was pressed This dip in torque and RPM may be because the throttle was not completely WOT Figure 4 47 Graph of Torque RPM and Switch vs Time for All Data ZN Recording is DataMite Analyzer v3 2 383 chevy CFG switch ma rking Back File Format View GraphType AddTest HistoryLog Multiple Tests Help Start and End of ey eee Leo belo Tt retin sca WOT test data Engine RPM Torque Channel 26 Swtctt vs 1000 0 i i A 383 chevy all d 1 Engine RPM x 1 i i i i i i i 1 Torque i i i i i i 1 1 1 1 t t Channel 26 Swtch x 1009 ERA eee ae eeas oom Re Gee Sa et eee a ee et eee a ee eee erat 1 1 1 1 1 i 1 Time sec amp DataMie Analyeer v32 383 chevy CFG Back Fio Foma View This dip in torque and RPM may be causing some inaccuracies in the data 178 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples To check if the data at the dip is making the test inaccurate we could edit out that portion of the test and just save the portion after the dip up to the point w
289. s Type 31 Channel DataMite II Com 1 Sampling Rate samples sec 50 Channel Settings Channel Data Name Analog 11 blue Exh 5 Analog 12 green Exh 7 Analog 13 red Water Tmp Analog 14 yellow Oil Tmp Analog 15 blue Eng Intake Air Analog 16 green Exh 5 Analog 17 Channel 22 Analog 18 Channel 23 Analog 19 Channel 24 Analog 20 Power Volts Switch 1 red Channel 26 Switch 2 yellow Channel 27 Switch 3 blue Channel 28 in Test Conditions Options Back Help Type of Test Absorber Dyno Test Spec Type Start Low RPM release to high RPP w Switch Specs Settings Switch Sensor Specs Souce Tit 1 Name Channel 26 Note Click here to open Switch Choose the source forthe switch input Specs screen to change WOT switch to Other Switch as shown here Then click on Keep Calib Keep Calil Help Cancel Print Box Power VAlts OWOT Switch Digital Input 2 Digital Input 3 Without the WOT Switch input these 3 settings at the bottom of the Test Conditions Options screen are used to let the program know what part of the recorded data is actually the part to be used the part where the throttle was fully open full power Max RPM Min RPM 179 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 48 Comparison of Using Recording Switch vs Program s Test Conditions Resultant power curve from using the Recording Switch The Test usin
290. s Help Clutch converter slip lale oD ee DD of T tT rarview set sca pte a i us Corr Tq Corr HP vs RP serye whee Pie a or Corrected flywheel torque cor HP Corrected flywheel HP Other Graph Specs Time or RPM Graph What to Graph Data Selected to Graph 4 types max Corrected flywheel torque Corrected flywheel HP 2 000 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 5600 6000 6400 RPM a Make Graph Help Cancel Print If you did not enter good weather conditions yet for this test then it is usually better to graph and analyze Observed Torque and HP You will also notice that we set filtering to Light some This is usually a good compromise between getting rid of some of the jumpiness of torque and HP data and over filtering which can distort the data For more details on other graph options check Example 4 2 Analyzing Dyno Data If you had just run this test for a particular customer then you may like to give that customer a printout of the results Click on Back to return to the Main Screen from the Graph Screen as shown in Figure 4 19 Then click on File then Print as shown in ae ener the Peep oucmiaty Pemiott Fig ure 4 21 ann a Test Summary are A Dyno DataMite v3 2 Performance Trends Stock File Edit Graph Report TestConds Engine DataMite New get data from DataMite Ctrl N Click on File Open from all saved tests Ctr O then Print for the Open from His
291. s Print Setup Save a Test File Before you consider saving a test file it is important for you to understand how the program opens and uses test files When you open a test from the Test Library you are only using a copy of the test The original test file is kept in the library As you make changes to the test they are only made to this copy The original file is not changed If you want to delete your changes you can simply open a fresh unchanged copy of the original test file from the Library If you want to keep your changes you must save them This can be done by clicking on File then Save You are also asked if you want to save your changes whenever you open a new test and the program has detected you have made changes to the current file 128 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 3 30 Saving Test File Options New name to save test data to Leave unchanged and click OK to save to the current test name This would be the ame as clicking on File then Save Click on name in the box to change it then click OK to save it to the new name Note The test name must have a CFG extension That means it must end with CFG This will be added to the name by the program if you do not add it yourself Name of current test file you are working with ifferent folder to save this test to Note e Edi Giph Report JEA Cond Enaine Daite Dyno fielere Athat the top choice in this list is
292. s before you actually start the WOT acceleration and 5 10 seconds after you close the throttle You run your absorber dyno tests as starting from a low RPM and then releasing the dyno load so the engine accelerates to its final RPM Because you are using an external WOT Switch on Channel 26 the first switch channel it is not critical how you set up the Absorber Dyno Test Specs in the Test Conditions screen Figure 4 45 shows the basic procedure Figure 4 45 Test Procedure for Absorber Dyno Start Low Release to High 1 Power up 3 Stabalize engine at 6 Slowly release 7 Release WOT hand DataMite Il Click Starting RPM at WOT dyno load so engine switch and close throttle at on Start Dyno Press Yellow button to accelerates slowly we end of test at highest RPM Run at top left of start recording data you want to test at main screen of 8 Press Red button to dyno tesi on we stop recording Then Engine click on Close back at Current Readings ai upper left corner of oy __ Dyno run Current Readings goes from screen Then click on here to here Download Data at at lt lt Test screen 4 Open throttle wide 5 Once you reach WOT Engine drops quickly Open OWO T and apply press WOT hand switch to idle or even stalls load to keep RPM at starting RPM to mark WOT in data set Note Running a test without the WOT hand switch is the same as these steps except omitting the pressing and releasing of the hand switch When you
293. s give ou a way to reach the Menu in Figure 3 26 to change the Titles and Legends of the graph Include on Graph IV Test Summaries IV Test Comments IV Graph Comment Graph Comment 1 comment on graph Comparison between 9 25 exh flex and 9 50 exhaust flex Titles to Use Std Titles Alt Titles See Titles Help Check or uncheck these 3 options to determine what gets printed and what options are enabled land disabled on this screen Bottom Section of Printed Graph 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000 16000 Graph Comment Comparison between 10 and 9 75 Test Summary and Comments for yam 1000 1 Test Operator Tom 5 19 pm 01 02 2000 PkTq 8 45 9200 047 Bore es Eng Yam100 0003 Corr To 29 92 60 dry PKHP 15 73 10200 1 815 Stroke Summary Customer Peterson Corr Factor 1 012 5 97 cid 2 Cycle 1 Cylinders G2 10 flex INERTIA DYNO Yamaha Pipe test 12 7 98 Lo 1 1 8 Hi 3 8 Test Comment Test Summary and Comments for yam 975 1 Operator Tom 5 19 pm 01 02 2000 Eng Yam100 0003 Corr To 29 92 60 dry Customer Peterson Corr Factor 1 012 PkTq 8 51 9600 2 047 Bore PkHP 15 94 10000 815 Stroke 5 97 cid 2 Cycle 1 Cylinders G2 9 75 flex INERTIA DYNO Yamaha Pipe test 12 7 98 Lo 1 1 8 Hi 3 8 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Cursor The cursor feature is very useful for determ
294. s to somewhat customize the program for your needs e Click on File then Unlock Program Options to obtain codes to give to Performance Trends to permanently unlock the program take out of the 10 day demo mode See Section 1 4 e Get HELP to explain these options by clicking on Help e Quit the program by clicking on File then Exit All these options are explained in detail in Chapters 2 and 3 In the Main Screen s blue title bar you will notice the name of the current test is contained in square brackets The program has several examples of tests saved in the Test Library s Example folder right from the factory To get started let s try a couple of Menu commands Click on the Graph menu command to open up the graph options menu shown in Figure 1 4 The graph settings shown in Figure 1 4 are for Corrected Torque and HP vs RPM Click on the Make Graph button to produce the graph shown in Figure 1 5 At the graph screen you have several other options available for changing the graph These options are available by clicking on the commands in the menu bar or on the buttons at the top of the screen including the Help command The Help command at this screen and most Figure 1 5 Graph from Options Selected in Figure 1 4 screens provide a good background on what the various w DataMite Analyzer v2 0 YAM 900 CFG options are For now Just click on Backes File Format View GraphType AddTest HistoryLog Multiple Tests Help B
295. se must be filled out lick Here to Save this New Test before you can start the new test The program usually fills Starting a New Test them in with default values S Ctl N Cancel don t start new test lt Esc gt Current Readings Weather Help P Operator p Eng A Folder Type of Test based on the current test File Name a for New Pick i ll Assign Name for Add yp 1 File Name for New Test is Test__ sss the file name the program Stock Briggs 01 cfg Stock Briggs 0001 BRIGGS Meas Ta HP from will create for saving the Pick Which Specs to Keep based on current file Setting Up CFG Test Data for the new test DataMite See Specs Type Black Box II you are starting The program fills in a default Dyno See Specs Inertia Dyno 69 9 Ib x ft 2 name of the current test i ae ame butincrem ti ting the Engine See Specs a this box checked if you want to copy the current test s Engine Specs to the New gt est last digit in the name by 1 3 v Test Conds Keep this box checked if you want to copy the current test s Test Conditions to the New You can change this name Hode Test to most anything you like Test Comments Keep this box checked to use comments below for the New Test Note that you can The program will warn you erase and change these comments here if the name entered is not Stock Briggs Baseline valid and show you what is wrong For this example type in the name Stock Briggs
296. sor line are ee e aia ese Welle A Pele xi Essay shown here in the Engine RPM Dyno RPM vs Time yam 1000 all Engine RPM 7004 Dyno RPM 1047 am 975 all y Engine RPM 6999 Dyno RPM 1041 te ete se oe oe ee ee oe Cursor Time 22 0 Time sec 10 46 Figure 4 31 Checking Other Values with the Cursor w DataMite Analyzer v2 0 YAM 1000 CFG Format View GraphType AddTest HistoryLog Single Test Help Engine RPM ith 10 flex is yam 1000 all Engine RPM 15458 Dyno RPM 2314 am 975 all Yy Engine RPM 15554 Dyno RPM 2331 4 7 ey oe ekecae rF No o o 22 0 Time sec 19 133 165 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples E Figures 4 29 through 4 33 show how you can use graph features like Time Aligning Zooming and the Cursor to check various performance characteristics However the most common way to check performance between two engine conditions is the graph the Corrected Torque and HP vs RPM Figure 4 32 shows the Graph Menu specs to produce the graph shown in Figure 4 33 Figure 4 32 Graph Specs Menu Figure 4 33 Corrected Torque and HP Comparison Graph he 9 75 flex shows higher HP and torque throughout Engine Accel RPM sec most of the RPM range which agrees with the Dano rE acceleration results that the 9 75 flex was at a higher Clutch converter slip RPM at the end of the acceleration Observed flywheel torque Observed flywheel HP w
297. specs set to match your inertia dyno click on File then Save as Master Dyno Specs to save these changes Then click on Back to close the Dyno Specs menu Save These Changes After you have finished entering the Master DataMite and Master Dyno specs return to the main screen Now when you start a New Test and record data with the Black Box II these Master Dyno specs will be the ones used for determining the torque levels of the engine for various dyno wheel acceleration levels Back at the Main Screen you could click on File then Save to also save these changes to the test file called Setting Up you created Actually you do not have to do this because the DataMite software resaves the file you are working on each time you return back to the Main Screen Notes to users of the Basic Dyno DataMite Analyzer You will notice that the additional inertia of the components the Pro version lets you include are only about 0 2 for this dyno system This is usually the case that the main large diameter wheel is where almost all the inertia is concentrated Therefore there is usually little error with the Basic version when you can t include these components The same is somewhat true with the coastdown data for correcting for frictional losses However it this case at 1290 RPM the Pro version would report a number 22 HP higher since the coastdown test is saying there is a 22 HP loss in the system the inertia wheel does not see at 1290 RPM
298. st History Log Sing each test Al 5 Zoom m4 Click here to return the graph to its unshifted T Full View r original condition Note that the program remembers Specify Scales axes the amount of shifting for the displayed tests until you close the graph screen open the History Log or pick different file s to graph v Show Adjusted Timing Show Original Timing Reset Timing to Original Timing Click here to zero out the amount of shifting you Timing Shift Size 001 Seconds have done 01 Seconds Click on Timing Shift Size then select the amount of v 1 Seconds time you want the selected test to shift for each click 1 0 Seconds on the Shift Button Note You can also hold the Shift key down while clicking the shift button to shift a much larger amount Turn Cursor On C Performance Trends Inc 2005 Dyno DataMite Analyzer Other Format Commands Chapter 4 Examples Figure 3 24a shows other useful Format commands to change the appearance of the graph The powerful Save Open Edit Current Format command lets you save formats you have developed Figure 3 24a Format Commands DataMite Analyzer v3 2 yam 950 CFG _ Back File Format View GraphType AddTest History Log Save Open Edit Current Format z B Bo gt lolx t Ful View E Ful view View setscaef O Data To Graph graph type Which Tests to Graph bie yam 950 1 Data Multipliers e Style Thin Lines Edit Titles Legend
299. started the stopwatch at 1290 RPM 9 Type in the results from the coastdown into the Dyno Specs screen shown in Figure A6 1 Note that the HP losses calculated are typically less than 5 of the power levels the particular dyno is intended to absorb Figure A6 2 Current Readings Screen to Read Dyno RPM te Current Readings x Close back Options Help Recorded Data Procedure The Recorded Data procedure is the same as the Manual procedure shown above except you record the data with the DataMite 1 Start the DataMite recording data by powering up the DataMite then pressing the Clear Memory button erasing any current data in the DataMite Then press the Record button to pause the DataMite from recording The Record LED should go off to indicate the DataMite is NOT recording 2 Warm up your dyno system spinning the wheel to the approximate bearing temperatures you think you will see during your dyno testing 3 Accelerate the inertia wheel to the highest safe RPM you will encounter during your dyno testing 4 Start recording data as if running a normal dyno pull Keep recording until the dyno RPM has fallen to less than 1 3 the starting RPM highest RPM recorded 5 Download this data as you would any dyno test You may want to call this Data Type a Custom but this is not critical 6 Graph the Dyno RPM for this coastdown test vs time as shown in Figure A6 3 Use the cursor to find 3 points on this curve See Section 3 3 on using t
300. sts for unauthorized distribution Computer Hardware 842897 of the program When you first receive the program it is in demo mode In demo mode you can try either Registered Name Joe Smith Cancel the Basic version or the full Professional version for Registered Code 14666 x ten days All features are working in demo mode Enter Unlocking Code Loo e Help Click on Help for more info on how you use this screen to unlock this program Sometime during those 10 days you should call Performance Trends to obtain an Unlocking Code This Unlocking Code will be for either the Basic version or the Pro Version whichever you have purchased Before you call Performance Trends you should get your disk serial number registered name and code number and computer hardware number These are available by clicking on file in the upper left hand corner of the Main Screen then clicking on Unlocking Program Options A screen will appear as shown in Figure 1 2 Performance Trends will provide you with an unlocking code number Type in the unlocking code number and click on OK If you typed in a number correctly you will be given a message that the program is permanently unlocked to either the Basic or Pro mode The program will only run on this one computer If you want to run the program on another computer you must install it obtain the computer hardware number and registered code number as shown in Figure 1 2 and call Performance Trends
301. t If the elevation is below sea level very unlikely enter a negative feet for this reading Altimeter The altitude in feet above sea level from an altimeter instrument The program assumes the altimeter is corrected to 29 92 This means on a standard 29 92 barometric pressure 60 deg day the altimeter would read 0 feet at sea level If the altimeter is reading feet below sea level enter a negative feet for this reading Density Altitude Density Altitude Density Altitude in feet above sea level of the current dyno weather conditions Many racers like this number for comparisons It basically means for a standard 29 92 barometer 60 deg 0 humidity day what altitude would give the same barometric pressure as the current dyno conditions Dry Density Altitude Dry Density Altitude in feet above sea level of the current dyno weather conditions sometimes called Corrected Density Altitude corrected for humidity It basically means for a standard 29 92 barometer 60 deg 0 humidity day what altitude would give the same oxygen content as the current dyno conditions This is a better measure than Density Altitude of the air s power producing potential Notes on Weather Readings and Weather Stations 32 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Oo a ES ee Performance Trends can provide an electronic weather station for obtaining weather data for correction factors This will produce very
302. t accuracy and not repeatability e Additional corrections can be made in the Pro version for losses in accelerating the engine s inertia The engine s inertia is also estimated by inputs in the Short Block section of the Engine Specs menu These are also an estimate An error here will only affect accuracy and not repeatability e For an absorber dyno it is important for the load measurement and torque arm length be measured accurately See Appendix 5 for the calibration process An error here will only affect accuracy and not repeatability e For absorber dynos it is also important that the bearings which support the absorber have very little friction See Appendix 5 An error here will affect accuracy and repeatability e Corrections can be made for changes in weather conditions to produce Corrected Torque and HP readings It is critical that you accurately enter the weather conditions for each test in the Test Conds menu See Section 2 3 An error here will affect accuracy and repeatability General Testing Tips e Real dyno tests DO NOT repeat exactly from run to run Minor changes in temps procedure measurement system produce minor changes which can add up to 1 2 difference from test to test The more time and the more engine teardowns between dyno pulls the more likely you will have differences e Always anticipate what your modification should do before you do your test An engine simulation program like Performance Trends Eng
303. t coast down The only forces acting on it are aerodynamic drag bearing friction and any friction on whatever else is turning usually the chain drive also You can take this information and load it into the Dyno Specs shown in Figure A6 1 It is critical that the engine is not attached to the dyno during the coastdown test If your dyno system has a one way clutch this is fairly easy to do Check Appendix 7 page 223 New Features in Version 3 7 for a new special Test Type called Coastdown which will automate this entire process Figure A6 1 Dyno Specs Menu for Loading Coastdown Results Inertia Dyno Specs Back File Torque Measurement Est Required Inertia Current Readings Help Inertia Dyno Specs Sections in Main Wheel x tt of R Inside Dia Outside Dia Width len TEN Ibs TE Main Wheel Main Wheel section 2 Main Wheel section 3 Main Shaft IV Include Brake IV Include Clutch IV Include Misc Component amp I Include Misc Component B T Include Misc Component C T Include Misc Component D l Other Specs wheel RPM 1290 11010 755 diferent e in Time sec f0 a Le main wheel p xx more details HPLoss 23 Gear Ratio ae Note If you have not done an accurate coastdown test on your dyno it is best to enter 0 for all 6 coastdown specs to cancel out this correction Manual Procedure Get a stop watch and set it to zero 2 Warm up your dyno system spinning
304. t is to build a simple inertia dyno that works Tom has also had considerable input on this program both with suggestions and troubleshooting His efforts are greatly appreciated Table of Contents Chapter 1 Introduction 1 1 1 Overview of Features 1 1 2 Before You Start 2 1 3 A Word of Caution 3 1 4 Getting Started Installation 4 1 5 Example to Get You Going 7 Chapter 2 Definitions 11 2 0 Basic Program Operation 11 2 1 Main Screen 15 2 2 Preferences 23 2 3 Test Conds 31 2 4 Engine Specs Pro version only 43 2 5 DataMite Specs 51 2 6 Dyno Specs 65 2 7 Current Readings 15 2 8 Calculation Menus 81 2 9 New Test Screen 89 2 10 Edit Test File Options 93 Chapter 3 Output 99 3 1 Reports 101 3 2 ASCII Data Files Pro version only 107 3 3 Graphs 109 3 4 Printer Output 123 3 5 Data Libraries 127 3 6 Filter Test Files Pro version only 131 3 7 History Log Pro version only 133 Table of Contents cont Chapter 4 Examples Example 4 1 Installing the DataMite on an Inertia Dyno and Running a Test Example 4 2 Analyzing Dyno Data Example 4 3 Running an Absorber Dyno Appendix 1 Appendix 2 Appendix 3 Appendix 4 Appendix 5 Appendix 6 Appendix 7 Index with DataMite II Accuracy and Assumptions Hardware Installation and Operation Troubleshooting Data Recording Backing Up Data Calibrating an Analog Sensor Coastdown Test New Features in v3 7 141 143 161 173 185 189 199 207 211
305. t to zoom in on 4 p 4a r 4 Time sec 163 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 28 Graph After Zooming In with the Mouse as Done in Figure 4 27 Click on Full View to w DataMite Analyzer v2 0 YAM 1000 CFG x return to the original Back Fie Format View GraphType AddTest History Log Single Test Help lal E la elele Lele dee belo sy t rurvicw se goses Engine RPM Dyno RPM vs Time yam 1000 all 18000 Engine RPM N Dyno RPM am 975 all y Engine RPM Dyno RPM 16000 14000 EA A TAA 12000 10000 8000 ee AE ee 6000 4000 mouse now fills the entire graph screen S Full View Specify Scales axes v Show Adjusted Timing Show Original Timing yam 975 all Reset Timing to Original Timing Engine RPM 00 S Timing Shift Size 001 Seconds Dyno RPM 00 the 9 75 test One wv Seconds button is hidden by Turm Cursor On deea the View drop 1 0 Seconds gt down menu good alignment with Click on View then Timing Shift Size to 4 4 t A Io oe ee ee ee a ea Time Align buttons ee otek eet 4d Se CETT 22 0 Time sec C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 30 Using Cursor to Check Values on Graphs w DataMite Analyzer v2 0 YAM 1000 CFG x Back File Format View GraphType AddTest History Log Single Test Help alues at the cur
306. t used to calculate torque or HP the noise spike is not as critical say in an Exhaust Temperature However you must realize that the immediate jump up or down is not real 94 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 46 shows how even a relatively minor noise spike in the Dyno RPM for an Inertia Dyno test can completely distort the torque and HP curve Any Inertia Dyno runs with even small spikes in the Dyno RPM must be rerun 95 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Fig rig Q4 2 MdisexSpibiss os Noise Nitixy Quirivgis dtaikes Very Well Typical Sr hightsisb Spik thaNaiae S pikdata Ty Deda AthesyE dititj orbit tattoo weiktslata points pdints are significantly different than the data being quite diffeseNvibarSthises ranoaidintpdarapyitus pdints surrounding them In this caseattautatidetded antoHmhagiatiatartap shaft not being exactly evenly spaced Data J DataMite Analyzer v2 0 RAW CFG Back F Back File Format View GraphType AddTest HistoryLog Single Test Help k ia File Format View GraphType AddTest HistoryLog Single Test Help Tel el Te ay ee IT ee TT boiz aT vees l E E Eye Lfo Lelli pelos Tt ravenl se seed Engine RPM bales REM vs Timea oaii m neg RPM Cna RPM vs Time 0 all Engine RPM no 32000 x i Engine RPM 1 Ch2 RPM 1 1 1 1 Ch2 RPM i i i i i i 28000 24000 20000
307. table results if you are not careful to always enter the correct Engine Specs which describe the engine s inertia We strongly recommend you keep this Preference turned OFF unless you are extremely consistent about maintaining accurate Engine Specs and do reasonably consistent acceleration rates For good comparisons always try to maintain the same acceleration rate between tests Do not expect this correction to perfectly correct for doing tests with different acceleration rates This is available in the Pro version only The program now highlights in blue the Short Block specs used to estimate the Engine Inertia in the Engine Specs screen These are used if you choose to Correct for Engine Inertia Effects in the Test Conditions screen See paragraph above See Figure A7 6 This is available in the Pro version only 225 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS SSS SSS SSS Es We ve expanded a Preference to allow for 3 or 4 decimal places after decimal point for reporting torque and HP The Pro version now lets you pick Coastdown as a Test Type option Click on Test Conds at the top of the screen then choose Coastdown for the Type of Test This Type of Test can also be chosen in the Start New Test screen If this is the test choice it will pretty much automate the process we describe in Appendix 6 See Figure A7 8 The program now displays Corr Factor and Dry Density Altitude labeled Dry Dens Alt in the Cu
308. te g p rate you want a number Click on Options then Change Update Rate currently x to be presented espe al plore Cancel with the screen of Figure 2 31 Enter any number between 1 and 10 to you want in 1 second specify the number of screen updates per second On slower computers i you may want to specify a low number like 1 or 2 This can produce more Higher numbers produce faster updates and smoother dial actions Lower numbers can fix reading problems reliable readings on this screen If you want smoother dial operation and more accurate less lag readings then specify a higher update rate Gauge Settings Click on Options then Gauge Settings to be presented with the screen of Figure 2 32 Here you set what channels are displayed on the gauges and what the range of the gauge will be Channel Click on the down arrow button to select the channel to display on Gauge 1 or 2 75 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Range Figure 2 32 Current Readings Gauge Settings Click on the down arrow button to select the range for either gauge 1 or 2 Real Time Options x You can select from the pre programmed ranges provided or select the top 5 choice of User Specified Then the User Specified Max and Min specs Dial Gauge 1 become enabled so you can enter or change them Channel T EnAPM Range 0 6000 User Specified Max User Specified Wax If you set Range to Use
309. te II s microprocessor is constantly trying to make sure Engine RPM is clean and free from errors If engine RPM is changing VERY rapidly for example on engine start up from 0 RPM then it flares up to 3000 RPM the DataMite may not think this is possible and can jump into a half RPM mode or third RPM mode by mistake Usually the DataMite will recover from this by itself if you run normal RPMs for a while a few seconds With Inductive Pickup signals if the inductive pickup signal is too strong you wrap the spark plug wire too many times you may not be able to record Engine RPM at high RPM Engine RPM may drop in half or all the way to 0 RPM For the other RPM signals the problem may be e You may be specifying the wrong magnets See page 56 e A magnet may have fallen off e Wrong calibration for an Analog channel See Appendix 5 For analog channels Check that the calibration in the DataMite specs is correct Check that the power to the sensor is correct per Figure A3 1 Check that the source of the signal is correct For example be sure the tip of an exhaust thermocouple is not touching the pipe be sure the A F sensor is not close to the open end of the exhaust pipe be sure a pressure line to a sensor is not obstructed or has bubbles of air etc For minor drifts in these sensors you may want to turn on the Correction as discussed in Appendix 5 Recorded Data Good Calculated Data Bad Calculated d
310. te ll Options Current Readings Tro bleshoot Help Test Com Port Check Boot Message quick Check Boot Message extended Baig Cancel Check Com Ports Read Current File Header Disconnect cable from DataMite Install paper taMite clip in end of cable as shown Then click on ee eee the button for the Com Port you are using to Check DataMite li RPM Signals talk to the DataMite usually 1 or 2 A fl Engine RPM Yes Update DataMite II Firmware message will appear saying if the port is working tl t 2 Frequency 2 red Yes PAFA Cstm 200 800 Hz 10 17 P AFR i n ae Marnm Dai AAANII araanemarn 200 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices DataMite Not Reading Data Signals If the Engine RPM signal is not coming through e You are not hooked to the correct terminal or wire in the ignition system to record RPM e Fault in the Inductive Pickup or Inductive Pickup harness wiring e There are 2 types of Inductive Pickups one for single cylinder engines and one for multi cylinder engines Actually it has to do with how fast the ignition pulses are coming in The single cylinder IPU can work on 2 and up to 4 cylinder engines as long as the RPM is low enough If the RPM goes away at higher RPM approximately 5000 RPM for a V 8 then your single cylinder IPU is getting the RPM signals too fast e Fault in Black Box or DataMite module e Ifyou have the Preference Engine RPM is Calculated RPM t
311. te or your voltmeter 199 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices No Communication with the Computer e Remove the optical isolator if any and check again e Check the Com Port with the Paper Clip test shown in Figure A3 2 You must remove the optical isolator to run this test e For the DataMite II if both LEDs on the control panel are flashing then reload the configuration by clicking on DataMite at top of main screen then DataMite II Options at top of DataMite screen then Save to DataMite II Be sure the settings in the DataMite screen match your sensors before doing this If you are not sure then click on File then Open Master DataMite specs before Saving to DataMite II e Click on Troubleshoot at top of DataMite screen and do the Check Boot Message as shown in Figure A3 2 See if you get a response If yes then you know the box has power and is at least partially working You also know the box can send information and your computer can receive information This does not prove the box is working correctly at all times or that you computer can send information or the box can receive information correctly e Ifyou are using a USB adapter click on Start at lower left corner of screen then Settings then Control Panel all done outside the DataMite program then select System then You can right click on the My Computer icon on your desktop and select Properties then the Hardware tab in Windows
312. tePad and edit the Headnum pti file in the DTM20 folder but keep a backup in case you make a mistake Customer Click on the down arrow of Customer to be presented with a list of customers you have previously used You can pick one of these customers or type in a new one New ones are saved by the program and added to the list For Advanced Users To delete or change customer names in this list use WordPad or NotePad and edit the Customer pti file in the DTM20 folder but keep a backup in case you make a mistake Comments Type in comments to help describe these engine specs These comments are saved with the Test File with the Engine File if Dyno DataMite Analyzer Last Head Figure 2 11 Engine Menu Assign Head Number x New Head SBFord 0038 SBFord 0037 Pick Format from Old Head Numbers Numbers E72 a STE a 0037 Increment Up increment Up by 1 gt New Number Format Enter a New Number Format l Notes Set Enter a New Number Format to No to use the next Head Number in sequence Set Enter a New Number Format to Yes to use enter a different number sequence or type of number Summary of Old Head Number Picked Head Number SBFord 0037 Folder T est File chev xchystk pt Test Time amp Date 12 27 pm 09 17 1999 Use Number Help Cancel Print you save the Engine File and can be printed out with the Engine Specs when reports are printed Sho
313. tering Heavy C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Graphs Comparing More Than 1 Test Basic Version There are 3 basic types of tests which can be graphed in the Basic version Figure 3 15 Graphing Multiple Tests Basic Version j n wes aaa ee i Choose Add Last Test to add the L a TEPUS D a i last test you had added to the graph ee eee i i or comparison Test Folder and with on the Main Screen o choose a New Test File name are shown for your info DataMite Analyzer v2 0 REEDO9 CFG e Last test results graphed These are the test results which you previously included in the graph for comparison 468 File Format View Graph Type Add Test Help This allows you a way to z easily refer back to one n E j 1 ko thrause yam 200 ct BW est particular test for comparison e Add Test lets you pick any test Corr Tq Corr H from the Test Library to compare to the Current test results This test now becomes the Last test results graphed In the Basic version you can only compare 1 additional test to the Current Test If an additional test is graphed for comparison the Add Test command changes to Remove Test You must first click on Remove Test before the Add Test command reappears so you can add a different test Graphs Comparing More Than 1 Test Pro Version There are 3 basic types of tests which can be graphed in the Pro version e Current test results These are the
314. ternal weather station records its raw weather Use Calc Value Help Cancel Print readings with each test This is different than all previous data loggers including the DataMite II For these other data loggers these calibration factors were only used when the weather station was being read when the test was downloaded to the computer If you changed 60 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions PE SS SS SS SS SS A E the weather station calibration factors after that there was no change to the weather readings All that will change will be the weather readings for any new tests downloaded With Black Box II s internal weather station weather calibration numbers are stored with each test There are actually 2 sets of weather calibration numbers those stored with each test and those master specs which are stored for the next time a test is run When you click on Weather Station Cal for the Black Box II the choices are e Master Calibration for all Future Testing e Calibration Specs for this Test Only If you are fixing a mistake in the current test you will choose Calibration Specs for this Test Only If you do this you will notice a difference in the Weather Conditions in the Test Conditions screen and the Corrected Torque and HP will be different If you are fixing the calibration of the weather station like you got a new or repaired weather station you will choose Mast
315. test data you recorded 152 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 12 Filling Engine Specs Menu Click on File then Open Example Engine to see if there are some Briggs specs saved as an Example Engine New Engine 3 Geen Eesnde enone Stock Briggs File There are so choose Open Engine v the STOCK BR GGS engine ile to fill in much of this Save Engine Cam amp Heads Save Engine As eee aren you can go Print E E through each specs to make Print Blank Worksheet eam sure it matches your engine lv Dia Windows Print Setup hen you are finished changing the specs you Flywheel Wt amp Dia 6 Jis 7 Jin Carbis hould save these specs in Crank Wt amp Descr 4 _ lbs Fuel Delivery Carburetor s he Engine Library This will ave you time in the future in he event you run this engine r Fuel Setting is inal oe ee again Click on File then Distributor Manifold fd Save Engine As to save this Spark Pluss Headers engine file Note that the Gap 03 Timing Muffiers Engine File is only the specs Help Click on the down arrow button to select either 2 Stroke or 4 stroke engine types p15 ou see on this screen not Figure 4 13 Filling Test Conds Menu w Test Conditions Options Back Help If you are going to compare land analyze Corrected torque land HP then it is critical y
316. that looks somewhat different Perhaps you should double check the Test Conds for that test If the Correction Factor is in error it will move the Corrected Torque and or HP curve up or down It will not change the shape of the curve or change the RPMs at which the peaks occur Figure 4 34 can look quite confusing Figure 4 35 is the same data with these changes e Inthe Graph Type menu of Figure 4 32 click on Corrected Flywheel Torque to de select it The graph will now be for only Corrected Flywheel HP e Also in the Graph Type menu select Heavy Filtering e Use the mouse as shown in Figures 4 27 and 4 28 to zoom in on the HP peaks This graph of Figure 4 35 now shows e The longer the exhaust flex the lower the RPM where the HP peak occurs This is exactly what engine theory would predict longer runner lengths move the torque and HP peaks to lower RPMs e All curves show a dip right at the HP peak probably due to the exhaust tuning effects of this engine Exhaust tuning seems most probable because these relatively small exhaust length changes are significantly changing the shape of the curves e In general the 9 50 pipe test seems to have the higher HP over the largest RPM range This seems to be the best exhaust pipe length for HP 168 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples When it comes to optimizing an engine for some particular type of racing HP is the key Optimize your engine fo
317. the Black Box II s mounting tabs Use a flat washer against the rubber grommet and a lock washer against the nut The same procedure is used for the DataMite II except 4 screws are used The standard mount for the DataMite II s push button control panel is to attach the supplied high grip Velcro strip to the mounting location Peel the backing from this strip and press it firmly onto a clean dry oil free surface Do not touch the adhesive surface The surface should be smooth flat and away from heat 65 85 degrees Then simply press the control panel enclosure with its own mating Velcro strip into this mounted Velcro You should hear an audible snap when closure is made Note Performance Trends has extension cables for the DataMite II s control panel and the serial connection to the computer 5 Determine Cable Routing It is recommended you do not lengthen or shorten the DataMite harness unless you solder and shrink tube all connections and are familiar with good electronic cabling practices Therefore be sure all wiring reaches the sensors ignition power and ground This may effect where you mount the DataMite module Excess wiring can be stored in a location by the DataMite away from the engine s ignition system 6 Install Wiring Harness 192 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices SSS SSS C a SSS SSS a a SSS ee With the harness NOT hooked up to the Black Box or DataMite module string the connections a
318. the Engine RPM or Dyno Wheel RPM can cause major errors in calculating torque and HP Noise spikes can also cause problems when the program tries to find the beginning and end of the dyno run Note that editing out noise spikes and having the program find the beginning and end of the dyno runs can also be done at anytime in the future See Section 2 10 Editing Tests Analyzing Data The Main Screen should now look like Figure 4 16 with a graph of the dyno run on the right side and a table of corrected torque and HP numbers on the left side The specs which determine the RPM increment for the data table or how much filtering smoothing should be done to the data on this Main Screen are in the Preferences menu See Section 2 2 Preferences Checking Data Quality You should always look at your data with a skeptical eye Always try to make the data prove to you that it is good and accurate A first step in this process is to check the quality of the raw data recorded For an inertia dyno that is the Engine RPM and Dyno RPM The easiest and best way to check data quality is to graph these 2 channels vs time Data graphed vs RPM has been more mathematically manipulated and is not as close to the original data as when graphed vs time Figure 4 15 Messages After Download DataMite Data Message stating that data looks clean or ree of what appears to be bad data points Message to acknowledge data was read
319. the throttle or if you had started to close it Also do not pick an RPM range larger than what you will use in the vehicle For drag racing where the transmission may allow the engine to stay in a relatively narrow RPM range an RPM range from 10000 to 12000 may be correct However this engine is used in circle track and road racing so a wider RPM range is used in the vehicle Your experience tells you to enter a range from 8000 to 14000 RPM 169 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples SSS SSS M We also chose to include Observed Torque and HP in this report as a check If the comparisons between Corrected data does not match the Observed data it may be useful to double check the weather conditions in the Test Conds menu for each test or rerun the test We will do a report comparing multiple tests the same 5 tests we graphed Check Section 3 1 Reports to see how this is done via the History Log Figure 4 38 Report Showing Average Torque and HP from 8000 to 14000 RPM for All 5 Tests Check options with History Log and Multiple Tests for comparing 2 or more dyno tests as shown here A Dyno DataMite 3 2 Performance Trerds yam 1000 CFG B gt Back Print Report Types File HistorfLog Single Test Multiplk Tests Help F1 Operator Tom 5 19 pm 01 02 2000 Pk Tq 8 40 9500 2 047 Bore E Comments Eng Yam100 0003 Corr To 29 92 60 dy Pk HP 15 71 10000 1 815 Stroke Customer Peterson
320. the user are the key to properly understanding and using the data If confusing results are obtained take a minute to Plot the Raw RPM data and see if that looks correct See Appendix 3 on Troubleshooting If the Raw RPM data looks OK double check all your data input like Dyno Specs DataMite Setup Specs etc Refer back to this manual especially Appendix 3 Troubleshooting and Example 4 1 on dyno testing procedure Ask someone else skilled and experienced in the particular area Give the retailer or Performance Trends Inc s Tech Help Line a call for an explanation Also computer programs are written by people so it s always possible there may be an error in the calculations Your phone call may help us correct it Please also read the Warranty and Warning at the beginning of this manual and on the diskette envelope IMPORTANT The Dyno DataMite Analyzer program will ask for dynamometer specs and measurements and engine specs The Dyno DataMite Analyzer program is NOT checking for safe RPM limits of the dynamometer or engine design You must have your dyno design checked by a qualified engineer to determine its safe operating RPM range C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction 1 4 Getting Started Installation You must install the Dyno DataMite Analyzer from the CD to a hard drive before it will run To do this generally you can simply put the CD in the CD drive and close the do
321. the wheel to the approximate bearing temperatures you think you will see during your dyno testing 3 Click on Current Readings at the top of the DataMite or Dyno screens to display a tachometer for the inertia wheel 219 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices 4 Accelerate the inertia wheel to the highest safe RPM you will encounter during your dyno testing 5 Disengage the engine and let the inertia wheel coast down DO NOT brake the inertia wheel or do anything to add drag to the system Disengaging the engine is easy with this one way clutch dyno because the act of simply closing the throttle disengages the one way clutch Note that the drag of the one way clutch does add some drag to the system over what would normally be present but this can not be easily avoided 6 Soon after the wheel starts to coast start the stopwatch and note the dyno RPM at that time Lets say this was 1290 RPM 1 EngRPM 1 Cylinder 2Stoke 3f 4 gagyq Dther RPM 1 Magnet 7 Note the time on the stopwatch at some RPM which is about 2 3rds of the RPM 2 Dyno Wheel RPM 1 Magnet 4 Ls Not Being Used at which you started Lets say the dyno Install Optical Isolation Box for this screen to avoid possible computer damage RPM dropped to 1010 RPM in 80 seconds 8 Stop the stopwatch at some RPM which is about 1 2 to 1 3rd of the RPM at which you started Lets say this was 755 RPM at 180 seconds that is 180 seconds after you
322. tial damages and some states do not allow the exclusion of implied warranties so the above limitations or exclusions may not apply to you No action regardless of form arising out of any claimed breach of this agreement or performance under this agreement may be brought by either party more than one year after the affected party learns of the cause of action Refer to diskette envelope for full license agreement FEES GIGS GOGO GSoC WA RN NG GaGa SSG III III III ICI ICI ACI 2K ak The DataMite Analyzer makes calculations based on equations and data found in various published and heretofore reliable documents The program is designed for use by skilled professionals experienced with engines and Tests The following processes are hazardous particularly if done by an unskilled or inexperienced user Obtaining data to input to the program Interpreting the program s results Before making measurements of or modifications to any Test engine or driving situation DO NOT FAIL TO Regard the safety consequences Consult with a skilled and cautious professional Read the entire user s manual Obey all federal state amp local laws Respect the rights and safety of others Acknowledgment Tom Krause of TDK Motorsports has been instrumental in bringing modern accurate inertia dynos within reach of the average cart racer The TDK website http www 1 cedar rapids net tdkmotors Has shown many how relatively easy and inexpensive i
323. ting the inertia wheel and engine coast slowly to a stop This coasting time could take well over a minute Problems could arise because the ignition is off but the carb still metering fuel fuel dilution or washing the cylinder walls or lack of lubrication on 2 stroke engines Downloading Data After you have recorded a test with the Black Box you will be brought to the New Test screen which will likely show a Tip message See Figure 4 10 As the Tip in Figure 4 10 says it is usually easiest to start with a Dyno Test file that is as close as possible to the dyno test you just ran This prevents us from having to make major changes to test information like the Engine Specs Test Conds etc However assuming you have not tested an engine like this one before you can start this test with Figure 4 10 The New Test Screen with Tip After Recording Data Test amp Engi 2 560 Bore save Data Ctrl N Current Readings Weather Cancel don t start new test lt Esc gt Operator i Folder File Name for for New Pick Enma _Assign Name for Le New Test Test Test New Test Setting U1 CFG TAN My Tests 2 437 Stroke 12 54 cid 4C Pick Which Specs to Keep based on current file Setting Up CFG M Dati DataMite Data Analyzer 3 2 Tip 1 056 Corr Fe Test Data Point RPM Any Specs which you Pick to Keep for this New Test will Dyn be based on the current test Eng Setting Up CFG
324. tings section as shown below Saving Report Settings lets you easily reproduce a particular type of standard report you have created Figure 3 6 Screen to Open Edit Save Report Settings i Report Data Basic Report Specs Type Pick Individual Items Time or RPM Report RPM What to Report Just Power Run 1 x Filtering None Range of Data Starting RPM Ending RPM RPH Increment k Use MM SS_SS Time Include Averages Start Average At Stop Average At Make Report Help Cancel pen Edit Save These Settings z Saved Report Setting Accel Times Saved Report Settings Name Tq amp HP vs RPM 4000 70 S ve OK Delete _ To obtain comparison reports of 2 or more files click on History Log or Multiple Tests at the top of the upcoming Report Screen Click here to open the Saved Report Settings section shown on the right 106 List of Saved Report Settings Click on an item in this list and its name will appear in the Saved Report Settings Name box where you can change it and Save it again click on OK to Open it or click on Delete to Delete it from the list You can type in most any name you want here then click on Save and all the settings on the left side will be saved to this name When you want to recreate this exact same type of report you can just open it again by picking this name C Perfor
325. tion of Master DataMite Specs system Or you could have changed any DataMite spec different sensors A Test File contains the raw DataMite data and other different calibrations etc Your current pecs to calculate Tq and HP and analyze results DataMite II specs do not match the specs for TestCh4 If you open the old Test File TestCh4 TestCh4 the program installs the 4 The program keeps Channel DataMite specs which you used j separate records of your when you ran that test This lets you Master DataMite Specs accurately calculate torque and HP and os the specs describing the other data just as you did when you first o DataMite you are ran the test l ee currently using These Master DataMite Specs If you go into the DataMite Specs menu are used whenever you you will likely get a message shown in Figure 2 12 saying that the DataMite Specs for TestCh4 do not match your Master DataMite Specs the specs for your current DataMite II 31 Channel system You may ask What are Master DataMite Specs ype 4 Channel Ch 1 EngRPM 2 cyl 4 stroke Ch 1 Ex Temp 0 1600 deg The program keeps track of any changes to DataMite Specs asking you if these changes should only apply pie Note that the DataMite Specs for a particular test may not match the DataMite Specs for a particular dyno test s s DataMite you are currently using the Master DataMite Specs or if these changes represent your actual Dat
326. tions Desired Accel Time sec Is the time for the engine to accelerate from the Starting Engine RPM to the Finish Engine RPM Generally you want this time to be from 6 to 12 seconds If you go quicker than 6 seconds the data will not be as accurate Total Gear Reduction Is the total gear ratio between the engine and inertia wheel This should be the Gear Ratio you have entered in the Dyno Specs menu and is set to this when you first open this menu Current Readings Click Current Readings to display the screen showing current readings for most sensors This screen can be very useful for troubleshooting problems with signals or for watching the engine through a dyno test like a tachometer See Section 2 7 for more details Help Click on Help for help on this screen 2 6 1 Torque Arm Torque Measurement This is the type of dyno most people are used to The engine s crankshaft is connected to an absorber like a pump generator etc The power absorber s outside case can float in bearings A torque arm is attached to the absorber case which prevents the absorber case from turning The force in this arm is measured and then knowing the distance from the center of the absorber out to the torque arm torque can be calculated See Figure 2 23 Figure 2 23 Torque Arm Type of Dyno If this is your type of dyno choose Torque Arm as the Torque Measurement type The dyno screen now becomes very simple as shown in Figure 2 24 See Ap
327. top which must be filled out or picked If this is the first New Test you have run you just got the program and you had not already entered the Master Dyno and DataMite specs there would be no summary of the Master DataMite or Master Dyno specs You would have to fill out the Master Dyno and DataMite Specs before the program would let you start a New Test Filling Out Other Specs other than Figure 4 11 New Test Screen 5 Critical specs for the new test are listed here at the top Click here to save the data you recorded Save D fa Ctrl N Cancel don t start new test lt Esc gt Current Readings Weather Help Operator p Folder File Name for AE New Pick a _Assign Name for Add Wet New Test Test Test New Test Setting U1 CFG STAN Eas My Tests 7 Meas Tq HP from Pick Which Specs to Keep based on current file Setting Up CFG DataMite See Specs Type Black Box II See Specs Inertia Dyno 69 9 Ib x ft 2 See Specs Keep this box checked if you want to copy the current test s Engine Specs to the New Test Dyno Engine Test Conds Sep Specs Keep this box checked if you want to copy the current test s Test Conditions to the New T est Keep this box checked to use comments below for the New Test Note that you can erase and change these comments here EXHAUST TEMP PROBE IN MUFFLER NOT EXHAUST Once a New Test is started you can easily erase or modify any of the specs listed above An
328. tory Log 5j Printout shown in Save Ctrl S Figure 4 22 Save s Ctri Open from Floppy CD Drive A 5 Drive Save to Floppy CD Drive amp Drive Search For find Runs Print this Main Screen Ctrl P Print Other Screens Windows Printer Setup Unlock Program Options Transfer Program to Another Computer Exit Program Ctrl 9 76 5 90 c10 157 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Figure 4 22 Test Summary Printout Your company name and information can go here Click on Preferences DataMite Analyzer v3 2 P rformance Trends Inc _ 248 473 9230 8 gt 0 2000 2500 3000 3500 4000 4500 5000 5500 6000 2 560 Bore 12 54 cid 4 Cycle PkTq 9 82 3000 1 13 am 02 25 2005 2 437 Stroke 1 056 Corr Factor PkHP 6 59 5000 Operator Jack Test Data corr to 29 92 60 deg dry air RPM Tq HP RPM 2000 5 56 2 10 3400 2200 7 67 3 17 3600 2400 8 75 3 97 3800 9 57 4 70 9 74 5 15 9 82 Pk 5 56 9 76 5 90 In Version 3 7 you can include a Comparison Run of the previous test in this printout also and a Performance Estimate See Appendix 7 158 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Conclusions e The installation of the Black Box II hardware is critical and is covered in Appendix 2 e DataMite and Dyno settings are critical for accurate data These specs are saved in Master files so each new test starts with the
329. ue and HP data and the jumpier less smooth the Main Screen graph Main Screen Filtering Level This spec lets you pick how much filtering smoothing the program does to the RPM and MPH data on the Main Screen much like the similar spec for Reports The higher the filtering the less jumpy more smooth the Main Screen s graph Tq HP Use Same Graph Scale Set this to Yes and Torque and HP are graphed to the same scale on the graph on the Main Screen Set to No and the Torque Scale is on the left side and a different HP scale is on the right side Set this to No for engine s where the torque level and HP level are very different like very high RPM engines 22 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Filing System Tab Default Floppy CD Disk Drive Choose the letter of the Floppy CD disk drive on your computer usually A This is the disk drive which will be first opened when using the Save to Floppy CD Disk or Open from Floppy CD Disk File commands at the Main Screen IMPORTANT Saving a file to a CD drive is only possible if your computer has a writable CD drive and the CD has been formatted correctly using the software for the writable CD drive Test Folder Name in Program The Dyno DataMite Analyzer saves tests under different folders directories under the main folder DIMDATA Some users may prefer to have the Folder be called Customer or Engine Family depending how they
330. ulation replaces reading the chart The Wet Bulb Temp must be less than the Dry Bulb Temp 2 8 4 Relative Humidity 83 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions SS SS My Depending on your choice of Method of Recording Weather Data you will be entering either Dew Point or Relative Humidity in the Test Conds menu This is the Calculation Menu you will get if you are using Relative Humidity See Section 2 3 Test Conds menu to see why Dew Pointlis usually more accurate and less confusing than Relative Humidity for entering humidity information Know Dew Point If you know the dew point of the air and the air temperature select Yes Otherwise select No to input Wet and Dry bulb temperatures from a psychrometer Depending on your choice the appropriate inputs are enabled Outside Air Temp deg F Is the outside air temperature when and where the Dew Point measurement was made This is not the temperature of the air which enters the engine Dew Point deg F Is the air s Dew Point in degrees F as reported by a weather service or measured by humidity instruments Dry Bulb Temp deg F Is the temperature of the dry bulb thermometer on the psychrometer in degrees F This is also the temperature of any thermometer mounted in the shade when the Wet Bulb Temp reading is taken The Dry Bulb Temp must not be less than the Wet Bulb Temp Wet Bulb Temp deg F Is the temperature of the wet bulb the
331. unlocking code free You can also email in the numbers to feedback performancetrends com C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 1 Introduction 1 3 A Word of Caution To install the DataMite data logger you must install some sensors on the dyno This is covered in Appendix 2 If you are not familiar with proper safety precautions when working on engines or rotating machinery HAVE A QUALIFIED MECHANIC OR ENGINE BUILDER HELP YOU Dynamometer testing can be dangerous Engines do fail possibly throwing shrapnel and burning fuel in all directions Take the proper precautions using shields and high quality fuel system components to minimize these dangers PLAN for the engine or even the dyno failing and you will cut down on the chances they ever will The Dyno DataMite Analyzer has features which estimate the engine s performance based dyno data some user input and assumptions These estimates can be used for analysis of engine performance on the race track or on the street However these assumptions like knowing the friction losses in the dyno system accurately knowing the inertia etc limit the accuracy of these estimates See other assumptions in this manual listed under Assumptions and Accuracy in the Index With any data acquisition and analysis the computer can help the user by automatically doing various calculations plotting the data easily etc However the computer is not thinking for you You
332. uple of weeks Transfer Program to Another Computer Exit Program Ctrl x Save Select Save if you want to save the current test and any recent changes to the same name as you are currently working with This is the file name shown in square bracket at the top of the Main Screen Save As Select Save As if you want to save the current test and any recent changes to a new name or new folder You will be presented with the menu discussed in Section 3 5 where you can change the test name change the folder you are saving it to or add a new folder name Open from Floppy CD Drive Save to Floppy CD Drive The Open command provides a simple click command to open a standard Windows File Open menu displaying the contents of the disk in the Floppy or CD Drive The Save command provides a simple 1 click command to save the current test file to the disk in the Floppy or CD Drive to the same name as is currently being used IMPORTANT Saving a file to a CD drive is only possible if your computer has a writable CD drive and the CD has been formatted correctly using the software for the writable CD drive These commands provide a convenient method for copying files from one computer to another The drive letter A or B that the program defaults to can be changed in the Preferences menu Section 2 2 Advanced Users This command copies all 3 files which make up a test file the CFG DAT and LAP file See Section 3 5 Data Libraries Search For fi
333. urce of the noise spikes Although accuracy improves by editing the spikes out it is best to eliminate spikes at the source if you can Other Graph Specs Time or RPM Graph L a To see Noise Spikes graph the raw data not calculated data like torque clutch slip etc vs Time with Filtering set to None See Figure 2 45 for typical Graph Specs to show Noise Spikes Notes If you selected to have the spikes edited out when the data is downloaded it is eee REM gai heats unlikely any more spikes will be found again This edit command is most Chnl 2 useful if you did NOT edit out the spikes when the data file was first Chnl 3 Chnl 4 Make Graph Help Cancel Print downloaded Note Noise spikes are different than the jumpy or noisy data that filtering is designed to fix Noisy data is noisy or jumpy throughout the data file Noise spikes occur here and there and jump out from the rest of the relatively smooth data Figure 2 46 illustrates the difference between noisy data and noise spikes Some times the noise spikes are too numerous or come so close together that the program can NOT determine what is real data and what is a noise spike In cases like this especially if the noise is in Engine RPM and absolutely if the noise is in the Dyno RPM for Inertia Dynos you must eliminate the source of the noise and run the test again Ifthe noise spike is in a channel that is no
334. utions typical 4 stroke Again you may have to adjust this input to match your engine For example a Briggs amp Stratton engine fires each revolution even though it is a 4 stroke engine with a cam and valves For the Briggs engine you would specify Cylinders as 1 and Engine Type as 2 Stroke Note you could also specify Cylinders as 2 and Engine Type as 4 Stroke to obtain the same RPM data If you are having trouble recording an accurate smooth Engine RPM signal read the tips at the end of this section It is possible to calculate Engine RPM from Dyno RPM with the correct program setup Notes on RPM Data Engine RPM as with most of the other RPMs is not going to be off just a little bit It will be off a lot if you put in the wrong calibration specs For example if you put in Cylinders as 1 and Engine Type as 4 Stroke for the Briggs example above you would obtain RPMs exactly double what they should be If you should read 5000 RPM you would read 10 000 RPM if you should read 3000 RPM you would read 6000 RPM etc Therefore it is easy to find errors in calibration You may have to adjust these inputs to make the Engine RPM read correctly It is recommended that you only change the Engine Type or drop the Cylinders by one half then one half again This means on a V 8 you might try 4 cylinders half or 2 cylinders half again but not 7 5 or 3 cylinders If you think the recorded RPM is off only a little bit you thin
335. v Thick Edit Printed Comments and Data Outpi pu i Grid Style Thickest Back Color er Click here to turn Off and On Data Multipliers Data Multipliers like x 1000 make it possible for small data like 5 BSFC to show up on a graph which also includes 500 HP However sometimes the programs choices of data multipliers is not good and you may want to turn them off Other Format options like Line Style Grid Style and Back Save Open Edit Current Format command is shown below Note that you can just press the lt F3 gt key to do this command also w DataMite Analyzer 3 2 yam 950 CFG _ Back File Format View GraphType AddTest History Log Single This screen will appear quickly by just pressing AJE SAAKQAIRE the lt F3 gt key 1 5 a 5 wes vi time Color let you change the appearance of the graph and the printed graph The Preference section also shows you how to customize the colors of the graph lines Tat AVES a Pick one of the saved formats The format TqHP 6960 7680 18 30 includes what data is graphed RPM or Time Graph Filtering all data in the Graph Data screen plus the X and Y axis scaling This is where you type in a new graph format name to save or where a saved format name you have clicked on will appear Graph Format Name ox Delete Close E eep Vertical Y Scales k eep Horizontal gt lt Scales Tum Auto Sca Current Graph Format is Auto Scaled These check boxes let you sa
336. ve A Drive Disadvantage of Paper Back Ups Save to Floppy Drive A Drive For example say you have accidentally erased a Dyno Run File but Print have a paper report of that data There is no way to re enter the indows Printer Setup DataMite data You won t be able to recalculate that data correct Dice Proper Gran the data to a new Weather Conditions compare new data to this old Tipnsfer Program to Another Computer data etc Ext Program Ctrlex Copying data to disk with Windows commands Click here to print a Test Summary This method is the preferred method If you are not familiar with Windows commands have someone help you the first couple of times However this is the most reliable and most efficient way to back up your data Note Unless stated otherwise all mouse clicks are with the normal left button on the mouse To copy Entire DTMDATA Folder using Windows 95 98 Me XP 2000 or NT which contains all folders and test files in the Test Library Click on Start then Programs then Windows Explorer usually at the bottom of the list of programs You will obtain the Windows Explorer screen shown in Figure A4 2 Locate the PERFTRNS PTI folder may not be printed in capital letters on the left side of the Windows Explorer screen usually on the C drive Click on the sign to the left of it to display the contents of the PERFTRNS PTI folder You should now see the DTM20 folder Click on the sign t
337. ve different types of saved scales will have no effect scaling If the graph is currently autoscaled the program is picking the scales the saved scales will have no effect 121 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples Other View Commands The View menu has 2 commands which let you view the Correction Factors and Test Comments of the current test and any other tests you have graphed with it This lets you quickly see why a particular graph may look the way it does Figure 3 24b Other View Commands w DataMite Analyzer 3 2 yam 950 CFG DataMite Analyzer Back File Format View GraphType AddTest Histon B Correction Factors for Current Tests BIE Zoom v Full View Corr To 29 92 60 dy Cor Factor 1 012 yam 950 1 C Specify Scales axes Cor To 29 92 60 diy Corr Factor 1 012 yam 1000 1 17 50 r D Corr To 29 92 60 dy Cor Factor 1 012 yam 975 1 Corr To 29 92 60 dy Cor Factor 1 013 YAM 925 H Tum Cursor On Cor To 29 92 60 dry Corr Factor 1 067 YAM 900 1 Correction Factors Test Comments Test File yam 1000 1 Yamaha Pipe test 12 7 98 Lo 1 1 8 Hi 3 8 G2 10 flex Test File yam 975 1 Yamaha Pipe test Cancel Print 122 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples 3 4 Printer Output Check Appendix 7 page 223 New Features in Version 3 7 for latest features The Dyno DataMite Analyzer can print th
338. w specifies if it is an Analog or Frequency channel and the channel We ve added new Preference and a method of doing calculations much faster for displaying the Current Readings screen for the USB DataMite Black Box II and DataMite II Note Do not turn On this Preference unless you need it like your Current Readings screen if hanging up or freezing Typically you do not need this Preference turned On unless you are recording from lots of sensors especially A F sensors which are not the gauge style like the DT2 AF1 or DT2 AF2 There are now one click Backup and Restore commands to backup all your data files and restore them from a backup Click on File at the top left of the main screen then either Backup Test Data or Restore from a Backup See Fig A7 3 Program now prints graphs better for different printer types and screen resolutions We ve made the Main Screen and graph screen size adapt for wide screen aspect ratio However the screens now only work well with 600 x 800 resolution or higher not the old 480 x 640 Program now better remembers a printer change and printer orientation landscape vs portrait change We ve added a Troubleshooting button on Main Screen to graph critical data channels used to troubleshoot dyno runs See Fig A7 2 We ve added File Name as the possible things to Filter to locate a certain test file Click on Open from all saved tests then Filter then choose File N
339. w Test is critical for shops who use a engine numbering system Click on Assign to create a new Engine based on the last Engine assigned incremented up by 1 or to start with a new type of Engine If you want to type in most anything you want for an Engine Number or leave it blank go to the Preferences menu and set Allow Direct Entry of Engine Numbers to No 4 Folder Name for New Test is the folder in the DIMDATA folder where the test will be saved The program may not be using the name folder for this spec but whatever word you have assigned in the Preferences menu at the Main Screen The folder name Examples is reserved for Performance Trends example tests supplied with the program and can NOT be used for your tests 5 Type of Test describes what type of test was run and how the data should be analyzed and divided up into runs This is the same spec as the Test Type in the Test Conds menu Click on down arrow to select the type of test you ran This choice can have a large impact on what data is graphed and analyzed Your choices are basically e Dyno Run to measure torque and HP e Custom Test which would be anything else Notice that some of the choices are not used as they are used for Test Types in the vehicle versions of the software When you are ready to start the new test click on Start New Test at the top of the screen If some critical specs has not been entered the program may warn you and ask you for it at that ti
340. want to calculate compression ratio from chamber volume deck height etc simply click on the Clc button The program will display a new menu listing the inputs and the Calc Compression Ratio from these inputs For further explanation click on the Help buttons in these menus To use the Calc Compression Ratio calculated from these inputs click on the Use Calc Value Figure 1 7 Pro Version s Engine Specs Menu Showing Clc Button button Otherwise click on Cancel ETT TTT to return to the Engine Specs Gack rissa menu with no change to Engine Customer amp Comments Compression Ratio Section 2 8 Engine Can C o Yamaha Calculation Menus explains all am100 0003 Peterson gt these calculations Short Block Cam amp Heads Cylinders fi Stroke Once you feel comfortable Rod Length CR ci 9 90 VivDia PortCCs Fi Ratio changing specifications in the 597 cid 97 9ccs Chmbr 11 Nccs various menus and making l E _ various graphs and reports read a Zz Section 3 5 of this manual called i Intake amp Exhaust Data Libraries to learn how to save tests or recall tests which Clc button calculates the value of have been previously saved Then this spec based on other inputs you will know all the basic commands to operate the program For a more in depth knowledge of using these commands and an explanation of the results read this entire manual C Performance Trends Inc 2005
341. was the last one recorded You can select to download this segment by default or any of the other Cylinders segments recorded Engine Type 2 Stroke Note Pick the cylinders in the engine and 2 or 4 The Black Box II has no memory it passes the data continually to the PC stroke operation For special ignition systems like For that reason it does not require downloading at the end of a run the distributor less you may have to adjust these data is already in the PC But the downside to not having memory is specs for accurate RPM readings you can not use the Black Box without a computer being continually attached It can not store data like a vehicle data logger Use Calc Value Help Cancel Print Channel Settings Channel This column describes the type of data recorded with this channel like RPM On Off Switch Analog Input etc You can not change what is in this column as this is determined by your choice of the Type of DataMite Used Click on this column to set it to Yes or if it is already Yes to blank it out which means it is not currently being used Data Name Click in this column to bring up a screen which simply asks for a new name for this data channel This name is what will be used on graphs and reports when this channel is graphed or reported You can enter most anything you want but be careful The program will let you call a channel Fuel Flow even though it is actually E
342. will walk you through some critical steps to preparing to download data from the DataMite You can select to keep certain data from the previous test like test comments engine specs etc Keeping data can save you considerable time since you don t have to type in information which may be the same as the current test The New Test command is discussed in full detail in Section 2 9 16 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Figure 2 6 File Options at Main Screen Open from all saved tests File Edit Graph Report TestConds Engine DataMite This option presents the Open Test File menu discussed in New start new test Ctri N Section 3 5 Data Libraries From there you have several options to open a previously saved test file from any place in Open from all saved tests Ctrl O the Test Library or from most any place on the computer Open from History Log including the floppy disk drive Save CtrleS Save As Ctrl A Open from History Log Pro version only Open from Floppy Drive A Drive Save to Floppy Drive 4 4 Drive This option presents the History Log a chronological list of test files you have been working with as discussed in Section Print 3 7 From there you can review a summary of the last 25 to Windows Printer Setup 100 tests and pick one to open This method can make it easier to find a file you have just worked with lately say in Unlock Program Options the last co
343. x II as with any electronics away from sources of high electrical noise like the ignition system and wires welders etc It is also recommended to keep it away from high vibration and temperature Because of the internal weather station you must also mount it close enough to the engine s air inlet so that the air temperature and humidity of the Black Box are the same as that of the engine s air inlet The sensors include e Channel 1 is engine RPM from an external Inductive Pickup as shown in Appendix 2 for a single cylinder engine like a Briggs e Channel 2 is recording dyno wheel RPM 1 magnet epoxied to the outside edge of the inertia wheel e Channel 3 is recording exhaust temperature through a Thermocouple Converter Most sensors can be plugged directly into the Black Box I but thermocouples for measuring temperatures need special signal conditioning e Channel 4 is measuring head temperature through the same Thermocouple Converter as Channel 3 e This Black Box II has an internal weather station so it has 3 additional sensors for channels 12 14 For all sensors Performance Trends will supply an instruction sheet for mounting and the routing of leads 143 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 4 Examples DataMite Software Setup Install the program following the instructions of Section 1 4 Getting Started Once the program is installed start the program by clicking on the Dyno DataMite
344. xhaust Temperature Also try to keep names short so they do not have to be shrunk down or truncated in the graphs and reports Sensor and Calibration Frequency Channels If you click in the Sensor and Calibration column for one of the Frequency channels you will be presented with screens similar to those shown if Figures 2 15 if you click on the top row for Engine RPM or 2 16 for most other rows other RPM channels In each screen you choose from the options below and the calibration description is displayed at the top This description is read by the program so it knows how to interpret the DataMite s readings and convert them to engineering units things like RPM degrees F movement in inches etc 53 C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions Engine RPM Calibration Figure 2 15 Cylinders Pick the number of cylinders that obtain spark from the source of the DataMite s ignition signal Usually this is the number of cylinders in the engine However for some engines there may be 2 or more ignition coils A modern distributerless V 8 may have 4 coils each firing 2 spark plugs In that case if you attached the DataMite s engine RPM wire to one of these coils you would use 2 since each coil fires 2 cylinders Engine Type This input specifies how often this spark source fires each cylinder either 1 time for each revolution typical 2 stroke or 1 time for every 2 revol
345. y careful for pushing the R Section is added and watching the Record light p xx C Performance Trends Inc 2005 Dyno DataMite Analyzer Chapter 2 Definitions aS SSS SSS SSS SS SS SSS See SS M MHH or enabled disabled as necessary to represent the new Method In addition all the input specs are adjusted to what they would be with the new Method For example Corr Barometer of 29 3 at an elevation of 1200 feet is converted to 28 03 Obs Barometer with Elevation disabled Elevation is not important when you are using an uncorrected or observed barometer as this type of barometer shows the actual air pressure at the dyno If you change from Uncorr Baro to Radio TV Report with a Corr Baro the program will ask for an Elevation for the track since this is needed to make the Barometer Correction All these different inputs are explained below If you have selected one of the Weather Station options in the DataMite specs screen this input is set to Recorded by Weather Station for you This setting is the same as Uncorr Baro with Dew Pt This is NOT a choice you can make but is made for you by the program when you are using a weather station Then the weather readings in this section are entered automatically by the program and you can not change them Barometric Pressure Corr Barometer Hg This input is used for either Radio TV Report with Rel Hum or Radio TV Report with Dew Pt It is the Corrected Baro
346. y closes this menu and returns you to the Main Screen ia Engine RPM Specs x Calib If you made changes to these specs you will be asked if you want to keep them for the current test If you answer Yes the results of the current test may be changed Enema Space based on these changes This is good if you are correcting a mistake If you Cylinders i o answer Yes you will also be asked if these changes should be saved to the Master Eaei Dyno specs Only answer Yes if all the current settings in this screen match the h 2 Stroke E current specs of the Dyno right now and for the near future Remember that the RPM Source Engine z Master Dyno specs will be used for the next test you download from the Dyno indar in the engine and 2 or 4 stroke operate For special ignition systems like bu File For Dyno Type Engine no Clutch the Engine RPM Open Master Dyno Specs source channel 1 can be the engine or the dyno in Click on File then Open Master Dyno Specs and the Master Dyno specs which Patavii Specs Sereell should be the current Dyno setup will be copied to this screen When you back out of this screen you can then keep these Master Dyno specs as the Dyno specs which will be used for calculating this test s results Save As Master Dyno Specs Figure 2 22 Required Inertia Menu Required Inertia x Click on File then Save As Master Dyno Specs and the current settings is this screen will be copied to the
347. y specs not selected fo Keep will be mostly blank whet you start the New Test ou can edit the current comments here or the new test or un check Test Comments to start with blank comments Test Comments A summary of the current settings is given here Click on these buttons to see the current settings Click here to Check or Uncheck these options Checking means you want to keep hese specs for the new test Once the new test is started you can then make modifications to these specs if you want DataMite or Dyno Specs to Start a New Test If you want to modify some specs from the previous test click on the See Specs buttons for each category of specs Click on Help at these menus for more info on how to enter these specs Since you have not run a Stock Briggs engine before the engine specs currently loaded for a Yamaha are probably quite different than the Briggs you will run You can either choose to enter these or change these specs now before you download data or change them after you download data You choose to do it now before downloading so click on the See Specs button for Engine Specs Figure 4 12 and Test Conds Figure 4 13 to enter these specs Of these specs the Weather Conditions in the Test Conditions menu are the most critical as they will affect the Corrected Torque and HP numbers Since you are using the Internal Weather Station these readings will be updated automatically after you save the
348. y start on the right end channels 13 16 then 9 12 etc If analog channels are turned On they usually start on the left end channels 1 4 then 5 8 etc Generally timer and switch channels and the accelerometer channels for analog channels 17 and 18 are all turned On For dynamometer applications you are not likely to use the accelerometer or timer channels As you attach sensors you must remember that you must also let the software know which sensors are attached to which channel This is done in the DataMite Specs screen 3 Build Brackets Mount Magnets for RPM Sensors For dyno shafts epoxying the standard magnets supplied to the outside of the inertia wheel works well For an additional charge Performance Trends can supply other types of magnets for other installations including e Tiny approximately 1 4 diameter 050 thick magnets to be epoxied in place These usually work better on driveshafts or smaller diameter shafts or wheels e High temperature magnets which withstand higher temperatures Figure A2 1 B Spacing Required for e Small plastic bolts 1 4 x 20 with magnets embedded in the head for RPM Sensor and Magnets mechanically fastening the magnets Epoxy the magnets in place following the directions with the epoxy Be He eae o 050 to sure the mounting surface is clean and grease free We recommend using 200 gap light sand paper or oil free steel wool to clean the surface The epoxy Wheel RPM Sensor shoul
349. yno Specs screen with the new settings loaded This way they will also get saved as the new Master Dyno Other Specs Wheel RPM T285 aoa 642 Twee ean reads HPLoss 18 10 05 dyno p 67 Dyno Type Engine with clutch v Total Gear Ratio 4 Kees Max OD 24 0 limit RPM to 2222 More Info on RPM Limit 236 Third RPM 642 at 232 10 sec currently 700 at 250 sec Do you want to use these new results For your Coastdown data No The program gives you a summary of the coastdown data as it sees it and compares it to the current coastdown settings From here you can choose to keep the settings Yes or not No This new Coastdown Test Type is a way of automating the procedure outlined in Appendix 6 Coastdown Test C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 9 New USB DataMite Data Loggers are Supported Larger DataMite III USB Smaller More Affordable with more channels DataMite Mini USB Figure A 7 10 Some New External Signal Conditioning New More Accurate Older now Obsolete New Inductive Pick Thermocouple Amp Thermocouple Amp Up w Adjustment 5 eel New sensitivity adjustment screw to adjust the signal strength stronger or weaker Prior to this the signal strength had to be adjusted by putting more wraps on the plug wire or moving the pickup wire farther away 237 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Figure A 7 11 New Features
350. you The ONLY reason to restore data is if you have lost test files This could be because you mistakenly erased it you had a major computer failure or you are moving the program to another computer Do NOT restore data unless you have one of these problems as you could possible create many more problems than you are trying to fix When restoring test files and folders you pretty much reverse the procedure for backing up First you put your backed up floppy disk in the floppy drive Then open Windows Explorer find the Floppy drive icon and click on it to display its contents Right click on the folder you want to restore and select Copy 209 C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Now find the DIMDATA folder under DTM RR20 under PERFTRNS PTI usually on the C drive Right click on the folder 1 level UP from the folder you are restoring For example if you are restoring the test file folder CHEV which was in the DTMDATA folder you must click on the DTIMDATA folder If you are restoring the entire Test Library folder DIMDATA you must click on the DTM20 folder If you are restoring the test file 194 150 which was in the CHEV folder under the DTMDATA folder you must click on the CHEV folder During the restoring copying process Windows Explorer checks to see if it is overwriting an existing file Figure A4 3 If it is it will ask you if the existing file or folder should be overwritten Be very careful w
351. zer Figure A5 10 Calibration Table for Non Linear Sensors w Other RPM Specs RPM Sensor Specs Sensor Analog Converter Sensor Type Custom user supplies t ble Analog Sensor Specs fi st Value engineering units fo fist Value freq hz Read 2nd Yalue engineering units 2nd Yalue freq hz Read eva Note Pick the location of the sensor and of magnets or targets if a different type of sensor is being used on the rotating component Keep Specs Help Cancel Print 218 Calib Cstm Table 1000 0 8 200 9 400 11 Sensor Zalibration T able Counts Data Counts Data F G f Counts A Rows R ad DataMite Clear Row Insert Row Delete Row Clear All Rows Appendices Choose this Sensor Type for entering a calibration table Enter pairs of numbers for the calibration curve In this case for an Analog Converter the 1 column is in counts from 0 1000 For the DataMite this column is typically 0 5 volts These buttons are used to more easily fill the table The Read DataMite button will read the DataMite signal from the sensor and insert it in the row where the blinking cursor used for typing in numbers C Performance Trends Inc 2008 Dyno DataMite Analyzer Appendices Appendix 6 Coastdown Test A coastdown test for a inertia dyno is one where you bring the dyno inertia wheel up to a fairly high RPM and then let i

Dyno DataMite Analyzer V3.7 for Windows User`s Manual

Contents

Download Pdf Manuals

Related Search

Related Contents