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Drag Race DataMite Analyzer V3.2 for Windows User`s Manual

1. Make Graph Help Cancel Pant 100 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 5 Data Libraries The Drag Race DataMite Analyzer allows you to save recorded DataMite Data and related specs Vehicle Specs Track 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 23 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 Total Tests in Library under this Folder IA Drag Race DataMite v3 2 Performzace Trends gto0201 CFG Name of chosen Test s LogBook DataMi ep Sen currently highlighted in Test List Click and drag slide Be bar to view all Tests review oo nine Te in list ype of Run Drag Race Runs Air Temp 54 Track Len 124 Mite Preview of Test chosen Air Densty 3500 1 94 D Air Dnsty 3875 E T 11 539 wind MPH 5 Single click on a Test pIJ tE 1 z r Time 12 04 pm Date 05 24 2001 to choose it for 046 rod weight 3705 1st 10 pairs bad track preview Double cl ick anticipated 3rd light very early to immediately open it Tests can be saved under various categories folders to Folders help you organize l i jl P D Tip Clic
2. You can also enable the cursor by single clicking on a graph line at 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 92 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Figure 3 15 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 Www the shift key also and the cursor moves faster ij DataMite Analyzer v3 2 A gta0207 CFG Bil Back Me Format View Glagh Type Add Tes Highry Loa Single Test Help graph line at the 25 ILL IT gt Blei Fupew set scaled Cursor is displayed agine RPM Frent Wheel RPM RPM Driveshaft RPM RPM Accel G s vs Time gto0201 1 1 1 1 L 1 1 1 1 1 1 r 1 1 1 1 1 L 1 1 Average button was clicked on so Averages are displayed here Once cursors are displayed you can move the Left one by simply clicking on a line Hold down
3. C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction Figure 1 4 Graph Options Menu From this Main Screen you can Select Data Types in this section e Choose to review your options by clicking on the menu items at the top of the screen ims Graph Data e Open or save a file of test results and specs by clicking on File in the Engine RPM channel Front Wheel upper left corner and then the Open or Save commands Driveshaft e Edit or review test data settings or comments for the file you are Exh Temp Driven wheel RPM currently working with Drive whl or Dryshft RPM e Graph or report the test for the file you are currently working with peace bcc in MEH e Change the Preferences options to somewhat customize the program for l Other Graph Properties your needs Toe E e Click on File then Unlock Program Options to obtain codes to give to Pick euer Ernie H Performance Trends to permanently unlock the program take out of the ies ERE Distanca Time 10 day demo mode See Section 1 4 What to Graph Just Run 1 e Get HELP to explain these options by clicking on Help Filtering smoothing e Quit the program by clicking on File then Exit Notes i i Data Selected to Graph 4 types max All these options are explained in detail in Chapters 2 and 3 Engine RPM channel Front heel Driveshaft In the Main Screen s blue title bar you will notice the name of
4. drive Fie Eat usta Bak Address ja c All Folders A Desktop My Comp AOL Instant Messenger a A0l25 c Ga eis 5 19 99 3 23 PM 5 19 99 3 23 PM 5719799 3 24 PM 9 99 3 34 Phi 5 19 99 3 24 PM 5 19 99 3 24 PM 5 19 99 3 23 PM 5 19 99 3 24 PM 5 19 39 3 24PM ef BIPZ Appendicies Click and drag the slide bar button to move up and down the list of folders The contents of the open clicked on folder on the left is shown here including both folders and files Right click with the right mouse button on the DTMDATA folder not seen here to open a menu of options Click on Copy to copy the entire contents of the DTMDATA folder the entire test file library DO NOT click on Cut Right click on the Floppy drive icon Then click on Paste to paste whatever you copied in this example the entire DTMDATA folder to the disk in the Floppy drive 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 172 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies ee 55 Floppy Drive icon usually the A drive Put a new formatted disk in the floppy drive Then right click on the Floppy Drive icon and select Paste from the lis
5. All Folders perftrns pti GI comprato E ctd20 5 e430 5 ef31 ade I BERN gy Cale E Combo Eaexmp 1 EF naine F 1 H EN Exploring pfa30 Eile Edit View Go Favorites Tools Help Pfadat E Text E xengine head a ok pti a File Folder File Folder File Folder File Folder PTI File 5 19 99 3 23 PM 5 19 99 3 24 PM 5 19 99 3 24 PM 5 19 99 3 24 PM 5 19 99 3 23 PM 5 19 99 3 24 PM 5 19 99 3 24 PM 8 18 99 2 19PM EZ Back For Address GS C pe Explore Open Eind Add to Zip Add to Pfadatzip Sharing B with Norton Antivirus Send Io Cut Copy Crea Delete Rename Shortcut All Folders I EN Exploring pfa30 Properties Ele Edit View Go Favorites Tools Help e gt Back Foner Up Cut Address L C perftmns pti pta30 All Folders Desktop My Computer ey 3 Floppy A a C AOL Instant Messenger JP Pee mamn E nn Undo x Delete Properties Views Name Size Type Modified Calc Combo Eaexmp Engine Head Prsdat LJ Text EI engine head gt a 4 Lredit exe Drag slide bar to the File Folder File Folder File Folder File Folder File Folder File Folder File Folder File Folder
6. Trace Recorder Data Trace Recorder 2 Channel fi EngRPM Click on Trace Recorder then Trace Recorder Speed at the top ofthe Current Readings screen to display the question shown if Figure 2 36 The higher the pange o 12000 E number of seconds the more data you can see on the trace but you will see it User Specified Max with less detail User Specified Min Sx Note Pick one of the DataMite channels to be displayed 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 Figure 2 36 Setting Trace Recorder Speed Enter the number of seconds you want displayed on the trace a number between 15 and 1500 Cancel ae 55 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 56 C Performance Trends Inc 2002 Drag Race 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 Clec 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
7. is the difference Elapsed Times if Elapsed Times Dif from the first test 217 0 183 0 to the test directly 1 542 0 1 560 0 021 to the left of the 4 557 0 4 572 0 037 Dif column 7 163 0 7 184 0 046 9 443 0 9 470 0 049 11 388 0 11 425 0 047 Engine RPM if Engine RPM Dif 3062 705 3802 35 4446 503 5181 232 4625 593 5221 3 4986 641 5631 4 5288 671 5958 5614 723 6318 Vehicle MPH if Vehicle MPH 0 L 0 Click in this Report column to put a Yes here so this test will be included in the Comparison Report Click on a Yes to remove it w Test History Report Tests Marked Yes Report Current Test Only Clear erase History Print Help Test File and Path Repgft Std Report Title Aunslepot Funs Seve7fun TestDate Type ifun ET MPH gillespie accel gto0201 cfg gto0201 1 05 11 2002 nee Race Runs 11 483 116 23 Time gillespie accel gto0203 cfg GT00203 3 05 11 2002 Drag Race Runs 11 405 116 48 Time gillespie accel gto0202 cfg GT00202 2 05 11 2002 Drag Race Runs 11 42 116 08 Time gillespie accel broged3 cfg broged3 Custom no Win junk junk003 cfg JUNKOOS 0 04 29 2002 Custom no Win shaunuk2 new002 cfg newD02 358196 05 07 2002 292 73 5500 Time shaunuk2 new001 cig new0O1 358196 05 07 2002 292 63 5500 Time french ve0251 09 cfg Ye025109 vss025 11 17 2001 423 97 6100 Click in Report column to select or de select tests for Repor
8. Folder Test Conditions and File Name for o Name tor Ada Te Similar Test New Test Run Run Description New Test broged2 CFG 2 Edgewater analog DragRaceRuns m Comments This gewater Jjanalog v DragRaceRuns pr evious test will then Pick Which Specs to Keep based on current file brogedi1 CFG be the pattern or D 2 See Specs Type 4 Channel Datahite template for the New Test and will save you Vehicle See Specs Veh Wt 2150 Ibs Final Drive Ratio 4 3 Rear Tire Radius 16 5 FronTire Radius 11 7 Trans Auto from having to type in many specs to describe roe Er s Keep All Inputs even those likely to change with each run this New Test This on changing PSSS Lane Right Tree Full 500 Win Time Trial My R T 582 Dial In 9 9 Opynt R T inputs Delay Box 1 113 also ensures consistency between your tests and reduces rack Conds be Specs Track Len 1320 ft Dnsty Altitude 1552 ft Air Temp 72 degF Wind 5MPH Acti Results MPH 139 03 ET 9 896 est Commenfs Keep this box checked to use comments below for the New Test Note that you can the possibility of 1st run humid Important The Onc a New Jest is started you can easily erase or modify any of the specs listed above DataMite Specs fi or Any pecs ngt selected to Keep will be mostly blank when you start the New Test the new test will be from the current These are the comments which you can Master
9. Distance Time sec Both runs look quite clean no noise spikes and quite similar The biggest difference is with Engine RPM Grand Am 1 with the new converter seems to have lower Engine RPM throught most of the run possibly being a tighter converter Click on Graph Type to change the Data Types to Graph for Figure 4 25 s graph Rather large difference in Converter Slip with the new converter bring tighter The program s auto scaling now shows Distance Travelled in more detail You can now see that the Grand Am 1 is slightly quicker higher distance in the same amount of time 137 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples also notice that both runs automatically overlaid correctly that both started at the same time This is also done automatically by the program These are not features you would get in other data logger software even much more expensive software To illustrate some features of the graph screen lets say you wanted to compare the Converter Slip of these 2 runs after the 2 3 shift just in 3 gear First lets zoom in on the 1 2 shift part of the test 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
10. de DataMite Specs Engine Mech Checks Include Vehicle Engine Other Checks Larger Fonts print size T ok Catagories to Print Converter Records Print Report Using These Specs User Defined Records Tip To Pick Log Book Catagories Close See page 141 in Check Include Log Book Entries manual for more info to enable the options above Test Results Report Options Include Track Conditions Include Log Book Entries Pro Version Only Include Test Summary Include DataMite Specs Include Vehicle Specs Check this one box to enable choosing which Log Book Categories to Print Leave unchecked to omit printing any Log Book info Pro version Only Check or uncheck these options then click on this button to print the current report with these options 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 Important Check Include Log Book Entries to enable you to pick which Log Book Categories to include in the printout Uncheck this one option and no Log Book Entries will be included 99 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 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 th
11. 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 32 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 word 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 106 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 History Log Pro Version Only Click on File then Open form History Log at the Main Screen to obtain the History Log shown below in Figure 3 29 This screen shows a summary of the results for the
12. B gt Back Print Report Types File History Log Multiple Test You can only save the results currently displayed on the Report screen Gis ee san If you want to write an ASCII file of a test file you have previously run Rin tt 1 aft i Ta you must open that test file first then create a report for that test file ASCII File Options X Comma Separated ASCII File Options Include Text 7 Convert to Columns Comma Separated My Documents My Save File Cancel Select this option to insert commas between data points Leave this Tip unchecked for data to be arranged in evenly spaced columns Enter a valid file name and path to save ASCII file Refer to page 98 and 102 in User s Manual for definitions of Options Include Text Select this option 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 Drag Race DataMite Analyzer folder dire
13. Test Summary and Comments for 69 GTO 1 Type Drag Race Runs 12 44 pm 07 14 2000 E T 11 539 Event Quaker City Trk Len 1320 Quarter Mile Dnsty Altitude 3500 MPH 111 94 Run 1 Run 1 of 1 Air Temp 84 60 ft 1 536 Desc 1st time run 046 rod weight 3705 1st 10 pairs bad track anticipated 3rd light very early 400 GTO Automatic TH350 Comments C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Cursor The cursor feature is very useful for determining or comparing the value of the graph lines at various places See Figure 3 14 for explaining the use of the cursor Figure 3 14 Cursor Features and Commands Cursor line usually pink or green depending Click here to turn cursor ON on background color 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 You can enable the cursor by clicking on View then Turn Cursor On w DataMite Analyzer 2 0 YAM 925 CFG x Back File Format New Graph Type Add Tast Mistry Log Single Test Help The value of each lal lE N ele elele peje ae Fuview SetSscaes graph line at the Corr Tq Cor HP vs RPM yam100 0003 1 cursor is displayed here yam 950 1 Corr Tg 7 68 Corr HP 13 23 The X value of the cursor is shown here in this case 9050 RPM 6000 8000 10000 12000 14000 160000 RPM 9050
14. The Datakite Analyzer has found Number of runs Minimum run time 14 48 Maximum run time 14 48 Median run time 14 48 NOTE The run times will be 2 5 seconds longer than your ET to show some time before the start and after the traps If this does not appear corect Check the DataMite Setup Specs for correct sensor descriptions Graph the raw data and check for bad data or noise spikes Unusual looking data or noise spikes makes it hard for the computer to recognize normal Drag Race patterns Click on the Edit command to Cut Beginning or End of Data Then erase parts of the data file which may include a burn out driving through the pits etc matt owoe nn 127 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Match Time Slip Pro version Only In the Pro version there is a Preference called Match Time Slip If this is turned On then the program will use the 60 ft ET and MPH you have entered into the Track Conditions menu to fine tune how it calculates distance and MPH This will provide better accuracy in your analysis but only if you are accurate about entering the 60 ft ET and MPH into the Track Conditions menu This matching will be done immediately after the program has looked to find the Beginning and End of the run You may get a message like Figure 4 14 where the correction is less than 1 1 003 The number being so small indicates that littl
15. You can pick from a list Front Tire Radius in cite on of standard transmission 1st Gear p j Drive Layout Rear wheel Dri E ratios or pick one of the eadi 2nd Gear 1 52 User Defined eonia Gid Gear 11 transmissions and enter vour own custom ratios Type Typ Late Model Engine Specs Deu Freien Engin amp Size cubic inches 462 4 cid E oin iE is very important to le Ha led Primary Gear Reduction za the program know if the transmission has a _Help clutch or torque The weight of the Yehicle with the driver in pounds p 20 converter Yehicle Comments 78 Grand Am Tire Radius and Gear Ratios are very important to calculate distance ge 3 traveled MPH tire or Enter most any descriptive comments for this vehicle here converter slip etc Filling Out Other Specs other than DataMite Specs to Start a New Test If you want to modify some specs from the previous run 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 Vehicle Specs are quite critical for some calculated results like tire slip clutch or converter slip etc To check these settings click on See Specs button by Vehicle to obtain the screen shown in Figure 4 9 Again these were the Vehicle specs for the 69 GTO test You should enter the specs for your vehicle the 78 Grand Am If you did
16. 285 0 30 60 90 120 150 180 210 240 270 300 330 360 390 Test History Report Tests Marked Yes Report Current Test Only Clear erase History Print Help Test File and Path enon Sy Heport The Furs Repot Furs Seve7iRun t TestDate Type of un ___ ET MPH 1 3 2 05 11 2002 Race Runs 05 11 2002 Drag Race Runs 05 11 2002 Drag Race Runs Custom no 0 04 29 2002 Custom no 358196 05 07 2002 358196 05 07 2002 vss025 11 17 2001 aillespie accel gto0201 cig gillespie accel gto0203 cfg aillespie accel gto0202 cig gillespie accel broged3 cig Sjunkjunk009 ckg shaunuk2 new002 cfg shaunuk2 new001 cfg french ve0251 09 cfg GT00203 GT00202 broged3 JUNKOOS new002 new001 Ve025109 Click in Report column to select or de select tests for Reporting Slide button right for more History info very similar to Graph History Log Click in this column to putina Yes to signify that this test should be included in the comparison report Click ona Yes already displayed to erase that Yes to de select that test from the comparison report Bi Es 11 483 116 23 Time 11 405 116 48 Time 11 42 116 08 Time Win Win 292 73 5500 Time 292 63 5500 Time 423 97 6100 Timew 109 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 110 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 3 8 Send Data Pro V
17. 3 Click on Send at top of main screen to send data from current file to one of the suspension analysis programs Sos ESNS a m Data Mite Se Data Mite er s aiee is Analog Sensor Specs xi Details Back File DataMite Options Current Readings Troubleshc Calib RF Shock 0 5 5v 0 3 RF ee Type 31 Channel DataMite II Y Com 1 Weathe notin Run DataMite Il Rate samples sec 55 Dataklit een Sport You must select Type one of the 4 Click here to select Data Name hock Travel which channel to Peake Shock Trave i sensor types or aoe eee oe ze BeaNane a Analog Sensor Specs 7 Steering for that Travel sensor EngRPM u Chnl 2 1st Yalue engineering units eo data to be 3 Frequency 3 Chnl 3 fist Value so asd ie recognized as the 4 Frequency 4 Chni 4 appropriate data F 5 Chn 5 2nd Value ineering unit i 5 Frequency n alue engin g units B for the suspension LF Shock 2nd Value volts Read 5 analysis program Steering 0 9 Signal Based On 0 5 Volts x Channel 9 Std 0 5 Volt Chri 10 Std 0 5 Volt gt Note Channel 11 Std 0 5 Volt Pick the location of the sensor and of magnets Channel 12 Std 0 5 Volt or targets if a different type of sensor is being Channel 13 Std 0 5 Volt used on the rotating component _Keep Specs Help Cancet Print De See dl 1 1 1 1 1 1 1 1 1 1 8 7 6 5 111 C
18. 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 23 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 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 24 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 3 Track Conds The Track Conds let you record weather conditions and a summary of the race results In the Pro version these race results are also linked to info you enter in the Log Book and the actual DataMite recorded data can be fine tuned based on these results for better accuracy Figure 2 9 Track 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
19. History Log Pro version only Data Libraries for recording test data and sets of engine specs in the Pro version for later use Run Log listing all tests in the order they were downloaded from the DataMite All these topics will be covered in this chapter Figure 3 1 shows how to reach all these various 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 from Pro version s History Log displays a chronological log of test A Jrag Race DataMiie v3 2 Performance Trends BROGED1 use accel CFG files you have recently Edit Graph Rep rt Track Conds LogBook DataMite Vehicle Preferences Help Send worked with started New get data from DataMite Ctrl N Run 1 new opened made Open from all saved tests s graphs or reports of OpenrorNdistory Log Race Comments etc Section 3 8 Save Cte Tst run humid Help Click on one of the Tabs one he China here to change to a different run ZEN Saving options to Save Openiom FlopRADrive A Drive asc a test file are discussed Save to Floppy DN
20. If the Record LED does switch Off and On try the Setup Mode again Be sure to hold the yellow Record button down for 5 10 seconds During the middle of this time quickly press and release the red Clear Memory key Try this up to 10 times to be sure the problem is consistent If the problem persists call Performance Trends See if the DataMite has an internal problem Run the trouble shooting options in the DataMite screen Figure 3 1 DataMite Troubleshooting Options in Program Click here for Check Com g t troubleshooting options Ports Screen Bend a paper clip into a U and insert the ends into socket 2 and 3 as shown below IA Drag Race DataMite 3 2 Performance Trends JUNS CFG File Edit Mona Tonal Maeda l Kalsaole l o gt Details Back File Current Readings Troubleshoot Help DataMite End of Cable 164 Runs Type 4 Channel DataMite Check Boot Message quick Test Com Port 1 Test Com Port 2 Check Boot Message extended l Channel Settings Check Com Ports Test Com Port 3 Test Com Port 4 Channel U Read Current File Header Test Com Port 5 Test Com Port 6 ao Engine RPM n 2 Frequency 2 Dyno Speed Front Wheel APM 2 Magn Cancel 3 tempi Analog Std Thermocouple Disconnect cable from DataMite Install paper u clip in end of cable as shown Then click on Frequency 4 AR Shock AR Shock 467 679 Hz 0 the button for the Com Port you are using to talk to the DataMite usually 1 or 2 A messa
21. Race Summary These entries are critical if you have set the Preference Type Drag Race Runs Track Length ft i for the DataMite to auto i adjust itself to better match Track Weather Conditions Tii your ET Auto adjust Method of Reading Weather Data E T sec 9 896 potser enhances the accuracy of RE the results meaning that if F Wind Conditions ncor Baro with Rel Hum you look at 660 ftona Wind Speed MPH bs graph the time engine bs Barometer Hg Wind Direction Head Wind RPM etc are more likely to ik Temperature deg F be at exactly 660 ft gt Help Relative Humidity 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 p 27 EleYation feet Dengity Altitude ft Density Altitude ft Density Altitudes can not be input Choose the appropriate Method directly bur are calculated from the other based on your weather station weather inputs above instrument See Section 2 3 Log Book Specs Pro version only can be filled out now or after you download data from the DataMite However it will save you considerable time and produce more reliable records to check the appropriate box on the New Test Screen The keep most non changing inputs is usually the best choice as this keeps things like Engine specs and part descriptions clutch or con
22. s Engine Specs Figure 2 3 discusses some of the commands to enter or change settings at this menu Before Recording Your First Drag race run It is recommend you becoming very familiar with the Drag Race DataMite Analyzer before starting real tests Points to consider include e Be sure your DataMite is installed correctly is recording data properly See Appendix 2 e Review the proper procedure for recording a run 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 12 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 3 Explanation of Sections of Typical Menu General Engine Specs menu from Log Book shown which is only available in the Pro version Names of component specs Click on them for a description in the Help frame at the bottom of this screen Name of component file displayed in this menu Standard text 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 can be useful comments for describing how this engine was built or modified for this particular drag race run Drop down combo box not shown here For some specs like Track or Event in the Log Book you can either type something in the box or click on the
23. 111 112 113 115 119 120 121 122 123 124 125 126 127 128 132 138 147 148 150 151 152 153 154 155 156 157 158 159 160 161 164 165 166 167 168 169 170 172 174 175 176 177 DataMite ii 35 37 38 42 43 44 51 52 53 79 122 154 155 156 157 169 175 DataMite Specs 6 20 35 36 65 66 79 99 121 122 123 124 156 167 169 175 176 177 date 16 66 126 154 155 158 170 172 Default Floppy Disk Drive 21 delete 42 69 102 107 115 Delete 69 70 102 Delete Beginning or End of File 69 70 Demo 2 5 8 19 Density Altitude 16 21 31 89 141 Dew Point 26 27 60 61 Disk 21 172 Display Run Summary 22 Distance 1 39 48 58 62 71 77 78 79 81 86 89 124 128 129 130 132 136 143 145 149 DOS 12 22 102 104 Dry Bulb Temp 60 61 Dry Density Altitude 16 21 31 Dual Cursor 89 93 141 Dyno Specs 6 3 12 104 176 Edit 6 8 16 22 69 70 71 90 94 108 127 166 Edit Out Noise Spikes 71 Elevation 26 27 Email 1 3 Engine Details 30 Engine File 102 Engine RPM 17 21 38 39 40 52 69 70 71 79 86 88 119 129 130 136 145 149 155 158 160 162 165 168 169 Engine Specs 6 9 12 13 48 50 66 104 106 Engine Type 39 168 Engineering Units 41 177 Error 165 errors 39 65 168 Errors 72 181 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies file 2 4
24. 1223 ft Air Temp 60 deg F Wind MPH Actual Results Test Comments Keep this box checked to use comments below for the New Test Note that you can erase and change these comments here Full throttle accelerations in 2nd gear to measure engine torque and HP Stock 1996 4 6L 2 valve Mustang 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 148 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples You give the new data file the name TQ HP1 and save in a new folder name called Power Runs Adding a new Folder is done by clicking on the Add button by the folder name in the New Test screen You also pick the Type of Run as Meas Tq HP from Accel from the list of possible types The program says run has been found which is 10 seconds long which looks correct Making Graphs The program then leaves you at the Main Screen where you see Engine RPM and MPH steadily increasing in the graph This is exactly what the car did for this test However you are probably mre interested in dyno type power curves of torque and HP vs RPM To obtain these click on Graph at the top of the Main Screen Figure 4 37 Main Screen for Power Run A Drag Race DataMite v3 2 Performance Trends TQ HP1 CFG File Edit Graph Report Track Conds LogBook DataMite Vehicle Preferences Help Se
25. 3 Screen Use Frequency Channel 4 Track Len Delete Beginning or End of File Figure 2 45 also shows that you can choose which 1 channel is used to represent the data from the file Usually Engine RPM is the best single channel but you can choose any of the first 4 frequency channels 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 46 Cut Beginning or End of File Screen showing cutting 1 run from a test with 2 runs Click on OK keep this m Dataite Analyzer v2 0 REEDO9 CFG section if you want the OK Keep this section Cancel Erase Outline Help outlined section of the 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 test to be saved outlined Click on Erase Outline to erase the current outline so you can draw the outline again Engine RPM vs Time yam 00 0003 all Engine RPM Click and drag mouse from upper left to lower right to draw a frame around the part of the te
26. 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 Click on Help for more info on how you use this screen to unlock this program 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 old computer up and running Go into the DataMite program click on File then Transfer Program to Another Computer Performance Trends will ask for some numbers from this screen and give you a code which will permanently turn the program Off on this old computer Then give Performance Trends the information for the new computer and they will give you a new unlocking code free C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction 1 3 A Word of Caution To install the DataMite data logger you must install some sensors on your vehicle This is covered in Appendix 2 If you are not familiar with proper safety precautions when working on engines or vehicles HAVE A QUALIFIED MECHANIC OR ENGINE BUILDER HELP YOU Drag Racing and testing can be dangerous Vehicle components DO fail possibly throwing shrapnel and burning fuel in all directions
27. Notes e Jn the case of shock travel where static length is 0 you could decide that 1 inch of compression shorter is a positive number or inch of elongation is positive The choice is yours and you simply must remember which it is when you read your recorded data However if you send data to either Suspension Analyzer or the 4 Link Calculator you must do it so compression going shorter is a positive number e In the case of shock travel data being sent to Suspension Analyzer you calibrate for actual change in length of the shock sensor itself If you send data to the 4 Link Calculator you must calibrate for a certain amount of suspension travel not sensor travel What this means is when you type in for example 1 inch of travel like in the example above it is for 1 inch of vehicle squat which may be only inch of sensor travel e In reference to point 2 above even if you weren t sending data to the 4 Link Calculator you may decide that vehicle squat is a better variable to calibrate to than sensor travel The same is true for most any sensor For example you could calibrate a pressure sensor in units of Inches of Mercury instead of PSI or throttle angle in Percent Closed instead of degrees of opening It just depends on what you enter into the calibration screen as the Engineering Units for the 1 and 2 points 5 Save the Calibration In Figure A5 6 C you will note the calibration shown at the top of RR Shock 467 679
28. Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples There are some important differences between sending data to the Suspension Analyzer and the 4 Link Calculator Say sensor moves only 65 inches and the wheel moves 1 12 inches The 4 Link Calculator can only use one front and one rear shock travel sensor These must be the RF Shock Travel and RR Shock Travel right front and right rear Since it is a simple 2 dimensional layout its assumption is that the left and right both move the same amount The Suspension Analyzer can use RF LF RR LR Shock Travel and Steering inputs The shock sensor data sent to the 4 Link Calculator must be calibrated for vehicle or wheel movement not just shock sensor movement Shock sensors or more accurately called suspension motion sensors have a motion ratio associated with them Motion Ratio is the ratio between the sensor s movement and the actual wheel s movement See Figure 3 36 The 4 Link Calculator only deals with vehicle or wheel movement not sensor movement This means that when you calibrate a shock sensor for use in the 4 Link Program you must move the wheel say 2 0 inches and tell the DataMite program sensor moved 2 0 inches even though the sensor may have moved only say 1 23 inches For the Suspension Analyzer because it calculates the motion ratio for all suspension motion sensors you can calibrate the sensor directly You would move the sensor
29. See Figure 4 25 Figure 4 25 Zooming in on a Portion of the Graph ij DataMite Analyzer v3 2 grand am 1 CFG Back File Format View GraphType AddTest HistoryLog Single Test Help leid ees ee Leo Ded eeke Fe sea grand am 1 1 Engine RPM x 1 Cltch Slip x 10 Distance grand am edge 1 1 Engine RPM x 1 Citch Slip x 10 Distance Click and drag mouse to outline the portion of the graph you want to fill the entire graph screen the portion you want to zoom in on See Figure 4 26 to view the zoomed in graph Time sec Figure 4 26 shows the graph after you have zoomed in on the runs after the 2 3 shift It still shows that the previous converter Edge run has more converter slip just like the other graphs but in more detail But you wonder Maybe that is because the 2 3 shift occurs sooner with the new converter The DataMite program lets you shift one test left or right ahead or back in time to get events to line up between various runs This feature is called Time Aligning and is showed in Figure 4 27 With Time Aligning you can position the 2 runs so the 2 3 shift occurs at exactly the same time This was done by shifting the Grand Am 1 run 320 seconds later in time Even after shifting the graphs so the 2 3 shift occurs at exactly the same point on the graph the Grand Am run with the new converter has less Converter Slip If you click on one of the graph li
30. Tik Len 1220 Quarter Mile es Altitude 1533 MPH 138 58 Run 2 Analysis g Run 1 of Air Temp 74 60 ft 1 449 Desc Edgewater bracket race Report for grand am 1 CFG grand am edge grand am edge i om ere multiple tests Segment Times Segment Times if Segment Times 000 5 000 1 441 0 1 446 2 757 f 2 775 Elapsed Times Elapsed Times if Elapsed Times 250 283 0 250 1 454 1 441 0 1 446 4 158 4 198 2 4 221 6 347 6 407 l 6 436 8 254 8 328 1 8 354 9 888 9 981 i 10 006 Engine RPM Engine RPM if Engine RPM 5054 5783 L 5751 4848 4924 3 4851 5557 5855 3 5821 Vehicle MPH Vehicle MPH if Vehicle MPH 0 0 B 0 Conclusions e Graphs allow you to compare one dyno run to another to check the effect of modifications e Graphs and reports can compare runs on a time basis typical or distance or Engine 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 produce columns of numbers for each test Like graphs the data shown in these reports can be picked by the user e With reports you can specify a range of values for which Average values can be calculated e Comparison reports Pro version only allow for columns of numbers for 2 or more runs to listed side by side for comparison and an difference column can also be included for more convenience 145 C Performance Tren
31. e You have changed the If this does not appear correct Check the DataMite Setup Specs for correct Data Type and Auxiliary DataMite or Dyno Setup RPM sensor descriptions although many times changes Use the Edit command to Cut Beginning or End of Data Then to these specs will not affect erase parts of the data file which may include engine warm up excessive coast down etc the Runs found 70 C Performance Trends Inc 2002 Drag Race 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 Electrical noise especially from the ignition wires Weak or unusual engine ignition signals Dirty pulsing unsteady power to the DataMite Bad or intermittent ground Bad connections in the wiring Excessive vibration in a sensor but this usually looks more like simple noise 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 doing the Test Type of Accel to Meas Tq HP if the noise spikes occur in the Accelerometer or Front Wheel RPM One rather small spike can completely distort the entire torque and HP curve See Troubleshooting Appendix 3 for more information The process of checking for noise spikes happens automatically when Figure 2 49 Graph Specs to Graph you sta
32. moving the cursor to move the right cursor This lets you select a section of the graphed data to analyze Click on the Average button to display the average for the graphs between the 2 cursors Average data and time between cursors displayed here and 10 00 11 0C Time here C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figures 4 25 through 4 29 show how you can use graph features like Time Aligning Zooming Cursor and the Dual Cursors to check various performance characteristics Another useful Graph feature only available with the Pro version is to compare more than just 2 runs To add more runs click on the Add Test command and pick another test run You choose Grand Am Edge 2 a 2nd run with the old converter You would obtain a graph as shown in Figure 4 30 showing all 3 tests Figure 4 30 also shows 2 useful View options Click on View then either Correction Factors to display the Density Altitudes critical to understanding differences in runs or the Test Comments you entered for each test Figure 4 30 Graph Comparing 3 Runs Pro version onl Back File Format View Graph Type AddTest HistoryLog Single Test Help Click on View then BERR EE H Lele lele belo eI t IE Fe Correction Factors v Full View k A 2 or Test Comments Ei Specify Scales axes ip Distance vs Time P gandam 1 1 to obtain screens Engine RPM x 1 Citch Slip x 10 shown below This eee
33. 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 program like Windows Explorer You can also create new folders directories in the DTMDATA folder and these will also be used by the DataMite program 104 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 6 Filter Test Files Pro Version Only The Drag Race 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 107 to be presented with the screen shown in Figure 3 27 Figure 3 27 Filter Files Menu is Filter Files Click on the down arrow button to pick the spec or comment to 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 some specs l List Files If This comment or spec Test Comments m the condition to look for The program treats UPPER and l List Files If And Or This comment or spec TrackConds Dry Density Altitude lo
34. 0 1 05 RR Shock This is the information the program will use to figure out how much shock travel is produced from a certain sensor signal Click on the Keep Specs to keep this calibration and load it into the DataMite Specs Sensor and Calibration column for this channel Notes Other sensors are calibrated much the same as a shock travel sensor For example To calibrate a throttle position sensor With the throttle closed type in 0 and click on the Read button for the Ist 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 Ist 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 the 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 Ist 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 For a 6 shock travel sensor with the static position at about half travel 3 inches it should be at least 65 x 3 or at leas
35. 0 a 0 25 13 00 13 25 38 50 63 75 88 10 0 11 3 125 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 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 69 GTO is the Current Test Figure 4 3 DataMite Specs Menu When finished changing these specs click of File then Save as Master DataMite Specs to save these Data Mite Specs Back File Curen Readings Troubleshoot Click here to switch between Yes and blank Be sure there is a Yes for all channels you are using Type Open Master DataMite Specs ngA Ph 8 Cylinder 4 Stroke Front wheel Front Wheel RPM 2 Magnets Driveshaft Driveshaft RPM 2 Magnets Analog Std Thermocouple Click here to set the cylinders and engine type for accurate Engine RPM data See menu below Click here to set the magnets and sensor source for the other sensors See menu below Click on most anything in the Channel Settina grid to change it For Used you will toggle betweentes_and No For Data Name and Sensor and Calibration you will be presented with new screens to change the current settings Click on Current Readings to show what each channel is recording right now See Figure 4 5 Specs Menu for Other RPMs is Other RPM Specs xi Calib Front Wheel
36. 1 04 13 2002 DragRaceRuns 9 895 139 03 the History Log year 2002 grand am edge 2 cig grand am Edge 2 04 13 2002 Drag Race Runs 9 873 139 38 Ti and puts a Yes year 2002 grand am 3 cfg grand am 3 04 13 2002 Drag Race Runs 9 873 139 38 Ti in the G raph Click in Graph column to select or de select tests for Graphing Slide button right for more History info column Mstart By Susp nzr_ OTMDrag OTM20 DragRac E DateMite G Test Hi f BRBWP A 552PM 142 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Reports Figure 4 32 Report Options Menu Some people prefer or are more used to Basic Report Specs Engine RPM looking at numbers instead of graphs Type Pick Individual Items 7 Driveshaft Reports are for these people where the run Time RPM Distance Report Distanc Exh Temp Driven wheel RPM What to Report Just Run 1 Drive whl or Drvshft RPM Vehicle speed in MPH will be displayed as columns of numbers Click on Back at the top left of the Graph Screen to return to the Main Screen Then Filtering None Acceleration rate in Gs click on Reports and select the Report Options Calcd trans gear ratio m Range of Data Tire slip menu shown in Figure 4 32 ETEA EAP Starting Distance ft fs Tire growth The Reports Options menu is similar to the Ending Distance ft Distance from start in ft Graph Options screen but with a few mo
37. 2002 Edgewater 1st time run permanent and illespie accel gto0201 3 05 11 2002 Edgewater 1st time run can not be illespie accel gto0201 3 05 11 2002 Edgewater 1st time run changed like illasnie the Run in the f 1 column aaraa 1 a1 9 8 7 6 5 4 3 3 2 1 1 1 1 1 1 1 4 These columns are much the same as the History Log but the rows are in a different order and probably contain different tests Any time you open a past test it is added to the top of the History Log The History Log is what is used to pick which tests you want to include in Graph and Report comparisons of several tests 115 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 116 C Performance Trends Inc 2002 Drag Race 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 better 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 117 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 118 C Performance Trends Inc 2002 Drag
38. 5 8 9 12 17 18 21 29 31 36 66 69 70 71 83 88 94 102 103 104 107 108 111 112 113 123 125 132 148 149 172 173 Filter 6 1 17 18 30 52 54 71 77 86 87 105 106 129 130 136 143 145 149 166 Filtering 17 52 54 71 77 86 87 129 130 136 143 145 149 166 Floppy Drive 18 172 Folders 2 4 8 12 18 22 66 83 104 106 107 126 149 170 172 173 Freq hz 41 176 177 Friction Losses 3 50 Fuel 31 155 Gasket Bore Dia 58 Gasket Thickness 57 58 Gauge Settings 52 53 54 Graph 8 12 17 19 21 23 24 43 53 54 55 70 71 77 81 83 85 86 88 89 90 91 92 94 95 96 107 108 109 115 129 130 132 136 137 138 139 140 141 142 143 149 150 151 169 Graph Type 129 130 136 Graphs 6 15 77 85 86 88 90 96 100 129 136 139 140 145 149 Growth tire 47 79 153 169 Help 2 3 5 8 9 16 20 30 44 57 66 124 Histogram 86 88 129 History Log 6 1 18 20 22 75 81 86 88 89 94 107 108 109 115 142 145 horsepower 80 HP 7 1 9 21 22 25 27 35 47 48 50 66 70 71 73 77 80 86 106 126 130 147 148 149 150 151 153 157 169 Humidity 26 60 61 Icon desktop 7 99 170 172 Ignition 162 167 Include Averages 78 Include Text 83 Inductive Pickup 154 155 158 165 167 168 Inertia Dyno 3 80 153 156 174 Inertia engine 153 Install 3 35 70 119 120 132 147 160 1
39. 7 6000 7000 8000 Dyno DataMite Analyzer w DataMite Analyzer v2 0 YAM 1000 CFG x Back File Format View Graph Type AddTest History Log Multiple Tests Help dAl elel ede Dd Pdelxlelruvefsesche Corr Tq Corr HP vs RPM vam100 0003 1 4 0 6000 7000 s000 9000 10000 11000 12000 13000 14000 15000 RPM Chapter 3 Output 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 fairly 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 Filtering Heavy C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Histogram Specs An Engine RPM Histogram is a graph which shows the amount of time the engine spends at different RPMs This information can be useful for your engine
40. Data Back at the pits you start the DataMite program to download the data You select the Get New Data from DataMite option from the Main Menu and download the file as explained in Example 4 1 Since you will want to obtain Corrected torque and HP numbers weather conditions are very important Be sure to enter accurate readings into the Track Conditions menu either before or after downloading data You also enter General Comments about the test For Track Event type in the name of the drag strip or pick from the list if you have already typed in this strip s name The same can be done for Run Description Figure 4 36 New Test Screen Filled Out for First Power Run w Starting a New Test Start New Test Cancel don t start new test Current Readings Help File Name for Track Event Testing at Milan v Folder Add Type of Test Name for New Test Run Run Description New Test Stock Condition Power Runs Meas Tq HP from Pick Which Specs to Keep based on current file ff1 CFG Dataklite See Specs Type 4 Channel DataMite Vehicle See Specs Vehicle File 96 Mustang WYeh wt 3650 Ibs Final Drive Ratio 3 27 Rear Tire Radius 12 5 Front Tire Radius 12 5 Trans Manual Log Book 2 a keep most See Specs Keep All Inputs even those likely to change with each run non changing Lane Tree Win MyR T Dialln Oppnt R T Delay Box inputs Track Conds See Specs pra ar 1320 ft Dnsty Altitude
41. DataMite modify Uncheck Test Comments to start which should match with blank comments for the New Test your current DataMite setup This will be the Click on these buttons to see the current same no matter what Engine or Test Conditions Setup previous test you are Bor starting from A summary of the current settings is given here Ifthe current test is not Click here to Check or Uncheck these options Checking means you a good pattern for this want to keep these specs for the new test Once the new test is started new test you can abort you can then make modifications to these specs if you want C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions ee nn nn al 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 want to use for your new test All Categories not checked will be blanked out Blank specs may cause problems with more detailed a
42. Edit Yehicle 5 GTO Bun Click on File in the Vehicle menu to Open a set of saved Yeh New This allows you to build libraries of Vehicles for easily Tot Open Example Vehicle creating new tests in the future Open Saved Vehicle New blanks out the current specs and comments Fini sve Vehicle f Open Example opens a library of example specs Boro ae provided by Performance Trends Open Saved opens a library of specs you have saved windows Printer Setup Save saves the current specs to the same name as Print these specs are currently called Print Blank Worksheet Save As saves the current specs to a new name that you will enter Current Engine File Name 151 Runs Pun a 3 3 2 1 1 1 1 1 Aerodynamics Save a Test File Before you discuss 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 ch
43. Figure A3 4 Examples of Engine RPM Drop Out from Inductive Pickup Engine RPM will drop to about 1 2 or 1 3 of what it should be in signal to inductive pickup wire is weak The fix is to wrap the inductive pickup wire around the spark plug wire 1 to 2 turns for a stronger signal Examples of drop outs shown here happen to be on the decel after throttle closes and spark voltage drops but it can occur on the accel also causing more severe data calculation problems te DataMite Analyzer v2 0 DDDD12 CFG x te DataMite Analyzer v2 0 SWO02 CFG x Back File Format View Graph Type AddTest HistoryLog Multiple Tests Help Back File FormatNyiew Graph Type AddTest HistoryLog Multiple Tests Help el lee ed Le Poe bod eT aT evesa elle Nee Teo Leo TT BelolzTelravenfsescas Engine RPM D dddd12 all Engine RPNND sw002_all 7000 Engine RPM 6000 Engine RPM i i Dyno RPM i Dyno RPM 6000 5000 4000 3000 F 2000 15 0 Time sec A A 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 RPM Data Looks OK but Too High or Too Low 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 43 The
44. 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 Figure 4 31 Pro Version s History Log for Graphing Multiple Runs Click here or here to show History Log shown below wm DataMite Analyzer v3 2 grand 1 UCFG Back File Format Mies taph Type AddTest History Log Single Test Help Click here to Sig ele Eb EI Pde La ravenfee sce pick which run endins a RPM Sken Slip Distance vs Timp grand am 1 1 from each test you will graph In this case it is run 1 since each test only has 1 run The run also shows up in the legend im Test History Graph Tests Marked Yes Graph al Test Only Clear erase History PyAt Help Test File and Path Std Graph Title Pula ius Save Run t Test Date Type of un __ ET MPH The command examples grand am 1 cfg or Jasa am1 13 19 2000 ven Race Runs 9 872 138 58 Add Te st gillespie accel french 1 cfg ench 11 17 2001 Custom no i examples grand am edge 2 cig 04 13 2002 Drag Race Runs 9 873 139 38 Ti adds the name examples grand am edge 1 cfg grand am Edge 1 04 13 2002 Drag Race Runs 9 896 139 03 Ti of the test to examples grand am edge 1 cfg grand am edge 1 04 13 2002 Drag Race Runs 9 896 139 03 Ti year 2002 grand am edge 1 cfg grand am edge
45. If you set User Specified Max to 70 and User Specified Min to 0 each gauge increment will be 11 67 which is much more confusing User Specified Min If you set Range to User Specified this spec will be enabled Enter the lowest number you want to see on then gauge here The gauge dial is divided into 6 sections It is less confusing if the difference between the User Specified Max and User Specified Min is evenly divisible by 6 For example if you set User Specified Max to 60 and User Specified Min to will be 11 67 which is much more confusing Bar Gauge Settings DataMite II Only Click on Options then Bar Gauge Settings to be presented with a screen similar to the screen of Figure 2 32 Here you set Dial Gauge 1 Channel 0 6000 User Specified Max User Specified Min Dial Gauge 2 Channel 4 Chnl 4 User Specified x User Specified Max User Specified Min Note Pick one of the DataMite channels to be displayed 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 Keep Options Help Cancel Print 0 each gauge increment will be 10 If you set User Specified Max to 70 and User Specified Min to 0 each gauge increment what channels are displayed on the bar gauges and what the range of the bar gauge will be Exhaust Temp Scale DataMite I Only Click on
46. Just like with re graphs select grand am 1 08 19 2000 Drag Race Runs 9 872 138 58 Ti which tests to gillespie accel french 1 cfg french 1 11 17 2001 Custom no a ii 2 d F th examples grand am edge 2 cfg 04 13 2002 Drag Race Runs 9 873 139 38 Ti include n e examples grand am edge 1 cfg Gada am Edge 1 04 13 2002 Drag Race Runs 9 896 139 03 Ti comparison report examples grand am edge 1 cfg grand am edge 1 04 13 2002 Drag Race Runs 9 896 139 03 year 2002 grand am edge 1 cfg grand am edge 1 04 13 2002 Drag Race Runs 9 896 139 03 Ti by putti ng a Yes year 2002 grand am edge 2 cfg grand am Edge 2 04 13 2002 Drag Race Runs 9 873 139 38 Ti in the Report year 2002 grand am 3 cfg grand am 3 04 13 2002 Drag Race Runs 9 873 139 38 col umn Click in Report column to select or de select tests for Reporting Slide button right for more History info Results for current test in first column A Drag Race DataMite v3 2 Perfosmance Trends grand am 1 CFG 5 gt Back Print Report Types File YistoyyLog Single Test Multiple Tests Help F1 Results for tests 7 e ype Da RaceFuns G02 pm 08 19 2000 ET 9872 FAN marked Yes in omments ER A 1 of 1 BO ft 1 gt the Report column of the History Log shown 6124 E i here with the ay 5 Difference for gt 13 7 each in the 6255 adjacent column 6283 6319 6328 6389 6421 6448 6479 6519 6579 6537 6627 grand am 1 CFG 6448 Accel Gs Accel Gs
47. 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 graphs Display in Summary This spec lets you pick to display either the standard Density Altitude or Dry Density Altitude which is corrected for humidity on certain screens It is recommended to use Dry Density Altitude however many racers are used to the less accurate Density Altitude Filing System Tab Default Floppy Disk Drive Choose the letter of the floppy disk drive on your computer usually A This is the disk drive which will be first opened when using the Save to Floppy Disk or Open from Floppy Disk File commands at the Main Screen 21 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Test Folder Name in Program The Drag Race DataMite Analyzer saves tests under different folders directories under the main folder DTMDATA Some users may prefer to have the Folder be called Track or Vehicle depending how they 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 Note In the DOS version 1 x these folders were called tracks If you want to match the wording used in the DOS version 2 1 change this word to Track Tests Kept i
48. Optional power switch to cut power to the DataMite 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 DataMite and the DataMite II systems are designed to record engine RPM on channel 1 Figure A2 7 and A2 8 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 with no direct electrical connection to an ignition module or coil For the standard 4 channel DataMite channels 2 3 and 4 are for recording RPMs or can record analog signals like temperatures and pressures with the addition of an optional Analog Converter 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 Ma All ofthese channels except the Preset Analog Channels are accessed through the 9 pin Amp connectors at the front ofthe main box 156 C Performance Trends Inc 2002 Drag Race DataMite Analyzer App
49. 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 53 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions f Figure 2 33 Changing the Color Warnings Color 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 chet operator to not go above 7000 RPM on the engine RPM or if oil pressure 3 Chni 3 not being used should fall below 20 PSI Warning Color Specs Use Color Warnings Yes v Caution If Greater Than x This Limit treater an Di Analog Filtering ann em TE is Limit E Click on Options then Analog Filtering to select how much filtering ool ST smoothing should be done to just the analog readings RPM readings are not ae filtered Use these specs to have program change colors yellow caution red warn of data displayed on Current Readings display You can change settings for several channe
50. RPM 2 Magnets RPH Sensor Specs Pick Front Wheel for channel 2 and Driveshaft RPM for channel 3 You would open this menu twice once for each channel you want to change Sensor Front Wheel RPM Engine RPM Specs Menu Magnets 2 z For V 8 8 cylinder 4 stroke Front Wheel Analog Sensor Specs For Channel 4 pick Analog Converter and then Std Thermocouple as the Type is Engine RPM Specs xi Calib 8 Cylinder 4 Stroke Engine Specs Cylinders a M 4 Stroke Engine Type 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 every revolution like a 2 stroke so call a Briggs a 1 Cyl 2 Stroke Keep Calib Help Cancel Print 1st Value Engineering Units 1st Value freq hz Read 2nd Value Engineering Units 2nd Value freq hz Read Oo 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 Keep Specs Help Cancel Print Specify 2 magnet since that is what you installed on the Front Wheel and the Driveshaft Be sure to get these magnets as evenly spaced as possible Click on Keep Specs to keep and return to DataMite
51. Should the program keep the correction determined by the DataMite program ia Drag Racing Log Book Back File More Engine More Suspension Converter User Defined Help Race Details Tires amp Suspension Track amp Event n LR PSI RR PSI Run R am bracket race 3 correction to Match Engi Time Slip data 60 ft Lane Right 7 Win Time Trial apane ET and MPH in th Traction Average gt Track Temp u Th Stop On _More an i Li e son Paoa e S AL oan enn Tree Fu s00 v Party Coud 7 Vehicle ResponsgTime the Update button in Opponent Method Ru the Log Book screen i mei Din Interval and Segment Times 7 J DD nei En a n om A Iw m u Converter User Defined Actual Seg e710 J192 J 899 _ 1 622 See Records See Records DataMite 2704 2189 1 807 ff 634 You can update the Help Corr Factor fi 003 Cle On Brks No Enter the name of the track and a description of the event Click on the down arrow button to pick from 1 8 Mi MPH 17 4 Mi MPH 138 58 Track amp Events you have entered in the past p xx Corr ET MPH HP C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 15 Main Screen After Downloading Test Data Analyzi ng Data A Drag Race DataMite v3 2 Performance Trends Grand Am 1 CFG File Edit Graph Report Track Conds LogBook DataMite Vehicl
52. Then click on the Search Button c 133573 6 Occurances Found of 4LINK EXE c VBS8 projects64 4 link M asterL4 4link e c YVBS8 projects644 link 4link exe c VB5 projects 4 link MasterL4 4link exe c VB5 projects 4 link 4link exe c VB4 Projects 4 link MasterL4 4link exe c WVB4 Projects 4 link 4link exe Search Cancel Halt 113 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 114 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 3 9 Run Log Pro Version Only The Run Log is similar to the History Log described in Section 3 7 except e The Run Log is a chronological list of the tests in the order you have downloaded them from your DataMite e The History Log is a chronological list of the tests in the order you have opened them for graphing making reports etc These are intended to be tests you are most recently interested in even if you actually downloaded them several years ago The only way to add a test to the top of this list is to download a new test from your DataMite You can not change the order of the tests However you can delete tests from the Run Log by clicking on a test to highlight it or clicking and dragging the mouse down to highlight several tests then right clicking on this these highlighted tests See Figure 3 41 You can then select to delete these tests from the Run Log or open this test If more than
53. 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 as the Sensor then the Multiplier spec becomes enabled 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 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 You can change the name here in this screen or by clicking on the name in the Channel Settings grid and entering a new name there 40 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 22 Sensor and Calibration Screen Other RPM Specs Ed Other RPM Channels Calib Other RPM 1 Magnet x 2 2 RPH Sensor Specs Magnets j x Analog Sensor Specs 1 st Value Engineering Units 1st Value freq hz Read C 2nd Yalue Engineering Units je 2nd Yalue freq hz Read E O Note Pick the lo
54. Word of Caution and scattered throughout this manual See Assumptions in the Index e There is no slip inside the transmission For automatic transmissions there may be slip in the clutches and bands This slip is combined with Converter Slip and reported as Converter Slip in e Tire growth is reported as the decrease in rear wheel RPM compared to front wheel RPM correcting for differences in Tire Radius However there is also tire slip occurring with growth which the program can not separate Therefore your actual tire growth will likely be HIGHER than what is calculated by the program as Tire Growth in e Torque and HP are estimated based on the vehicle s acceleration rate MPH aerodynamics etc Obviously any error in Vehicle Specs will cause an error in calculating torque and HP However the program makes additional assumptions for specs which are difficult for the user to estimate like driveline efficiency engine inertia transmission inertia wheel amp tire inertia etc Therefore the absolute accuracy of torque and HP may be in error due to these assumptions See Example 4 3 154 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 importan
55. a aa Sal calculated from these inputs click E O O E on the Use Calc Value button Intake amp Exhaust Otherwise click on Cancel to return to the Engine Specs menu with no change to Compression Ratio Section 2 8 Calculation Clc button calculates the value of Menus explains all these this spec based on other inputs calculations C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction nn il Once you feel comfortable changing specifications in the various menus and making various graphs and reports read Section 3 5 of this manual called Data Libraries to learn how to save tests or recall tests which have been previously saved Then 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 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Chapter 2 Definitions 2 0 Basic Program Operation Whenever you start the Drag Race 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 Test File Menu Commands of File Graph etc Click on th These give you all the options to operate t b re the program and change test data AVSLO SWIC between the A Drag Race DataMite v3 2 Performance Trends 69 GTO CFG different runs of a File Edit Graph R
56. a call for an explanation Remember 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 Drag Race DataMite Analyzer program will ask for vehicle specs and measurements and engine specs The Drag Race DataMite Analyzer program is NOT checking for safe limits of the vehicle or engine design You must have your vehicle design checked by a qualified engineer to determine its safe operating range C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction 1 4 Getting Started Installation Figure 1 1a Installation Wizard A Performance Trends Installation Wizard You must install the Drag Race 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 door 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 Drag Race DataMite you just purchased Select click on the button for Drag Race 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 runn
57. and mark the 2 bolt holes Drill holes as required When bolting the module in place DO NOT overtighten Tighten just until the rubber grommet starts to compress Use a flat washer against the rubber grommet and a lock washer against the nut In extreme vibrating conditions you may have to double nut to avoid loosening of the mounting bolts The same procedure is used for the DataMite II except 4 screws are used Note the installation instructions for the DataMite II to obtain the correct orientation for the accelerometers to read correctly The standard mount for the 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 The cable from the control panel and the DataMite module can NOT be lengthened However the panel can be removed from its enclosure and mounted directly in a cutout in some type of panel This is best done with screws can use those provided with the plastic enclosure or pop rivets 5 Determine Cable Routing It is recommended you do not lengthen or shorten the DataMite harness unless you solder and shrink tube all connecti
58. as Master DataMite Specs at the top of the DataMite screen 9 Do you want the program to see if the configuration in the DataMite Il Box matches the oe program s configuration Com Port 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 4 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 DataMite II Rate Is the sampling rate for all DataMite II channels The higher the number the more data recorded This allow for less recording time but will possibly make the data slightly more accurate and
59. 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 28 Print List of All Files Fitting These Limits The 3 command buttons will do the pest Folder ET AMEN following 2478d41 cfg caheely Bt2478d4 cfg caheely JRDRGST3 CFG caheely 7 772 81 43 itti JRDRGST4 CFG heel 7 772 81 43 Show Files Only Fitting These JRDRGSTS CFG cahealy 7 772 81 43 igi french 1 CFG Gillespie Accel Conditions will return you to the SITE Gillespie Accel 11 493 114 63 1 e6sp1le acce Open Test File screen Only files fitting Ve025109 cg Gillespie Accel ee a will na a Click and Drag Mouse to highlight a File Name is N er ee A then click on Open button below to open it can click on various folders or whatever name you have given to folders in the Preferences menu at the Main Screen to Cancel Open This Highlighted File 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
60. 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 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 C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction 1 5 Example to Get You Going To start the Drag Race DataMite Analyzer click on Start then Programs then Performance Trends and then Drag Race DataMite Analyzer or click on the Drag Race DataMite icon on your desktop During startup ofthe program you will be given some introductory tips After these brief introduction screens and questions you will be left at the Main Screen shown below Notice that there is already a drag race run loaded and displayed Th
61. 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 37 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions DataMite Il Recording Segments Is the number of memory segments you want for the DataMite II s memory At the time of publishing this manual the DataMite II s memory works differently than the standard 4 channel DataMite s memory The box operation will be updated in the future through the DataMite software to work more like the smaller more flexible standard DataMite For now the memory works as follows The current DataMite II has memory which can be broken up into from 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 recording stops no matter where you are on the track The next time you press the red button to start recording the DataMite II automatically records in the next segment overwriting any data which was in that segment If there was good data in that segment 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 When you go to get da
62. 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 29 History Log and Options Click on Test Title to Open that Test File Click on File then Open from History Log Click in the Save A Prag Race DataMite 3 2 Performance Trends BROGED2 CFG column to enter a Elf Edit Graph Report Track Conds LogBook DataMite Vehicle Preferences elp Sen Yes or erase a Dei Yes All tests Race amp Vehicle Conditions move to the Omm 5 32 04 13 2002 Help Click f the Tab i ar y aeoea oade nn bottom of the 2nd time run 1320 Quarter Mile History Log and e eee A eventually fall off the list as you work with new tests However Tests marked Yes do not fall off the list ia Test History _ oy x Close History Log Cleaf erase History Print Help Cl ick a nd move TestFileandPah Z Save Ry TestDate Type ofRun ET MPH Win _
63. 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 computer picks the scale to Back File Format View Graph Type ae Test History Log singled N Hee ff show all the graph in good ele lellei Pefol ei ti ruven sescal detail yam100 0003 1 Corr Tq You can use the mouse to am 950 1 Pal outline an area to be zoomed 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 will fill the whole graph This feature is disabled if the cursor is turned on Also start the upper left corner well away from a graph line or the program may turn on the cursor instead 6000 8000 10000 12000 14000 16000 RPM Figure 3 18 Menu to Specify Graph Axes Scales 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 The
64. on this screen 44 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 45 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 46 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 6 Vehicle Specs The specs shown in Figure 2 26 describe the vehicle which produced the data These specs are used to do many of the calculations Nearly all data calculated from wheel engine or driveshaft RPM inputs depend on these specs being correct These data include MPH Clutch Slip Tq Accel Gs Converter Slip HP Feet Tire Slip Calc Gear Ratio Gear Tire Growth Calculated from accelerometer data or front wheel RPM whichever is available Therefore if the raw RPM data looks correct but one of these calculated outputs do not double check these Vehicle Specs Figure 2 26 Vehicle Specs Menu Click on File then e New to blank out this screen Open Example to pick an example vehicle provided with the program Save or Save As to save these vehicle specs to a name of your choosing Print or Windows Printer Setup to print is Vehicle Specs BROGIE GTO Back Ffle Help Vehicle Specs Transmission Type User Defined 2 Speed x Clutch Converter Torque Converter m Efficiency 35 Good 2 spd LtDty Auto x Total Weight with Driver cid Final Drive Ratio Rear Ti
65. 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 m close throttle position could occur at 3 21 volts Figure A5 2 Illustration of a Analog Sensor Calibration and the full open throttle could occur at 1 76 volts Just about any 2 combinations of Absorber Dyno Load conditions could happen If you don t tell the 2nd Value computer the correct combination the data may 4 4 volts 28 Ibs be off just a 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 in Section 2 5 In the standard 4 channel DataMite analog sensor signals must be conditioned by an __ 1st Value Analog Converter which converts the analog 1 0 volts 0 lbs signal into a frequency similar to an RPM signal However as far as you the user are concerned it functions just like an Analog Sensor shown in Figure A5 1 175 C Performance Trends Inc 2002 Drag Race DataMite A
66. plugged into the correct spot in the harness Disconnect sensors one at a time to ensure you get a response on the Current 1 EngRPM 1Cylinder 2Stroke 3 18401 Other RPM 1 Magnet Readings screen for the appropriate channel 2 Dyno Wheel RPM 1 Magnet 4 jet Being Used Install Optical Isolation Box for this screen to avoid possible computer damage Note It is recommended you use screen only if you have protected your computer s serial port with Performance Trends optical isolation system Although unlikely it is possible for stray high voltage ignitions signals to pass back through the DataMite and destroy your computer s serial port Click on Close back to close the Current Readings screen and return to the DataMite screen 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 69 GTO 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 Recording a Drag Race Run 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 specs to correctly match your DataMit These initial settings and checks are only done for your first drag race run Now you can actually start
67. 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 track These barometers measure the actual air pressure at the track 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 For example at 600 ft if the a barometer reported by at Radio weather report Corrected Barometer is 30 2 inches you Observed Barometer on a weather station should be about 30 2 6 or 29 6 inches 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 Relativ
68. say 2 0 inches and tell the DataMite program the sensor motion was 2 0 inches See Figure 3 37 w Other RPM Specs xi Calib RF Shock 68 3 73 Hz 0 2 RF RPM Sensor Specs Analog Converter z Sensor Type RF Shock Travel Sensor Data Name Analog Sensor Specs Ist Value engineering units Ist Value freq hz Read 2nd Value engineering units 2 2nd Value freq hz Read 3 73 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 IST When the DataMite sends data to either ofthese 2 program data is sent with a vehicle filename This name is ofeither a 4 Link Calculator file or Suspension Figure 3 38 Sent DataMite Data in Suspension Analyzer A Suspension Analyzer v1 1 Performance Trends WCSample File Edit Graphs Reports Vehicle Specs Adjust Optimize Zoom Ani Front View Side View Top View No View PX Dynamic Ste Preferences Help Return to DataMite Dive Rol 1 65 Steel This is a view from the rear of car right side of screen is actually right side of car Gain based on 1 Dive Continuous Single Step Back Faster Slower Time 55007 Front Suspension Toe In Gain 03 Camber Gain 1 51 Turn Radius 63 ft Lt Turn Toe In 23 Roll Center Ht 2 74 Caster Gain 39 Toe In Gain 01 Camber Gain 1 27 Suspension Data Roll Cente
69. screen Click on DataMite at the top of the Main Screen to open the DataMite Specs menu shown in Figure 4 3 There will already be specs in this menu which are the DataMite settings used when test 69 GTO was run You will change these specs to match your DataMite Put a Yes in each row you are using the first 4 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 descriptive or simply leave them at their default names of Eng RPM Chnl 2 etc The Sensor and Calibration descriptions are very important Review what is outlined in Figure 4 3 and in Section 2 5 When you are finished click on File then Save as Master DataMite Specs to save these changes 121 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 5 Current Readings Screen to Read Channels Now that you have saved these settings as the a aa Master DataMite specs you can check these Giese Sek CO RRGRen aks readings by clicking on the Current Readings menu option This will bring up a screen like that shown in Figure 4 5 If you have the DataMite II this screen will be larger to cover all channels From here you can start the engine jack the car up and spin the tires or driveshaft watch temperatures and make sure everything is reading correctly If they are not reading correctly be sure you have the correct sensor
70. signal the DataMite can use NOTE THE STANDARD DATAMITE IS NOT DESIGNED TO WORK WITH MAGNETO OR UNEVEN FIRING IGNITION SYSTEMS It is designed to work on magnetos on small engines like Briggs amp Stratton and 2 stroke kart engine For other RPM signals using wheel speed sensors the problem may be e Unevenly spaced magnets will cause noisy or jumpy data not noise spikes See Appendix 2 about magnet spacing e 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 wheel sensors away from the brakes or possibly the exhaust e You may be specifying the wrong magnets in the DataMite Specs menu e A magnet may have fallen off e There may be metal debris or shavings on the magnets u be false triggering due to vibration See Figure A3 3 Mounting Suggestion to Avoid Vibration Problems Eliminate Electrical Noise Sources Bracket should Flat Washer be as short as There can be several sources of electrical noise which can look like practical and additional spark firings to the DataMite The major source is from the stiff fairly thick material spark plug wires Solid core wires can produce noise to the DataMite about 12 just as they do to an AM radio Switch to resistor or suppresser spark gauge or plugs and plug wires Also check that the spark plug gap is proper and thicker the spark is not arcing somewhe
71. sjauBew p 40 Z peg payeouqey uo payUNOW JOsUas jaaym esy jauuey gt yp 2008 0 J0 28UUOD Ud 9 Buipeojumop 0 iamod sjo 4u09 yams 4emog jeuondo eyep Bunga 04 pep ao d yeu yams woy aq you ysnw Ing emod Peyaims woy aq ueg xog JIWA JMOd JOA ZT Pay 0 soj punou SWI BJO 0 uaysey Ajeindes puno s yoelg s jdwex 335 LY S Be 109 jo apis eaneBbeu yoz GSW jeu is uoniuby Mojo jqe ellas y m zod WO9 ayndwuos 0 ppauuon O Z6 ELr SrZ spual SOULWOLOd JBUULYD Up 104 JOJDBUUOD YIM ssauleH stewed psepueys 160 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 7 Check Out Signals Put the DataMite into Setup Mode by pressing the Clear Memory button while holding the Record button down See Figure A2 3 You should see the Record LED start to flash once every second or so This indicates it is in Setup Mode and is checking channel since it is flashing once When you start the engine you should see the Clear Memory LED start to flash The flash rate should increase as engine RPM is increased If not check the ignition lead for proper installation Note that when checking Engine RPM the LED will not flash for every engine firing because this would be so fast the LED would appear to be constantly on The LED changes state for approximately every 10 engine firings to slow the flash rate down Press the Record button once and t
72. 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 Figure 2 37 Typical Calculation Menu calculated value is within expected limits it will be loaded into the original menu If you click on Click on Clc button to bring up Calculation Menu XS DataMit w Engine Specs FORD 5 0L Cancel you will be returned to the F a cel you will be returned tothe imaa original menu with t 1e original value Engine Cusfomer amp Comments Cais Compression Hato unchanged Ifyou click on Help you l Engine Customer Stock 5 en will be given a general explanation of BBFoU4S Total Chamber CCs i i Short Block calculation menus and a page in ci RN this section for more info about the WPS 4 Stroke E Chamber Cis mn Hood 1 Cylinders Q particular menu you are using Rod Length CR Piston Dome CCs i z Gasket Thickness in The input values or calculated values le ies Gote Lees oe a Tran ref aske ore Via in in any calculation menu have NO Block Stock Cast Iron affect on calculated performance pj Piston amp Rods Deck Height Clearance in unless you load the Calculated value Crank Wt amp Descr 35 bs Notes i 101
73. the lt Ctrl gt key while clicking on a line to move the Right cursor 93 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Changing titles and legend names Pro version only Many times you may want to customize a graph by displaying and printing labels of your choice Click on Format and then Edit Titles Legend to bring up the menu shown in Figure 3 16 which will allow you to do this Note that the names you enter here are for a particular position in the graph legend not the particular file The name you enter for Grp 1 group 1 or the first file in the legend will stay with first group in the legend even if it is now for a different file For this reason it is often better to enter a descriptive Graph Name in the History Log that will stay with the particular file and not use this method of changing names This feature is very useful for printing a particular graph or one time modifications Figure 3 16 Menu to Edit Title and Legend This is the list of Standard names the program uses unless you click on the Use New Titles 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 This is the list of New n
74. the tests saved different sections click on the Folder i SR under that Folder Files Not Filtered all files listed name from the list shown at the lower Name right of Figure 2 2 The list of tests will ia Filter find Advanced Delete Add then be updated for that Folder To pick Canal Help Delete Right click in list above for mwe Folder Options a test simply click on it from the list of tests then click on the Open button For those familiar with computers Folders are actually subdirectories or folders in the DTMDATA folder The Name Folder can be changed to something else like Track used in the DOS vl x in the Preferences menu Folders Click here to pick a different category or group of tests Folder from which to display a list of Test Files Note these commands and right click commands for editing Folders Notice in Figure 2 1 that a current test name is listed at the top in square brackets This is the file 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 report 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
75. the track 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 report 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 Notes on Weather Readings and Weather Stations Many drag race runers will use 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 85 850 100 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
76. 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 IT box so it also has the new configuration File Open Master DataMite Specs Click on File then Open Master DataMite 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 43 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Save As Master DataMite Specs Click on File then Save As Master DataMite Specs and the current settings is this screen will be copied to the Master DataMite specs Do this only if all the current settings in this screen DO match
77. 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 Performance Trends sells electronic weather stations to help eliminate any confusion save time and improve accuracy 27 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Race Summary Track Length ft Click on the down arrow button to select the length of the track or type in most any number of feet for the track In the Pro version Quarter and Eighth mile choices allow for the DataMite program to correct the recorded data based on the ET and 60 ft times you have entered here Finish MPH Enter the time slips finish MPH This entry is for information only No entry is required E T sec Enter the time slip s finish E T elapsed time In the Pro version this number is also loaded in the appropriate spot in the Log Book Ifyou have selected in Preferences to have the prog
78. to your computer Click on File Pick Which Specs to Regp based on current file GRAND AM CFG DataMite PRR ronan k ed upper left corner of the Main Screen then New get data from DataMite to bring up the New Test screen which will likely show a Tip message See Figure 4 7 As the Tip in Figure 4 7 says it is usually easiest to start with a Drag race run file that is as close as possible to the drag race run you just ran usually the previous run This prevents us from having to make major changes to test information like the Vehicle Specs Aster MoTHDreMANLAOOC Hy DTM20 Microsoft Vis A Drag Race Dates t3 StaringaNewTest_ REGEA 231P Test Conds Log Book entries etc However assuming you have not tested an engine like this one before you can start this test with whatever the Current Test is Vehicle Any Specs which yqu Pick to Keep for this New Test will 45 Rea Tire Radius 16 5 be based on the curf amp gt test Log Book Keep most GRAND AM CFG lach run changi 99 Oppnt R T Del i ES ts 9 if a different test would more closely wra t Click on reducing the number of changes you will have to make 7 H Track Conds in specs click on Cancel at the top Then click on ind 4MPH Actual Resuke File then File and Open at the Main Screen to select a better Test Comme test on which to base this New Test ote that you can L New get Don t show this again eps 5 data from z
79. weather conditions and this is the jetting you want the program to match for different weather conditions Jet Suggestions are only possible if e You enter the correct weather conditions for the current run and some Comparison run e You have selected a Comparison or Baseline run in this case Sequence 119 in the Run Log The Run Log is the list of runs down the left side of the Main Screen You can click on the details button at the top of this list to see more details about each run One of the columns is called Sequence Number and is the programs assignment of a sequential number for each run downloaded from the DataMite This number should be unique for each run The file name for this Sequence is also displayed in the File box See Section 3 9 Run Log page 113 for information of the Sequence e The Fuel System settings type of carb for example for the current run and the Baseline run are the same Figure 2 11 shows that Comparison run 119 had 84 jets Holley Jet with a Dry Density Altitude of 2826 ft For the current run you kept the 84 jets when you ran in a Dry Density Altitude of 3875 ft but the program would have recommended 83 jets instead Figure 2 12 Mechanical Checks in Engine Details Back ok File Help Leakdown was Fuel Metering Mechanical Checks her Checks RPMS amp Revs not checked so it was left blank Mechanical Checks Cyl Cmprssn Leak Exhaust Vly Las
80. with Printed Graph Comments Click here to change the Test Comments comments which appear on the Main Screen Graph Title TEN Changes to Data Set 1 s comments the current test are Test Summary new converter 0737 2 new permanent Changes to other Test Summaries are created by the starter new flexplate tires 7 psi Data Set s comments are program and include valve and port Throttle Stop ON temporary sizes test times and dates etc They can not be changed by the user 2 Graph Data Sets comments available for each Data Set This one comment is printed directly under the graph Include on Graph Titles to Use Graph Comment 1 comme Test Summaries Comparison of the Grand Am with the Toil Comments Std Titles 59 GTO The Titles to Use options give Alt Titles Graph Comment SER you a way to reach the Menu in Figure 3 26 to change the Titles Help and Legends of the graph Check or uncheck these 3 options to determine what gets printed and what options are enabled and disabled on this screen Bottom Section of Printed Graph i Graph 75 i i Comment Test Summary and Comments for GrandAm 1 Test Type Drag Race Runs 6 02 pm 08 19 2000 E T 9 872 eit Summaries Trk Len 1320 Quarter Mile Dnsty Altitude 1533 MPH 138 58 Run 2 Run 1 of 1 Air Temp 74 60 ft 1 449 Desc Edgewater bracket race new converter 073 2 new starter new flexplate tires 7 psi Throttle Stop ON
81. 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 engineering units in the calibration screen Then click on the Read button for Ist Value Freq hz and the program will read the signal from the sensor with 0 shock travel It will store this reading as the 1st Value Freq hz where you can see it 4 Obtain an Upscale Reading Figure A5 6 Calibration Menu for Torque Sensor Using Analog Converter A Choose Analog Converter as B Type in 0 for the 1st Value and C Type in upscale travel for the Sensor and Dyno Tq as Sensor click on Read button for program to 2nd Value like 1 compression and Type Type in some Data Name read sensor at 0 shock travel static click on Read button for program to like RR Shock shock length read sensor at the upscale torque RPH Sensor Specs RPM Sensor Specs RPM Sensor Specs Sensor Analog Converter Sensor Analog Converter Sensor Analog Converter Sensor Type RR Shock Travel x Sensor Type RR Shock Trave x Sensor Type RR Shock Trave x Analog Sensor Specs Analog Sensor Specs Analog Sensor Specs 1st Value engineering units ha 1st Value engineering units o 1st Value engineering units po Tst Value freq hz Read o 1st Value freq hz Tst
82. you have entered in the Test Conditions and or Log Book screen This option let you also turn off this feature If you use this feature you must be diligent about always entering accurate ETs and 60 ft times Warn if Changing Run Numbers Pro Version Only The DataMite program will generate Run Numbers based on the order you have downloaded them from DataMite and the current Run Number If you change the Run Number in the Log Book screen the program will warn that you may produce Run Numbers which are not in order and lead to confusion in the exact order of runs in the future If this warning becomes bothersome you can turn it off with this preference 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 Graphing Printing Program Title Comments Enter most any text here for the First and 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 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
83. 0 0 Click on View then spear Timing Shift Size to 560 0 his increase or 480 0 decrease the amount of time 400 0 shift which occurs 320 0 for each click on the Time Align 240 0 160 0 2 3 Shifts for both tests now occur at same time Sale 10 00 11 00 Time sec 139 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 28 Using Cursor to Check Values on Graphs ij DataMite Analyzer v3 2 grand am 1 CFG ix Back File Format View GraphType AddTest HistoryLog Single Test Help Values at the Baia ee sorlie are Engine RPM Clitch Slip Distance vs Time grand ami 1 Legend Engine RPM 5453 Cltch Slip 47 905 Distance 239 5 Click on a graph pgrand amedge 1 1 line to bring up the Engine RPM 5777 Citch Slip 57 094 cursor line The Distance 272 2 values of the graphs at this line are displayed in the legend which shows the Converter Slip is higher with the new converter even if the shifts had occurred at exactly the same time rsor Time 10 00 14 00 Time Curso S Figure 4 29 Analyze a Section of a Graph with 2 Cursors Click on Dual Cursor button to w DataMite Analyzer v3 2 grand am 1 CFG di 2 Back File Format View Graph Type pd Test HistoryLog Single Test Help isplay 2 Cursors SETS NEME TE ISTETET es EEE Engine RPM Citch Slip Distance vs Time moves like the single i cursor Hold down the lt Ctrl gt key while
84. 2 grand am 1 CFG Back File Format View Graph Type AddTest HistoryLog Single Test Hele ea eee Tele Leo aT deleve Time sec i DataMite Analyzer v3 2 grand am 1 CFG Back File Format View Graph Type AddTest HistoryLog Single Test Help elella ees Tes Wels Lele Pe edele eve se sca Engine RPM MPH Aq Gs Cltch Slip Distance vs Time grand am 1 1 r ee 2008 i i y i i Engine RPM 6594 1 i 1 IMPH Cursor l Jaccel Gs TE r eee EI AEA E a E E i i i Distance Time Chapter 4 Examples One way to zoom in on an area of the graph is to click on the area in the upper left corner and drag holding the mouse button down to the lower right corner A box is drawn around the area which will fill the graph once you release the mouse button The graph below shows the result of this action Another way to zoom in or out is to click on the 8 arrow keys here or click on Set Scales button You can display the cursor line by clicking on one of the graph lines The value of all the graph lines at the cursor is displayed here Note that at a distance of 1321 feet almost exactly the quarter mile point of 1320 feet that the time is 9 90 seconds bottom of screen and the MPH is 137 9 This is very close to your time slip of 9 872 at 138 58 MPH You can move the line left or right by clicking on the cursor arrow buttons here 131 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Ch
85. 215 HP 4400 RPM 209 5HP 4450 Some points concerning Figure 4 37 and Table 4 1 include e These plots are of Corrected torque and HP That means they use the specs in the Test Race Conditions to calculate a correction factor which has a major effect on the results If you accurately enterTest Race Conditions for this run and for your future runs Corrected torque and HP will make better comparisons of your modifications That is because Corrected torque and HP should correct for any change in performance due to weather Any change you see in performance should then be due to a real change in the engine not simply weather changes e Table 4 1 shows that not only do the levels of torque and HP match very well but the RPMs where the peaks occur match very well also e By making changes in Vehicle Weight aerodynamics specs etc in the Vehicle Specs menu you can shift the torque and HP numbers up or down However the RPMs where the peaks occur can not be changed by doing this You make two more runs down load them and call them TQ HP2 and TQ HP3 Figure 4 39 shows a graph of these multiple runs The graph shows the resulting plot which shows the resulting curves all agree quite closely When you make a modification in the future any one of these runs will make a good baseline to check for performance improvement 150 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Now assume that you make some improv
86. 25 26 27 Always Autoscale New Graph 23 Analog 7 38 40 41 42 51 52 54 154 155 156 168 169 174 175 176 Assumptions 7 3 27 49 79 152 153 175 Automatically Filter Out Noise 22 back up 170 172 173 Barometer 26 27 Barometric Pressure 26 Baseline 31 Basic Version 1 2 5 19 88 Block 106 Bore 57 58 calibrate 1 41 112 177 calibration 35 37 38 39 40 41 42 79 111 168 174 175 176 177 Carb 106 Chamber CCs 58 Chamber CCs in Head 58 Clear Memory 119 123 147 148 160 164 clearance vol 58 Clearance Volume 58 Clutch Slip 47 79 169 color Com Port 23 37 Comment 100 Comparison Graphs 136 Compression Ratio 9 57 58 177 Configuration 154 Convert to Columns 83 Converter Torque 50 135 136 152 copy 2 5 19 35 102 104 170 171 172 Corr Barometer Hg 26 Corrected flywheel HP 80 Corrected flywheel torque 80 Corrected Torque 153 correction 19 128 132 150 155 Correction Factor 2 141 Current Readings 6 43 44 51 52 53 55 122 155 Current Test 8 12 18 19 21 43 65 66 69 70 82 88 103 108 120 122 123 125 135 145 172 Cursor 92 140 141 145 169 Customer 106 Data Name 38 40 43 121 DataMite 1 4 6 7 1 2 3 4 5 7 8 9 11 12 15 16 17 19 20 22 23 25 28 29 31 35 36 37 38 39 40 41 42 43 44 51 52 53 65 66 69 70 71 75 78 79 83 99 101 102 104 105
87. 3 Summary Graph The summary graph shows Engine RPM and vehicle MPH graphed versus Time for the current run of this particular file Figure 2 6 The increment of the time and the level of Filtering smoothing can be selected in the Preferences Menu Section 22 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 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 Seconds Is the time for this row of data in seconds The increment of the Seconds can be selected in the Preferences Menu Section 2 2 Engine RPM Vehicle MPH This is the engine RPM and vehicle speed in MPH for the corresponding times These numbers are averaged for all the time data which is closer to this time than the time above or below it For example if the times are 2 0 2 5 3 0 etc the RPM and Figure 2 6 File Options at Main Screen MPH numbers given at 2 5 seconds RPM are for all times from iA Drag Race DataMite v3 2 Performance Trend 2 25 to 2 75 seconds File Edit Graph Report Track Conds LogBook De New get data from DataMite Etrl N Open from all saved tests Ctrl 0 Open from History Log 2 1 5 Main Screen Commands Save Cils Save s Ctrl 4 The next section discusses some of the commands avail
88. 30 147 149 150 153 176 Torque Arm 176 Torque Measurement 176 Torque HP decimals 22 Tq 7 47 70 71 77 80 86 126 149 169 TQ 149 150 Track amp Event 16 66 Transfer Program 2 Troubleshooting 7 3 12 40 44 71 127 157 158 164 Turn Off Filtering 106 Type of Test 25 66 nlocking 2 5 8 19 nlocking Code 2 5 19 nlocking Program Options 2 5 19 pdate rate 52 se MM SS SS Time 78 sed 38 121 ser Defined 50 ser Specified Max 53 ser Specified Min 53 ceccc GG ere Vibration 71 127 157 166 167 Weather 16 25 26 27 37 124 155 170 Weather Station 25 26 27 37 Weight 47 62 150 Wet Bulb Temp 60 61 What to Report 77 78 86 When Getting New Data from DataMite 22 Width 49 62 Wind 28 48 Windows 1 3 1 2 18 19 24 49 90 102 103 104 170 171 172 173 Windows Printer Setup 19 90 183
89. 64 165 167 Jets 31 Just Power Run 86 Lane 1 29 Larger Font Print Size 100 Launch 129 147 169 Legend Graph 23 89 94 108 138 142 Length 16 28 Library 8 12 18 88 101 102 103 105 106 107 135 170 172 173 182 Log Book 1 13 16 20 23 25 28 29 30 50 62 66 99 123 125 128 153 Magnets 40 154 156 165 Main Screen 6 2 5 7 8 11 12 15 16 17 18 19 20 21 30 31 38 43 65 66 69 75 77 85 88 102 103 106 107 120 121 123 126 127 129 132 135 136 143 149 170 172 Main Screen Filtering Level 21 Main Screen Graph Lines 21 Main Screen RPM Increment 21 Master DataMite Specs 35 36 37 66 121 Match Time Slip 23 28 128 137 152 153 Method of Recording Weather Data 25 60 61 Motion Ratio 112 MPH 1 8 16 17 19 20 21 28 29 30 39 47 71 79 88 108 124 128 129 130 132 149 153 169 Multiple Tests 80 81 88 142 Multiplier 40 New get data from DataMite 17 123 132 New Test 6 16 18 65 66 70 71 122 123 124 125 126 128 149 Noise 22 40 70 71 72 73 127 129 132 136 147 157 166 167 169 Obs Barometer Hg 26 Observed flywheel HP 80 Observed flywheel torque 80 Open 4 8 12 18 21 30 43 48 49 65 66 101 102 104 105 106 107 124 135 172 176 Open from all saved tests 12 18 30 102 107 135 Open from History Log 18 102 135 Open from Floppy Drive 18
90. 77 78 86 109 125 129 135 149 Run Description 16 66 126 148 Run Log 6 20 31 66 75 107 115 125 135 Runs Graph 109 Sampling Rate DataMite II 37 Save 1 8 10 12 17 18 21 22 27 35 37 43 44 65 69 70 83 101 102 103 104 107 108 121 124 125 149 177 Save As 18 44 104 124 Save As Master DataMite Specs 44 Save to Floppy Drive 18 Search find 18 Segment Times 77 80 145 Send Data 6 43 111 Sensor 7 38 39 40 41 42 53 121 156 174 175 176 177 178 Sensor and Calibration 38 39 40 53 121 177 Setup 3 35 70 119 120 132 147 160 164 165 167 Setup Mode 119 120 132 147 160 164 165 167 Shock Travel 111 112 175 Show Files Only Fitting These Conditions 106 Single Test 82 Stroke 39 57 Summary 17 21 28 99 170 Summary Graph 17 Suspension Analyzer 103 111 112 113 177 Tabs 15 21 30 Tabs dyno runs 15 21 22 Tech Help 3 5 Temperature 26 27 53 71 Test Comments 16 65 66 100 141 Test Conds 6 9 12 16 19 23 60 61 65 66 80 123 153 Test Data Grid 17 Test Folder Name in Program 22 test time 16 thermocouple 38 40 42 120 154 156 Thermocouple 38 43 53 120 156 Throttle Stop 43 129 Time Align 89 96 138 139 141 145 Time Date 66 126 torque 1 9 21 22 25 27 35 48 50 66 71 73 77 80 86 135 136 147 148 149 150 151 152 153 157 169 176 Torque 22 50 1
91. 961 1 MENY Slide Slide Button down to view more rows of data if any Slide Slide Button left or right to view more columns of data if any so 16177 7207 6130 4 80 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Segment Time Analysis and Multiple Tests comparing 2 or more tests Pro Version Only This special report gives the time for the car to reach various distances on the track points which coincide with the segment times reported at most drag strips on the time slips Times are given both for cumulative time from the first RPM and time between each distance segment times Figure 3 4 also shows a Comparison Report of Multiple Tests 3 tests in this case Figure 3 4 Comparison Segment Time Analysis Report of 3 Runs eZ These 3 Menu Items A Drag Race DataMite v3 2 Performance Trends gte 201 CFG J alte what le amp Back Print Report Types File Hist ry Log Single Test Multiple T amp sts Help F1 omparison Reports are Type Drag Rage Runs 339p Show Data Only nt Edgewater done Click on Single amp Comments u Len 1920 Quarter Mile a v v Show Data and Difference Hl Test to just report for the un cane Ee current test run Feet gto0201 CFG gto0203 CFG Ber gto0202 CFG Ss Feet Segment Times Segment Times if Segment Times Dif 0 A 000 60 J 1 542 330 i 3 015 660 i 2 606 D y 0 ES Hoo 2 280 0 5 T The Dif column 1 946 0
92. ABILITY 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 SOFTWARE 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 EVEN
93. Chapter 2 Definitions 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 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 Compression Ratio Clearance Volume Swept Volume Clearance Volume 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 H
94. Chapter 2 Definitions Figure 2 39 Calc Dew Point 2 8 3 Calc Dew Point deg F Depending on your choice of Method of Recording Weather Data you Calc Dew Point will be entering either Dew Point or Relative Humidity in the Test Conditions menu This is the Calculation Menu you will get if you are Weather Inputs using Dew Point Know Relative Humidity Outside Air Temp deg F Outside Rel Humidity See Section 2 3 Test Conds menu to see why Dew Point is usually more accurate and less confusing than Relative Humidity for entering humidity information Dig Bub Temp deg E Wei Bulb Temp dea i Use Calc Value If you know the relative humidity 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 Know Relative Humidity 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
95. 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 6 The Run Log shown here empty because the program is brand new keeps a chronological list of the runs you have download from the DataMite box Click on the Details button at the top for more information to be displayed 2 1 1 Tabs A test you download from the DataMite usually is for only 1 drag race run however can be for as many runs as the DataMite s memory can store possibly 10 or more You move to different drag race runs of this test by clicking on the Tabs at the top of 15 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions the screen If you want to break up a test of 2 or more runs into smaller tests possibly with only 1 drag race run per test click on Edit at the top of the Main Screen and select Redetermine Beginning or End of Run See Section 2 10 page 67 2 1 2 Race and Vehicle Conds Run Pro version only Track amp Event Pro version only Run Description Pro version only Describes the run track and event based on settings in the Log Book menu Click on this item to display the Log Book menu where this data is contained Density Altitude or Dry Density Altitude Is the effective altitude factor based on the Weather Specs entered in the Test Conds menu Click on this item to display the Te
96. Coil a2 ru Coil 7 5 Springs Description l Yehicle Corner Weights Exact Vehicle Weight Ibs Rear Left Lt Tire Temps 2 Rt Tire Temps Out Mid In Corner Weights jn Mid Out I e 11 II leae 680 Cross bo ed Tru Coil 17 5 MT slick Rear Suspension ype ink tod Li Link to4 Link Progra near 4 Link Axle Bracket Lower RD Run LC Len ic Ht Anti Sqt L File 9 89 l Help Other Settings Type in most any comment to describe the Wheelie Bar settings No entry is required p 35 Figure 2 16 Torque Converter Log Book Screen w Converter Records Back ok Help Converter Records Converter Chapter 2 Definitions You can link to our 4 Link Calculator program to have Anti Squat calculated for you here If in Vehicle Specs you had specified the transmission as having a clutch this screen Records Manufacturer User Defined Stall RPM User Defined Diameter in User Defined Torque Multiplication User Defined Top End Slip User Defined User Defined User Defined User Defined M Help Enter most any type of data you want either numbers or words If you right click on a title box originally marked User Defined you can enter a Title for that particular data type which will be now used for this and all past and future r
97. DataMite 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 44 e A magnet may have fallen off e Wrong calibration for an Analog channel See Appendix 5 169 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Recorded Data Good Calculated Data Bad Calculated data includes these types MPH Clutch Slip Tq Accel Gs Converter Slip HP Feet Tire Slip Calc Gear Ratio Gear Tire Growth These calculated outputs require some signal to determine vehicle speed Typically this is done with a front wheel speed sensor but these can be illegal in many drag racing events Then you may want to use an accelerometer Two 2 accelerometers are built into the DataMite II box and they can be ad
98. Drag Race DataMite Analyzer V3 2 for Windows 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 48152 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 2002 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 1987 1998 All Rights Reserved International Business Machines Corp makes no warranties either expressed or implied regarding the enclosed computer package its merchantability or its fitness for any particular purpose IBM PC XT and AT are registered trademarks of International Business Machines Corp 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 MERCHANT
99. FG file configuration l return to file which is the DataMite ae the Main and dyno settings engine Screen specs test comments etc This is the file the program actually looks for when you open a test or save a test etc 15 0 Time sec C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction For that reason you will see a Figure 1 6 Test Conditions Menu Pro version CFG after w Track Race Conditions xi the test name Back Help like in the Type of Test Race Summary square brackets Type Drag Race Runs Track Length ft 5 a Click on at the top of sare foe most any the main screen Track Weather Conditions 7 spec or shown in Method of Reading Weather Data f He spec name Figure 1 3 2 ze and a brief 3 The LAP file nom Beer Ae Help lap or run file T or description which the ee 2 i irgcti Head Wind v IS given DataMite Air Temperature deg F bei the elp Frame Analyzer u Ses Relative Humidity Observgd barometer reading in inches of mercury with a page to determine Fl ak directly off a barometer instrument not where each run evation feet corrected to sea level for elevation p 51 A starts and stops Density Altitude ft me Eyen thaueh additional 8 Dry Density Altitude ft info you may have recorded 45 seconds of time for a dyno run the actual ru
100. M 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 es Reader 4 0 FrontPage DM BAT 5 el u Fa MS Recycle Bin QuickBooks Support and Phe Windows Explorer Internet Explorer History Desktop v n My Computer My Network PI Type the name of a prc resource and Window m Open fa Setup EXE PMRtart Gy Programs ET DTMMANL TRY Micros 1 Click on Start then Run DataMite v2 0 File name Files of type Printers pt w95 exe OACCexe o Susp nzr exe o Trgr w95 exe DyDM w95 exe PFA 32 ex Datataite v2 0 Backup Il DR DTM exe x Programs ba E DTMDragMANL0 DO EVURB3393 2 Click on Browse 3 Find the Programs folder on the CD Rom drive 4 Find the DR DTM EXE file and Open it C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction Entering Registered Owner s Name The first time you run the Drag Race 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 b
101. Once a New Test is started you can easily erase or modify any of the specs listed above Data M ite Any specs not selected to Keep will be mostly blank when you start the New Test to bring 4909 T AEFT up the z E E fj o BEE BR New Test 4 2 o Screen aoran o RAR NS n naano As shown in Figure 4 7 There are 6 critical specs at the 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 DataMite specs there would be no summary of the Master DataMite specs You would have to fill out the DataMite Specs before the program would let you start a New Test 123 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 9 Vehicle Specs When finished changing these specs click of File then Save As to save these changes to a name of your choosing These are saved in a separate Vehicle Library mm Vehicle Specs 78 Grand Am Back File Hel asians coe click on the Clc button to sence nl uate eine bring up a Calculation Total Weight with Driver Type Auto Turbo Hydromatic 35Q Menu to calculate an input from other types of inputs If you don t know a spec Final Drive Ratio Clutch Converter Torque Conter v Rear Tire Radius in Efficiency 90g 3 amp 4 spd Aud
102. Open Master DataMite Specs 43 Operator 106 Opponent 1 29 30 125 Other RPM 39 40 Pick Individual Items 77 79 80 143 145 piston 58 Preferences 6 8 12 16 17 18 20 21 28 66 85 100 106 107 126 129 152 Print 18 19 44 99 100 106 108 170 Print List of All Files Fitting These Conditions 106 Printed Graph Width of Page 24 Printer 6 23 75 90 99 100 Printer Fonts 23 100 Pro Version 6 1 2 5 7 9 11 12 13 15 16 18 19 20 22 23 25 28 29 50 54 66 75 80 83 86 88 89 94 99 100 102 105 107 111 115 120 125 126 128 129 132 135 141 142 145 151 152 153 Program Title Comments 23 Quality Data 136 137 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Range 53 78 Reaction Time 1 30 125 Record 1 119 123 147 148 155 158 160 164 165 166 Recording Segments DataMite II 38 Redetermine Beg End of Runs 70 registered 3 2 5 19 Registered Owner 3 5 Relative Humidity 26 60 61 Remove Test 88 Repeatability 152 Report 19 25 26 77 78 79 80 81 83 86 99 100 109 115 143 145 Report Type 79 Reports Comparison 80 81 88 142 144 Road tq HP 79 80 149 RPM 1 8 17 20 21 38 39 40 42 47 51 52 54 59 71 77 78 79 81 86 88 119 121 129 135 136 143 147 148 149 150 151 153 154 155 156 157 158 160 165 166 167 168 169 174 Run 16 66
103. Open Test File FORZA HEA 310PM 135 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Comparison Graphs Graphs are often the most insightful way to compare two runs You can see at a glance how the runs compare where one setup is stronger higher acceleration rates reaching certain distances quicker You can also see if the data looks accurate If you know something about how a modification should affect the run you can see at a glance if it did For example if you made a minor change to the vehicle you would expect the 2 drag race runs to be fairly similar For changing a torque converter you would expect stall RPM and converter slip to be the biggest changes 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 22 You will graph Engine RPM driveshaft RPM and front wheel RPM and Distance vs Time for just the actual runs with Filtering set to None You will obtain a graph like Figure 4 23 There are no noise spikes which need to be edited out indicating the sensors are working quite well If there were noise spikes it may be possible to have the program remove them See Section 2 10 on Editing Out Noise Spikes Figure 4 22 Graph Specs Menu Figure 4 23 Graph Checking for Data Qua
104. Pick Which Specs to Keep based on current file GRAND AM CFG from a list of previous DataMite See Specs Type 4 Channel DataMite Note Vehicle File Track and Event Name you just Sati Vehicle Vehicle File 78 Grand m Veh Wt 3680 lbs Finaomermam o Test memanas TOI nn Iptions you m Ze eee Front Tire Radius 11 5 Trans Auto 5 a er a Log Book Keep All Inputs even those likely to change with each run a Heer parang See Specs A Right Tree Ful 500 Win Time Trial MyR T Diallrc 99 OppntA T Del non changing ane Right Tree Full 500 Win Time Trial MyR T Dialln 9 9 Oppni Delay name from the list of your ae Box previous entries Then it is ier to find tests b Track Conds cee Specs Track Len 1320 ft Dnsty Altitude 1533 ft Air Temp 74 degF Wind 4MPH Actual Results easier to tind tests because MPH 138 58 ET 9 872 the names are more Test Comments Keep this box checked to use comments below for the New Test Note that you can consistent between different erase and change these comments here new converter 0737 2 new starter new flexplate tires 7 psi test files Throttle Stop ON 5 Folder Name for New Test Once a New Test is started you can easily erase or modify any of the specs listed above is the folder in the Any specs not selected to Keep will be mostly blank when you start the New Test DTMDATA folder where the test will be saved Folders are a way to group similar tests to
105. REED 1 which would then become the Current Test You would then have to open the original REEDOS9 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 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 Drag Race Runs Accel to Meas Tq HP or Custom It looks for the patterns in the data it expects to see for the different types 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 48 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 different than when you first Figure 2 48 Redetermine Beg End of Runs downloaded the data from the w Summary of Lap Run Analysis x DataMite These changes could include When analyzing data file REEDOS DAT You have Edited Out some As Accel to Measure Torque and HP Noise Spikes e You have Cut the Beginning The DataMite Analyzer program has found or End of Data so the data file A Number of runs 2 now looks different Minimum run time 9 83 e You have changed the Test Maximum run time 11 5 Type from Custom to Accel to Median run time 9 83 Meas Tq Hp or vice versa
106. Race DataMite Analyzer Chapter 4 Examples Example 4 1 Installing the DataMite on a Vehicle and Recording a Drag Race Run Suggested Background Reading e Section 1 5 Example to Get You Going e Most all of Sections 2 and 3 Definitions of Inputs and Outputs e Appendix 2 Hardware Installation and Operation This example demonstrates the basic steps to installing a standard 4 channel DataMite on a drag car setting up the program s specs for this vehicle and recording a drag race run This example will be very thorough so all possible steps are presented You may decide to omit some steps DataMite Installation Example 4 1 will be fairly long covering the entire process of getting and analyzing data We will assume you have installed a 4 channel DataMite as outlined in Appendix 2 The sensors include e Channel 1 is engine RPM wired to an MSD ignition module Tach Out pin e Channel 2 is recording front wheel RPM with 2 magnets epoxied to the inside edge of the front wheel e Channel 3 is recording driveshaft RPM with 2 magnets epoxied to the driveshaft with a sensor mounted on a bracket mounted on the pinion housing e Channel 4 is recording exhaust temperature After the DataMite is installed it is a good idea to check that all sensors are working Put the DataMite into Setup Mode by powering up the DataMite The Record LED light emitting diode may flash or stay off for several seconds but will eventually light steady If th
107. Ready to Try Again A3 2 follow the suggestions in Figure A3 2 for ddublechaoting DataMite Not Responding Possible reasons include DataMite power or communications serial cable not connected DataMite recorded less than 10 seconds of data DataMite not ready LEDs must stop flashing before downloading After powering up the DataMite wait at least 10 seconds 30 seconds for 512K If you have disconnected the DataMite from the vehicle and the main harness to download at a computer away from the systems before trying to download data vehicle be sure the DataMite s power supply is Investigate the cause of this error and try again answer Yes below If the connected and On problem persists disconnect power or turn power off to the DataMite This willl reset it without loosing any data so you can try again If this doesn t work you will have to press the Clear Memory button on the DataMite This resets the DataMite but you WILL loose your data Are you Ready to Try Again C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Only Some Data Recorded This would be situations where the DataMite starts a run recording data then during the run it stops recording If both LEDs start flashing on the control panel the DataMite has become confused and has locked up much as your computer can lock up This is usually caused by electrical noise from the engine a noisy u
108. S v1 1 or 1 2 Just copy them into a folder under the DTMDATA 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 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 Advance Open or Save Screen Figure 3 26 Advanced Open or Save Screen Open a File If you click on the Advanced File name Folders button in either the Open or Save d vbwin cam a examples As screen you will obtain the 8094 104 Sy ds screen shown in Figure 3 26 ud6060 s 107 vbwi From here you can access most and xcrltrk pti a a file on the computer on most any xdrag pti cam anz camdata disk drive examples List files of type All Files Tips to Advanced Users DataMite test files actually consist of 3 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
109. SSS PAT This calculation is based on the existing Short into the original wie Ify an Eben WERDE a_i ain Block specs of a Bore 4 and Stroke 3 If this already know a spec in the form Ioniti is incorrect change these specs before using this gnition an required by the program then you Distributor Stock TFI Enter a negative Dome CCs for a Piston Dish Enter a negative Deck Height Clearance if the have no need to use the calculation menu For example if you know the Spark Plugs piston goes above the deck at TDC cn Gap 044 Timing kie Compression Ratio is 10 3 you have Use Calc Value Help Cancel Print no need to use a calculation menu to Hag calculate Compression Ratio based on Gasket Thickness Piston Dome CCs etc 2 8 1 Calc Compression Ratio Is the Compression Ratio calculated from the following specs and the current cylinder volume based on the current Bore and Stroke in the Engine menu See page 57 for general notes on Calculation Menus and for an example of their use 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 57 C Performance Trends Inc 2002 Drag Race DataMite Analyzer
110. 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 32 This is done almost exactly the same way as done in the History Log displayed at the Graph Screen Figure 3 32 Report History Log Drag Race DataMite v3 2 Performance T ends gto0201 CFG A gt Back Print Report Types File History Log Multiple Tests Help F1 Type Drag Race Runs 3 39 pm 05 11 2002 E T 11 483 Event Edgewater Comments Trk Len 1320 Quarter Mile Dnsty Altitude 1240 MPH 116 23 Run 1 Engine RPM Front Wheel RPM Feet Driveshaft RPM Accel G s Driven RPM Drive RPM Figure 3 31 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 comma For example to graph runs 1 and 3 Cancel enter 1 3 BD E Click on History Log to display Test History Log Report History Log options are Run 1 of 1 Air Temp 70 60 ft 1 587 Desc 1st time run 4163 0 5393 405 4916 513 5098 605 5298 665 5411 714 5534 759 5673 805 5785 844 5152 880 5133 905 5230 933 5246 972 5296 997 306 1715 2182 2470 2750 2947 3151 3328 3475 358 3704 6885 3978 4077 1 330 749 91 0 306 1715 2182 2470 2750 2947 3151 3328 3475 3581 3774 3885 3978 4077 513 605 665 714 759 805 844 880 905 933 972 570 604 698 632 471 250 237 434 541
111. T 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 consequential 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 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 vehicle 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 Tim and Deb Gillespie a Super Gas race team have been most helpful with sugge
112. Take the proper precautions using shields and high quality fuel system components to minimize these dangers Anticipate that the engine or vehicle component can fail and you will cut down on the chances they ever will The Drag Race DataMite Analyzer has features which estimate the vehicle s performance based recorded data some user input and assumptions These estimates can be used for analysis of performance on the race track or on the street However these assumptions like knowing the friction losses in the drivetrain accurately knowing the vehicle s rotating 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 the user are the key to properly understanding and using the data If confusing results are obtained take a minute to Plot the Raw not calculated data and see if that looks correct See Appendix 3 on Troubleshooting If the Raw 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 testing procedure Ask someone else skilled and experienced in the particular area Give the retailer or Performance Trends Inc s Tech Help Line
113. Value freq hz Read 2nd Yalue engineering units 2nd Yalue engineerii i 2nd Value engineering units 2nd Value freq hz Read I 2nd Yalue freq hz 2nd Value freq hz Read BE Note l Note Note Pick the location of the sensor and of magnets Pick the location of th senyor and of magnets Pick the location of the sensor and of magnets or targets if a different type of sensor is being or targets if a differght typ of sensor is being or targets if a different type of sensor is being used on the rotating component used on the rotating component used on the rotating component Keep Specs Help Cancel Print Keep Specs Help Cancel Print Keep Specs Help Cancel Print Click on Read buttons and Click here to load final program will read signal currently calibration back into coming from this sensor DataMite Specs menu 177 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies D ee Figure out EXACTLY the shock travel that produced 2 Value and type in into the appropriate spot in the calibration screen perhaps 1 05 inch exactly Then click on the Read button for 2nd Value Freq hz and the program will read the signal from the sensor with 1 05 inch of travel It will store this reading as the 2nd Value Freq hz where you can see it
114. __lskLen_ Dene Ab 60 slide bar down to 04 13 2002 Race Runs 9 873 139 38 m EN 04 13 2002 DragRaceRuns 9 896 139 03 Time Trial display all 25 100 04 13 2002 Drag Race Runs 9 896 139 03 Time Trial tests in the 04 13 2002 Drag Race Runs 9 896 139 03 Time Trial 05 18 2002 Drag Race Runs 11 557 111 56 Lose History Log 05 18 2002 Drag Race Runs 11 557 112 88 Time Trial 05 17 2002 Drag Race Runs 11 493 114 63 Time Trial gillespie accel gto0201 chq 05 11 2002 Drag Race Runs 11 483 116 23 Time Trial gillespie accel gto0203 cfg 05 11 2002 Drag Race Runs 11 405 116 48 Time Trial Click on Test Title 1st Column to Open that test Click and slide button on right for more History info gillespie a eT cfg gillespie accel broged1 use accel cfg gillespie accelgtoindyptsmt03 cfg gillespie accel gtoindyptsmt02 cfg gillespie accel gtoindyptsmt01 cfg w a aN w ma From this screen you can Open a test file by clicking on the Test File and Path column first column on the left If the 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 DTMDATA folder using the Advanced function the entire path is given Ifthe Path and File Name won t fit it is shortened and preceded by You can choose
115. a sensor input into useful information like 2 2 volts is 34 ft lbs of torque When you save the drag race run 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 Lets say several months later that you buy a new DataMite II 30 Figure 2 19 Illustration of Master DataMite Specs Channel system Or you could have changed any DataMite spec different sensors different calibrations etc Your current DataMite II specs do not match the Test File TestCh4 A Test File contains the raw DataMite data and other specs to calculate Tq and HP and analyze results specs for TestCh4 If you open The program keeps the old TestCh4 the program i separate records of your installs the 4 Channel DataMite Master DataMite Specs specs which you used when you ran Br the specs describing the that test This lets you accurately se DataMite you are calculate torque and HP and other 2 currently using These data just as you did when you first Master DataMite Specs ran the test are used whenever you start a New Test If you go into the DataMite Specs menu you will likely get a message shown in Figure 2 18 saying that the DataMite Specs for TestCh4 do not match your Master DataMite Ch 1 Exh Temp 0 1600 deg Specs the specs for your current e DataMite II 30 Channel system You may ask What are Master DataMite Specs N
116. able at 5 z the top of the Main Screen Most will not be discussed here in Open from Floppy Drive A Drive detail as they are discussed in other sections of this manual Save to Floppy Drive A Drive Search For find Runs File see Figure 2 6 for File Options Print this Main Screen Print Other Screens New get data from DataMite Windows Printer Setup Unlock Program Options Transfer Program to Another Computer Click on File then New to start anew run This process will walk you through some critical steps to preparing to download data from the DataMite You can select to keep certain data Exit Program Ctra from the previous test like test comments engine specs etc Keeping data can save you considerable time since you don t 17 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 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 Open from all saved tests This option presents the Open Test File menu discussed in Section 3 5 Data Libraries From there you have several options to open a previously saved test file from any place in the Test Library or from most any place on the computer including the floppy disk drive Open from History Log Pro version only This option presents the History Log a chronological list of test files you have been working with as discussed in Sect
117. ack 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 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 to the left of it to display the contents of the DTM20 folder You should now see the DIMDATA folder Right click on the yellow DTMDATA 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 171 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Figure A4 2 Copying Files with Windows 95 98 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 EN Exploring pfa30 File Edit View Gof Favorites Se Back Forward Up Address C perftms pti pa30 Tools Help Cut Copy Paste x B Properties Views
118. ae ure 4 33 Report Snowing averi es from 1000 to 1320 Ft A Drag Race DataMite v3 2 Performance Trends grand am 1 CFG BEE B gt Back Print Report Types File HistoryLog Single Test Multiple Tests Help F1 18 x Type Drag Race Runs 6 02 pm 08 19 2000 E T 9 872 Event 2nd time run amp Comments Trk Len 1320 Quarter Mile Dnsty Altitude 1533 MPH 138 58 Run 2 Run 1 of 1 Air T 60 ft 1 449 it Temp 74 Desc Edgewater bracket race kI Astericks denote what rows are included in the averages For this longer report you have to click and drag the slide bar to view all results Averages shown here on last row of report 143 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 34 Making Comparison Reports of 2 or More Runs Click on History Log to display History Log shown below Click on Multiple Tests to have Report Screen A Drag Race DataMite v3 2 Performance Trends grand am 1 CFG di d t fr m B Back Print Report Types File HistoryLog Single Test Multiple Tests Help F1 sp ay ala tro Type Drag Race Runs 6 02 Show Data Dor 3 j several tests for Comments Tik Len 1320 Quarter Mile Dnsty y Sho il comparison If you Run 1 of 1 Air T r p select Show Data and Difference the additional columns are added showing the difference between the current test and the other tests for comparison
119. al Installation For Stronger Signal For Weaker Signal the first b aoe ass Tie Wrap Inductive Wrap Inductive Pickup Move the Inductive coireil 4 E Pickup Wire to Wire Around Spark Plug Pickup Wire a Few a Spark Plug Wire Wire Several Times Inches Away from Spark Plug Wire identified when 167 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies a ee Er e RPM looks correct at relatively low RPM 1000 3000 RPM e At higher RPM the computer reads RPM too high say the tachometer says 5000 but the computer reads 6000 This problem can be corrected by switching to new or higher spring tension points e Even though the Setup Mode seems to show engine RPM signals are entering the DataMite the source of the ignition signal may not be as correct as possible Refer to ignition signal sources described in Appendix 2 e Ifyou 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 2 e On some applications where engine RPM can actually be quite variable from firing to firing like single cylinder engines at lower RPM or when running rough Performance Trends has a different DataMite chip which may correct this problem Contact Performance Trends for details e If your engine has an unusual ignition system very new production system distributorless etc there may not be a clean
120. 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 calculation replaces reading the chart The Wet Bulb Temp must be less than the Dry Bulb Temp 60 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 40 Calc Relative Humidit 2 8 4 Relative Humidity Depending on your choice of Method of Recording Weather Data you Calc Relative Humidity 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 Weather Inputs using Relative Humidity K Dew Point now Dew Point Hutsiie Ax Temp deg E See Section 2 3 Test Conds menu to see why Dew E Dew Point deg F Point is usually more accurate and less confusing than Relative Humidity for entering humidity information Dry Bulb Temp deg F Wet Bulb Temp deg F lise Cake Value If you know the dew point of the air and the air temperature select Yes Otherwise select N
121. ame 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 8 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 Because the Suspension Analyzer is a 32 bit program not compatible with the older Windows 3 1 it can use most any type of file name The names can be up to 50 characters long and can inclu there are certain limitations for file names as they can not contain c program will warn you if you use an illegal character de spaces and upper case and lower case letters However ertain characters like gt lt The 103 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Test files are saved to folders directories you have created in the DTMDATA folder directory in the DTM20 folder directory under PERFTRNS PTI folder directory You can copy Windows Drag Race DataMite Analyzer files from programs on other computers to this folder directory and they will be found by the program The Windows Version 2 0 will read files produced with the older DO
122. ames 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 ist of New Names Title Corr Tq Corr HP Hxhaust Comparis lt 1 10 Exhaust Flex Itm 1 Corr Tq Itm g Corr HP Standard name from row selected Tip CHEN New name for you to edit Other options Click on the item in the list above y want to modify Its x4 Name include clicking on the Copy Std Name and any New name appears belay You can modify theflew name Then use the up and down arfow keys to move to th next item to New or Blank Out New Name buttons Std Name Being Replaced New Name to be Editted amt00 0008 1 Click here to close this menu and use Copy Std Name to New Blank Out New Name the New names you have entered Where New names have been left Copy All Std to New Names Blank Out All Mew Names blank the Standard name will be used Use Std Titles Usg New Titles Cancel Help 94 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 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 Pro has several ways to change the scales as shown in Figures 3 17 and 3 18 Figure 3 17 Changing Scales for the X or Y Axis Clicking on these buttons zooms in or zooms out
123. ance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 Occasionally racers just use magnet on the wheels or driveshaft to avoid this spacing issue 1 magnet is always evenly spaced However with only magnet the DataMite s RPM measurements are slower and more erratic to record the exact start of the drag run from a standing start You must fabricate your own brackets to allow adjustment of the sensors from 050 to 200 from the magnets See Figure A2 1 Tips for brackets e The brackets must be sturdy either thick metal or 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 DataMite module and control panel would on a metal plate away from the engine Metal is preferred because it can absorb some of the electrical noise emitted by the engine s ignition system Keeping the DataMite box away from the engine also reduces the likelihood of electrical noise problems Also keep it out of sunlight to keep it cooler To mount the 4 channel DataMite module hold the module in place on the flat surface you ve selected
124. and downloaded DataMite data is much faster responding and more accurate than typical tachometers Other RPM Calibrations Figure 2 22 Sensor Pick the source of the RPM data This can be very critical for calculated results like MPH distance acceleration rate clutch slip etc The choices for this sensor include e Front Wheel RPM which is used for MPH distance acceleration rate and tire slip unless you have an accelerometer e Rear Wheel RPM which is used for tire slip and clutch or converter slip e Driveshaft RPM which is used for tire slip and clutch or converter slip e Other RPM which could be some RPM on an engine pulley like water pump or supercharger RPM 39 C Performance Trends Inc 2002 e Analog Converter for sensors like thermocouples for temperature pressures shock travel etc 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 revolution 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
125. anges to the current file 102 C Performance Trends Inc 2000 Figure 3 25 Saving Test File Options Click here to save specs to New Test name shown Click on File then Save As to bring up this Save menu lA DataMite Data Analyzer v2 0 Performance Trends CAM Filg Edit Test Conds Datahfite P Dyno Run 1 Graph Report Engine Dyno DataMite Analyzer Chapter 3 Output New name to save test data to Leave unchanged and click OK to save to the current test name This would be the same 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 TEST referert Click on the down arrow button to pick a different folder to save this test to Note that the top choice in this list is Add New Folder Pick this option and then you can Test amp Er 2 fH w Save a Test File 2 047 Bo f 815 Str 996 Corr Folder Name IN dw Folder Name Test Dat ook Cancel Help Advanced Enter a New Test Name and click on OK The current Test name is given should you choose to modify it slightly for the new name Use the Delete key to erase the name if you want a completely new name If you want to save the Test unde
126. apter 4 Examples Conclusions 132 The installation of the DataMite hardware is critical and is covered in Appendix 2 The basic operation of the DataMite can be checked without a computer by putting the DataMite in Setup Mode Program settings especially the DataMite settings are critical for accurate data These DataMite specs are saved in Master DataMite file so each new test starts with the current settings for these critical specs Recording a Drag Race run is outlined as 7 basic steps Once a test is performed the data is downloaded to your computer from the DataMite by clicking on File then New get data from DataMite commands at the Main Screen In the Pro version you have additional inputs for improving the accuracy of the data like Matching Time Slip data This lets the program calculate a correction factor to fine tune some measurements to get the recorded time distance and MPH numbers better match the Time Slip results In this example the correction factor was quite small less than 1 which is a good indication the recorded data and program settings are quite correct You should check the raw recorded data for noise spikes and general data quality Once you are confident the raw data is good you can better trust other calculated results are good also Results can be quickly and thoroughly analyzed with graphs and the many graph features C Performance Trends Inc 2002 Drag Race DataMite Analyz
127. arrow button to select a pre programmed selection For most others you can only select from a list of pre programmed choices Comment text frame to enter a w General Engine Notes x comment to describe these component specs 400 CID bored 060 aj These comments are saved with the specs in the J Short Blo k Cam amp Heads Component ype 14 Stroke v Bore Head s Heads Up xxxx casting 16 Library in the case shown here Crindeh BT Stok ees Rt Hind Eanom er ed VivDia PotCCs RRatio Lash Library 407 20 cid 6674 1 ccs Int moek Some specs have a Clc calculate Piston amp Reds Intake amp Exhaust ae where a Crank Wt amp Descr ibs Fuel Delivery can either enter the Flywheel W amp Dia Jbs Jin Mech Inj ae in onion Fuel Setting J compression ratio Distributor Manifold or click on the Clc button to calculate Spark Plugs Rapidfire 7 Headers it from other inputs Timing Mufflers Help Click on the dovtn arrow button to select either 2 Stroke or 4 stroke engine types p 33 Standard menu commands which provide the options for closing this menu Back saving or open files of these individuals specs click on File then Save or Open erasing a set of specs click File then New printing this screen click on File then Print etc See the sections later in this chapter for more details on
128. aying a picture is worth a thousand words well a graph is worth a thousand numbers Graphs are generally the best and quickest way to analyze data because your eye can quickly spot trends see data points which look out of line etc To make a graph click on Graph at the top ofthe Main Screen Set the Type to Pick Individual Channels and then select the data types to include in the graph from the list at the top ofthis Graph Specs menu In the Pro version you could have also selected one ofthe Histogram Types A good choice for a first look at a test run is to graph some raw recorded data like Engine RPM other RPMs like driveshaft or wheel RPMs accelerometer data if so equipped That is because other information is calculated from these main inputs like distance traveled clutch converter or tire slip etc Once you have selected what data to graph set the remaining specs below the list of data types Set Time RPM Distance to Time and set What to Graph to Just Run 1 Set Filtering to None so that you see the data in its most detailed and un smooth state The graph specs should look like those in Figure 4 16 Click on the Make Graph button to produce the graph shown in Figure 4 17 The graph shows no major noise spikes but all channels show a little variation up and down This is actually the sign of very good data as it indicates the response of the sensors is quite fast but the number they record is repeating wit
129. builder in designing your engine Your choices for the Type of Histogram include Including all RPM data or just data when the engine is accelerating Histograms when the engine is accelerating is timewhen the engine is probably wide open throttle and is typically what you are more interested in Reporting the numbers in seconds of time or percent time for the whole run Using percent makes it easier to compare Histograms for runs which may be quite different in length of time Histogram RPM Increment Histogram Starting RPM Histogram Engine RPM These specs determine the lowest and highest RPM which will be displayed on the Histogram graph and what RPM increment there will be between different RPM points Figure 3 9 Graphing Multiple Tests Basic Version Choose Add New Test Choose Add Last Test to add the Graphs Comparing More to open up the entire last test you had added to the graph Than 1 Test Basic Ver Test Library from which for comparison Test Folder and to choose a New Test File name are shown for your info There are 3 basic types of tests which can DataMite Analyzer v2 0 REEDO9 CFG be graphed in the Basic version ws e Current test results These are the test results of the test file which you are working with on the Main Screen e Last test results graphed These are the test results which you previously included in the graph for comparison This allows you a way to easily refer back to one particular test
130. cation 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 Yolts Std 0 20 Yolts Analog Sensor Std Frequency Hz D no Torque ft Ibs Ist Yalue engi om fuser supplies specsl Ist Walue freq hz Read Magnets spec is now called Sensor Type Click here for list of Sensor Types if using an Analog Converter C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Analog Sensor Specs 1st Value Engineering Units 1st Value Freq hz 2nd Value Engineering Units 2nd Value Freq hz These 4 specs are used to calibrate a Custom Sensor to read most anything you want These specs can be used 2 ways e Type in 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 e Perform a calibration A calibration is the process where you set the sensor to 2 known conditions positions temperatures etc and let the computer Figure 2 23 Illustration of a Custom Sensor Calibration Throttle Angle 2nd Value x 4 4 volts 82 deg 1st Value 1 0 volts 0 deg read the sensor o
131. ce Print Teeth Engine Primary Gear know the Teeth on the Primary Gears or Sprockets 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 This 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 59 C Performance Trends Inc 2002 Drag Race DataMite Analyzer
132. ch file if any j accel Gs x 1900 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 Leqend The Run or All if all data is graphed is H f included in the Test 10 0 113 12 Time sec Name 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 changed 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 Vertical Y axis The scaling of this axis can be easily changed as described in this section C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output The Graph Menu is shown in Figure 3 7 It is very similar to the Reports Figure 3 7 Graph Options Menu menu in that you select what Data Types you want to graph from the list at CBJEPEIE EJ ihe top Click on a Data Type to select or click on a selected Data Type to Engine RPM channel de select it Channel 2 Channel 3 Driv
133. ch test this connector wire s N to this wire terminal for a term inal to connect the red clip 163 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 164 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Appendix 3 Troubleshooting Data Should you encounter problems recording data or obtain unusual results from your recorded data check the suggestions below No Data Recorded First check if data signals are coming to the DataMite by running the Setup Mode discussed on page 154 Based on what you find try the following DataMite Not Going Into Setup Mode Check DataMite power Do any of the LED lights come on in the control panel Note that it may take 5 seconds or more on 128K systems 10 seconds or more on 512K systems for an LED to light after turning power On If not e First press the Clear Memory button and wait at least 20 seconds to see if an LED will light e Check that the power switch if you installed one is turned On e Check that your power supply is On or plugged in Plug something else into that outlet a light or radio to make sure there is power there Press the red Clear Memory button momentarily once The Record LED should go Off then come On Press the yellow Record button momentarily several times waiting about 5 seconds each time The Record LED should switch between Off and On If this does not happen as described call Performance Trends
134. clutch RPM on Lenco and Jehrico and other transmissions there may already be a magnet installed on the trans input shaft Performance Trends has sensors that typically fit the required size and thread for this application 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 e Small plastic bolts 1 4 x 20 with magnets embedded in the head for mechanically fastening the magnets Figure A2 1 B Spacing Required for RPM Sensor and Magnets Mount on Edge of Inertia Wheel 050 to 200 gap Wheel RPM Sensor Epoxy the magnets in place following the directions with the epoxy Be sure the mounting surface is clean and grease free We recommend using light sand paper or oil free steel wool to clean the surface The epoxy should 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 f 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 C Perform
135. cted Just 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 drag race run If you have selected an RPM Report Your only choice for What to Report is one of the power runs 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 or RPM 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 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 ran
136. ctory the folder which contains the DTM DR EXE program file See Section 3 5 for more details on files and file names 83 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 84 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 3 Graphs Note Also check Preferences Section 2 2 for several Preferences which pertain to graph line colors printing options etc Graphs are obtained by clicking on the Graph menu command at the top of the Main Screen Figure 3 6 shows a typical graph and a description of some of the basic graph screen items Figure 3 6 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 provides 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 recorded data vehicle specs etc Graph Legend which describes the data is D ataMite Analyzer v3 2 oto0201 CFG graphed This includes Baci File Format View Graph Type AddTest HistoryLog Multiple Tests Help Name of the Test Results View Graph Type AddTest HistoyLog Multiple Tests Help sel Belle ee file the particular Run otobi 1 graphed Type of Data 6400 i i i r Engide RPM which data goes with D ee oe ee ee el foot fee whi
137. d flywheel flywheel HP torque above See Observed flywheel torque above Corrected Corr Tq Is the Observed flywheel torque described above corrected 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 Road torque HP Obs RoadTq Is the same as the Flywheel numbers above except the program does not try Corr torque HP to correct for driveline and inertia losses This is estimated to be similar to what a chassis dyno would measure Figure 3 3 Pick Individual Items Report from settings in Figure 3 2 Al Drag Race DataMite v3 2 Performance Trends BROGED1 CFG 5 gt Back Print Report Types File History Log Multiple Tests Help F1 Type Drag Race Runs 3 57 pm 04 13 2002 E T 9 896 Event Edgewater El Comments Tk Len 1320 Quarter Mile Dnsty Altitude 1552 MPH 139 03 Run 1 Run 1 of 1 Air Temp 72 60 ft 1 423 Desc 1st time run Engine RPM Front RPM DS RPM Exh Temp Driven RPM Drive RPM n642 0 149 874 3 0 149 496 1547 1050 4 1547 624 935 2 624 1932 716 917 3 716 2233 901 5 792 2464 Click here for 984 3 873 2770 Report Options
138. ded to the smaller 4 channel DataMite with the proper choice of analog converter Either way you must pay attention to how you mount the DataMite II or analog converter box in the vehicle so the axis of the accelerometer is aligned correctly with the axis of the car These data types are all based on the settings in the Vehicle Specs DataMite Specs and Track Conditions menus Check these settings and their definition in Chapter 2 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 graph 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 98 Or make a report of the data type to eliminate the need for any multiplier Calculated data types usually need some filtering Ifthe calculated data looks noisy or jumpy increase the filtering level to Medium or Heavy See Figure 2 46 and 2 47 on pages 78 and 79 and Figure 3 14 on page 93 If the problem is with Clutch Converter or Tire Slip Tire Growth or CalcGear Ratio be sure the Tire Radius and gear ratios are correct in the Vehicle Specs menu Also do a special test of cruising at a steady slower speed like 30 50 MPH When you look at this cruising data you should see e 0 Clutch Conver
139. dings screen for 30 channel DataMite II w Current Readings Close back Option A 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 6840 to display the digital Fuel Pros number values of either the RPM and Port 1 Attempt 1 Accelerometer Er RPMs amp Accelerometers Std Analog Channels channels or the other Eng RPM 8 e840 Fran 4 Stroke 16 Analog Channels Other RPM 1 Magnet Current Sensor Readings i oil u 5 Current Readings screen Close back Options Trace Recorder Help for 4 channel DataMite The scaling of the gauges and bar gauges and exhaust temperature gauges in the DataMite II screen can be set by the user by clicking on Options at the top of this 1 2880 EngRPM 8Cylinder 4Stroke 3 5724 Driveshaft RPM 2 Magnets screen 2 Front Wheel RPM 16 Magnets 4 Analog Std T C Install Optical Isolator for this screen to avoid possible computer damage 51 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions The Current Readings screen is very useful for troubleshooting the DataMite setup with the car in the shop For example you could wiggle connections and watch to see if a pressure reading jumps around indicating faulty wiring IMPORTANT Do Not use this screen while driving the car unless you have a passenger dedicated to
140. ds Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 146 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Example 4 3 Measure Torque and HP from Acceleration Example 4 3 shows how you can do dyno testing right in your vehicle By doing full throttle accelerations in 1 gear manual transmission you can obtain nearly dyno quality torque and HP curves The car is a stock manual transmission 4 6L 96 Mustang You are doing baseline testing for comparison to modifications you will do in the future The sensor installation is nearly identical to that in Example 4 1 and 4 2 except there are 4 magnets installed on each wheel You are doing your runs at a drag strip not public roads both for safety and to avoid tickets Again we will assume you are the driver You have installed your DataMite following the guidelines in Appendix 4 Before testing you should decide what 1 gear to use for the acceleration tests The gear should not be too low as to cause tire spin but not be so high as to cause excessive speed Excessive speed is unsafe and may produce less accurate data since the aerodynamic specs of Drag Coefficient and Frontal Area must be very accurate However a slower acceleration from a higher gear can show smoother and more detailed torque and HP curves The acceleration should take approximately 6 to 12 seconds Second gear is generally a good choice Third gear may be needed if the final drive i
141. e 4 Drive gt x in Section 3 5 Search For find Runs Print this Main Scree CtP Print Other Screen A Opening options to Windows Printer Setup open a previously saved test file are discussed in Section 3 5 Unlock Program Options Transfer Program to Another Computer Exit Program Print options let you print the contents of this Main Screen which is a good summary of this current test See Section 3 4 assess ap was aes ef Se eet ese i n t lt AStar gy DimDragfiace DTM20 Mic EDTMDragMA Drag Rac B89 BRP A 1 23PM C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 76 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Figure 3 2 Report Options Menu Basic Report Specs Engine RPM channel al T Pick Individualltems z Front RPM YPE Pick Individual Items Be DS RPM Exh Temp 3 1 Reports Click on the Report menu command at the Main Screen to be presented with the Report Options Menu shown in Figure 3 2 The inputs in this menu are described below Time RPM Distance Report i J Distaric Driven wheel RPM What to Report Just Run 1 Drive whl or Dryshft RPM Vehicle s Filtering None Acceleration rate in Gs Type There are 2 basic types of reports 1 Pick Individual Items 2 Segment Time Analysis They can be picked by clicking on t
142. e Most of the specs in this screen and the 5 additional screens you can get to through the Log Book screen are just spots to record info about this run The Log Book is discussed in detail in Section 2 4 page 29 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 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 35 Vehicle The Vehicle command opens up the Vehicle Specs menu where you can describe the vehicle you are running These specs are critical for calculating information like acceleration rate tire slip clutch converter slip etc from the raw RPM data you are actually recording Many of the specs in the Vehicle menu are critical for accurate calculated results like tire slip MPH acceleration rate etc Be sure to read and understand the Vehicle Specs as discussed in detail in Section 2 6 page 47 Preferences Preferences let you customize the program for your needs and for your computer and printer See Section 2 2 page 21 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 Run Log The Run Log is a chronological list of all tests as they have been downloaded fr
143. e program checks for transmission shifts etc Efficiency Efficiency of the transmission The lower the number the more HP the transmission wastes Click on down arrow button to pick a value or pick Program will estimate if you are not sure 1st 6th Gear Ratio Gear ratio of transmission gear 1 If you are not sure pick an example transmission If your transmission is not listed pick one with the same of gears Engine Specs Engine Size cubic inches Pro Version Only Engine Size in cubic inches which is used to improve accuracy in calculating Torque and HP This information is contained in the Log Book specs under Engine General Notes This value can not be changed in this screen but only in the Log Book General Engine Notes screen Primary Gear Reduction Gear Ratio between engine crankshaft and clutch typically found only on some motorcycles Click on Cle button to calculate from number of gear teeth 50 C Performance Trends Inc 2002 Drag Race 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 Rea
144. e DataMite s memory was full then the Clear Memory will eventually light steady and the Record LED will go off Then hold down the yellow Record button on the DataMite control panel while you momentarily press for about half a second the red Clear Memory key Then release the Record button also You see the Record LED flash once then remain off for about a second This flash pattern repeats The one flash shows the DataMite is displaying the signal for channel 1 or Engine RPM on the other LED When you start the engine you see the Clear Memory LED flash to indicate tach pulses are entering the DataMite The flash rate increases as you blip the throttle and engine RPM increases The Engine RPM signal looks good Note that it takes about 10 engine firings to get the LED to either light or go out Therefore the flash rate may be slower than you expect To check out the front wheel RPM sensor press and release the yellow Record button once holding it down for about half a second Now you see the Record LED flash twice then remain off for about a second This new flash pattern repeats The 2 flashes show the DataMite is displaying the signal for channel 2 or the front wheel RPM If you jack the front wheel off the ground or just drive slowly forward you should see a flash each time a magnet passes the sensor Otherwise rotate the front wheel to place the magnet over the sensor and leave it there The Clear Memory LED lights and remains on Chan
145. e Drag Race 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 code 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 Program Options A screen will appear as shown in Figure 1 1 Figure 1 1 Menu to Unlock Program Options Performance Trends will provide you an FA Unlock Form unlocking code number Type in the unlocking Code to Extend Demo 239235212 code number and click on OK If you typed in Computer Hardware 842897 the number correctly you will be given a Registered Name Joe Smith message that the program is permanently j Cancel unlocked to either the Basic or Pro mode The Registered Code 14666 program will only run on this one computer Enter Unlocking Code MN 20 Help
146. e Humidity can be calculated from either wet and dry bulb temperatures or from dew point and air temperature readings by clicking on the Clc button See Section 2 8 4 page 61 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 air s moisture level 26 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Dew Point deg F The dew point in degrees F of the air at the track 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 60 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
147. e Preferences Help Send Details Run 1 The Main Screen should Ea uns Race amp Vehicle Conditions now look like Figure 4 14 Current File Race Comments _ not in Run Fun 2 62 pm 08 19 2000 new converter 0737 2 new starter new Help This table shows Tq amp HP with a graph of the drag Log z flexplate tires 7 psi values for this run Click and drag end time run fi 320 Quarter Mile Throttle Stop ON the slide bar up or down to view race run on the right side all results Click on a data point d a table of ine RPM Edgewater bracket 8 872 138 58 MPH ste schen dthatidsts val be and a ta ngin ighli i C Senate Po Dnsty Alt 1850 ft Prag Race Runs ecient Tabia and MPH numbers on the Run Data 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 Dip in Engine RPM caused by Throttle Stop Notes The results on the Main Screen are not designed for detailed analysis but just to give a summary of the run and to show how some critical data looks 8 7 6 5 4 3 3 2 1 1 1 1 1 1 1 1 1 1 1 8 7 6 5 4 4 The Grand Am is running a throttle stop which is why there is such a large dip in Engine RPM right after the launch Graphing Data You ve heard the s
148. e correction is needed and the data recorded the DataMite specs the Track Conditions entries of 60 ft ET and MPH and your Vehicle Specs match very well If the program comes up with a large correction factor check these specs If you have not yet entered the Track Conditions of 60 ft ET and MPH you can do it now Then click on Log Book and click on the Update button See Figure 4 14 Note Any changes in 60 ft ET and MPH you make in the Track Conditions Screen are immediately loaded into the Log Book Screen and vice versa If you do make any changes to 60 ft time or ET the program does not automatically update the Corr Factor You must click on the Update button in the Log Book Specs to have this updated Note If you cancel out of the New Test screen during any part of this download procedure you will loose all changes you have made For this reason you may want to just make critical changes from the new test screen like ET and 60 ft time for the Match Time Slip feature to work Then after the data is downloaded make changes in the other screens like Log Book etc Figure 4 14 Messages Concerning Matching Time Slip Feature Keep Correction Determined by DataMite Ea a The program will make a 0 Correction Factor shown in the Log Book as 1 003 to get ks the DataMite measurements to more closely match your time slip data of ET 9 872 sec This is normal and indicates generally good data DataMite Settings and Vehicle Specs
149. e enabled or disabled in this will be presented with new screens to change the menu p42 current settings C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Type Is the type of DataMite you are using either 3 Channel 4 Channel or the DataMite II 30 Channel system You choice here will affect how the Channel Settings grid is displayed and how you can specify various channel s Differences between DataMite and DataMite II are further discusses at the end of this section and in Appendix 3 One major difference between the DataMite and DataMite II is the DataMite II box 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 When you first enter the DataMite specs screen the program asks the question shown in Figure 2 20B This is to help ensure Figure 2 20B Checking DataMite Il Configuration when the program s configuration matches the Entering the DataMite Specs Screen DataMite II box s configuration Check DataMite Il Box Configuration In addition when you make changes in this DataMite screen the program will ask if you want these changes saved sent to the DataMite II box when you exit this screen IF you answer Yes you must hook up the DataMite Il box to your computer You can force these changes to be saved to the DataMite box by clicking on File then Save
150. e 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 24 Figure 3 21 Print Commands under File Options Pro Version Onl Open Engine Save Engine Gan flliesds menus Main Menu Save Engine As Head stock J Log Book etc to Brint Cam none display these Print Print Blank Worksheet Windows Print Setup Viv Dia PotCCs R Ratio Lash Options New Engine A Toren ee lueprinted Yamaha i a i Click on File in some Other Print Options f Figure 3 22 Print Button Other menus have print menu commands or print buttons as shown in Figures 3 21 z and 3 22 Graphs have their own set of Enns Accel RPM sec j s yno wheel RPM print options See Section 3 3 Calcd gear ratio Clutch converter slip Observed flywheel torque Observed flywheel HP Corrected flywheel torque Corrected flywheel HP Other Graph Specs Mine or APM Graph 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
151. e very similar to the name you enter on the registration card Click on Help then About Drag Race DataMite Analyzer at the Main Screen to review your name and code Figure 1 2 Menu to Unlock Program Options FJ Unlock Form Unlocking Program Options Code to Extend Demo 239235212 The Drag Race DataMite Analyzer is equipped Computer Hardware 842897 with copy protection This ensures that Registered Name Joe Smith legitimate users do not have to cover the costs Cancel for unauthorized distribution of the program Registered Code 14666 When you first receive the program it is in demo mode In demo mode you can try either le one 2 y Het the Basic version or the full Professional version for ten days All features are working Click on Help for more info on how you use this screen to unlock this program in demo mode 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
152. eal data and what is a noise spike In cases like this especially if the noise is in channel used to Make Graph Help Cancel Print calculate something else like Engine RPM and Driveshaft RPM to calculate converter or clutch slippage or an accelerometer to calculate vehicle MPH or distance traveled you must try to eliminate the source of the noise Ifthe noise spike is in a channel that is not used to calculate something else the noise spike is not as critical say in an Exhaust Temperature However you must realize that the immediate jump up or down the spike is not real Figure 2 50 shows how even a relatively minor noise spike in the Front Wheel RPM for Meas Tq HP from Accel race run can completely distort the torque and HP curve 71 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 50 Noise Spikes vs Just Noisy jumpy Data Typical Small Noise Spike a couple of data points are significantly different than the data points surrounding them Back File Format View Graph Type Add Test History Log Single Test Help a R el e aa eee eA eek eaves Dyno RPM vs Time 1600 0 i 7 7 i 1 inertiag all Dyno RPM i a 1560 0 1520 0 I 1480 0 1440 0 1 1400 0 1360 0 1320 0 1280 0 1240 0 1200 0 1160 0 1120 0 7 6 Typical noisy or jumpy data shows all data points being quite different than the sur
153. ecords Enter a Title Enter a title for this Data Record a name characters 1 2 Shift Slip would be displaying various clutch inputs plus some User Defined fields You can right click on any of these User Defined input names and the program will ask what name you want to call this input This input will now be called say the 1 2 Shift Slip for all past and future records Note that if you previously called this field Fluid Type and used ratings from A G the data you entered for previous runs of letters from A G will still be displayed Its just that the name will now be 1 2 Shift Slip 33 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 17 User Defined Section of Log Book Back ok Help You can right click on any of User Defined Records i these User Defined input Balast Weight BE User D fined names and the program will ask what name you want to Trans Heater Setting User Defined call this input This input will User Defined now be called say the Trans User Defined User Defined Heater Setting for all past er and future records Note Bie Eines ae eee that if you previously called User Defined User Defined this field Trans Fluid Type User Defined or Defi and used ratings from A G the data you entered for M Help previous runs of letters from En
154. ed Yes to Graph will be graphed when you 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 are 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 can 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 30 History Log at Graph Screen Click on the History Log button or Menu Command to display History Log Datahlite Analvzer v2 0 YAM 925 CF2 1 x Back File Egfnat View Graph Type AddTest iston Log Single Test Hel From the Graph Tt Bee ele Tee poet Trasse Screen 2 additional Corr Tq Corr HP vs RPM vam100 0003 1 Columns are Be displayed 1 Corr HP Click in the am 950 1 Neal Graph column to Corr HP add a Yes or remove a Yes Tests marked Yes to graph are i i graphed if you w Test History _ Op x select Graph Graph Tests Marked Yes Graph Current Test Only Clear erase History Pri
155. eel bioleg el Ei Ee DT eA BlelxTelraverisesca vam100 0003 all Corr Tq Corr HP vs Time vam100 0003 all Cor Tq 20 0 Cor Tg 42 Corr HP i i i i Corr HP 12 i pyam 950 all i i i i p yam 950 all 1 Corr Ta 4 i 4 i H 1 Corr Ta 0 t Corr HP t 1 1 Corr HP 0 er Me 15 0 20 0 Time sec i f 2 N H i X 20 0 Time sec The test you are shifting is identified by printing the name and outline in bright pink yam10 0003 all EEr 2 The number of seconds each test has been shifted is displayed here To switch to a different file for time aligning click on one of the graph data types for that file Click on View for other Shift options P B Sassi A eee s Click here to show the amount you have shifted mat View Graph Type AddTest History Log ale Test Help each test v Zoom Click here to return the graph to its unshifted Full View original condition Note that the program remembers Specify Scales axes the amount of shifting for the displayed lobes until you close the graph screen open the History Log or pick different file s to araph 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 Shif
156. eight 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 engine 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 58 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 38 Calc Gear Ratio 2 8 2 Calc Gear Ratio Calc Gear Ratio This menu is available by clicking on the Gear Ratio Clc button in the Dyno specs menu Inputs Type Type Chain Drive Only Click on this combo box to select from Teeth Engine Gear e Gearbox Only Teeth Dyno Gear e Chain Drive Only ET J O i th 5 k e Primary Ratio amp Chain Drive Teeth Engine Sprocket e Primary Gears amp Chain Drive Teeth Dyno Sprocket For motorcycles with a Primary gear drive between the engine and Note transmission Select Primary Ratio amp Chain Drive as the Type if you For motorcycles with a Primary gear drive know the Primary Ratio Select Primary Gears amp Chain Drive if you 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 Depending on your choice certain inputs will now be enabled Primary Gears Teeth Engine Gear _Hete Can
157. either of the conditions specified The settings in this screen will display all test files with the word BowTie or bowtie or BOWTIE somewhere in the test comments and with a Dry Density Altitude between 1000 and 4000 ft calculated from weather info in the Track Conds menu 105 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 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 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 valve seal example you could just search for 1 condition You add conditions by
158. ements to your 4 6L like heads Vortech cams etc To check how these modifications have changed performance you run another single acceleration to measure torque and HP Figure x x shows the huge improvement you have gained Since both the torque and HP peak now occur at a much higher RPM you will have to move your shift points to a higher RPM also Figure 4 39 Overlay of the 3 Baseline Runs with Modified 4 6L Vortech Run ij DataMite Analyzer v3 2 Vortech Mods CFG Back File Format View GraphType AddTest HistoryLog Single Test Help le eeel Leo ee edele ruvien E57 Corr Tq Corr HP vs RPM vortech mods 1 Corr Tq Corr HP tq hp1 1 Corr Tq Corr HP tq hp3 1 Corr Tq Corr HP tq hp2 1 Corr Tq Corr HP 4 L 2000 4000 5000 6000 700C RPM Conclusions Torque and HP curves from doing accels after adding a Vortech supercharger and other mods showing huge increase 3 Stock runs show good repeatability and power levels very similar to the factory ratings e The DataMite offers features for measuring engine torque and HP similar to a dynamometer without removing the engine from the vehicle This feature is available for both automatic and manual transmission vehicles but is more accurate with manual transmission vehicles e Done correctly the results are both accurate and repeatable e The program can correct for weather conditions if these conditions are accurately entered
159. en wheel RPM Drive whl or Dryshft RPM Data Types Vehicle speed in MPH Acceleration rate in Gs The Data Types you can select are listed and defined in the Report s Calcd trans gear ratio section Table 3 1 on page 79 You are limited to selecting only 8 Data Graph Properties Types for a graph Type Pick Individual Channels Time RPM Distance Time v Other Graph Specs EE Type Filtering smoothing ma Click on the down arrow button to choose either Pick Individual Channels Histogram Starting RPM as show here or several choices of the special graph type of Engine RPM Histogram Histogram Ending RPM Notes Time RPM Distance Graph Data Selected to Graph 8 types max Engine RPM channel Channel 2 Click on the down arrow button to choose either Time or RPM or Distance Channel 3 for the horizontal X axis of the graph RPM is usually chosen for doing Driven wheel RPM torque and HP curves for Accel to Meas Tq HP type of runs What to Report Make Graph Help PEER Print Select what part of the drag race run 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 Note In the Pro version you can also select wh
160. endicies 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 usually 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 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 wheels and driveshafts epoxying the standard magnets supplied to the outside of the inertia wheel works well For
161. endicies Figure 2 4 DataMite Recording Mode DataMite automatically goes to Recording Mode when power comes on Record LED light comes on Record LED is On when Record Push Record button to pause data is being recorded recording data Record LED goes Off when not goes Off Push Record recording button again to resume data LED On Recordin i Flash Setup Mode recording Record LED comes back On DataMite Performance Trends 248 473 9230 LED Flashes when data Clear Memory storage memory is 75 I Caution Pushing full and remains On when Clear Memory button memory is full and no erases all data stored in LED On Memory Full DataMite more data can be Flash Nearly Full recorded 162 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Figure A2 7 Alternate Sources for Ignition Signal for Engine RPM NOTE Attach yellow wire where Figure says Red Clip Chrysler Ford Non Electronic Attach red Attach red clip to ee clip to terminal terminal connected f 3 connected to control vY to distri unit buter Ford Electronic Ford TFI Attach red Attach red clip to clip to terminal Ve green connected f wire s to distri Ry Spy 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 BY Q Permanently clip to TO atta
162. eport Track Conds LogBook DataMite Vehicle Preferences Help particular file Details Run 1 Race amp Vehicle Conditions Race Comments Enter most any 12 44 pm 07714 2000 046 tod weight 3705 1st 10 pairs bad track i anticipated 3rd light very early test comments 1320 Quarter Mile 400 GTO Automatic TH350 here to keep Amen some notes about this Peja Ar nn sea head or test Move the mouse over an area on the screen and a Help description of that item is given here This summary graph shows how RPM and MPH for current run If more than 1 run j in a test they are 2 5 1 3 0 0 1 3 25 38 50 63 7 5 88 10 0 11 3 12 5 graphed also in gray for comparison fi DTMDragMANLO DOC M A Drag Race DataMite KORB 2 52 PM You can click on a point on the graph line and that 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 A summary of critical test settings is given here Click on a setting to change it or to bring up the menu where it can be changed in this case shown the Engine Specs menu Log book Pro version only lets you review various runs in the order you downloaded them and open them up to this main screen Click on Details for full view 11 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions If you want to Open a p
163. equires knowledge of Windows File Manager 3 1 or Windows Explorer 95 98 NT commands Unless you are experienced with Windows commands have someone experienced with Windows assist you to prevent losing data Figure A4 1 Print Test Summary Z DataMite Data Analyzer 2 0 Performance Tre Pa per Re po rts Eile Edit Graph Report TestConds Engine Datalv New get data from Datahlite Ctrl N If you already keep written copies of all drag race runs you perform you fen oe ChrleO already understand this form of backing up data You could continue to Open from History Log do this by simply clicking of File the Print at the Main Screen to print a Save Ctrl S summary of each test Save As Ctrl d Open from Floppy Drive A Drive Disadvantage of Paper Back Ups Save to Floppy Drive A Drive For example say you have accidentally erased a Drag race run File prg indows Printer Setup but have a paper report ofthat data There is no way to re enter the DataMite data You won t be able to recalculate that data correct Uhlock Program Options the data to anew Weather Conditions compare new data to this old Transfer Program to Another Computer data etc Click here to print a Test Summary Copying data to disk with Windows commands 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 b
164. er Chapter 4 Examples 133 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 134 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Example 4 2 Analyzing Drag Race Data Sometimes you may want to just see how the car is running if the engine RPM looks like it should what the exhaust temperature is throughout the run etc This was outlined in Example 4 1 Other times you want to make more detailed analysis of a particular run and compare a particular run to other runs This could be to check the effects of a modification or to see if the car has developed a problem This process will be shown in this example We will look at the Grand Am 1 runs from Example 4 1 compared to 2 runs made prior with a different torque converter First you will want to make Grand Am 1 the baseline run you want to compare to the other runs the current test If you had just downloaded this run it would be the current test If you had run this test several days or months ago you may have to Open it from the Test Library to make it the current test Click on File then Open from all saved tests to open the Grand Am 1 test with the original converter See Figure 4 21 In the Pro version you have 2 other methods of Opening tests click on File then Open from History Log or find the appropriate Run from the Run Log down the left side of the Main Screen and click on it Figure 4 21 Opening a Pas
165. erodynamics or choose Use Specs Below to enable the aerodynamics specs Then you can type in your own numbers to the specs below These specs only effect torque and HP calculated from acceleration tests Drag Coefficient The coefficient of drag Cd is an engineering term used to describe how aerodynamic a vehicle s exterior design is how easily it slices through the wind A low value for the Cd indicates the car is aerodynamic and requires little power from the engine to overcome wind resistance Many automotive manufacturers now publish the vehicle s Cd in advertising since an aerodynamic car is a more fuel efficient car An aerodynamic car is also a faster car If the actual Cd of a particular vehicle can not be found use Table 2 3 to estimate the Cd for different types of vehicles Use Table 2 4 to estimate how much Cd will change from a modification A more complete list is obtained by selecting one of the examples of Body Details Table 2 3 Estimate Drag Coefficient Cd Best Case vehicle 48 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Table 2 4 Estimate How Modifications Affect Cd and Cl lift coefficient Open Side Windows vsclosed 02 Open T Top amp Side Windows ET es 4 Flat Air Dam width of vehicle 2 TEE 8 Flat Air Dam width of vehicle 12 Flat Air Dam width of vehicle 1 Flat Spoiler width of vehicle 3 2 Flat Spoiler width of vehicle 4 Flat Sp
166. ersion Only The DataMite s data can be analyzed in Performance Trends suspension analysis programs like Suspension Analyzer or our smaller 4 Link Calculator At this time the only data actually analyzed in these programs is Shock Travel where these programs determine the dive squat roll and pitch of the vehicle based on shock travel data and suspension geometry and measurements Figure 3 33 Send Options Click on Send at the top of the Main A Drag Race DataMite v3 2 Performance Trends gto0202 CFG File Edit Graph Report TrackConds LogBook DataMite Vehicle Preferences Help Senf Screen to send Details Run 1 Send to 4 Link Calculator shock data to ma Send to Suspension Analyzer another 51 Runs Race amp Vehicle Conditions Hace Comments Performance Trends un 2 14 44 pm 05 11 2002 First run of the year New motor Help Click on one of the Tabs here to change to a different run prog ram If the dgewater program is not ind time run 1 42 116 08 MPH currently running it will be started Run Data automatically Point_ Seconds Enaine Vehicle 41 To send data you first must make sure the DataMite has Figure 3 34 Typical Shock Travel Sensor the required shock travel data and it has the correct calibration following these steps 1 Install shock travel sensors See Figure 3 34 2 Assign the appropriate DataMite channels as Shock Travel sensors and do the appropriate calibration
167. es Funny Car or Top Dragster street performance and motorcycles User friendly Windows interface compatible with Windows 95 98 Me 2000 and NT Can print results using most any Windows compatible printer many times in 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 time or distance Graphing features include cursor to pin point values overlaying runs zooming and shifting and more Automatic finding and time aligning of runs Record and save basic information about each run like weather ET MPH comments etc Added Features for Pro Version e A full Log Book is added so you can record all types of details about each run like opponent your lane reaction time segment times tire pressure clutch or converter specs shock and spring settings and much more Record engine specs like bore stroke head descriptions cam descriptions etc Additional test conditions like fuel coolant head temp etc Customize printed reports and especially graphs You can include comments for each engine graphed Compare more graphs on the screen Write ASCII files for importing data into other computer programs Filter find past tests based on certain criteria like ET Track or Event dates etc e History Log keeps a running log of tests you have recently started new run graphed or reported Please read Sections 1 2 Bef
168. es js sent in several program will fill in the Test Time Details packets for each and Date based on the computer s RE channel The more current time and date This can be Read Com Port data that was changed later by clicking on the i Run 2 z recorded the longer Test Time Date at the Main 2nd memo oe the downloading Screen Edgewater b Getting Engine RPM ga takes 12800 byt Dy Dnsty All on Packet number 17 Click here to stop Run Data the downloading process and abort starting a New Test The program will now start to read the DataMite data as shown in Figure 4 12 After the data is read from the DataMite the program performs 2 Run a 3 3 2 1 1 1 1 1 1 126 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 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 drag race run run based on pre programmed criteria of what a drag race run looks like Figure 4 13 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 can also cause problems when the program tries to find the beginning and end of
169. es tire diameters are constant Clutch slip in It is critical you have the Final Drive and Gear Ratios in the slip Vehicle Specs correct for Clutch Slip to be accurate Tire Growth Tire Grwth Is the tire growth based on Driven RPM Drive RPM and the tire diameters and final drive ratio if necessary This is similar but opposite of Tire Slip Distance from Distance Is distance traveled from the start of the run or data set calculated from Driven Start ft RPM or an Accelerometer Lap Number The sequential Lap Number more useful for road racing data sets 79 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Transmission Is the transmission gear the analysis believes the transmission is in based on Gear the calculated Gear Ratio and the Trans Gear Ratios entered in the Vehicle Specs The time from beginning to end of this data set Drag Race Runs include time before the start and some time after the end of the run so this time will be much larger than the actual ET of the run This data is more useful for road racing data sets Observed Obs Tq Is the observed uncorrected torque the program estimates to be at the flywheel torque flywheel under steady state non accelerating conditions This is estimated to be similar to what an engine dyno would measure The program makes estimates of driveline and inertia losses to arrive at this number Is the observed uncorrected horsepower calculated from Observe
170. for comparison e Add Test lets you pick any test from the Test Library to compare to the Current test results This test now becomes the Last test results graphed ack File Format View Graph Type Add Test Help Add Last Test tkrause yam 950 cfg Add New Test 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 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 examp
171. formance Trends Inc CHEYELL File Options Measurements Zoom Table Comments Help About Return to DataMite Instnt Cntr Length 29 7 Instnt Cntr Ht 10 5 Anti Squat 233 4 Options for stepping forward backward running slower faster single step continuous etc are available in Seconds 8 700 this section Pinion Angle 3 38 Trans Yoke Movement 04 Driveshaft Angle 1 07 Ep9 PPM 57022 Bonom Bracket axes elf an ON fixe e on je fr il Tips Click on Options then Show All Instant Centers see where all possible Instant Centers are located Click on a bracket hole to move the linkage to that hole Holes Used Rear axle Front chassis Show ane rea ER RE EITA 7 m ear Spring ront En ata Point from co TopiBrackot E 0 218 s 4 23 5 13 Yes Compression in Rise in DataMite File Single Faster Slower If you click on the Send button in the DataMite program and either the Suspension Analyzer or 4 Link Calculator can not be found where it should be a File Seek screen will appear Here you can choose which disk drive to search for the appropriate file usually the C drive The screen will display all files which match the name of these files When done searching double click on Figure 3 40 Seeking a Vehicle File the file you want to use The DataMite program will then remember this id and you should not have to do he again Select Drive to Search for 4LINK EXE
172. g rate of the other channels say 25 or 50 times a second Timer channels are the same as switch channels except they are recorded to the nearest 001 second or even finer They can be useful for measuring the time between throttle stop going on and coming off or from trans brake switch being released to delay box being activated etc At the time of printing this manual these channels have not been developed in the software Important Some channel names have special meaning to the 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 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 Also see Section 3 8 Send Data for additional special Calibration names to denote special analysis of a channel Menu Commands Back Simply closes this menu and returns you to the Main Screen If you made changes to
173. gain the best thing you can do to improve your vehicle s repeatability is to do your prep and staging procedure 153 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies exactly the same from run to run and to stop tweaking and making adjustments Adjustments are obviously important for making improvements but not for repeatability To Improve Accuracy There are many types of calculations being performed by the Drag Race DataMite Analyzer Their accuracy depends on the following e tis critical that the Vehicle Specs in the program be accurate This includes things like gear ratios vehicle weight tire size etc e In the Pro version additional corrections can be made based on the time slip results of 60 ft time and ET called Match Time Slip See page xxx If you consistently enter the actual time slip results into the Track Conditions or Log Book screen the program can fine tune some calculations for better accuracy 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 Conditions menu See Section 2 3 An error here will affect accuracy and repeatability Major Assumptions The DataMite Analyzer program makes several simplifying assumptions about the vehicle which are listed below Other approximations and assumptions exist as identified in Section 1 3 A
174. ge will appear saying if the port is working correctly or not 165 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 166 DataMite Not Reading Data Signals If the DataMite does go into Setup Mode do the signals look as described on page 154 or in the beginning of Example 4 1 If the Engine RPM signal is not coming through e Yellow ignition wire has a break in the harness Black ground wire in harness is not well grounded You are not hooked to the correct terminal or wire in the ignition system to record RPM Fault in the Inductive Pickup or Inductive Pickup harness wiring Fault in DataMite module 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 Black ground wire in harness is not well grounded A ground usually does not affect wheel RPM sensors e Fault in DataMite module DataMite Reading Data Signals but Not Sending to Computer Be sure you take the DataMite out of Setup Mode and it goes into Record mode Record data for at least 1 minute with at least the engine running to create engine RPM data Follow the procedure in Example 4 1 for downloading the data If during this downloading process you receive the Figure A3 2 Error Message When Not Reading DataMite Data message shown in Figure Are you
175. ge 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 78 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Report Types 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 Engine RPM Engine RPM Engine speed in revolutions per minute as recorded by channel 1 on the DataMite Individual User These are the individual raw data channels which the DataMite of DataMite II is Channels Specified recording These are listed in the DataMite Specs calibration table as shown in Name Section 2 5 The names for these channels are what you have entered into the Calibration Table Driven Wheel Driven RPM RPM of the driven wheel front wheel on a rear wheel drive car Because this RPM is from an unpowered wheel there should be little or no tire slip Therefore this RPM is very useful for calculating things like MPH distance traveled acceleration rate etc If you have an accelerome
176. gether You could start a new folder for each event or a folder for each car if you use the DataMite on more than 1 car or a folder for each type of event like Test and Tune NHRA Competition and IHRA Competition You can come up with most any way you want to organize your tests 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 on Add New you could enter a new folder name like Year 2002 This folder will be used for all tests you download for the 2002 season 6 As you should do for most all drag race runs you choose the Data Type of Drag Race Runs Meas Tq HP from Accel is a special type of test where you do a full power acceleration in trans gear to obtain an engine power curve See Example 4 3 Custom is used for anything else like troubleshooting in the shop on jacks The New Test screen should now look like Figure 4 11 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 Figure 4 12 Main Screen While Downloading DataMite Data specs have not been entered the program will warn you and ask ARDELL ee nie The DataMite data you for it at that time The File Edit Graph Repot Track Conds LogBook DataMite Vehicle referenc
177. gure 2 40 Calc Pri Gear Reduction This calculation is available from the Vehicle Specs menu and allows you to estimate a vehicle s frontal area Calc Pri Gear Reduction Inputs Teeth Engine Gear Eisai cae Gea Is the number of gear teeth on the gear on the engine crankshaft Teeth Clutch Gear Use Calc Value Help Cancel Print Teeth Clutch Gear Is the number of gear teeth on the gear on the clutch input shaft 63 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 64 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 9 New Test Menu get data from DataMite The New Test command is available by clicking on File at the top left of the Main Screen then selecting New You will then be presented with the screen shown in Figure 2 44 The New Test command is the only way to get a recorded data set drag race run from the DataMite See Example 4 1 and 4 2 for more details on the New Test menu Figure 2 44 New Test Menu When starting a New 6 Critical specs for the new test are listed here at the top Test it is usually best Click here to start a New Test based on these settings to first Open a previous and start downloading data from the DataMite test which is similar to the New Test you will ia Starting a New Test be running similar Start New Test Cancel don t start new test Current Readings Help Vehicle specs similar
178. h Spk Plug Remarks PSI d looks oily 0 O GN Cop tes CS UGNI H Engine Comments Enter the cranking compression for Cylinder 1 p Checked lash this run set to 020 Int BR 022 exhaust Still running Comp Cam 3 At the time of printing this manual the RPMS amp Revs section is available for you to make entries but the program is not keeping totaling up time or runs for different parts 3l C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 13 Other Checks in Engine Details Back ok File Help Fuel Metering Mechanical Checks Other Checks RPMS amp Revs Nitrous Oxide Ignition Type of System _ No Niros F Spark Plugs ui 7 Bottle Pres Start End fists fan isng 3 Time On Description remarks Temperatures and Pressures Stage 1 a Coolant Temperature at Start Stage 2 Iz aaa Oil Temperature at Start Stage3 ea ees Trans Temperature at Start l Throttle Stop Oil Pressure aaiim cr a F Supercharger Turbocharger i Engine Comments M Help 400 CID bored 060 Is the temperature of the engine coolant at the Checked lash this run set to 020 Int launch If this is recorded by the DataMite this is 022 exhaust loaded by the program automatically p xx Stil running Comp Cam 3 Figure 2 14 General Engine Description Screen Click on File then e New to blank out thi
179. hat it may be difficult to see anything other than a light You can disconnect the thermocouple and see that the flash rate or LED brightness changes indicating it is working DataMite Software Setup Start the program by clicking on Start then Programs then Perf Trends then Drag Race DataMite Analyzer V2 0 Or you can click on the Drag Race DataMite Icon on your desktop Each time you start the Drag Race 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 File Edit Graph Report Track Conds LogBook DataMite Vehicle Preference Details 151 Runs Race amp Vehicle Conditions Rage Comments Run 1 12 44 pm 07 14 2000 BNgd weide3705 1st 10 pairs bad track lt Help Click here to change or Ma A uae Mie Te Wa ETE smeet Click on Vehicle to set up Vehicle st time tun 7 533 111 94 MPH Ee Secs oars by kip Specs to match your vehicle Diy Dnsty Alt 38758 Drag Race Runs Fe reece measurements and settings 69 GTO is the current drag race run Vehicle a sia E Sa dela ed el enge ee Click on DataMite to set up the oS Set Soe et este ae rt tt DataMite Specs to match your sensors for particular channels These current results are from the last run you were working with This is identified by the name in square brackets at the top of the screen in this case 69 GTO
180. he Record LED will flash twice quickly every second or so This shows it is now displaying channel 2 which is the sensor or connector with white shrink tubing The Clear Memory LED should light when the magnet passes the sensor for Channel 2 If it does not adjust the sensor closer to the magnets Be sure the Clear Memory lights for all magnets Check the other channels following the pattern described above for checking Channel 2 Figure 2 3 DataMite Setup Mode for Checking Channels Power up DataMite and wait for Record LED to light steady Push and release Clear Memory button while holding Record Button down to put into Setup Mode Setup Mode starts with displaying Channel 1 engine RPM Record Setup Mode starts with displaying channel 1 engine RPM Push Record button to Channel 2 and LED On R di i H Flash Selup Made again to display Channel 3 etc L lt DataMite Performance Trends 248 473 9230 Clear Memory LED flashes either once twice 3 times etc quickly to show which channel is being checked LED flashes as signal comes into DataMite W hen engine running and on Channel 1 LED should flash For RPM Setup Mode and go back sensors LED lights as i LED On Memory Full R rding M magnet passes sensor or Flash Nearly Full to Recording Mode brightens or dims with analog sensors Push Clear Memory button to bring out of 161 C Performance Trends Inc 2002 Drag Race DataMite Analyzer App
181. he down arrow key of this combo box If you select Segment Time Analysis several options in this menu may be enabled or disabled dimmed to gray and you can not change them because they are not applicable to that report type If you selected the Pick Individual Items l Range of Data Starting Distance ft Ending Distance ft Distance Increment ft Use MM SS_SS Time Include Averages Start Average At Stop Average At Make Report Help Cancel To obtain comparison reports of 2 or Calcd trans gear ratio Tire slip Clutch conrerter slip Tire growth Distance from start in ft Notes Data to Report 6 types max Engine RPM channel Front RPM DS RPM Exh Temp An example of Multiple Tests comparing 3 Segment Analysis tests is shown later in this section ore files click on History Log or Multiple Tests at the top of the upcoming Report Screen report type click on the Data Types in the top right section to select or deselect if it has already been selected that Data Type for reporting Time RPM Distance Report Click on the down arrow button to choose either Time RPM or Distance for the various rows of the report Your choice will appear in the left column of the report RPM is usually only chosen for doing torque and HP curves for Accel to Meas Tq HP type of runs What to Report Select what part of the drag race
182. hin a couple percent You can click on Graph Type at the top of the Graph Screen and set Filtering to Light This smoothes out the data some of of variation but you know you still can have confidence in the data because it looked so good with Filtering set to None Figure 4 17 also shows that Exhaust Temp looks very steady with a slow steady rise during the run This is a good indication that the fuel system is operating correctly and the engine is basically running well no major misfires The second graph of 129 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples C v s gc gt zz _ gt oz c J ss _ R _ SSE sss Figure 4 17 shows the effect of changing Filtering smoothing from None to Light The graph lines are now much smoother and easier to read Since the data quality ofthe raw recorded RPMs generally looks very good you can have good confidence in the calculated results like tire slip distance traveled etc Most ofthese calculated outputs appear farther down the list of Data Types in the Graph Menu Click on Graph Type at the top ofthe Graph Screen and select to graph Engine RPM a good reference for knowing where you are in the test run Accel Gs MPH Distance and Converter Slip With these changes click on Make Graph button and you will obtain a graph shown in Figure 4 18 Figure 4 18 also shows how you can zoom in on a particular area or bring up the vertical cursor line to pin
183. ich run to graph by entering the Run number in the History Log See Section 321 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 86 C Performance Trends Inc 2000 Figure 3 14 Examples of Various Levels of Filtering t DataMite Analyzer v2 0 YAM 1000 CFG x Back File Format View Graph Type AddTest HistoryLog Multiple Tests Help fest el gt lellei beled stl Fuview setscaeg vam100 0003 1 i i i i i i i 40 1 h 1 1 1 1 1 4 6000 7000 8000 3000 10000 11000 12000 13000 14000 15000 RPM ta DataMite Analyzer 2 0 YAM 1000 CFG x Back File Format View GraphType AddTest HistoryLog Multiple Tests Help dde eeel eo Tee belo st ravew fse soned Corr Tq Corr HP vs RPM aT Berat 7 i 7 0 i 1 L 1 1 1 1 4 9000 10000 11000 12000 13000 14000 15000 RPM 4 0 7
184. if Accel Gs 000 000 5 000 1 018 523 L 743 767 1 108 743 714 836 5 786 951 606 b 743 920 706 i 1 239 144 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Another useful type of report is the Segment Time Analysis Choose Segment Time Analysis for the Type in the Report Options screen instead of Pick Individual Items You will obtain reports like that shown in Figure 4 35 for either the single current test or for comparison to Multiple tests picked from the History Log Figure 4 35 Reports Showing Segment Time Analysis Segment A Drag Race DataMite v3 2 Performance Trends grand am 1 CFG Analysis Report B Back Print Report Types File HistoryLog Single Test Multiple Tests Help F1 for current test 1 ype Drag Race Runs 6 02 pm 08 19 2000 E T 9 872 Event 2nd time run Comments Trk Len pa Quarter Mile Dnsty Altitude 1533 MPH 138 58 Run 2 onl y The Data i Run 1 Ait Temp 74 60 ft 1 449 Desc Edgewater bracket race types shown are Pce poor Elapsed Times Engine RPM Vehicle MPH set by the program and can 5054 0 139 not be changed 5557 89 6 f bv the user 5965 113 3 6275 128 3 6596 138 0 A Drag Race DataMite v3 2 Performance Trends grand am 1 CFG BEE B gt Back Print Report Types File History Log Single Test Multiple Tests Help F1 8 x Segmen t Type Drag Race Runs 6 02 pm 08 19 2000 E T 9 872 Event 2nd time run i E Comments
185. ile and then Print Color Click on File to display the 3 DataMite Analyzer v2 2 HEEDOS CFG print menu options ormat View Graph Type Add Test History Log Single Te z Click here to print the graph in Add Test to Graph color solid lines Print Color solid lines Click here to print the graph in Print Black amp White dashed lines black amp white various styles Windows Print Options of dashed and solid lines Using Dot Matrix Printer v Not Using Dot Matrix Printer Click here change the printer or printer driver page 2410 Exit Qa orientation etc Select between these 2 options for your printer type If you are getting a break in the border around a printed graph try the other option R rs ee ee The Options Printer sometimes called il Advanced button currently HP LaserJet Ill on LPT1 displays a screen for Specific Printer selecting various printing and color HP LaserJet Ill on LPT1 options Try Orientation Paper changing these A Portrait Size Letter 8 1 2 x 11 in settings to correct certain print Landscape Source problems 90 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Figure 3 13 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
186. ile 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 Drag Race DataMite Analyzer program Open the file you want to copy so it is the current test file Then click on File at the top ofthe 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 95 and 98 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 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 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 backi
187. individual menus 13 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 1 Main Screen Test Data Inputs The Main Screen is shown in Figure 2 4 and shows a summary of a run It is not meant for detailed analysis or comparisons which can be done with Graphs or Reports The Main Screen is made up of 6 basic sections as shown in Figure 2 4 These are discussed in the next 6 sections The rest of this section gives an overview of how the Main Screen is organized Figure 2 4 Main Screen Pro version 1 Click on these 5 Menu Commands of File Graph etc Tabs to switch These give you all the options to operate the between the program and change test data different runs of FA Diag Race DataMite v3 2 Performance Trends DETROIT4 CFG this particular file Details Run 1 p A Rs 2 Test amp Engine Eu Race amp Vehicle Conditions Conditions not in Run 10 07 am 05 25 2000 p summarizes Log lan Michigan 1320 Quarter Mile ae some critical test PRACTICE 1 11 872 124 9 MPH on specs and Densty Alt 1343 ft includes a comments section to keep notes about this test 3 This Summary Graph shows Tq and HP for current run for this test file If you click on a graph line as pointed out here that data point will be displayed and highlighted in the Test Data grid 4
188. ing the Drag Race DataMite installation r Engine Performance Programs Install This Program View Engine Analyzer Brochure Engine Analyzer Plus Brochure Engine Analyzer Pro Brochure m Engine Building Tools Install This Program Comp Ratio Calculator Brochure Cam Analyzer Brochure Port Flow Analyzer Brochure Swirl Meter Brochure Tumble Fixture Fuel Inj Calculato Drag Racing Tools Install This Program View Drag Racing Analyzer Brochure Drag Race Analyzer Pro Brochure 4 Link Calculator Brochure Practice Tree Brochure olx m Data Logger Programs Install This Program View Dyno DataMite Brochure m Circle Track Road Race Tools Install This Program View Roll Center Calculator Brochure Circle Track Analyzer Brochure Suspension Analyzer Brochure Click heret to stai Brochure Brochure Brochure installing this program il purc ram cl pro installation sheet Dr can install a on of our ather i ren here as demos to see their features directly This is done by clicking on Start then Run then Browse In the Browse window you will look for your CD rom drive the drive with the Drag Race 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 includes the individual product installation programs including DR DT
189. into the program s Track Conditions menu e The graph features of the Pro version allow up to 4 and more different runs to be graphed together for comparison 151 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendices 152 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendices Appendix 1 Accuracy and Assumptions Repeatability The difference between repeatability and accuracy is Figu re A1 1 a concept you may not Repeatable Measurements Accurate Measurements understand Graphically produce the same readings test produce a reading which is close accuracy and repeatabilityare after test but the reading may to the true Slip reading which is a shown in Figure A 1 1 not be the true Slip reading other accurate data logger Think ofthe data logger as an testers would get archer which is trying to hit the bulls eye or the converter s true Slip through the traps Let s say the true converter slip was 8 but one data logger always comes up with values between 4 5 and 5 slip This data logger is not very accurate but is very repeatable only a 0 5 slip spread in the results Another data logger comes up with measurements which vary from 5 to 11 Slip which average out to the true 8 Slip This data logger with the 6 spread in data is not nearly as repeatable as the first but is more accurate Ideally you want both a repeatable and accurate data logger but this is n
190. ion 3 7 From there you can review a summary of the last 25 to 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 the last couple of weeks 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 Drive Save to Floppy Drive The Open command provides a simple 1 click command to open a standard Windows File Open menu displaying the contents of the disk in the Floppy Drive The Save command provides a simple 1 click command to save the current test file to the disk in the Floppy Drive to the same name as is currently being used These commands provides 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 find Runs Pro Version Only This option simply explains how t
191. is is for the last drag race run 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 The name of the test is shown at the top in square brackets 69 GTO CFG shown in Figure 1 3 Figure 1 3 Main Screen Pro Version A Drag Race DataMite v3 2 Performance Trends 69 GTO CFG File Edit Graph Report Track Conds LogBook DataMite Vehicle Preferences Help New get data from Dataklite Ctrl N Run 1 Open from all saved tests Ctri 0 Open from History Log Race Comments Bown Cres 7 14 2000 046 rod weight 3705 1st 10 pairs bad track Help Click on one of the Tabs anticipated 3rd light very early Save As 400 GTO Automatic TH350 Open from Floppy Drive amp Drive Save to Floppy Drive A Drive Search For find Runs here to change to a different run Print this Main Screen Print Other Screens Windows Printer Setup Unlock Program Options Transfer Program to Another Computer Exit Program Ctrl x 00 ho O Ry ol oo N O 6 3 7 5 88 10 0 11 3 125 Name of current vehicle you are working with Menu Commands Click on File then choose from different Save or Open options Click on Unlock Program Options to obtain codes to give to Performance Trends to permanently unlock the program take out of the 10 day demo mode
192. k on a large s of tests Click List All Files by File Name men eae List by File Name include Run Date name to display all here and a different D List by Run Date include File Name the tests saved list of Test Files will be Files Not Fitered all files listed prise Ihat Folder displayed The name Name Se Folder was called Dpen Filter find Advanced ilespie Delete _Add Track in the DOS Cancel Help Delete Right click in list above for more Folder Options version but can be changed in the u Su _ Preferences menu to Click here to most any word delete the chosen Test f Click here to bring up Click here to bring up the Filter Options menu standard Windows File Open fit certain criteria See Section 3 6 in most any folder directory isk drive Click here to bring up on screen help NG diek Eve Click here to close the Test Library with No changes without opening a test 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 run date This option can save you time looking for a particular test file Pro Version Only 101 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 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 additi
193. l Area Calc Frontal Area sq ft This calculation is available from the Vehicle Specs menu and allows you to estimate a vehicle s frontal area Calc Frontal Area sq ft Vehicle Dimensions Track Width inches Track Wath mches Is the distance from the center of one front tire to the center of the other Roof Height inches front tire This value is initially set to the Rear Track Width in the Body and Axle specs menu but can be changed to most anything you want Note This calculation is only an approximation of Frontal Area based on 2 easily obtained Measurements For most situations MPH less 2 than 150 Frontal Area will not have a large effect Roof H elg ht inches on performance and this approximation is adequate The distance in inches from the ground to highest portion of the roof or vehicle in inches which extends nearly the full width of the vehicle Use Calc Value Help Cancel Print For example for a truck with a roll bar behind the cab measure to the top 62 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions See ZZ ZZ ZZ ZZ ZZ ZZ a hm mm FF NUN Tr of the roll bar but not to the top of one of the spot lights mounted on the bar However if so many lights are mounted on the bar that they are nearly continuous for the full width of the vehicle it may be more accurate to then measure to the top of the spot lights 2 8 7 Primary Gear Reduction Fi
194. le MPH Engine RPM Tire Slip and Converter Slip for 6 different drag race runs 88 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Figure 3 10 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 x DataMite Analyze v3 2 gto0201 CFG Back File f Click on Add gto0201 1 Test to pick a Engine RPM test t dd Front Wheel RPM RPM EP new test to a Driveshaft RPM RPM the graph to Accel G s x 1000 the History Log gto0202 1 from the entire Test Library Choose a Graph option from the menu bar to close the History Log and graph the tests identified by the gillespie accel qto0201 cfg 05 11 2002 Drag Race Runs 11 483 116 23 menu option you gillespie accel gto0203 cfg GTO0203 05 11 2002 Drag Race Runs k X pick gillespie accel gto0202 cfg GT00202 05 11 2002 Drag Race Runs gillespie accel broged3 cfg broged3 Custom no junk junk003 cfg JUNKOOS 04 29 2002 Custom no shaunuk2 new002 cfg 358196 05 07 2002 292 73 5500 shaunuk2 newO01 chq 358196 05 07 2002 292 63 5500 french ve025109 cfa vss025 11 17 2001 423 97 6100 Click in Graph column to select or de select tests for Graphing Slide button right for more History info Click and drag slide bar to Click in this column f display entire History Log to
195. lets you check the r grand am edge 2 1 combined weather ENE RAMAL conditions or any Citch Slip x 10 istarce Test Comments you BEE EEE entered which could r grand am edge 1 1 Engine RPM x 1 explain differences cltch Slip x 10 in the runs Distance Show Adjusted Timing v Show Original Timing Reset Timing to Original Timing Timing Shift Size gt f Turn Cursor On Correction Factors Test Comments al 1 r 7 m Time sec Test Comments for the 3 runs Correction Factors are is Analysis Report Ei actually the Density Test File grand am 1 1 i ter 0737 2 tarter flexplate tires 7 psi Altitudes or Dry Throttle Stop ON new starter new Nexplate tres 7 Psi Density Altitudes for the 3 runs selectable in the Preferences Section Tes cg 2nd run from Edgewater Test File grand am Edge 1 1 1st run from Edgewater DataMite Analyzer Correction Factors for Current Tests Dry Dens Altitude 1850 ft grandam 1 Dry Dens Altitude 1677 ft grandamEdge2 1 Dry Dens Altitude 1882 ft grand amEdge 1 1 Cancel Print 141 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 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 31 The program puts a Yes in the Graph column All tests marked Yes in the
196. lity Click on Add Test to add a test Engine RPM channel for com parison Front Wheel Driveshaft is DataMite Analyzer v3 2 Grand Am 1 CFa Exh Temp Back File Format View Graph Type Add Test History Log Multiple Tests Help i Driven wheel RPM ny SSN NWS SS SE Yehicle speed in MPH Acceleration rate in Gs l Other Graph Properties Type Pick Individual Channels Time RPM Distance Tine v What to Graph Just Run 1 x Filtering smoothing None 7 Histogram RPM Increment 000 z Histogram Starting RPM Histogram Ending RPM Notes i i i i H Data Selected to Graph 8 types max Engine RPM channel Front wheel Driveshaft Distance from start in ft Time sec ne Now add the test you want to compare this test to by clicking on Add Test in the Graph Screen See Figure 4 23 You will obtain a screen similar to Figure 4 21 on the previous page Select the Grand Am Edge test which had been run at a different track Edgewater with the old converter You should now obtain a screen similar to that shown in Figure 4 24 The Grand Am Edge 1 has nothing that looks like a noise spike so its data quality looks very good also Figure 4 24 shows both runs to look quite similar but the Engine RPM for Grand Am 1 the more recent test with the new converter shows a lower Engine RPM through most of the run To check if the converter is actually tighter click
197. lly Be sure you read the Notes on Weather Conditions at the end of this section page 27 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 Radio TV Report with Dew Pt Uncorr Baro with Rel Hum Uncorr Baro with Dew Pt Altimeter with Rel Hum Altimeter with Dew Pt 25 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions sl If you change the Method the 4 inputs specs in the Weather section are changed 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 track 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 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 Barometric Pressure in inches of Mercury you will hear from most any TV or
198. ls before clicking on Keep Changes Set a limit to 0 to have it 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 Options for IAI Drag Race DataMite v3 2 Performance Trends brogedi CFG configuring the File r me iw Current Readings De Close back Options Trace Recorder Help trace recorder 126 F Trace Recorder Dats Trace Recorder Speed Show Trace Recorder 3000 EngRPM Front RPM 2000 10000 2000 Trace Recorder time graph for 2 selected channels Buttons to pause or continue the trace or turn it Tim Divisions are 5 seconds Halt Cont Off 54 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Trace Recorder Data Figure 2 35 Setting Options Click on Trace Recorder then Trace Recorder Data at the top of the Current for Trace Recorder Readings screen to be presented with the screen shown in Figure 2 35 This works the same as the other screens for setting which data to graph and what Trace Recorder 1 scales to use One difference here is both data types are graphed on the same Channel The numbers on the graph for the Y axis are for Trace Recorder 1 Range User Specified User Specified Min User Specified Max
199. m to appear as typical dyno curves and to be repeatable from run to run Click on the Make Graph button at the lower left to produce the graph shown in Figure 4 38 You are probably impressed at how much this looks like a dyno graph one the could cost hundreds of dollars and many hours of time to produce on an engine dyno or chassis dyno 149 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 38 Graph Data Menu to Create Corr Tq and HP vs RPM Graph Distance from start in ft Lap or Run Transmission gear Lap time in seconds Observed flywheel torque i DataMite Analyzer v3 2 TQ HP1 CFG Observed flywheel HP Back File Format View Graph Type AddTest History Log Single Test Help Corrected flywheel torque Corrected flywheel HP Other Graph Properties Type Pick Individual Channels Time RPM Distance RPM v WhattoGraph yusthunti Filtering smoothing Medum 7 Histogram RPM Increment 000 E Histogram Starting RPM 2000 Histogram Ending RPM 8000 Notes Data Selected to Graph 8 types max Corrected flywheel torque Corrected flywheel HP Make Graph Help Cancel Print 1200 1800 2400 3000 3600 4200 4800 5400 6000 660C RPM Table 4 1 Comparison of DataMite Results with Factory Ratin Factory Rating From Figure 4 37 using cursor Corr Flywheel Torque 285 ft lbs 3500 RPM 279 6 ft lbs 3450 Corr Flywheel HP
200. n t know an input say front tire diameter you can click on the Clc button by the it to bring up a calculation menu There you can enter the tire specs say for a P225 75 15 or something similar to come up with the correct diameter You can also pick one of the preloaded example transmissions or click on File then Open Example Vehicle to see what the specs for other typical vehicles look like With all the Vehicle specs set to match your vehicle click on File then Save As to save these changes to some vehicle name of your choosing something like Grand Am Then click on Back to close the Vehicle Specs menu and return to the New Test screen Since you saved these specs you will not have to enter them again If they are not already loaded for some new run you can just go into the Vehicle Specs screen click on File then Open Vehicle and pick the Grand Am vehicle you have just saved Track Conditions are also important records of the run and contain things like ET MPH Weather Specs length of track Quarter or Eighth mile or some other distance etc Click on the Track Conds button in the New Test screen so you can enter your time slip results of 1 449 9 878 and 138 58 for 60 ft ET and MPH 124 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 10 Filling in Track Conds Menu g g Select this Type for all your standard drag race runs Track Race Conditions Back Help Type of Test
201. n For example say the last run downloaded from the DataMite box was Run 245 and you called this test Grand Am 0 cfg The Run for a new test would be 246 If you change the Run for Grand Am 0 to Run 1 like at the start of a particular event to Run 1 in the Log Book then the next Run would be 2 3 Track and Event Pro version only is a description of the track or event You can type in most any name you want or click on the down arrow button at the right of the name to pick from a list of previous Track and Event descriptions you have already entered If possible it is best to use a name from the list of your previous entries Then it is easier to find tests because the names are more consistent between different test files 125 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples 4 Run Description Pro version only is much like Figure 4 11 New Test Screen for Starting This New Test Track and Event above It Click Here to Start the New Test is a description of the run like time trials test and is Starting a New Test tune 3m round etc You Start New Test Cancel don t start new test Current Readings Help can type in most any name File Name for Track Event Edgewater bracket race 7 roder for Add Type of Test you want or click on the New Test Run tt Run Desenption New Test down arrow button at the Grand Am 1 fist time run 7 Year 2002 Drag Race Runs right ofthe name to pick
202. n 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 or NM Newton Meters metric and Horsepower and Kw kilowatts metric 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 22 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Match Time Slip Pro Version Only The DataMite can adjust your recorded data to be more accurate based on the ET and 60 ft times
203. n comes on steady stops flashing press the yellow Record button to pause the DataMite stop its recording The Record LED will go out You could omit the step of pressing the Clear Memory button which would keep any data already recorded by the DataMite but this would not be recommended for beginners 2 Start the engine and drive to the staging lanes Do your burnout 3 Start the DataMite recording data by being sure power is on and pressing the Record button This will light the Record LED by the yellow button You may just want to press the red Clear Memory button on the DataMite s control panel to clear out any previously recorded data There is a slightly longer delay between pressing a button and starting to record data pressing the Clear Memory button but typically this is only 2 3 seconds 4 Stage your vehicle and make your run 5 Pass through the Traps at the end of the run 6 After you are through the traps and slowed to a safe speed press the Record button to turn Off the Record LED This pauses the DataMite from recording any more data 7 Drive back to the pits and download the data recorded by the DataMite to the DataMite program in your computer ican 4 7 The New Test Screen with Tip Message Downloading Data ET 6 Critical Once you have recorded a test with gt Pe Trsch Event Fipowacrtackerace zu OMT Ada Type of Test Specs at the DataMite you must download it ran Oz a E ken Top
204. n 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 38 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Engine RPM Calibration Figure 2 21 Figure 2 21 Sensor and Calibration Screen Engine RPM Channel 1 Cylinders Calib 8 Cylinder 4 Stroke 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 Engine Specs coils A modern distributerless V 8 may have 4 coils each firing 2 eee Cindes ER 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 Engine Type a Stroke cylinders Note Pick the cylinders in the engine and 2 or 4 Engine Type stroke operation For special ignition systems like distributor less or small 4 cycle engines you This input specifies how often this spark source fires each cylinder either may have to adjust these specs for accurate 1 time for each revolution typical 2 stroke or 1 time for every 2 RPM readings For example a Briggs motor fires every revolution like a 2 stroke so call a Briggs a 1 Cyl 2 Stroke Kee
205. n which the DataMite Analyzer found may start 13 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 ifyou Figure 1 7 Pro Version s Engine Specs Menu Showing Clc Button want to calculate compression ss Engine Specs YAMAHA ratio from chamber volume deck height etc simply click on the Engine Customer amp Comments Clc button The program will Engine Customer display a new menu listing the inputs and the Calc Compression Short Block Cam amp Heads Ratio from these inputs For ives Hore Heads further explanation click on the pe ainka Cam Help buttons in these menus To Rod Length ER VivDia PotCCs R Ratio Lash use the Calc Compression Ratio 5 97 cid Sr EES Chmbr 11 0 ccs Int az
206. nalysis and won t allow you to keep track of important details about the vehicle 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 vehicle and do not affect any calculations or what is recorded like Engine Specs Test Comments etc Six 6 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 Drag Race 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 Run Pro Version Only is the Run for the Log Book and for the Run Log listed down the left side of the Main Screen This automatically incremented up by 1 by the program but you can change it in this screen Note that this is not based on the Run from the current run on the Main Screen because this could have been from several months ago It is based on the Run Log listed down the left side of the Main Screen which is based on recent runs downloaded from the DataMite See Section x x Run Log 3 Track Event Pro Version Only is the Track amp Event for the Log Book and for the Run Log listed down the left side of the Main Screen This is for informa
207. nalyzer Appendicies Example of Calibrating a Shock Travel Sensor A Shock Travel Sensor was described in Section 2 9 It is a variable resistor that measures suspension travel and must be calibrated so that the voltage output means something real like inches of travel As with any calibration you must 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 combinations mentioned earlier Figure A5 3 Shock Sensor Calibration Points Length with 1 inch Usually one input is very easy like zero travel or the static compression length of the sensor with the vehicle at static ride height The second combination can be more complicated You must put a known travel on the sensor The best way to do this is to shorten or elongate the sensor and measure the change in length with a tape measure Calibration Procedure 1 Turn on the DataMite to Read the Shock Sensor Channel This procedure assumes you have installed the shock sensor following the instructions with the sensor for wiring and mechanical hookup Turn on the DataMite or DataMite II and let the system warm up 2 Pick the 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 Figure A5 5 Open DataMite Specs Menu Click here to open DataMite Specs menu lA DataMi
208. nd Details Run 1 161 Runs Race amp Vehicle Conditions Current File Race Comments not in Run 3 57 pm 04 13 2002 Full throttle accelerations in 2nd gear Help This table shows Tq amp HP L to measure engine torque and HP values for this run Click and drag Testing at Milan 1320 Quarter Mile Stock 1996 4 6L 2 valve Mustang i i Factory rating 285 ft lbs 3500 215 HP 4400 Stock Condition MPH Vehicle weight in Vehicle Specs is for 2 Dry Dnsty Alt 1441 ft Meas Tq HP from Accel passengers 9 8 if 6 5 4 3 3 2 1 1 1 1 1 1 1 1 1 1 1 4 AE S p e So Cee ey oo In the Graph Data screen you select a Type of Pick Individual Channels and then select the Data Types of Corr Flywheel Torque and Corr Flywheel HP only Corr means the data is corrected to standard dyno conditions for weather Flywheel means the program estimates the losses in the vehicle based on Vehicle Specs and engine size to obtain a reasonable estimate of what the engine would produce on an engine dyno If you had selected Road torque and HP the power curves would be lower more typical of a chassis dyno For Time RPM Distance set it to RPM Note that power curves are generally the only types of data which should be graphed versus RPM What to Graph set to Power Run 1 Filtering set to Medium Note Most power curves require some level of filtering either Light or Mediu
209. nd MPH entries in the Track Conds screen If you change them in one screen they are automatically changed in the other e The Log Book screens can be printed with reports and you can select which screens See Section 3 4 page 97 e The Log Book screens can be searched using the Filter find option when you use the Open from all saved tests option after clicking on File at the upper left of the Main Screen For example you may want to search for an upcoming opponent to check their Reaction Times search for what tire pressure you used at a particular track etc e As with most all screens when you click on an input you are given a description of that input in the Help box usually at the bottom of the screen For this reason and because most inputs here are for info only not critical each input is not listed and described in this section Engine Details The Engine Details screen shown in Figure 2 11 is obtained by clicking on More Engine at the top of the main Log Book screen then choosing Engine Details There are 4 tabs at the top which let you choose any of 4 categories of inputs Figure 2 11 Engine Details Log Book Screen Click on these 4 tabs for various sections of the Engine Log Book ia Engine Log Book Back ok File Help Jet Suggestions are Fuel Metering Mechanical Checks Other Checks RPMS amp Revs only possible if you enter the weather Fuel Delivery diti f Comparison Seq 119 conai
210. nel 2 or the front wheel RPM looks OK Again press and release the yellow Record button once holding it down for about halfa second Now you see the Record LED flash three times then remain off for about a second This new flash pattern repeats The 3 flashes mean you are now checking Channel 3 Check it also as you did Channel 2 above You can also check channel 4 the same as the other channels 119 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 1 DataMite Setup Mode Power up DataMite and wait for Record LED to light steady Push and release Clear Memory button while holding Record Button down to put into Setup Mode Setup Mode starts with displaying Channel 1 engine RPM LED flashes either once Record Setup Mode starts with twice 3 times etc quickly displaying channel 1 to show which channel engine RPM Push Record is being checked button to Channel 2 and Flak Seti Mode again to display Channel 3 etc DataMite Performance Trends 248 473 9230 LED flashes as signal comes Clear Memory into DataMite When engine running and on Channel 1 LED should flash For RPM Setup Mode and go back sensors LED lights as p LED On Memory Full R rding M i magnet passes sensor or Flash Nearly Full O to Recording Mode brightens or dims with analog sensors Push Clear Memory button to bring out of except the thermocouple converter will be flashing so fast t
211. nes a vertical line called a cursor is drawn The values of the graphs at the cursor are displayed at the right in the graph legend and the time at the cursor is shown at the bottom right of the graph See Figure 4 28 This is very useful to pin point the exact values on the graph See Figure 4 18 in Example 4 1 Figure 4 29 shows how you can bring up 2 cursors to bracket a section of the graph The second cursor on the right side of the graph is moved exactly as the single cursor except you must hold down the lt Ctrl gt key on the keyboard to move it Once you have defined an area of interest on the graph you can click on one of the Analyze buttons to display either the Maximum Minimum or Average values in the defined area These are displayed in the graph legend the same as the values for the single cursor Figure 4 29 shows the average converter slip for the New converter to be 20 90 and 25 38 for the old converter about a 4 5 difference which is quite large Most any way you look at it the new converter is significantly tighter more efficient which also means better than the old converter 138 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Figure 4 26 Graph After Zooming In with the Mouse as Done in Figure 4 25 Click on Full View to w DataMite Analyzer v3 2 grand am 1 CFG xi return to the original Back File Format View Graph Type AddTest HistoryLog Single Test Help scales where
212. ng 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 Now find the DTMDATA folder under DTM20 under PERFTRNS PTI usually on the C drive Right click on the folder 173 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 DTMDATA 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 when 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 Overw
213. nsteady power source bad wiring connections or a bad or intermittent ground Turn the Power Off then On to reboot the DataMite On earlier DataMite systems vibration of the control panel could actually false push the Record button stopping recording Try mounting the control panel away from vibration Also current DataMites have a built in delay time in the buttons which means you must press and hold the button down for a half second or so This is also to prevent false button pushes from vibration RPM Data Recorded but Looks Bad RPM Data Noisy or Jumpy See Figures 2 46 and 2 47 on pages 78 and 79 for examples 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 92 and 93 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 Figure A3 3 Inductive Pickup Adjustments for Signal Strength 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 The engine will not run poorly since Typic
214. nt Help Tests Marked Test File and Path Graph J Graph Title ARuns GraphRuns Save7 Engine TestDate F lt Yes examples yam 925 cig l YYam100 0003 01 02 2000 tomkraus reed09 cfg Yam100 0003 Yes Yam100 0003 04 11 2000 1 Click in the Std tkrause yam 950 cfa YAM 950 01 02 2000 7 Graph Title tkrause yam 925 cfg YAM 925 01 02 2000 7 column to change tkrause yam 900 cfg YAM 900 01 02 2000 7 the Std G h jason jun2 ctg JUN2 04 12 2000 1 Ie rap jason junt cfa JUNI 04 12 2000 1 Title Alternate Sjason junk cfg JUNK 04 12 2000 1 titles are also domenic dddd1 2 cfa DDDD12 ih __ ig possible by clicking on Format then Edit Legend Titles Click in Graph column to select or de select tests for graphing Slide button ight for more History info Tq HP corr to 29 92 60 dry Click in the Graph Runs column to change which run or runs you want to graph a number from 1 to the number in the adjacent Runs column C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output explanation of the previous page 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 31 Most of your tests will probably be for only run so there is no need to specify the Run The program defaults to Run 1 if there is more than 1 run History Log at Report
215. o 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 If you specify the 30 is Data Mite Specs channel DataMite II you Back File DataMite Il Options Current Presdings Troubleshoot Help have many more settings Type Eee Weather Station None 7 E er z DataMite Il Rate samples sec 50 DataMite II Recording Segments E Approx Record time segment 10 mi l Channel Settings Channel Used DataName Sensor and Calibration gt lt A The combination of Engine APM der 4 Stroke Rate number of active 2 Frequency2 Yes Other RPM 1 Magnet channels Used set to 3 Frequency 3 Dyno Wheel RPM 1 Magnet Yes and Segments Frequency 4 Chnl 4 Not Being Used determine the 5 Frequency 5 Torque 8 Cylinder 4 Stroke A Dyno Torque DynoTq 0 4096 4096 0 488 Dyno Torque approximate recording RPM 2 Cstm 0 4096 counts 0 10000 RPM 2 time for each segment a3 Std 0 5 Volt ad Std 0 5 Volt Std Thermocouple Exh 1 Std Thermocouple Exh 2 Std Thermocouple Exh 3 Std Thermocouple Exh 4 Tip Help Click on most anything in the Channel Settings grid to Click on the down arrow button to select the type change it For Used you will toggle between Yes and of DataMite you are using You choice here will No For Data Name and Sensor and Calibration you affect which specs ar
216. o to input Wet and Dry bulb temperatures from a psychrometer Depending on your choice the appropriate inputs are enabled Know Dew Point 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 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 calculation replaces reading the chart The Wet Bulb Temp must be less than the Dry Bulb Temp 61 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 8 5 Weight Percents Figure 2 41 Weight Percents Menu Calc Wt on Rear Tires This Calculation Menu is available at the Suspension Log Book screen where y
217. o 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 This Main Screen Select this option to print the summary data shown on this main screen 18 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Print Other Screens This option gives some general instructions on how to print data from other screens Windows Printer Setup 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 Drag Race DataMite Analyzer is equipped with Figure 2 7 Menu to Unlock Program Options copy protection This ensures that legitimate users do FA Unlock Form _ Of x not have to cover the costs for unauthorized l Code to Extend Demo 239235212 distribution of the program When you first receive ee Computer Hardware 842897 the program it is in demo mode In demo mode you can try either the Basic version or the full Professional Registered Name Joe Smith Gael version for ten days All features are working in Registered Code 14666 demo mode Enter Unlocking Code eel Help Sometime during those 10 days you must call Performance Trends to obtain an Unlocking Code Click on Help for more info on how you use this sc
218. oiler width of vehicle Blocking half radiator air flow Notes concerning Table 2 3 and 2 4 1 Change the vehicle s attitude from the production attitude 4 degrees where a negative angle of attack is when the front is lowered and the rear is raised 2 For this table an air dam is defined as a flat plate the full width ofthe vehicle projecting vertically down directly below front bumper based on typical 1970s or earlier design say a 1974 Nova Most modern designs integrate air dams for optimum Cd therefore adding an air dam to a modern vehicle will likely show an increase in Cd but perhaps a reduction in Cl 3 For this table a spoiler is defined as a flat plate extending the full width ofthe vehicle at the top rear edge ofthe rear deck trunk lid angled back 20 degrees from vertical e Clisthe lift coefficient Assume that the lift coefficient was changed on the end of the car where the modification took place For example if you added a 4 Flat Air Dam to the front subtrack 05 from the current Front Lift Coefficient and leave the Rear Lift Coefficient unchanged For changing the Angle of Attack make the change to both the front and rear Lift Coefficients e Table 2 4 shows typical effects from modifications Individual vehicle s can differ considerable e Advertised Cds are usually the best case For a realistic CG BAe ONE Figure 2 28 Estimate of Frontal Area sq ft advertised Cd Frontal Area sq ft Vehicle Heigh
219. om the DataMite It is similar to the History Log and is explained in Section 3 9 page 113 20 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 2 Preferences Figure 2 8 Preferences Menu Click on the Preferences item in the menu bar Preferences at the top of the Main Screen to bring up the Preferences menu shown in Figure 2 8 There Graphing Printing are 5 categories of settings which you select Calculations by clicking on the different tabs Here you Main Screen Filing System can adjust some program items to personalize the program for your needs Preferences may also save time by eliminating steps you don t Main Screen Graph Lines Thin Cancel require Main Screen Time Increment 10 Main Screen Filtering Level None Main Screen Tab Display in Summary Dry Density Altitude m Hee Main Screen Graph Lines Restart i Showing This option lets you choose the line thickness Help Tips ofthe summary graph of Engine RPM and MPH for the current run of the current test file displayed on the Main Screen Set Graph Colors Main Screen RPM Increment This spec lets you pick how often you want RPM and MPH reported on the Main Screen much like the similar spec for Reports The smaller this number the more data which is reported the longer the list of torque and HP data and the jJumpier less smooth the Main Screen graph Main Screen Filtering
220. on Graph Type at the top ofthe Graph screen and de select front wheel RPM and driveshaft RPM by clicking on them Then click on Converter Slip and Tire Slip to select them and make the graph again Now we should clearly see ifthe new converter is tighter 136 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples It should be noted here that both runs show the start of the acceleration 0 2 to 0 3 seconds before time 0 seconds That is because the DatgaMite program realizes that drag racing starts have a certain amount of rollout time time required for the car to roll out of the timing lights and start the ET timer The program automatically estimates this time and can fine tune it with the Match Time Slip feature This means time on the graph should match the ET timer times on your time slip You will Figure 4 24 Checking Data Quality of Both Tests Being Compared Back File Format View GyaphType AddTest History Log Single Test Help grand am i 1 Engine RPM Front Wheel RPM Driveshaft RPM Distance grandamedge 1 1 Engine RPM 1 Front RPM RPM DS RPM RPM Distance Time sec Figure 4 25 Graph Including Converter Slip i DataMite Analyzer v3 2 grand am 1 CFG Back File Format View Graph Type AddTest HistoryLog Single Test Help grand am 1 1 Engine RPM x 1 Cltch Slip x 10 Distance grand am edge 1 1 Engine RPM x 1 Citch Slip x 10
221. onal 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 Drag Race DataMite Analyzer file either Windows V2 0 or the older vl 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 list 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 Vehicle 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 Vehicle menu See Figure 3 24 Figure 3 24 Engine File Options Pro version only lA Drag Race DataMite v3 2 Performance T File
222. one test has been highlighted only the first test will be opened Figure 3 41 Run Log and Options Click on the Details button to expand the Run Loa as shown to the right A Drag Race D A Drag Race DataMite 3 2 Performance Trends 69 GTO CFG BEE File Edit Graph Report Track Conds LogBook DataMite Vehicle Preferences Help Send Run 1 Click on Cancel to shrink Run Log to single column as shown to left Sjunk jund 6 45am 06 13 2002 1 The Sequence junk jun8 4 38 pm 06 10 2002 is th b junk jun 4 30 pm 06 10 2002 Is the number junk detroit6 of the file as power runs tq hp downloaded analog ff1 from the DataMite For UTUNZUIZ u 06 02 2002 2nd time run Edgewater bracket race example 165 th 06 02 2002 Edgewater bracket race 2nd time run is the 165 test 06 02 2002 2nd time run Edgewater bracket race ever 06 02 2002 Edgewater bracket race 2nd time run 06 02 2002 Edgewater bracket race 2nd time run downloaded to 05 11 2002 Edgewater 3rd time run this program ilespie accel gto0203 05 11 2002 Edgewater 3rd time run since you first lespie accel gto0202 4 05 11 2002 Edgewater 2nd time run 3 illespie accel gto0201 3 05 11 2002 Edgewater 1st time run installed the illespie accel gto0201 3 05 11 2002 Edgewater 1st time run program This illespie accel gto0201 3 05 11 2002 Edgewater 1st time run illespie accel gto0201 3 05 11 2002 Edgewater 1st time run number IS illespie accel gto0201 3 05 11
223. only In Pro version data can be adjusted based on this info Type of Test ij Vrack Race Conditions Help Click on down arrow to select the Tyne of Test Race Summary type oftest you ran This choice gt Hace Buns Track Length ft 660 EighthMile can have a large impact on what z data is Rete e Your Track Weather Conditions kiish MEH choices are Method of Reading Weather Data Er PULE e Drag Race Run Wi iti 8 eae Uncorr Baro with Rel Hum Wind Conditions e Accel to measure torque and Wind Speed MPH HP Obs Barometer Hg Ayind Direction Side Wind e Custom Test which would be ythi Air Temperature deg F anything else Help Notice that some of the choices are Relative Humidity Click on down arrow to select the type of test you tan This choice can have a large impact on what data is graphed and analyzed p 27 not used as they are used for Test Elevation feet Types in the other versions of the software Density Altitude ft Dry Density Altitude ft These snecs are additional weather information Weather Weather conditions are used to correct torque and HP to standard Ar conditions Conditions The weather conditions surrounding the engine affect the air s oxygen density which affects engine power You can use your own weather stations or purchase one from Performance Trends to record weather information automatica
224. only watch this computer screen 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 Engine RPM you would probably pick an 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 purchase 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 to your computer possibly damaging the computer Click on Options to either select to Change the update rate of this screen Change what is displayed on the circular gauges Change what is displayed on the Bar Gauge Settings DataMite II only Change the scale of the Exhaust Temp Scale DataMite II only Change the Color Warning Settings Change the Analog Filtering smoothing Figure 2 31 Change Update Rate Change the update rate of this screen Enter the new update Click on Options then Change Update Rate currently x to be presented with rate you want a number the screen of Figure 2 31 Enter any number between 1 and 10 to specify the between 1 and 10 for Cancel the number of updates number of screen updates per second On slower computers you may want to specify a lo
225. ons and are familiar with good electronic cabling practices Therefore be sure all wiring reaches the dyno ignition power and ground This may effect where you mount the DataMite module Excess wiring can be coiled in a location by the DataMite away from the engine s ignition system 158 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 6 Install Wiring Harness With the harness NOT hooked up to the DataMite module string the connections and 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 Important The power to the DataMite must be clean If you are using the car s battery connect to the battery with separate wires Do not connect to the same switch that controls power to the ignition system 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 yellow ignition lead to your ignition module s tach or spark output or the negative side of the coil or the yellow wire of the optional inductive pickup See Figure A2 7 page 157 for examples of ignition sources The standard DataMi
226. ore 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 C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction 1 2 Before You Start What you will need e IBM Pentium computer running Windows 95 98 Me 2000 or NT or 100 compatible e 64 Meg of RAM e Approximately 10 Megabyte of disk space More is required for storing large s of tests Many terms used by the Drag Race DataMite Analyzer and this user s manual are similar to terms used by other publications 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 Drag Race 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 Drag Race DataMite Analyzer directory or folder This file can be displayed right in the DataMite Analyzer by clicking on Help at the Main Screen then clicking on Display Readme doc File You can also read it using utilities like NotePad or WordPad Unlocking Program Options Th
227. ot always possible When are accurate measurements and repeatable measurements most desirable e Ifyou very accurately want to determine if a modification for example changing the intake manifold has improved the performance the repeatable data logger is the one to use e Ifyou want data logger numbers to use in a magazine article for other people to compare their data logger with you are better off with the accurate data logger e Ifyou want Slip numbers to use for certifying the torque converter for example selling a converter with a guarantee it produces a certain amount of slip you are better off with the accurate data logger For most drag race testing repeatability is more important Fortunately repeatability is also easier to obtain To Improve Repeatability The most basic thing for improving repeatability is Don t change things This means that you should not tweak Vehicle Specs or DataMite sensor calibrations to make minor improvements The Pro version of the Drag Race DataMite program has a feature called Match Time Slip which can improve accuracy if you accurately enter the ET and 60 ft time for each run However if you do not do this for each run you may want to turn off this feature as this adjustment may introduce more error in the data See Preferences section 2 2 Many times the DataMite will record actual difference from run to run caused by difference in the actual vehicle s performance A
228. ote that the DataMite Specs for a particular test may not match the DataMite you are currently using the Master DataMite Specs The program keeps track of any changes to DataMite Specs asking 35 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions you if these changes should only apply to the DataMite Specs for a particular drag race run or if these changes represent your actual DataMite the Master DataMite specs 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 Figure 2 20 DataMite Specs Menu Click on File then e Save as My Master DataMite Specs e Open Master DataMite Specs e Print or Windows Printer Setup to print this screen w Data Mite Specs Hile Current Readings Troubleshoot Help Click here to bring up 4 Channel DataMite Com 1 Weather Station None 7 the Sensor and libration screen for Channel Settings Calibration screen fo ft Channel Used Data Name Sensor and Calbration z detming Sach channel 1 Engine RPM EngRPM 8 Cylinder 4 Stroke as shown in Figures Frequency 2 Front Wheel Front wheel RPM 2 Magnets 2 21 and 2 22 3 Frequency 3 Driveshaft Driveshaft RPM 2 Magnets 4 Frequency 4 Exh Temp Analog Std Thermocouple Tip Click on most anything in the Channel Settings grid t
229. ou click on the Clc button next to the Weight Calc Rear Weight inputs When enough inputs have been entered it shows Weight Calc Left Weight s which can be copied back to the Vehicle Specs menu by clicking on Use Calc Values the Current Vehicle Weight in the Calc Cross Weight Vehicle specs menu for comparison and the new Vehicle Current Yehicle Wt Ibs Weight based on the 4 corner weights entered into this menu Veh Wt from these Inputs Ibs 12195 The weight measurements should be taken with the driver in the car all fluid and fuel levels in race condition and on a very flat Vehicle Weights surface Left Front Weight Ibs Right Front Weight Ibs Left Front Weight Ibs Left Rear Weight Ibs Right Front Weight Ibs Right Rear Weight Ibs Left Rear Weight lbs Right Rear Weight Ibs nes These weights should all be obtained with driver in vehicle on a very FLAT surface Are the weights on the respective tire in lbs When you first open this menu these are filled in with the corner weights which produce the Weight s for the Vehicle Weight currently entered Use Calc Value Help Cancel Print in the Vehicle Specs menu If you use the new weight s from this menu and the New Vehicle Weight is significantly different from the current vehicle weight you will be asked if you want to load the New Vehicle Weight into the Vehicle Specs menu also 2 8 6 Frontal Area Figure 2 42 Calc Fronta
230. p Calib Help Cancel Print revolutions 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 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 think 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
231. point values on the graph For more details on other graph options check Example 4 2 Analyzing Dyno Data Figure 4 16 Graph Menu Specs for Figure 4 17 Torque and HP Graph Graph in Figure 4 17 Click on Graph Type to get is Graph Data x Fig 4 18 s screen Engine RPM channel A Front Wheel es Filtering set to None IE Back File Format View Graph Type AddTest History Log Single Test ug FEIERN HE YY a Co CE Driven wheel RPM Engine RPM Front Wheel RPM Driveshaft RPM Exh Temp Deg vs Time grand ami 1 Drive whl or Drvshft RPM i ieee i i l m Fr ah 1 1 i 1 1 i Front Wheel RPM Vehicle speed in MPH i i H Driveshaft RPM i i A r E i Exh Temp DegF Acceleration rate in Gs Other Graph Properties Time RPM Distance Tine 3 What to Graph Just Run 1 z a ne Filtering smoothing None v indicating fuel system Histogram RPM Increment i000 On fen mn Histogram Starting RPM Histogram Ending RPM Notes 4 2 l J i 4 K i j Time sec Data Selected to Graph 8 types max Engine RPM channel Front Wheel is DataMite Analyzer v3 2 grand am 1 CFG Driveshaft Back File Format View Graph Type AddTest HistoryLog Single Test Help Exh Temp Make Graph Help Cancel Print Time sec C Performance Trends Inc 2002 Drag Race DataMite Analyzer Figure 4 18 Graphing Calculated Outputs is DataMite Analyzer v3
232. r Editing Out 32 Noise Spikes many Noise Spikes remain too many for accurate torque and HP calculations Back File Format View Graph Type AddTest HistoryLog Single Test Help Back File Format View GraphType AddTest HistoryLog Single Test Help al el laa elel eel edeli ty ruview sescsed el el Layla elelee eel BlelxTsTraveTsascaes Engine RPM aie em vs m 0 all Engine RPM ehz RPM vs Time 0 all gt Engine RPM p i Engine RPM Ch2 RPM i i 1 i Ch2 RPM i i i i i i i 1 e 1 i i i i This reading SKOAN by the Noles PRIRA is ea wrong The readings next to the Noise Spike are a good approxima tion of the real reading a 25 0 30 0 35 0 Time sec 3 i 25 0 30 0 35 0 Time sec If many Noise Spikes occur close together the program can not accurately determine if a spike is noise or real data and leaves it in 73 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 74 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Chapter 3 Output The Drag Race 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 Linking Sending recorded data to one of Performance Trends suspension analysis programs Pro version only High resolution graphs Printer output of reports or graphs
233. r Right 11 22 Caster Gain 78 Rt Height Y Rt Depth 2 21 3662 8697 18 2624 Upper Frame Pivot Front a era es 112 Figure 3 36 Example of Motion Ratio MR MR Sensor Movement Wheel Movement MR 65 1 12 58 Shock Sensor Side view of rear ladder bar with shock sensor Figure 3 xx Typical Calibration Screen When calibrating these values are the either the Shock Sensor motion for Susp Anzr or Wheel motion for the 4 Link Calculator program You can manually start displaying DataMite data by clicking on Animate and selecting DataMite data file as Data Source Additional data like Distance and Engine RPM are also displayed in this section so you can better relate to where you were on the track C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Analyzer file When either of these 2 programs open up the program automatically tries to load this file and automatically go into displaying the DataMite data If this file can not be found or if this is the first time you are trying to send data to these programs instructions are given in those programs on how to open the correct vehicle file and then display the DataMite data Now that you have picked the appropriate vehicle file in either of these 2 program this vehicle file name will be remembered by the DataMite program Figure 3 39 DataMite Data in the 4 Link Calculator IAQ Link Per
234. r a different Folder name click on the down arrow button and select one Select the top choice of Add New Folder and you will asked for a new Folder name to add to the list of olders lOIxjs CAMTEST2 CFG Gr type in a new folder name This new folder name will be added to the list so that you can save the test file to that folder if you wish The word folder can be changed to most any word in the Preferences menu In the previous DOS version this was the Track name oke eE Type in a New Folder Name here if you select Add New Folder as the Folder Name Click here to bring up standard Windows File Save screen to let you save a file in most any folder directory and disk drive and to most any file name Pro version only Note that files saved this way are not found in the standard Test Library and are not searchable using the Filter options 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 shown at the top ofthe 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 n
235. r some race vehicles with race cams do not lug the engine down to 1000 RPM Pick some relatively smooth running RPM below the RPM range you are interested in testing 147 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples EEE EEE EEE n m sbz7 su ms mmz sss 3 You quickly open the throttle to full throttle being careful not to break the tires loose or cause a jerky acceleration Note Engines are prone to knock and detonate at low RPM and full throttle If this happens quickly close the throttle and try the test again with higher octane fuel or starting at a higher RPM 4 You close the throttle after reaching the maximum engine speed being careful not to over rev and damage the engine You roll through the finish line 5 You then press Record on the DataMite control panel to not record a lot of non test data and drive back to the pits Important If you press the red Clear Memory button at this time instead of the Record button you will erase the first run from memory Note The method the DataMite Analyzer uses to calculate torque and HP produces less accurate results at the very beginning and end of the RPM range of the acceleration For example if you want accurate data from 3000 6000 RPM the ideal acceleration test would be from say 2500 6500 RPM However for engine and driver safety do not over rev the engine Getting DataMite
236. ram Match Time Slip it will correct the DataMite s recorded data based on ET this number can affect the recorded data also 60 ft sec Enter the time slip s 60 foot time In the Pro version this number is also loaded in the appropriate spot in the Log Book If you have selected in Preferences to have the program Match Time Slip it will correct the DataMite s recorded data based on ET and 60 ft times this number can affect the recorded data also Wind Conditions Wind Speed MPH Corner Tail Wind Side Wind Corner Head Wind Enter the wind speed during the race in MPH This entry N Pa is for information only No entry is required Wind Direction Tail Wind Vehicle Direction Head Wind Choose a Enter the wind speed during the race in MPH This entry is for information only No entry is required Figure 2 9 B 28 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 4 Log Book Pro version only The Log Book lets you record additional data for each run data not recorded by the DataMite recorder like ET and MPH which you can record in the Track Conds screen Track and Event Name which lane you were in your opponent tire pressures suspension settings engine specs and checks and much more Since most all these entries are for your information only not used by the DataMite software for calculations you need to enter only the information you are interested in You can leave mos
237. re for example around a fouled plug Running the engine in the dark can show up arcing plug wires Rubber Washers on top of bracket bottom or both Mounting surface trans extension housing Try to position the yellow Ignition lead and any other DataMite cables rear axle housing brake backing plane etc away from the plug wires other ignition components etc Position the DataMite away from the fire wall engine or ignition system If the noise problem still persists try shielding the yellow ignition lead and or possibly the leads to the wheel sensors Wrap with aluminum foil or cable shield available from electronics stores and attach a wire from the foil or shield to a good dyno frame or engine ground Use a clean steady power source which can maintain 9 16 volts A battery is excellent source if you wire directly to the battery Do not power the DataMite from a terminal which also powers the ignition system as this will be very unsteady Use a solid ground source Do not ground the DataMite to a terminal which also grounds the ignition system as this will also be very unsteady Make sure the engine is well grounded to the dyno frame and the dyno frame is well grounded to earth This would mean a large ground strap which connects to a ground rod driven in the ground or 2nd choice a copper or at least metal cold water pipe 168 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies
238. re Radius in Front Tire Radius in cte Drive Layout Rear Wheel Drive Aerodynamics Type Poor Late Model Drag Coefficient 5323 Frontal Area sq ft Yehicle Comments Super Gas GTO 1st Gear 2nd Gear Engine Specs 405 8 cid Engine Size cubic inches Primary Gear Reduction L Ted The weight of the vehicle with the driver in pounds p 20 Vehicle Specs Total Weight with Driver Ibs The weight of the vehicle with the driver in pounds this screen 47 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Final Drive Ratio The ratio of the final drive gears or chain ratio or both Click on the Clc button to calculate from of gear teeth Rear Tire Radius in Distance from the ground to the center of the Rear wheel tire in inches Click on Clc button to calculate from tire size specs Front Tire Radius in Distance from the ground to the center of the Front wheel tire in inches Click on Clc button to calculate from tire size specs Drive Layout Click on down arrow button to pick the location of the driving tires or axle Motorcycle With Pri GR means Primary Gear Reduction between the engine and the clutch which enables the Primary Gear Reduction spec in the Engine Specs section Aerodynamics Type Click on down arrow button to pick a general description of the car s a
239. re erg Notes options Ifyou pick the Type Pick Individual Data to Report 8 types max Items you can highlight from the list of Use MM 55 55 Time Yes 5 Engine RPM channel Acceleration rate in Gs Clutch converter slip data types to report Then you can choose to Include Averages graph versus Time RPM or Distance pick What to Graph and the Filtering These are just the same as with graphs However you have some additional options like the starting and ending points for the report and if you Make Report Help Cancel want to averages calculated and over what range lt ay E z y N gt 4 BESERNEEERBeIBE Data reported at each distance increment not averaged over the increment Stop Average At E To obtain comparison reports of 2 or more files click on History Log or Multiple Tests at the top of the upcoming Report Screen Averages can be quite useful for making comparisons from test to test For example in Figure 4 32 we requested to make an average from the 1000 ft mark through the run at the 1320 ft make This may be a useful way to track the health ofthe engine transmission or converter For example ifthe average Converter Slip over this length of track starts to increase it may be indicating a problem with the converter or transmission For example the report in Figure 4 33 shows an average Converter Slip of 8 9 over this distance
240. recording vehicle 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 The DataMite program is actually smart enough to find your individual drag race runs in your recorded data You do not have to time the pushing of the record button with the actual start and end of the run The program wants to see some data before and after the actual drag race run Therefore start recording before you stage even before the burnout if you want and stop recording well past the end of the run See Figure 4 6 Figure 4 6 Basic Procedure for Recording Drag Race Run 5 End of 6 Press 4 Stage and Run start Record Button 1 Power up 2 Start 3 Press Make R ean ee DataMite and press Engine Record Button ART UN g p recording Clear Memory drive to to start button Wait for staging recording data Record LED to stop lanes do after burnout 7 Drive to Pits Flashing Then burnout download data to press Record to etc DataMite program in pause DataMite Engine Drag Race computer Record LED goes RPM run is this out section 122 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 4 Examples Drag Race Run Procedure outlined in Figure 4 6 1 Power up the DataMite When the LED by the yellow Record bottom stops flashing press the red Clear Memory button to erase the DataMite s memory Then when the LED by the yellow Record butto
241. reen to unlock this program 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 then clicking on Unlocking Program Options A screen will appear as shown in Figure 2 7 See Section 1 2 for more information on how to unlock the program Graph The Graph command lets you graph several different types 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 83 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 75 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 race conditions like ET MPH 60 ft time etc 19 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Log Book Pro version only The Log Book command opens up the Log Book menu There you can describe in detail the run you mad
242. res The DataMite data logger packages by Performance Trends Inc is a system to let racers engine amp chassis builders and motorsports enthusiasts measure and optimize vehicle performance especially for Drag Racing The hardware comes in either a small 4 channel system or much larger 30 channel system with many options to measure RPM temperature pressure movement acceleration rate and more The Drag Race DataMite Analyzer software 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 or vehicle modifications The software is also 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 Drag Race DataMite Analyzer software provides sophisticated data acquisition and computer analysis at a fraction of the cost of other systems The Drag Race DataMite system s major features are listed below Basic Features e Configure and calibrate the software for most any combination of sensors you have installed on the DataMite data logger Capability to tailor the program to work with most any type of vehicle including Jr Dragsters most any NHRA or IHRA class
243. reviously 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 tests to the library These saved Figure 22 Opening a Test File aay e A in the future and can be used as test E patterns or templates for new tests 5 Tests in Library Chosen File 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 Tip Single click on a Test name to choose it for number oftests For example all tests possible Opening or Deleting A preview of that for the company ABC Engines could be Test will be given in this frame Double click on a x Test name to immediately Open it without a saved under a section name of ABC preview ENG All 4 cylinder Ford tests could be saved under a section name of 4CYL FORD This will save considerable time ri List All Files by File N e es Tip Click on a and confusion when trying to located a O ist All Files by File Name different Folder particular test in the future To look in pee ke Namo Ieee Dun Date name to cepley ol R List by Run Date include File Name
244. riting an Entire Folder several files A This folder already contains a file named Headnum pti Be very careful selecting Bg this option as several files Would you like to replace the existing file may be overwritten at once 2 Eu Confirm Folder Repl modified on Wednesday May 19 1999 3 28 48 PM OMRE OEL EN with this one Ta This folder already cofttains a folder named Combo fee folder you are moving they will be replaced Do you still want to move modified on Tuesday August 31 1999 1 09 24 PM the folder 2 211KB If the files in the existing folder have the same name as files in the Yes to All No Cancel 174 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 RPM 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 Mar Closed Throttle ES 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
245. rounding data points In this case the noise is due to magnets on the shaft not being exactly evenly spaced te DataMite Analyzer v2 0 YAM 930 CFG Back File Format View GraphType AddTest HistoryLog Single Test Help 9 0 Time sec Dyno RPM vs Time 1600 0 1960 0 16200 14800 1440 0 14000 13600 1320 0 12800 12400 12000 11800 11200 7 Errors Caused by Relatively Minor Noise Spike ta DataMite Analyzer v2 0 INERTIAI CFG x Back File Format View Graph Type AddTest HistoryLog Single Test Help ee eeel Lel gt Tele Bdolzlsiruvenfsescaes inertiag 1 Corr Tq Cor HP i 1 7 i E Pecesces decane gece Perrerer F N 1 1 f 1 1 4 4 2400 3200 4000 4800 5600 6400 7200 RPM Dyno RPM is shown here but the same effect will be seen for Front Wheel RPM Dyno RPM after program edit outs Noise spikes te DataMite Analyzer v2 0 INERTIA8 CFG Back File Format View Graph Type AddTest HistoryLog Single Test Help el BY eo Leo Dede defilee seas inertia8 1 Corr Tq Corr HP i 1 1 1 1 aiGecssmes deccecce dessaaase kassasen s f 1 1 1 Correct Torque and HP after program edit outs noise spike 3200 1 1 2400 4000 4800 5600 6400 7200 RPM C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 51 Example of Not Editing Out Noise Spikes Very Well Original Data with Noise Spikes Data Afte
246. rt a New Test get data from DataMite or download data If f gt spikes are found you can select to NOT have them corrected This is Noise Spikes 4 channel DataMite useful to determine the source of the noise spikes Although accuracy improves by editing the spikes out it is best to eliminate spikes at the Engine RPM source if you can Chni 2 Chnl 3 Chni 4 To see Noise Spikes graph the raw data not calculated data like Engine Accel RPM sec f f ee A Dyno wheel RPH torque clutch slip etc vs Time with Filtering set to None See Figure Calcd gear ratio 2 49 for typical Graph Specs to show Noise Spikes Clutch converter slip If you selected to have the spikes edited out when the data is De Asp ee downloaded it is unlikely any more spikes will be found again This Time or RPM Graph x edit command is most useful if you did NOT edit out the spikes when What to Graph _ All Data the data file was first 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 Notes the data file Noise spikes occur here and there and jump out from en een 4 types max the rest of the relatively smooth data Figure 2 50 illustrates the Chel t2 difference between noisy data and noise spikes Chnl 3 Chnl 4 Some times the noise spikes are too numerous or come so close together that the program can not determine what is r
247. run you want to make the report of All Data Just Run 1 Just Run 2 if it exists Just 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 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 86 and 87 in the Graphs Section for an illustration of Filtering 77 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 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 of Data Starting Time or RPM Is the first or lowest time or RPM for the report If you have selected a Time or Distance 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 sele
248. s menu e Print or Windows Printer Setup to print this screen w Genera Engine Notes Back File Help Engine Comments Engine and Comments 400 CID bored DED different than main pane i Checked lash this run set to 020 Int 022 exhaus Comments at the main PRVED214945 Still running Comp Cam 3 screen lets you describe Short Block Cam amp Heads the engine itself These Type 4 Stroke Bore are the same comments Cylinders Stroke Fi nn Engine Rod Length C R Cid i 407 20 cid 6674 1 ccs Paid ct Most specs in this screen are Crank Wt amp Descr bs Fuel Delivery Carburetors for recording information only Flywheel Wt amp Dia _ jbs Jh Carb s 850 Holley and are not used for any Igniti Fuel Setting I calculations You can enter sania most anything you want or Distributor Manifold leave them blank Spark Plugs Rapidfire 7 Headers Gap Timing Mufflers N A M Help Type in most any comment to describe the exhaust system and mufflers if any No entry is required p 38 32 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Figure 2 15 Suspension Details Log Book Screen is Suspension Details xi Back File Help l Shocks and Springs Shocks Jounce Rebound Description Right Front 2 Bilstein 33 Left Front 2 Bilstein 33 Right Rear Bilstein 44 LeftRear 1 67 Bilstein 44 Tires PSI Description Tru
249. s the Read button was described above 41 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 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 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 here changes the labels in the table 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 Il Analog Channels The analog channels for the DataMite II are calibrated much the
250. s very high numerically over 4 0 or you if second gear gives jumpy or noisy curves Since you have a 3 08 axle and the tires do not spin when you stab the throttle in 2nd gear you decide to try 2nd gear Similar analysis is possible with automatic transmission vehicles However two aspects of automatic transmissions make it less accurate e The RPM range the engine goes through during full throttle tests is generally smaller especially with high stall converters e There are more power losses in the converter and transmission which are more difficult to estimate For these reasons the data especially torque is not as accurate with automatic transmissions Check Out DataMite with Setup Mode Before doing any tests you check out the RPM signals by putting the DataMite in Setup Mode as outlined in Example 4 1 Recording Acceleration Data 1 Press the Clear Memory button to bring the DataMite out of Setup Mode and go into Recording Mode You will notice the Record LED is On indicating you are recording data You let the DataMite record this non race data while you stage at the drag strip 2 You watch the Christmas tree and launch in first gear then shift nearly immediately to om gear Remember you are not racing so you can take your time After you shift to 2nd gear you apply the brakes to lug the engine down to 1000 RPM with the clutch fully released foot off the clutch pedal The vehicle will be rolling slowly Fo
251. 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 If 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 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 not yet available 42 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions DataMite II Switch and Timer Channels The next 4 channels are On Off switch channels These are useful for recording things like if 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 samplin
252. se 3 menu options let you save open recall and delete combinations of scale settings for standard types of graphs you often make Graph Scales The current scale limits are Open SAved Scafe Settings Save Current Scale Settings i loaded when this menu opens RPM Data Time Data Distanee Change any or all these to most Max RPM 4500 Max Time sec 15 Max Distance ft any value you want Min RPM Min Time sec fo Min Distance ft Click the Turn Autoscaling Off Max Recorded Y Data Max Y Data 7000 button to turn Autoscaling Off to Min Recorded Y Data Min Y Data fo enable changing specs in this menu AutoScaling ON computer picks scale Click on OK to have the graph AutoScaling OFF use specs given above redrawn to these new scale C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Time Aligning shifting Graphs Many times you may want to realign graph with respect to another for example to line up the start of a run a shift etc The program allows you to shift advance or delay one test over another on the graph as shown in figure 3 19 Figure 3 19 Showing Options to Shift Data from 1 File Over Another File Example of Graph before Time Aligning Example of Graph after Time Aligning Back File Format View Graph Type AddTest History Log Single Test Help 3 Back File Format View Graph Type Add Test History Log Single Test Help i lol El pe eeel l
253. show Yes or Click here to specify which run or Some tests marked Yes remove Yes Tests runs to graph if more than 1 run in marked Yes will be this test may be at the bottom of the hed if th Log and not be visible now graphed if there is room typically not more than 24 graph lines total 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 next section discusses lists and discusses several other features from this screen including e Printing Eliminating Scale Multipliers Displaying Comments and or Density Altitudes for all tests graphed Single or Dual Cursor s to pinpoint the value of a particular point or section on the graph Changing titles and legend names Changing the scales to zoom in or zoom out Time Aligning moving one test forward or backward in time or distance for better comparisons 89 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output Printing Figure 3 11 shows the options for printing graphs and how to access these options Figure 3 12 shows the screen for changing the Windows Printer Setup Figure 3 13 shows how you can add information to a graph printout by clicking on Format then Edit Printed Comments and Data Output Figure 3 11 Printing Graphs Clicking on the Printer button is the same as clicking on F
254. st Conditions menu where this data is contained You can select either std or Dry Density Altitude in the Preferences section Run Time and Date This records the time and date at the time you downloaded the test from the DataMite When a drag race run 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 Track Length Is the length of the race track either standard 1 4 mile 1320 ft 1 8 mile 660 ft or some other length Click on this item to display the Test Conditions menu where this data is contained ET and MPH Is the length of the ET elapsed time and finish MPH for this particular run which you have entered into the Test Conditions screen Click on this item to display the Test Conditions menu where this data is contained Test Comments 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 Englishtown or Johnson in the Test Comments Help The help frame will describe what ever portion of the screen the mouse has passed over or clicked on C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 1
255. st 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 end itself e St oe te oie bo 1 1 1 e S 1 1 i E E EAR 71 Time sec 69 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions iyo cliGk oa BAN thea alee Beaute Figure 2 47 Options Presented When You Click on OK or End of File you will be presented with a keep this section graph screen showing Engine RPM for the this entire test Click and drag the mouse to Save This Section to New Name x IN Do you want to save this section of test starting at 1 seconds and draw a square frame around the portion of the test you want to keep The rest ofthe test will be deleted When you are satisfied with the section you ve drawn click on OK keep this section to be presented with the REEDOS CFG click on Yes options shown in Figure 2 47 extending to 17 seconds to the current file name 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 be saved e This is the method used to break up 1 test i is Cancel into several smaller tests In this case shown you would save this section to a new name perhaps
256. stions and trying out new features and electronics Table of Contents Chapter 1 Introduction 1 1 Overview of Features 1 2 Before You Start 1 3 A Word of Caution 1 4 Getting Started Installation 1 5 Example to Get You Going Chapter 2 Definitions 2 0 Basic Program Operation 2 1 Main Screen test data input 2 2 Preferences 2 3 Test Conds 2 4 Engine Specs Pro version only 2 5 DataMite Specs 2 6 Dyno Specs 2 7 Current Readings 2 8 Calculation Menus 2 9 New Test Screen get data from DataMite 2 10 Edit Test File Options Chapter 3 Output 3 1 Reports 3 2 ASCII Data Files Pro version only 3 3 Graphs 3 4 Printer Output 3 5 Data Libraries 3 6 Filter Test Files Pro version only 3 7 History Log Pro version only 3 8 Send Data Pro version only 3 9 Run Log Pro version only Table of Contents cont Chapter 4 Examples Example 4 1 Installing the DataMite on a Vehicle and Recording a Drag Race Run Example 4 2 Analyzing Drag Race Data Example 4 3 Measure Tq and HP From Acceleration Appendix 1 Appendix 2 Appendix 3 Appendix 4 Appendix 5 Index Accuracy and Assumptions Hardware Installation and Operation Troubleshooting Data Recording Backing Up Data Calibrating an Analog Sensor 117 119 135 147 153 155 165 171 175 181 C Performance Trends Inc 2001 Drag Race DataMite Analyzer Chapter 1 Introduction Chapter 1 Introduction 1 1 Overview of Featu
257. t The frontal area is the area in square feet the vehicle s silhouette occupies when viewed from the front Use the formula in Fig 2 28 to estimate frontal area Frontal areas are in the range of 5 sq ft for a motorcycle to 20 sq ft for a small passenger car to 30 sq ft or more for a full size pick up truck Also see Section 2 8 6 for calculating Frontal Area sq ft by clicking on the Clc button Track Width Frontal Area sq ft Vehicle Height in X Track Width in 144 49 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 29 Picking a Type of Example Transmission Transmission Load Example Transmission Type 2 Transmission Preview Click on down arrow button to pick a type oftransmission Select Name Manl Saginaw 4 Spd no lines one of the User Defined types and you can enter most any specs Clutch Converter Clutch in this section If you select one of the pre programmed Se az Manual example transmissions these example specs are loaded However oe 2 2 201 if you change any of these pre programmed specs the Type of Gear 3 1 35 the Transmission is converted to a User Defined type Gear 4 1 Do you want these transmission specs loaded Clutch Converter Click on down arrow button to pick a type of coupling between the engine and transmission or drive axle if no transmission either a friction clutch or torque converter This affects how th
258. t 1 95 178 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 Figure A5 7 Calibration Table for Non Linear Sensors Choose this Sensor is Other RPM Specs Type for entering a calibration table RPM Sensor Specs Se Sensor Type Analog Sensor Specs 1st Value engineering units fo 1st Value freq hz Read 2nd Yalue engineering units 2nd Yalue freq hz Read eva Note Pick the location of the sensor and of magnets Resort Rows Read DataMite or targets if a different type of sensor is being used on the rotating component Clear Row Insert Row Delete Row Clear All Rows Counts 179 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 180 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 4 Link Calculator 111 112 113 177 Accelerometer 39 42 47 71 79 129 156 169 Accuracy 7 3 20 21 23 25 27 31 35 37 39 50 52 60 61 63 71 73 79 80 112 128 132 136 147 148 150 151 152 153 157 Add Test 88 136 141 142 Advanced 18 104 107 Air Temperature deg F 26 All Data 77 78 86 Altimeter
259. t 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 2000 Dyno DataMite Analyzer Chapter 3 Output 97 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 98 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 4 Printer Output The Drag Race DataMite Analyzer can print the 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 20 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 20 Printer Button and Print Menu Command Options Report Screen A Drag Race DataMite 3 2 Performance Tre Click on Print or the Printer button 5 Back Print Report Types File History Log M shown hidden here for the Printout Options menu shown to the right Print Results Windows Printer Setup This options lets you choose the rogram Printer Setup printer or printer driver being used by Windows and also page orientation is Print Reports Options Test Results Report Options X Include Trac Main Log Book Summary X Include Test Comments Suspension Summary Request Report Comment General Engine Specs Include Test Summary Engine Fuel Metering
260. t 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 Aj S ag Race DataMite 3 2 Performance Trends grand am Edge 2 CFG File Edit Graph Report TrackConds LogBook DataMite Vehicle Preferences Help Send Click on test Run 1 file you want to Open Test File open 5 Tests in Library Chosen File Grand Am 1 CFG 69 GTU CFG Previn change to a different run Grand Am CFG Engine tt Preview shows ae a Ede vei Typs of Run Drag Race Runs it was run with JRDAGSTA CFG Ajit Temp 74 Track Len 1 4 Mile the New Air Densty 1533 MPH 138 58 D Air Dnsty 1850 EA 72 Wind MPH 4 60 ft 1 449 converter Time 6 02 pm Date 08 19 2060 Click on Open _ Folders to open this TE d old Tip Click on a List All Files by File Name ee I different Folder test file List by File Name ingefde Run Date ExamplesDR 4 name to display all List by Run DatgA clude File Name examplesDyno the tests saved Files Not Fipefed all files listed faaiher eee tnar Folgar G Opef Filter find Advanced gillespi z Delete Add Click on the Cancel Help Delete Right click in list above for more Folder Options foldet here fe 725 6340 62 which 28 6710 68 contains the 18 31 7044 74 25 13 00 13 25 38 50 63 75 8B test run to be 5 L m opened MStart G Examples H DTMDragMA y DTM20 Micr DragRace D
261. t all entries blank if you wish Figure 2 10 Main Log Book Screen There are several ways to branch out from this screen to other more detailed w Drag Racing Log Book Log Book screens Back File More Engine More Suspension Converter User Defined Help For exam ple the Race Details Tires amp Suspension Suspension screen is Track amp Event Quaker City PM LR PSI RR PSI ae Run ji fist time run i this button Engi Lane Right Win Time Trial x ee Traction Below As Track Temp i Een om _More MyR T 32 MyDialin Start RPM 2000 Stall Fnsh ems you are no Tree Full 500 7 Bright Sun gt Vehicle Response Time interested in or that Opponent Method RAT zii do not apply to you R T 592 Dial In fo a can be left blank Interval and Segment Times ET 11 644 Hame Update en _ oa nun a Cross Over No Setting fo DataMite ma 561 Ea ma The DataMite s z T 3 analysis can be onverter User Defined Actual Seg 3 066 2 6377 2 245 2 055 Fine tuned based ae Peru ei in DataMite 1 026 12635 2323 2 008 on the run s actual M Halp Corr Factor 95 Cie On Brks No 7 ET and 60 ft times T Note the correction Entar the name of the track and 4 description of the pone ever Click on the down arrow b itton to pick from 1 8 Mi MPH 174 Mi MPH factor derived here Track amp Events you have en
262. t for you to read and keep those individual instructions 1 Ensure All Pieces Were Shipped The standard 4 channel DataMite data logger system should be shipped with 1 hee DataMite module Important The standard DataMite module is NOT designed for Magneto ignition 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 DataMite Control panel with 2 push buttons Wiring harness with standard wheel RPM sensors Magnets for wheel RPM sensors Serial cable for connecting DataMite to your computer s COM port The larger 30 channel DataMite II data logger system should be shipped with 1 A me Re DataMite II module Important The DataMite module is NOT designed for Magneto ignition 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 DataMite Control panel with 2 push buttons RPM harness with standard wheel RPM sensors Magnets for wheel RPM sensors Serial cable for connecting DataMite to your computer s COM port Power cable for 12V power Configuration diagram identifying which of the 16 analog channels are activated as thermoco
263. t 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 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 DTMDATA 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 DTMDATA folder or just 1 particular test You would do this the same as with copying the entire DTMDATA folder just click on the by the DTMDATA folder to display the folders under DTMDATA 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 ofthe Windows Explorer screen Then right click on the 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 Drag race run to be copied For example if the test f
264. ta from the box in the DataMite software the program shows which segment was the last one recorded You can select to download this segment by default or any of the other segments recorded In the program if you click on DataMite at the top of the Main Screen you will display the DataMite configuration screen Here you tell the DataMite program which can in turn tell the DataMite box what channels you want recorded at what rate and into how many segments You also tell the DataMite which channels are analog inputs and which are thermocouple inputs 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 Sensor and Calibration If you click in the Sensor and Calibration column you will be presented with one of the screens shown if Figures 2 21 if you click on the top row for Engine RPM or 2 22 for most other rows other RPM channels In each screen you choose from the options below and the calibration descriptio
265. te Data Analyzer 2 0 Performance Tsznds_ YAM 1000 CFG File Edit Graph Report TestConds Engine D taMite Dyno Preferences Help Click on Data Mite S x this NEUE ANO pons column in Test amp E Back File Curent Readings Help fe row for channel with the Channel Settings shock travel sensor installed Engine RPM Yes EngRPM 2 Frequency Yes Chni 2 Other RPM 1 Magnet 3 Frequency Yes Chni 3 Thermocouple Frequency Chni 4 Not Being Used Tip Help Click on most anything in the Channel Settings grid to Click on the down arrow button to select the change it For Used you will toggle between Yes and type of DataMite you are using You choice No For Data Name and Sensor and Calibration you here will affect which specs are enabled or will be presented with new screens to change the disabled in this menu p 15 current settings C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies In the calibration screen of Figure A5 6 select Analog Converter as the Sensor and Rt Rear Shock 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 3 Obtain a Zero Reading A dyno torque calibration is best done with the engine not connected to the dyno Then
266. te module is not designed for Magneto ignitions or uneven firing engines Note It is designed for small engine magnetos like that found on Briggs amp Stratton or 2 stroke kart engines 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 Wheel 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 When the harness is strung and all cables connected plug in the DataMite module and the control panel You should see the Record LED light up on the control panel to indicate the DataMite is powered up You may see a delay of up to 12 seconds between power up and an LED lighting on the more memory 512K DataMites 159 Appendicies Drag Race DataMite Analyzer C Performance Trends Inc 2002 Cc A 2 2 2 oO Cc I D a 2 2 cC gt iy Q 2 2 gt F N N lt o D LL Z JeuueYD 0 s of osues siy sajyeuBisep Buiqny Yullys YA xod ym ja ym uo psseds Ajueas peuajsey Jau ew p 40 Z peg payeouqey uo pajunopy Josuas ja yM U04 JauUeYD o sao Josuas si sayeuBisep Buigny Yul ys yoeIg Axoda yyim ja ym uo peseds AlusAas peuajsey
267. ter and Tire Slip e 0 Tire Growth e Calc Gear Ratio which matches the transmission gear ratio If they are just slightly off 5 or so adjust the Tire Radius as necessary to get them to read 0 If you are getting negative Tire Slip or Tire Growth it sounds like the front and rear wheel signals are mixed up e Check that the RWD FWD AWD spec is correct for your car in the Vehicle Specs e Check that the Auxiliary RPM specs are set correct in the DataMite and Data Specs menu Note The white shrink tubing is on the Auxiliary RPM 1 sensor e If you are off a lot be sure you not specifying a DriveshaftSensor in the DataMite and Data Menu when you are using a wheel sensor or vice versa Note The following conditions are normal e Clutch slip can go either positive or negative during shifts when the clutch is disengaged e Converter slip can go negative when you are engine braking e Tire growth can go negative during the launch or shifts This is indicating tire squat or slip 170 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies 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 r
268. ter most any type of data you want either numbers or vfords If you right click on a title box originally A G will still be displayed Its marked User Defined you can enter a Title for that partfcular data type which will be now used for this just that th il b and all past and future records Just that the name will now be Trans Heater Setting Enter a Title Enter a title for this Data Record a name from 1 to 25 characters Important All previous data recorded wi the name Trans Heater Setting will now use the new name you enter here 34 C Performance Trends Inc 2002 Drag Race 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 Figure 2 18 Typical Note on Master DataMite Specs Master DataMite S pecs Settings DO NOT Match the Master DataMite Specs A critical concept for DataMite Specs is the These DataMite specs were used for the current test idea of the Master DataMite Specs When you download data from the DataMite you TESTCH4 CFG are using a particular DataMite Setup with There are 2 settings which do not match your current Master DataMite Specs certain sensors and calibrations A the DataMite you use to record your data calibration describes how the DataMite should convert
269. ter set to Front Acceleration then Acceleration Gs can be used to determine things usually calculated by Driven RPM Usually Driven RPM is more accurate than an Accelerometer however some tracks events do not allow front wheel RPM to be measured Note for Calculations based on Driven RPM If the front wheels leave the ground at the start of the run the program then looks for when they touch down Driven RPM jumps up and fills in what it should have been if the tires had stayed on the ground This is what the program uses for calculations which depend on Driven RPM However what is graphed for Driven RPM is the actual recorded data Drive Wheel Drive RPM RPM of the driving wheel or driveshaft rear wheel or driveshaft on a rear wheel RPM drive car Because this is directly tied to the transmission output it can be erie to determine clutch or converter slip trans gear ratio etc MPH Acceleration Rate Accel ed Is Vehicle Acceleration in Gs 1 G is 22 MPH increase every second or 32 2 i ft sec increase every nn This is the same acceleration of an object dropped in free fall or the acceleration of gravity This is based on Driven RPM or Accelerometer data if available Calcd Trans Gear Gear Ratio Is the Gear Ratio based on Drive RPM and Engine RPM and Final Drive Ratio Ratio if necessary Tire Slip Tire Slip Is the tire slip based on Driven RPM Drive RPM and the tire diameters and final drive ratio if necessary This assum
270. tered in the past p xx Comer 76 MPH 1577 HP If some data is not already listed in these Log Book Screens you can add them here as User Defined records Either Clutch or Converter information can be saved here based on the Clutch Converter setting in the Vehicle Specs menu From the main Log Book screen shown above you can branch out to 6 other Log Book Details screens shown in this section Some important notes about the Log Book entries include e There is only 1 set of Log Book entries for each data file The DataMite lets you record from 1 to several passes before you have to download the data to the computer During downloading the program finds the beginning and end of each run If more than 1 run is found the program gives you the option for breaking each run into a separate test file If 29 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions you say Yes which is recommended by the program then you will have a separate set of Log Book screens for each run or pass If you keep all runs together then you still have only 1 set of Log Book screens and the data you enter in the Log Book screens could be for any of the several runs This would be quite confusing e The Log Book entries are for your information only You need not enter anything in the Log Book ever e The entries of ET 60 ft time and MPH in the Log Book main screen are linked to the ET 60 ft time a
271. the bleaa Tees Lede De beled za ruivice set sce complete test was displayed as Engine RPM Clitch Slip Distance vs Time 3 eel f coe e Br determined by the citch Sip x 10 program This is 960 0 PPistance called auto scaling 880 0 i i rgrandam kdge 1 1 Engine RPM X 1 800 0 f Citch Slip x 10 Another way to i oe zoom in is to click sa on Set Scales and 640 0 f gt manually enter the scale limits Pro aa version only 480 0 400 0 320 0 240 0 The portion of the 160 0 screen outlined is Figure 4 25 with the mouse now fills the entire graph screen 10 00 11 0C Time sec Figure 4 27 Time Aligning Two Time Graphs Click on these Time eee i Align buttons to shift w DataMite Analyzer 3 2 grand am 1 CFG one of the tests Back File Format Yiew me AddTest HistoryLog Single Test Help over another The FERNE IDDDBIECHEIEZIEET TEEN amauta hits Full View i Specify Scales aes ip Distance vs Time shown in the grandam i Al 1040 0 Show Adjusted Timing Engine RPM x 1 320 legend Grand Am Show Original Timing Citch Slip x 10 320 1 had to be shifted 60 0 2 an Reset Timing to Original Timing Distance 320 back 32 seconds 880 0 Timing Shift Size 001 Seconds for good alignment grand am edge 1 1 zu Engine RPMx 1 000 f with the Edge test 800 0 a 1 Seconds Cltch Sip x 10 000 g Correction Factors Distance 000 720 0 Test Comments el 64
272. the dyno run Note that editing out noise spikes and having the program find the beginning and end of the drag race runs can also be done at anytime in the future Click on Edit at the top of the Main Screen See Section 2 10 Editing Tests Figure 4 13 Messages After Download DataMite Data Message stating that data looks clean or free of what appears to be bad data points Message to acknowledge data was read from the DataMite DataMite Analyzer DataMite Analyzer Downloaded engine Chnl 2 Chnl 3 Chnl 4 data 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 A 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 File Edit Grapl w Summary of Lap Run Analysis xi Details The DataMite analyzed GRAND A4 DAT 155 Runs As Drag Race Runs
273. the current Exh Temp x g g Vehicle speed in MPH 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 Make Graph Help Cancel menu command to open up the graph options menu shown in Figure 1 4 The graph settings shown in Figure 1 4 are for some recorded and calculated Select to graph vs MPH calculated from front wheel RPM drag racing data vs time time on X axis here 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 ofthe Figure 1 5 Graph from Options Selected in Figure 1 4 ren incladie tie Help Back File Format View GraphType AddTest HistoryLog Single Test Help command The Help command at SE BELT ee PN a e this screen and most screens provide a good background on a what the various options are For j Click on now just click on Back at the AVRE Ne Help for an upper left to return to the Main f i r overview Screen of your options for this screen A Test File is actually made up of 3 files 1 The DAT file data file which is the data recorded by i i Click on the DataMite Back to 2 The C
274. 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 25 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 Il Analog Channel 3 is enabled DataMite Il 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 25 Save to DataMite Il This option saves the current DataMite configuration on this screen as the Master DataMite specs and then loads this configuration into the DataMite IT box Current Readings Click Current Readings to display the a 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 drag race run like a tachometer See Section 2 7 for more details 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
275. ting Slide button right for more History info 81 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output a T T T Te A As Figure 3 4 shows Multiple Tests are possible by clicking on Multiple Tests or History Log at the top ofthe Report screen You select which tests to include in the comparison by clicking in the Report column of the History Log This is the same History Log as is used in the Graph screen to do comparison graphs of 2 or more tests To go back to a single report of just the current test click on Single Test at the top of the Report screen or remove all the Yes notations in the Report column of the History Log Removing a Yes is done by clicking on the Yes that is already there 82 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output 3 2 ASCII Data Files Pro version only You may want to use the results from the Drag Race DataMite Figure 3 5 ASCII Files Options Menu Analyzer in other software packages This could be for additional Click on File from graph capabilities statistical analysis data basing etc Once you have Report Screen for created a report as shown in Section 3 1 click on File to write the ASCII File menu results to an ASCII file with a name of your choosing The ASCII File command is possible any time a report is displayed on the screen K Drag Race Datakiite v3 2 Performance Trends gt
276. tion only Click on the down arrow button to its right to change the Track amp Event to one you have already entered or type in a new one and it will be saved 4 Run Description Pro Version Only is the Run Description for the Log Book and for the Run Log listed down the left side of the Main Screen This is for information only Click on the down arrow button to its right to change the Run Description to one you have already entered or type in a new one and it will be saved 5 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 6 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 Drag Race Run probably the usually choice e Accel to measure torque and HP very useful for engine testing in the vehicle 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 other versions of the sof
277. tions tor your Fuel System Type s Single Holley 850 4 Barrel From Seq 119 Se runs you have Left Right Power Valve Air Bleed Left Right P ly Left Right selected a Front Pri 07 Holey soaz an i e aseline run in Front Sec 00 None C this case Sequence 119 in the Run Log down the left side of the Main Density Alt 3500 ft Dry Density Alt 3875 ft Dns Alt 2616 ft D Dns Alt 2826 ft Fuel System settings for the l Other Fuel Specs current run and the same See Engine Comments M Help explanation in this 400 CID bored 060 Enter the system s fuel pressure You will have to section Checked lash this run set to 020 Int develop a system for consistently recording pressure at some point Idle in the pits 4000 RPM in neutral in the pits going through the traps at full power etc p xx Engine Comments can be most anything you want but are kept separate from the Main comments on the Main Screen 30 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Fuel Metering Most all Fuel Metering inputs are for info only However if you want the program to accurately recommend different jet sizes for weather changes these inputs are critical Jet suggestions are determined by you picking one particular run the Comparison run that you always want to match The assumption is that this run had the carb jetted exactly correct for that run s
278. 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 graph if from the History Log you will get note saying the file can not be found 107 C Performance Trends Inc 2000 Dyno DataMite Analyzer Chapter 3 Output You can print the History Log on a printer by clicking on the Print menu command Note that the History Log will be most readable when the Page Orientation is in Landscape setting ET MPH 60 Ft etc are handy to remind you what a run was and for comparing different runs History Log at Graph Screen At the Graph Scree several options are available to graph selected tests from the 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 e Choose to Graph certain Test Results by clicking on the Graph column to insert a Yes there Tests mark
279. tware 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 time 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 will be from the current Master DataMite Specs which should match your current DataMite setup This will be the same no matter what previous test you are starting from 66 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 67 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 68 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions 2 10 Edit Test File Options Figure 2 45 Edit Options at Main Screen Screen for 3 very important options Test File you will Edit for editing the DataMite s test data as shown in Figure 2 45 For all 3 fa Drag Race DataMite 3 2 Performance Trends broged3 CYG of these Edit commands you will File Edit Graph Report Track Conds LogBook DataMite Vehicle Preferences A ET WIE EZALE Use Engine RPM channel t test which is named in the square n brackets at the top of the Main Redetermine Beg End of Runs Use Frequency Channel 2 137 Edit Out Noise Spikes Use Frequency Channel
280. uples or 0 5 or 0 10 volt inputs Common DataMite Options Inductive Pickup and wiring harness for measuring engine RPM on single cylinder Briggs or other cart engines 110 VAC to 12 VDC power supply so dyno system can be powered from AC wall outlet It is recommended you power your DataMite from the same power as you power your computer for example from the same power strip ideally with surge protection 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 155 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Appendicies Tr Te a EFF running the engine and have the serial cable attached to the COM port This is something you may often want to do to watch the Current Readings Thermocouples to measure temperatures analog converter required for standard 4 channel DataMite Pressure sensors analog converter required for standard 4 channel DataMite Fuel Flow sensors Weather station for correction factors or air density measurements In addition you may need e Epoxy or some other method of mounting magnets to the wheels or driveshafts 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 e
281. utput at these 2 conditions You can click on the Read buttons to have the DataMite actually read the sensor values for these 2 conditions Custom user supplies table Calibration Sometimes you have a sensor where the output is not linear not a straight line Then you can select the Type as Custom user supplies table and you can enter in most any set of 10 calibration points you want See Figure 2 24 Figure 2 24 Custom user supplies table is Analog Sensor Specs Calib Cstm Table 5v 0 8 178 8 2710 5 3 13 Analog Sensor Specs Type Custom user supplies table gt AZF CO Analog Sensor Specs 1st Value Engineering Units 2nd Yalue Engineering Units 2nd Yalue volts Data Name 1st Value volts Signal Based On 0 5 Volts 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 Keep Specs Help Cancel Print Sensor Calibration Table Pead DataMite rn Rows Clear Row Insert Row Delete Row Clear All Rows Enter pairs of calibration points here and the response curve is graphed to ensure the calibration looks correct If this calibration is for a DataMite II then the signal can be based on different scalings of the particular channel These buttons let you organize the data and read the DataMite s signals just a
282. verter specs suspension specs but not things like segment times reaction time shock travel your opponent s name and reaction time etc See Section 2 4 for more details There are six critical specs listed separately at the top Most of these must be filled out before you can start the new test The program usually fills them in with default values based on the current test 1 File Name for New Test is the file name the program will create for saving the Test 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 For this example type in the name Grand Am 1 for this first test of the Grand Am When you click on Start New Test the program will add the CFG extension to produce Grand Am 1 CFG 2 Run Pro version only is based on the last test you downloaded from the DataMite not the Run number of the current test displayed at the main screen The DataMite program s Run Log shown down the left side of the main screen lists tests in the order they were downloaded from the DataMite Each new test you download is incremented up by one based on the If you manually change the Run at this New Test screen or in the Log Book Screen that will be the Run that the next test downloaded will have its number based o
283. w number like or 2 This can produce more reliable readings on this screen If you want smoother dial operation and more accurate less lag Higher numbers produce readings then specify a higher update rate faster updates and smoother dial actions Lower numbers can fix reading problems you want in 1 second 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 52 C Performance Trends Inc 2002 Drag Race DataMite Analyzer Chapter 2 Definitions Figure 2 32 Current Readings Gauge Settings Real Time Options Range Click on the down arrow button to select the range for either gauge 1 or 2 You can select from the pre programmed ranges provided or select the top choice of User Specified Then the User Specified Max and Min specs become enabled so you can enter or change them User Specified Max If you set Range to User Specified this spec will be enabled Enter the highest number you want to see on then gauge here The gauge dial is divided into 6 sections It is less confusing if the difference between the User Specified Max and User Specified Min is evenly divisible by 6 For example if you set User Specified Max to 60 and User Specified Min to 0 each gauge increment will be 10
284. wer case Has this relationshi Is Between z Include this condition also To what entered here N And 4000 TrackConds Dry Density Altitude M TrackConds Type of Test TrackConds Track Length ft TrackConds Finish MPH TrackConds E T sec Has TrackConds 60 ft sec TrackConds Wind Speed MPH this relationship C Include this condition alsa To what entered here TrackConds Wind Direction ha Show only files fitting these limits urn Off Filtering show all files a aa Click on this button to return to the File Open menu which will now show all test files Print list of all files fitting these limits z Search All H amp H Folders hewi Select All ASON johnson De select All Josef bd letters the same bowtie BOWTIE BowTie Check here to include a 2nd condition This enables specs in this section 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 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

Drag Race DataMite Analyzer V3.2 for Windows User`s Manual

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