DRAG-SPORTSMAN N2O
Contents
1. DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 them The driver simply has to accept the fact that the microprocessor in the system is much faster than his her reflexes In fact the system detect wheel spin in 1 100 of a second and the microprocessors used process 5 million commands a second This system is not simply a few lines of code added to an existing fuel injection or ignition system and called traction control This system utilizes a patented method and multiple high speed processors to very accurately and effectively monitor rates of acceleration to determine wheel speed and tire slip In fact Davis Technologies systems are at least 20 times faster than other systems which are integrated into the fuel injection system Our systems only job is Traction Control DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 INSTALLATION Installation of the system is very simple It is very important to make all connections correctly Improper installation could result in poor system performance or damage to the unit Keep all wires away from any spark plug wires and coils or other sources of electrical noise and heat The unit should be mounted away from any sources of electrical noise or high heat It can be easily mounted using the mounting flanges on each side Make the connections as follows 2 Pin Connector power in 1 Connect pin A RED wire to 12v positive 2 Connect pin B BLACK wi2. with respect to any products manufactured sold supplied by Davis Technologies LLC DAVIS Davis shall not in any event be liable for incidental consequential or punitive damages of nature whatsoever including personal injury and lost profits It is acknowledged that participation in any motor sport may result in serious injury or death and that the risk of such personal injury or death is assumed by any person who uses any products manufactured sold or supplied by DAVIS DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 INTRODUCTION We would first like to thank you for your purchase of our system We believe it is the best system available to you on the market today This system balances effectiveness with ease of installation broad field of uses and cost As with all technical devices such as engines shocks carburetors clutches etc the product s performance is based largely on your ability to use it properly Testing in controlled circumstances will help you determine the proper settings for your application and your situation Testing is very important since it will help you utilize this product to its full potential Please read all of the instructions and information thoroughly before attempting to install or use this product DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 How DOES IT WORK This system differs from other systems that you may be familiar with because it does not use any ex
3. LED will blink for the first digit followed by a short pause then the LED will blink for the second digit 8500 RPM 8 5 Blinks zeros are indicated by shorter blinks For tech support only 6 After a short pause the LED will flash for the value of Trigger Count 8 Triggers 8 Blinks 17 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP V3 2010 FACTORY RESET All settings can be restored to Factory Defaults at any time by following these steps 1 Set the Setup dial to 5 Hold down the Test button Turn the power On While holding the Test button down move he Setup dial to the position ake 5 Release Test button The LED will flash rapidly to indicate the Factory Settings have been restored 18 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 APPENDIX A Another advantage of these systems is that they are actually able to detect wheel slip better than most wheel speed sensor based systems The reason for this is that our systems monitor the rotation of the driveline With 8 triggers on the driveline you can measure slip within 1 8 of a rotation Now factor in a 5 1 final drive rear end ratio and tire rotation can be measured within 1 40 of a turn that is about 2 3 inches on most tires The fact that the driveline is turning much faster than the wheels amplifies the slip at the driveline making these systems much more sensitive than the ty
4. SETTINGS The current setting for the different adjustments can be verified at any time using the Test button and the LED This process is divided into 2 sections Standard and Advanced The different sections are chosen by the position by the dial when the verification is started The Standard values can be verified at any time by following these steps 1 Turn the power On 2 Set Setup dial any position from 1 7 3 Press the Test button and HOLD DOWN 4 The LED will glow solid for 8 seconds as in the Forced Activation Test then blink to show the firmware version 5 Next the LED will flash the value for the Buffer A setting of zero is indicated by a short blip of the LED 6 After a short pause the Led will flash for the value of Sample Rate followed by a pause 8 Lastly the LED will Flash the current Self Learning status value For tech support purposes only The Advanced values can be verified at any time by following these steps 16 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP V3 2010 1 Turn the power On 2 Set Setup dial to OFF 3 Press the Test button and HOLD DOWN 4 First the value of the Starting RPM is shown The LED will blink for the first digit followed by a short pause then the LED will blink for the second digit 1500 RPM 1 5 Blinks zeros are indicated by shorter blinks 5 After a pause The value for the Ending RPM is shown The
5. WWW MORETRACTION COM 90 30 80 40 70 50 TEST LED DAVIS TECHNOLOGIES LLC PAT 6 577 944 DRAG SPORTSMAN N20 FOR 100 9 20 et x w ELECTRONIC TRACTION CONTROL USER MANUAL TELEPHONE 828 645 1505 FAX 828 645 1525 WWW MORETRACTION COM US PATENT 6 577 944 2 HOW DOES 4 2 2 2 gt 4 gt 25 2 SENSOR RPM WINDOW 3 FORGED ACTIVATION 11 14 TRIGGER COUNT DEFAULT 8 sesanan 14 STARTING RPM DEFAULT 1 500 RPM CHECKING SETTINGS FACTORY RESET 1 APPENDIX 19 RING amp SENSOR INSTALLATION 20 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 DISCLAIMER This product 1 sold as 15 No warranties express or implied including any implied warranty of merchantability and any implied warranties of fitness are made
6. nd sensor if used 1 Set the Setup dial to 0 2 Rotate the RPM trigger The LED will flash each time a trigger is sensed The unit is not active in any other way and no corrections will be made The LED will appear to glow if triggered quickly The data output will also trigger RPM WINDOW TEST This mode is useful to check that the system is reading the RPM signal correctly To prevent the progressive controller from unintentionally activating the traction control s Yellow wire should be disconnected from the progressive controller 1 Set the Setup dial to 9 2 Start the engine and accelerate the driveline 3 When the driveline RPM is within the window of 1000 to 3000 rpm the LED will glow solid 8 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 and the unit will make a large correction FORCED ACTIVATION TEST This test is useful to check the cut function The progressive controller must be configured prior to executing this test Activate the Traction Control option in the progressive controller s software and set the ramp to 100 and uncheck the RPM Connected box for this test This is also useful to test the connections to a data system if used 1 Set the Setup dial to any setting between 1 to 8 Turn on the power to the unit the LED should begin to flash Arm the nitrous system with the Fuel and Nitrous systems de pressurized Close the bo
7. ondition is corrected the N20 is ramped back in until the original progressive ramp is re established The RAMP IN is used to control how quickly the 20 is ramped back in after the slip condition is corrected The time is adjustable from 0 10 to 3 10 seconds 10 steps 3 1 10 second the amount of power reduced during a slip condition is too great then a smaller CUT may be required If the tires recover from a slip condition and immediately slip again then a longer RAMP IN may be desired The light on the system is useful in determining the settings A data acquisition system is preferred Once the driveline has crossed the Starting RPM default 1500 rpm for the first time the light will flash when the system is making a correction With testing and good record keeping you should be able to easily predict the necessary settings for 13 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 current conditions The settings will not vary much once you determine what works best for your setup CONFIGURING TRIGGER COUNT DEFAULT 8 The unit must be configured for the number of counts it will receive per revolution of the driveline Once set the value will remain until changed by the user To change the value follow these steps 1 Set the Setup dial to 4 2 Hold down the Test button 3 Turn the power On 4 While holding the Test button down move the dial to the desired number of t
8. pical wheel speed systems Put simply if the tires slip the driveline revs The only reason for the sudden increases in revs in the driveline is wheel spin Sensor based systems usually measure tire rotation about every 1 4 of a turn The front and rear are compared to each other to check for slip With a margin of error of 1 4 of a turn at each wheel it may take as much as 1 2 of a turn of tire slip for the system to react If a tire is allowed to slip a half a turn before a correction is made it is very hard to stop the slip A system that uses a preset percentage of slip between the rear wheel speed to front wheel or ground speed cannot compensate for these changing conditions that are inherent in all types of racing 19 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 RING amp SENSOR If using a Davis Technologies Ring amp Sensor use the following installation guidelines Sensor set to 065 gap on centerline 20 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP V3 2010
9. point is 4 Valid settings for Threshold are 1 8 0 turns unit off except for sensor test 9 activates window RPM test The LED on the system is useful in determining the settings Once the driveline has crossed 1500 rpm default for the first time the LED will flash when the system is making a correction If the unit seems to be making too many corrections then the Threshold setting may be too high If the unit does not seem to making enough corrections then the Threshold may be set too low Valid settings are 1 through 8 The higher the setting the more sensitive the traction control will be A good starting point is 4 11 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP V3 2010 Starting RPM is a user adjustable setting that allows the racer to set the point at which the unit Begins making corrections If the Starting RPM is set to 1800 RPM then the unit is active and monitoring the acceleration but not making any corrections until the Starting RPM is reached This may be useful to prevent the Traction Control from interfering with an already established launch setup 12 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 NITROUS CONTROL PARAMETERS The CUT is the setting that controls the amount of the Nitrous Oxide that will be cut This is the percent of N20 on the stage that the progressive controller is connected to only The percent that the stage is cut can be adjusted from 10 to 100 in 10 increments Once the slip c
10. re to ground 3 Pin Connector Sensor 1 Connect the pin marked A RED wire to the red wire on the sensor 12v positive 2 Connect the pin marked B BLACK wire to the black wire on the sensor ground 3 Connect the pin marked C WHITE wire to the white wire on the sensor This wiring is for sensors supplied by Davis Technologies DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 If another type of sensor is used check with the manufacturer to determine connections IMPORTANT The sensor must be capable of 15Khz resolution 3 Pin Connector Input Output 1 Connect the pin marked A BLUE wire to the Trans Brake wire Coming from the trans brake switch 2 Connect the pin marked B YELLOW wire to the Nitrous Controller Input 2 RED wire 3 Connect the pin marked C PINK wire to the data system or a LED to indicate when the system is making corrections 12v output through a 1K resistor This unit is designed specifically to work with the Nitrous Express Maximizer 3 NI w EXPRE lt NEXT GENERATION NITROUS SYSTEMS DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 TESTING After installation it is recommended that you test the system To do so please follow these instructions step by step Temporarily set the Cut dial to 100 and Ramp dial to 9 for testing SENSOR TEST This test is useful for setting up the trigger ring a
11. riggers divided by two example 8 triggers 2 4 5 Release the Test button The LED will flash to show the number of triggers the unit is now set to The Trigger Count must be set correctly for the accurate RPM calculations STARTING RPM DEFAULT 15 1500 RPM Once set the value will remain until changed by the user The RPM is set in 100 rpm increments example 1500 rpm divided by 100 15 To change the Starting RPM value follow these steps 1 Set the Setup dial to 3 14 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP V3 2010 2 Hold down the Test button 3 Turn the power On 4 While holding the Test button down move the Setup dial to the first digit of the desired Starting RPM example 1500rpm first digit 1 3000rpm first digit 3 5 Release the Test button The led will flash to show the value has been accepted 6 Now move the Setup dial to the second digit of the desired Starting RPM then press and release the Test button example 1500rpm sec digit 5 3000rpm sec digit 0 The led will flash to show the value has been accepted After about 1 second the LED will Blink to show the value that the Starting RPM is set to The first digit is output followed by a short pause then the second digit is output 1500 RPM 1 5 Blinks zeros are indicated by shorter blinks 15 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 CHECKING
12. ternal wheel or ground speed sensors Instead it uses a patented method that simply monitors engine speed or driveline speed to determine when wheel spin occurs This process is a very simple way to effectively detect wheel slippage and evoke a means of correcting the slippage In this case reducing the Nitrous Injected degrades the engine performance When the Nitrous is reduced the loss of power is instant and generally sufficient to stop or greatly reduce the wheel spin However there are limits to the unit It is not a Fix will not fix bad tune up or poor driving It will however help a good driver in a good car get the power to the ground better and make more full passes This allows the user to collect data to use to determine how to make adjustment to the car to get a better setup A full pass even if it is a few hundredths slow is very valuable compared to blowing the tires off 100 feet out For example if your racecar experiences a loss of traction around 300 the system will detect this and send a signal to the nitrous controller to reduce nitrous This will reduce the amount of torque delivered to the drive wheels and help to regain grip much faster than the driver can pedal the throttle With a little practice the system is easy to configure and use Typically after only a few test runs the proper settings can be reached Most drivers adapt quickly to a car that does a little of the driving for 4
13. ttle valve disconnect the fuel pump power and purge both systems With the engine off activate the full throttle switch and trans brake if used to start the progressive controllers cycle Quickly press the Test button on the unit until the LED glows solid The cut will activate for 4 seconds You will hear the solenoids change sound as the ramp is cut The data output wire pink will also be on for the 4 seconds of the test Note After the test is complete the LED will blink to show the firmware version DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 Note Be sure to restore settings that were changed in the controller software to race settings after test is complete If unit does not pass all test recheck all connections and test again 10 DAVIS TECHNOLOGIES TM DRAG SPORTSMAN MAP 2010 TUNING Rate Control Parameters Different tracks cars conditions etc may require different settings for the system to function effectively The dial on the unit is used for this setting The values are referred to as Threshold The Drag Sportsman incorporates a patented method to control wheel spin where the users sets a Threshold of acceleration that if exceeded will cause the timing to retard The sensitivity of the system is adjusted using the Threshold dial The Threshold controls the allowable percentage of acceleration allowed The higher the number the more sensitive the system is A good starting
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