Strain Gauge Gearlever - U.S. Auto Performance
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1. US Auto Performance LLC 9107 64th Avenue East Bradenton FL 34202 Direct 941 504 8686 Fax 941 458 4851 www USAutoPerformance com Contact Persons Geoff Mason US Auto Performance LLC Geoff USAutoPerformance com motorsport gearboxes Manual Strain Gauge Gearlever 132. different color in version 2012 and before See wire diagram below Driving direction Connection Diagram sexoqgseof ssodssozour motorsport gearboxes Yellow 5 Volts J Black Ground Gray Analogue Signal 2 5 Volts After 2013 different color See diagram above Manual Strain Gauge Gearlever 4 motorsport gearboxes Options Switchbox The switchbox converts the analogue signal of the gearlever to a digital signal for the Drenth display unit or a mounted ECU that is able to use a digital signal input for flat shifting The upper and lower threshold can be adjusted with the use of two potentiometers The switchbox is powered by 12V and converts it to 5v for the gearlever Wiring specifications connection diagram and threshold adjustment are described on the following pages en motorsport gearboxes Manual Strain Gauge Gearlever 5 Wiring specifications 12 Volts Can be shared with 12V from Drenth Display red wire Blue Ground Can be shared with ground from Drenth Display black wire When lever is in neutral position no forces applied the black cable will have an output of 2 5V This voltage will increase as the up shifting force increases The voltage will decrease as the downshifting force increases Can be shared with an analogue voltage input from the ECU l l When enough force is applied and the threshold is reached the green indicator LED will light up and the
3. the setting go to step 3 Make a new setting Your current setting is not correct You can change this setting by rotate the left potentiometer Figure 9 CW Figure 9 2 CWW Figure 9 3 If you changed your setting you can check your setting Push the gearlever forward downshift till the Green LED turns on Check the new value on the Voltmeter If this value still not is correct repeat step 3 Maximum value 2 3 V Recommended value 2 0V Save new setting in memory Pull the gearlever backward upshift with a force of 20kg 200N After 5 seconds the Red LED starts blinking Figure 9 4 Release the gearlever from pressure The switchbox works with the new setting for the downshift 3 0V Up shift 2 7V Too sensitive value 2 5V 2 3V Down shift nn Manual Strain Gauge Gearlever 9 motorsport gearboxes Gearlever e There are 2 types gearlevers of with different lengths available to suit the drivers need For the dimensions see figure 5 in the right top corner o Short gearlever o Long gearlever e There are 3 different studs available for shift length adjustment o Short stud o Intermediate stud o Long stud 360 mm e Acustom shifting rod can be made on request rl Manual Strain Gauge Gearlever 10 motorsport gearboxes Drenth Display Unit The display unit houses several functions to adjust to the driver s needs and to fine tune the gearbox The gear indi
4. white White Downshift Cut i l l avi wire will be connected to ground Can be shared with a digital input from the ECU Can be connected directly to the yellow black wire from the Drenth Display When enough force is applied and the Grey Upshift Cut threshold is reached the red indicator LED will light up and the grey wire will be connected to ground Can be shared with a digital input from the ECU Connection Diagram Analogue Voltage Signal Black Brown 12 Volts Blue Ground Black Analogue 2 5 Volts Grey Switch Up 3 6 Volts White Switch Down 3 6 Volts motorsport gearboxes Manual Strain Gauge Gearlever 6 motorsport gearboxes Wiring specifications previous type 12 Volts Can be shared with 12V from Drenth Display red wire Blue Ground Can be shared with ground from Drenth Display black wire When lever is in neutral position no forces applied the green cable will have an output of 2 5V This voltage will increase as the up shifting force increases The voltage will decrease as the downshifting force increases Can be shared with an analogue voltage input from the ECU l When enough force is applied and the threshold is reached the green indicator LED will light up and the yellow Yellow Downshift Cut i l l avi wire will be connected to ground Can be shared with a digital input from the ECU Can be connected directly to the yellow black wire from the Drenth Display When enough force is a
5. Drenth motorsport gearboxes Strain Gauge Gearlever User Manual With Switchbox 25 03 0022 In gearboxes Introduction The Strain Gauge Gearlever is specially designed to be used for flat shifting A strain gauge is an accurate instrument to cut down the engine at the right moment for a smooth gear change Due to its design it can be used in all types of cars with a sequential gearbox The gearlever has an analogue output If the mounted ECU is able to use the analog input for flat shifting then the gearlever can be connected directly to the ECU A digital output can be added with the switchbox option This digital output can be connected to the Drenth display unit With this display unit you can only flat shift by up shifting For more information about the optional Drenth display unit see chapter Options or visit our website When the mounted ECU is able to use the digital signal for flat shifting the gearlever can be connected directly to the switchbox Depended on manufacturer of mounted ECU you can either use the digital with switchbox or the analogue signal It s possible to use flat shifting for up shifting and throttle blip for downshifting this can be realized when the car has drive by wire throttle system and an ECU that supports this system This document contains information about the Strain Gauge Gearlever It includes technical specifications and possible options For more detailed information please conta
6. cator displays the selected gear by measuring the position of the selector barrel with a rotary sensor This function can be calibrated through the supplied software It also can be used as a shift light when a preset level of RPM is reached This preset level and the manner of indicating can be set with the supplied software The gear indicator combined with the D M S gearlever can act as a flatshift system powershift This means that you can accelerate full throttle and shift up without using the clutch or lifting the throttle This can also be calibrated with the supplied software The set comes with a separate user manual For more information contact our sales department or visit our website Manual Strain Gauge Gearlever motorsport gearboxes 11 Drenth Gear Indicator The Drenth Gear indicator is a display unit that can be used with any Drenth gearbox with a rotary sensor Any gear order can be accommodated with up to 7 forward speeds besides neutral and reverse Programming the unit is achieved by the use of a single button and a user friendly programming routine Additionally the unit features a counter to log the total number of gearshifts made useful for tracking the life of critical gearbox components The set comes with a separate user manual For more information contact our sales department or visit our website Manual Strain Gauge Gearlever 12 motorsport gearboxes Contact Information Address
7. ct Drenth Gearboxes Drenth Motorsport Gearboxes Fleuweweg 10 7468 AG Enter The Netherlands Phone 31 0 547 38 26 96 Fax 31 0 547 38 20 65 Last modified February 2014 info drenth gearboxes com Made by Jeroen Grolleman Modified by Damas Damen Manual Strain Gauge Gearlever 2 motorsport gearboxes Warning If you want to install your gearlever Please be aware of e The input of the gearlever is 5V and the input of the switchbox is 12V e Install the gearlever only with a resistor sparkplug cap and sparkplug lead If you do not have this equipment we cannot guarantee you a interference free system e Do not install the system close to a high frequented device For example an ignition coil or sparkplug lead e If you want to combine the gearlever with a shifter boot Do not fix the shifter boot on the carbon plate This can lead to technical problems and interference in the system h shifter boot Manual Strain Gauge Gearlever 3 motorsport gearboxes Technical Specifications Wiring Specifications Driving direction i Can be shared with SV from the ECU Can be shared with ground from the ECL When lever is in neutral position no forces applied the grey cable has an output of 2 5V This voltage will increase Grey Analogue Voltage Signal as the up shifting force increases The voltage will decrease as the downshifting force increases Figure 3 Can be shared with an analogue voltage input Is
8. pplied and the White Upshift Cut threshold is reached the red indicator LED will light up and the white wire will be connected to ground Can be shared with a digital input from the ECU Connection Diagram Analogue Voltage Signal Green Brown 12 Volts Blue Ground Green Analogue 2 5 Volts Yellow Switch Down 3 6 Volts __ White Switch Up 3 6 Volts motorsport gearboxes Manual Strain Gauge Gearlever 7 motorsport gearboxes Program your switchbox Important The potentiometers do not have a function if they are not in program mode New settings only be remembered after step 4 If you turn off the power before step 4 the box settings return to the previous value 1 Get gearlever into program mode Connect a Voltmeter to the cables ground and signal Push the gearlever forward downshift with a force of 20kg 200N and turn on the power After 5 seconds the Green LED starts blinking Figure 8 1 important If you turn on the power the force on the gearlever is mandatory When the Green LED starts blinking forcing is no longer necessary The switchbox is now in program mode 2 Check current setting The voltmeter shows a value This value is the current threshold setting If this setting is correct turn off the power This means that you keep your current setting If you want to change the setting go to step 3 3 Make a new setting Your current setting is not correct You can change
9. this setting by rotate the right potentiometer Figure 8 CW Figure 8 2 CWW Figure 8 3 If you changed your setting you can check your setting Pull the gearlever backward upshift till the Red LED turns on Check the new value on the Voltmeter If this value still not is correct repeat step 3 Minimum value 2 7 V Recommended value 3 0V 4 Save new setting in memory Push the gearlever forward downshift with a force of 20kg 200N After 5 seconds the Green LED starts blinking Figure 8 4 Release the gearlever from pressure The switchbox works with the new setting for the upshift Up shift 3 0V 2 7V Too sensitive value 2 5V 2 3V Down shift PP Manual Strain Gauge Gearlever 8 motorsport gearboxes To adjust downshift threshold follow procedure described below 1 Get gearlever into program mode Connect a Voltmeter to the cables ground and signal Push the gearlever backward upshift with a force of 20kg 200N and turn on the power After 5 seconds the Red LED starts blinking Figure 9 1 important If you turn on the power the force on the gearlever is mandatory When the Red LED starts blinking forcing is no longer necessary The switchbox is now in program mode Check current setting The voltmeter shows a value This value is the current threshold setting If this setting is correct turn off the power This means that you keep your current setting If you want to change
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