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GT-R RaceROM Custom Maps

GT-R RaceROM Custom Maps

Mar 19, 2020

 

 

GT-R ProECU Tuning Guide RaceROM Supplement: Custom Maps

 

Table of Contents

 

EcuTek RaceROM Custom Maps is an advanced feature for expert tuners only. It provides the tuner with the ability to modify the control algorithms within the ECU. The tuner can take advantage of this in order to develop their own features that few other tuner can provide. It can also be used to develop one-off fixes to overcome specific problems encountered while tuning a highly modified vehicle.

We have improved our unique and innovative Custom Maps feature to enable even more tuning possibilities. With the addition of our dedicated boost control and FlexFuel strategies, all 16 custom maps are now available for the tuners to further exploit the power of RaceROM.

Additional inputs and outputs, combined with expanded possibilities for manipulating the values, allow for complex control strategies to be created from something as simple as a fuel pressure fail safe to a slip target based multilayered traction control system.

 

This feature is so versatile it was previously used for things like traction control, flex fuel, and even advanced boost control.  While no longer needed for those functions, you can still use these custom maps to do all sorts of additional tasks.

 

 

Table of Contents

 

Custom Map Inputs

  • Accelerator Pedal

  • AFR Average

  • AFR B1

  • AFR B2

  • AFR Target Base

  • Atmospheric Pressure

  • Battery Voltage

  • Boost Delta

  • Boost Target

  • Boost Error

  • Boost Sensor B1

  • Boost Sensor B2

  • Clutch Slip

  • Coolant Pressure

  • Coolant Temp

  • Engine Load

  • Engine Oil Pressure

  • Engine Oil Temp

  • Engine Speed

  • FlexFuel Ethanol Content

  • Fuel Injector Duty

  • Fuel Injector Effective Pulse

  • Fuel Injector Pulse

  • Fuel Level Sensor

  • Fuel Temperature

  • Fuel Pressure

  • Fuel Pressure Relative

  • Fuel Temperature Sensor

  • Fuel Trim Combined

  • Gear

  • Gear Desired

  • G Force Lateral 

  • G Force Longitudinal 

  • G Force Rotational

  • Heated O2 Sensor2 B1

  • Heated O2 Sensor2 B2 

  • Ignition Timing

  • Intake Air Temp

  • Knock Correction

  • Launch Exit Status

  • Launch Rpm Target

  • MAF Sensor Voltage B1

  • MAF Sensor Voltage B2

      

  • Manifold Absolute Pressure

  • Map Sensor Voltage

  • Map Switch Mode

  • Mass Airflow

  • RaceROM Boost Controller

  • Secondary Air Injection MAF

  • Short Term Fuel Trim B1

  • Short Term Fuel Trim B2

  • Steering Wheel Angle

  • TC Slip Error

  • TC Torque Reduction

  • Throttle Angle

  • Throttle Angle Delta

  • Torque Actual

  • Torque Demand

  • Torque Limit TCM

  • Torque Limit VDC

  • Torque Split (Front%)

  • Upshift Timer

  • Vehicle Speed

  • VVT Angle

  • Wheel Slip Ratio

  • Wheel Speed Front

  • Wheel Speed Rear

  • Custom Map A Result

  • Custom Map B Result

  • Custom Map C Result

  • Custom Map D Result

  • Custom Map E Result

  • Custom Map F Result

  • Custom Map G Result

  • Custom Map H Result

  • Custom Map I Result

  • Custom Map J Result

  • Custom Map K Result

  • Custom Map L Result

  • Custom Map M Result

  • Custom Map N Result

  • Custom Map O Result

  • Custom Map P Result

  • Custom Input 1

  • Custom Input 2

  • Custom Input 3

  • Custom Input 4

  • Custom Input 5

Custom Map Outputs

  • Calculation 1

  • Calculation 2

  • Injector Pulse Width

  • Ignition TIming

  • Wastegate Duty

  • VVT Angle

  • Boost Target Final

  • Target AFR

  • Mass Airflow

  • Injection Angle

  • Torque Actual

  • Charge Air Temp for SD

  • Injector Size

  • Fuel Pump Duty

  • Canister Purge Solenoid Duty

  • Vent Control Valve (0= off, 1=on)

  • Secondary Air Pump  (0= off, 1=on)

  • Secondary Air Solenoid (0= off, 1=on)

  • Secondary Fuel Pump  (0= off, 1=on)

  • Cylinder Cut Probability

  • Throttle Target

  • Volumetric Efficiency

  • Torque Limit

  • Custom Limp Mode

  • TC Wheel Slip Target

  • TC Proportional Gain

  • TC Integral Gain

 

 

Custom Map Output Functions

  • Replace channel value with map output

  • Add map output to channel value

  • Multiply channel value by map output

  • Use map output as a minimum for channel value

  • Use map output as a maximum for channel value

  • Add map output to integral.  Add integral to channel value

  • Add map output to integral.  Multiply channel value by integral.

 

 

Custom Map Notes

Notes relating to each custom map can be added here. There is a 100 character limit. The “delete” key cannot be used as it’s still a hot-key for triggering live data, and the “Ctrl-S” hotkey combination doesn’t work for the moment so quit and click Yes on the Save Changes To Custom Map X dialog box to save your changes.

 

Deactivation Delay

Activation and deactivation now how independent delay times. This means you can trigger a custom map to be active immediately and it will remain on for a time even if the activation conditions are no longer met, for example a 10 second boost target increase.

 

Integral Min/Initial/Max

On our previous Custom Maps implementation the integral function would always start and default back to zero making multiplication via an integral impossible. An initial value of 1 will fix the issue.