GT-R RaceROM Tuning Guide
Introduction
EcuTek RaceROM is a package of special software features that can be installed into the ECU of the supported vehicles. You simply open your ECU ROM file using EcuTek software, apply the RaceROM Feature File (Patch) to it, adjust the RaceROM maps as necessary, and then program the ROM file into the vehicle.
Please read How to: Add/Remove EcuTek Race Rom to your Vehicle. Feature File Guide for info on how RaceROM works, how to install and uninstall RaceROM feature files, and further hints and tips.
The current RaceROM features are listed below. Features marked ** are only available to trade customers, or retail customers that have purchased the optional RaceROM MX5 upgrade.
Please also see our website for various videos and webinars for further information.
Related Articles
Table of Contents
- 1 GT-R ProECU Tuning Guide RaceROM Features
- 2 Introduction
- 2.1 Related Articles
- 3 Table of Contents
- 4 Boost Control
- 5 Boost Gauge Rescaling
- 6 RaceROM Boost Controller (not to be confused with RaceROM Boost Control
- 7 Per Gear Boost Control
- 8 Clutch Slip Protection
- 9 Custom Maps
- 10 Failsafes
- 11 MIL Source
- 12 Flex Fuel
- 13 Fuelling
- 14 Ignition Timing (RaceROM Simplified)
- 15 Knock Warning
- 16 Launch Control
- 17 MAF Bank Switching
- 18 Map Switching
- 19 Per Gear Rev Limits
- 20 Sensor Scaling & Custom Sensors
- 21 TCM Tuning
- 22 Torque
- 23 Upshift Boost Spike Prevention
- 23.1 Valet Mode
- 24 FAQ
Boost Control
For more information check out our complete RaceROM Boost Control Guide:
Boost Gauge Rescaling
The boost gauge can be rescaled, and/or made to wraparound in order to display boost pressures in excess of the limitations of the standard gauge.
The Boost Gauge Rescale feature allows the tuner to rescale the boost gauge in order to accurately display the level of boost when it exceeds the normal factory scaling. Please note that it is not possible to change the numbers on the gauge at this time and this feature will NOT change Target or Actual boost values, only the boost gauge display will be rescaled.
Examples of boost gauge rescaling
Example 1
Boost Gauge Multiplier: 1
Boost Gauge Offset: -1.0
Manifold Relative Pressure | Gauge Reading |
|---|---|
0.00 | -1.00 |
0.50 | -0.50 |
1.00 | 0.00 |
1.50 | 0.50 |
2.00 | 1.00 |
2.50 | 1.50 |
Example 2
Boost Gauge Wrap Threshold: 1.5
Boost Gauge Wrap Subtraction: 2.5
Manifold Relative Pressure | Gauge Reading |
|---|---|
-1.00 | -1.00 |
-0.50 | -0.50 |
0.00 | 0.00 |
0.50 | 0.50 |
1.00 | 1.00 |
1.50 | 1.50 |
2.00 | -0.50 |
2.50 | 0.00 |
3.00 | 0.50 |
RaceROM Boost Controller (not to be confused with RaceROM Boost Control
The RaceROM Boost Controller feature allows the driver to adjust the maximum desired boost using the cruise control buttons (when the cruise control is off). The boost level selected is displayed on the dashboard monitor.
Ensure the cruise control is switched off.
Press "RES/ACCEL" or "COAST/SET" to display the current desired boost.
To increase desired boost by 0.1 bar, press "RES/ACCEL"
To decrease desired boost by 0.1 bar, press "COAST/SET"
To increase desired boost to maximum, hold "RES/ACCEL" for 2 seconds.
To increase desired boost to minimum, hold "COAST/SET" for 2 seconds.
After 2 seconds, the monitor display will revert to normal.
Configuration
The RBC feature operates as an upper limit on the desired boost. The feature will not increase the boost above the level set in the ECU desired boost map. For this reason, you must ensure that the ECU Desired Boost is set to the same or higher value than the RBC Max Boost. You should also set the Desired Boost Limit maps accordingly.