BRZ/FRS/GT86 RaceROM Tuning Guide (up to v12.3)
RaceRom Tuning Guide
Introduction
This guide only applies RaceROM versions up to 12.3 with revision 48502. For version 13 onwards with CAN support please refer to the BRZ Gen2 \ GR86 RaceROM tuning guide.
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 BRZ/FRS/GT86 upgrade.
Please also see our website for various videos and webinars for further information.
Feature List
EcuTek RaceROM for Subaru BRZ currently includes the following features:
Map Switching**
Speed Density**
Flex Fuel**
Boost Control**
Custom Sensor Import**
Closed Loop Fuel Control**
Custom Maps**
Launch Control
Flat Foot Shifting
Downshift Auto Blip
Accelerator Trim
Per Gear Rev Limits
Features marked ** are only available to trade customers, or retail customers that have purchased the optional RaceROM BRZ upgrade package from their Master Tuner.
Supplemental Content
Platform Specific
General
Accelerator Trim
The Accelerator trim map allows you to adjust the accelerator response by intercepting the accelerator position signal and replacing it with a different value. This can improve drivability in vehicles that do not respond to pedal input in a linear fashion.
Auto Blip Feature
Manual Transmission Vehicles Only
The Auto Blip feature applies a short burst of throttle when the driver is down-shifting under braking. This raises the RPM to keep the engine operating within its power band and provides a smooth entry into the lower gear by reducing engine braking.
AutoBlip Minimum Speed
Vehicle speed that must be exceeded for AutoBlip to be enabled.
AutoBlip Pedal Percentage
The x axis is time since Autoblip was triggered (described below). Autoblip ends when the maximum time on the X axis is exceeded. Be careful to avoid using too much Accel at low RPM as this will cause the car to push on aggressively.
How to Use Auto Throttle Blip
The Auto Blip feature is activated when all of the following conditions are met:
The ‘Auto Blip Enable checkbox’ is ON for the current Map Switch Mode
The vehicle is travelling faster than the Auto Blip Minimum Speed
The driver presses the brake pedal, followed by the clutch pedal
I'ts important to push the clutch pedal all the way down relatively quickly, going slowly or only part way can cause the blip to occur when the clutch is still partially engaged causing a lurching motion or potential damage.
The accelerator blip is immediately cancelled when one of the following conditions occurs:
The driver releases the Brake Pedal
The driver releases the Clutch Pedal
The vehicle speed falls below the ‘Auto Blip Minimum Speed’ The Auto Blip timer reaches the end of the map
When the driver down-shifts while braking, the ECU will blip the accelerator. The amount of accelerator to apply and the duration of the blip is controlled by the ‘AutoBlip Pedal Percentage Map’ as shown in the diagram below, this is a 2D slice through the 3D map.