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Originally released in 2008, the coveted R35 GT-R needs no introduction. From factory the performance is incredible, but there’s always room for improvement.

Using EcuTeK Racerom software, we are able to customize the tune to unleash the full potential of your R35 GT-R, whether mechanically modified or completely stock.

The R35 GT-R also has a secondary control module which is responsible for gearbox control. We can also tune this module for more precise shifting, as well as a range of other enhanced features such as rolling launch control. More on that later….

Below is a Dyno graph showing the standard tune (with titanium turbo back exhaust installed) VS. MRT Tuned with the same exhaust.

As you can see, compared to the standard tune we have achieved very significant increases in torque throughout the entire rev range, with very significant increases in power too which translates to a far more responsive, lively and enjoyable driving experience on the street and track.

Now a little more on the enhanced features which we offer for these vehicles with RaceRom. All the following features can be enabled on the factory ECU without physical modification…. More information on each of these features is available at the bottom of this page.

    • RaceROM Boost Controller

Provides the ability to adjust the boost level while driving, using the cruise control switches and on-board navigation display system.

    • Map Switching

Map switching provides four distinct tuning calibrations which can be selected using the cruise control instruments even when the engine is running.

    • High Resolution Maps

New Hi-Resolution Ignition, Fuel and Torque Maps are now available for each of the four map switch modes

    • Speed Density

Single hi-resolution VE based Speed Density map that can be enabled in any of the four map switch modes

    • Large Fuel Injector Support

Provides ECU calibration for greater than 750cc injectors.

    • Launch Control

RaceROM Launch Control now features a Pre-Launch Manifold Pressure Target with full closed loop control (BOTL – Boost Off The Line)

    • Custom Maps

Custom maps offers an unchallenged level of control from the factory ECU, allowing you to create almost any map you can think.

    • Flex Fuel

Using the custom maps feature it’s now possible to have a true flex fuel import feature

    • Valet Mode

Valet mode update with Speed, Torque and Distance based limiters and security pass code to enable the feature

    • Visual Knock Warning

Provides a visual warning light through the check engine light when cylinder knock occurs.

    • Per Gear Boost & Rev Limits

Provides custom limiters for boost pressure and RPM in every gear.

    • MAF left-right input swapping

Provides ability to swap MAF sensor input signals when using aftermarket intercoolers.

    • Wide Range Boost Limit Maps

Provides an increase in scale for the boost maps to allow greater boost levels.

    • Upshift Boost Spike Prevention

Provides a safety feature to stop boost spikes during gear shifting.

    • Boost Gauge Display

Additional configuration settings to set up the wrap round boost gauge as desired

    • Extra Parameter Logging

Provides extra data parameters, such as: current gear, engine load per bank, knock correction, calculated airflow, boost error, AFR per bank, and many more.

THE MRT DIFFERENCE

Our promise to you is to make sure we deliver on what you need:

Custom Tuned.
Your car will be individually tuned to suit the production variatons, wear and tear of your car. Your car is unique so we tune uniquely!
You can rely on knowing we will deliver a result specific for you.
We often spend 2 – 3 hrs fine tuning your car to get the best result , as part of our final testing and quality control.

Free Retunes for life.
As long as your car remains mechanically the same as when we first tuned it, if there is a software update or a edit you need to meed your driving needs we do this free.

Noise Guarantee.
Worried about exhaust noise? too loud, too quiet?
MRT will ensure we deliver, or your money back.

Money back Guarantee.
Even after all above and you get your car improved by MRT and for some reason you are not happy, let us know, we will refit everything back the way you arrived and you pay nothing.

Made in Australia.
MRT are proud to be Australian.

RaceROM Boost Controller

Allows the driver to dynamically adjust the boost level while driving by using the cruise control switches. The selected boost level is displayed on the boost gauge on the multifunction display.

This video tutorial shows how to set-up and tune the RaceROM Boost Controller.


Map Switching for Fuel, Timing, VVT and Rev Limit

Map switching provides four distinct tuning calibrations which can be selected using the cruise control instruments even when the engine is running.

The calibrations provide individual Ignition, Fuel and Intake VVT maps for each. You can easily create a normal road tune, a higher power race tune, an E85 calibration and a high efficiency mode to work on a single ECU. You can use the map switch modes with all of the custom maps and speed density to toggle these features for specific modes.

Map switching also works with the RaceROM Custom Maps, allowing you to enable calibrations and compensations in specific modes. Several other factory ECU settings are available for switching as well:

  • Engine rev limits
  • Speed limits
  • Boost target
This video shows how easy it is to use RaceROM Map Switching

This video tutorial runs through the setup and tuning of the map switching system and how it integrates with the other custom RaceROM Features.


High Resolution Maps

High Resolution Ignition, Fuel and Torque maps are available for each map switch mode. These maps are twice the size of the factory maps and provide up to 8000% higher resolution and axis scaling. By combining this with clever load rescaling we have achieved a level of superior interpolation and smoothness never before experienced with the GTR.

The four Ignition Timing maps now display timing before TDC (BTDC) rather than the standard GTR Ignition Adjustment system. These new maps work with the ECUs Dynamic Advance Knock Correction to provide a controlled amount of advance as well as knock retard when required.

This video explains the fuel control system and how the high resolution maps work with the fuel calibration.


Speed Density

The Speed Density (SD) feature changes the way the engine load is calculated. When SD mode is activated, the ECU will disregard the MAF sensor reading and will instead calculate mass airflow based on Engine Speed, Manifold Pressure and Air Temperature, this allows the MAF sensor to be removed, and a larger intake may then be fitted if desired.

Speed Density can be toggled in any map switch modes, and a hybrid MAF and Speed Density system can be implemented to aid accurate readings at low speed and provide maximum calibration at high power levels. A range of activation options are available for Engine Speed, Mass Air Flow or Manifold Pressure.

This video tutorial shows the setup and tuning of the speed density system for RaceROM.


Launch Control

The RaceROM Launch Control feature enables the latest Nissan Launch Control strategy. It also allows the driver to adjust the launch RPM dynamically using the cruise control switches to ensure the perfect launch.

RaceROM Launch Control uses closed loop feedback to provide Boost Off the Line (BOTL) to create more power to get the right launch every time.

This video shows the Launch Control adjustable RPM in action and explains the launch manifold pressure target.

This video tutorial shows how to set-up and tune RaceROM Launch Control


Custom Maps

RaceROM Custom Maps allow the tuner to modify the behaviour of the factory ECU by inserting additional maps into the ECU’s nomal calculations for parameters such as ignition timing, fuel, boost & VVT, and even repurpose inputs and outputs to measure custom sensors or solenoids not featured on the standard vehicle.

This facility lets you add custom compensations or even completely replace the calculations that are normally used. For example:

  • Per gear fuel enrichment factor.
  • Vechicle speed based ignition retard.
  • Torque reduction for engine oil temperature.
  • Throttle reduction for airflow.
  • Torque reduction for wheel speed differential.
  • E85 enrichment factor for injection volume.
  • Custom traction control strategies for wheel speed differential.

RaceROM Custom Maps also you to repurpose an input sensor and actuator output allowing you to control devices not provided by the manufacturer such as a wastegate purge solenoid or intercooler spray pump, or read data from a custom sensor such as charge air temperature or ethanol content (flex-fuel) sensors.
This map is a custom ignition compensation for Engine Speed and Manifold Pressure.

Entire functions can be created by linking maps together such as:

  • Boost control and wastegate duty feedback by repurposing the Carbon Purge Canister valve to act as a boost control solenoid.
  • Enrichment factor for E85 content by connecting a flex-fuel sensor in place of the Carbon Purge Canister pressure sensor.

Each of the custom maps can be logged and viewed using ProECU log viewer.

This video shows how to set-up and tune the custom maps system.


Flex Fuel

The RaceROM Flex Fuel system provides calibration options to import an ethanol content sensor to the factory ECU and allows custom compensations based on the percentage of ethanol in the fuel system. This is done automatically and requires no user intervention once the system has been calibrated correctly, you don’t need to switch maps or have a separate tune. You just get in the car, fill it up, and drive.

The Flex Fuel import is used in conjunction with the RaceROM Custom Maps system to allow a greater range of calibration options. The maps can be used to increase the desired fuel quantity to make sure the engine runs correctly, it can increase boost or advance ignition timing to make the most of the knock supressing quality of ethanol fuels.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


Valet Mode

To give the car owner piece of mind when putting their car into somebody else’s care, Valet mode is a low performance mode with limited torque, speed and range. Valet mode can only be turned off via a secret PIN number entered using the cruise control buttons and coolant temp display.

It can also be used as an anti-theft device, as it can limit the range that the car can travel when Valet Mode is enabled.

This video tutorial shows how to set-up the valet mode feature.


Visual Knock Warning

These features overcome the limitation of the factory ECU and allow higher boost levels to be set, in order to achieve increased power and torque, while still retaining the precise control and safety of Nissan’s advanced boost control system. Furthermore, the boost gauge on the multifunction display can be rescaled to accurately display these higher boost levels.

This video tutorial shows how to set-up the visual knock warning system.


Boost Gauge Display

RaceROM provides additional parameters to alter the boost gauge display to show greater boost levels and for the graph to wrap around when it increases past the end of the original graph.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


16-bit Boost Limit and High Boost Target Maps

These features overcome the limitation of the factory ECU and allow higher boost levels to be set, in order to achieve increased power and torque, while still retaining the precise control and safety of Nissan’s advanced boost control system. Furthermore, the boost gauge on the multifunction display can be rescaled to accurately display these higher boost levels.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


Per-gear Boost Control

Per gear boost control allows separate boost calibrations for each gear, thereby maximising boost control options and flexibility. For example, boost may be reduced in 1st gear to prevent wheel spin, but raised in 3rd-6th for increased performance.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


Per-gear Rev Limits

This feature allows per gear rev limits to be configured. It could be used to improve 0-60 times by allowing a higher 2nd gear limit to just hit 60 mph / 100 km/h in 2nd, whilst preserving the lower rev limit in other gears.

This video tutorial shows how to set-up and tune the per-gear rev limits.


MAF Left-Right Swap for custom intercoolers

Several aftermarket intercoolers switch the intake plumbing in relation to the standard intercooler. This switches the input from the MAF sensors to ensure correct fuelling to each bank of the engine.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


Large Fuel Injector Support

Injectors over 750cc are not supported by the original ECU as standard. This enhancement allows the use of almost any size of injector.

To view the other available RaceROM Features, please use the menu to the right entitled RaceROM Features.


Extra Parameter Logging

GTR RaceROM enables ProECU tuning software to measure & record extra diagnostic parameters not accessable as standard, such as:

  • AFR per bank
  • Boost Error
  • Boost Target
  • Calculated Airflow
  • Calculated Torque
  • Desired Wastegate
  • Engine load per bank
  • Gear
  • Injector duty per bank
  • Knock correction
  • Mass Air Flow per bank
  • Turbo Dynamics
  • Wastegate
  • Visual knock warning – Shows a visual warning of knock using the dashboard’s check engine light.

Over 90 custom paramters are available for the GTR ECM, including the ouput and calculation values used by Custom Maps.

This video walks you through the EcuTek RaceROM Enhanced Live Data System for GTR as well as some of the standard diagnostics parameters.


Upshift Boost Spike Prevention

When the vehicle shifts into a higher gear under full throttle, the sudden reduction in engine RPM can cause a momentary but substantial increase in boost pressure. This can be a particular problem on vehicles with larger turbos running at high boost pressures. The spike prevention feature detects when this is likely to occur and opens the wastegate for a fraction of a second to prevent the spike from forming and ensure a steady and consistent level of boost.

Example


Supported Vehicles

FlashCAN Nissan GTR currently supports the standard and Nismo tuned versions of the Nissan GTR in the US, JDM, Euro and Middle East markets. See the sidebar for exact current model support. As with all EcuTek ProECU products if you find a vehicle we do not currently support, we will endeavour to add support for it as quickly as possible.


Examples

Power increases of over 60BHP are possible with ECU recalibration only. The addition of a performance exhaust allows power increases to reach over over 100BHP and 590lb.ft torque (800NM) at 1.25bar boost.
The addition of larger (76mm) intakes and EcuTek 950cc Fuel Injectors resulted in power increases of 125 BHP.

Nissan GTR Power Graph Nissan GTR Torque Graph