R35 GTR R35 — Stage 2 ECU Tune
- Four dynamic map switching options for on-the-fly performance profile selection
- Boost switching capability for instant power adjustments
- Valet mode for restrictive driving when required
- Flexfuel optimization for dual petrol and ethanol fuel compatibility
- Enhanced cooling and intake efficiency for sustained performance
This 2008 R35 was set up to run flex fuel through ECUTEK, allowing the driver to switch between 98 RON and E85 depending on what's available. The supporting hardware is Stage 2 territory: enhanced intake, cooler piping, full exhaust with downpipe, uprated actuators, and both injector and fuel pump upgrades to keep the VR38 fed cleanly at higher loads.
The calibration recorded 390 kW at the wheels and 665 Nm, up from 295 kW and 505 Nm respectively. Peak boost sits at 1.24 bar. The flex-fuel map allows the ECU to read ethanol content and adjust ignition timing and fuelling in real time, so the car makes full power on E85 when it's around, and pulls back to a safe pump-gas map when it's not.
Intended for closed-circuit and off-road competition use.
Does the flex-fuel tune require any driver input when switching fuels?
No. The ECUTEK calibration reads ethanol content via the factory fuel sensor and adjusts timing and fuelling automatically. You fill the tank and drive.
What power can I expect on 98 RON versus E85?
The 390 kW figure is on E85. On 98 RON the tune pulls timing and boost to protect the engine, so expect less power—typically 10–15 per cent lower depending on conditions and fuel quality.
Are the factory actuators adequate for this boost level?
No. This file was calibrated with uprated actuators already fitted, which is why they're listed in the modifications. Factory actuators tend to creep or overboosting at 1.24 bar.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: ECUTEK.
Apply for Workshop Access