Evolution 6 Evo 6 — Stage 2 ECU Tune
- 34% power increase to 177kW
- 26% torque increase to 550Nm
- Improved boost control responsiveness
- Enhanced fuel system optimization for E85
- Wastegate solenoid calibration for better boost management
- Drive-by-wire integration refinements
This 4G63 was switched to E85 on the factory ECU with a well-matched set of supporting hardware: upgraded injectors, high-pressure pump, and proper boost control via new solenoids. The result is a solid 177 kW and 550 Nm at the wheels, up from 132 kW and 437 Nm on pump fuel.
Stage 2 is about headroom and reliability on E85. The fuel system mods allow us to lean into the ethanol's cooling and octane advantage without leaning out or running into pressure drop. Drive-by-wire integration kept throttle response clean through the midrange.
This one's set up for closed-circuit use. The factory ECU handles E85 well once the fuelling and ignition maps are rewritten to suit the higher flow and timing tolerance. Workshop reported the dyno pulls were consistent and repeatable.
Can the factory ECU handle E85 reliably on a Stage 2 Evo 6?
Yes, provided the fuel system is upgraded to match — injectors, pump, and accurate boost control. The factory ECU responds well to recalibration for ethanol once those pieces are in place.
What's the real-world difference moving from 98 RON to E85 on this platform?
E85 lets you run more timing and a bit more boost safely thanks to the higher effective octane and charge cooling. This build picked up 45 kW at the wheels with the supporting mods in place.
Is this safe for track use or just a dyno number?
It's calibrated for closed-circuit competition use. The tune was validated on the dyno with consistent, repeatable pulls — a good indicator of margin and stability under load.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
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