Evo 7 — Stage 2 ECU Tune
- Strong mid-range torque response
- Quick boost response with full boost by 3400 RPM
- Improved mid-range performance through GSC S1 cams
- Solid power delivery across entire rev range
- Balance of performance and reliability
- 67% power increase on Stage 2 tune
This 2003 Evo 7 came through with a familiar brief: extract meaningful power from the 4G63T platform on flex fuel while keeping the calibration adaptable between pump 98 and E85. The owner installed a larger ball-bearing turbo, a set of aggressive camshafts, a forged bottom end, upgraded fuel delivery, and a Haltech standalone to manage it all.
The calibration prioritises closed-circuit competition use, with boost set to 1.72 bar and ignition mapping tailored for ethanol blends. Wastegate control was dialled in to hold pressure cleanly through the gears, and the flex fuel logic allows the driver to switch between fuel types without reflashing. The dyno plot shows 270 kW at the wheels and 316 Nm torque, up from factory figures of 162 kW and 284 Nm.
Throttle response is sharp, and the turbo spools earlier than the factory unit despite the larger frame. Haltech's flexibility made tuning the cam timing and flex fuel transitions straightforward, and the owner has reliable power for track days.
Can this tune run on pump 98 RON as well as E85?
Yes, the Haltech flex fuel calibration adjusts fuelling and ignition automatically based on ethanol content. The owner can fill with any blend between pump 98 and E85 without needing a reflash.
What headroom does the calibration leave in the hardware?
At 1.72 bar and 270 kW, the turbo and injectors still have capacity left. The conservative torque figure of 316 Nm reflects the cam profile and AWD drivetrain tuning, not a hard limit on the engine.
Is this suitable for street use in Australia?
This calibration is intended for off-road and closed-circuit competition use only, given the power output and modifications.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Haltech.
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