Supra — Stage 3 ECU Tune
- 1118 horsepower at 35 PSI boost pressure
- Enhanced fuel system with high-pressure pump and injectors
- Advanced engine management with drive-by-wire capability
- Optimized boost control via dual solenoid wastegate system
- Full engine internals upgrade for high-performance reliability
This is a proper GE block conversion with a 7675 turbo, Kelford cams, ported head, and Haltech 2500 running the show. The owner wanted a flex fuel file that could switch between 98 and E85 without compromise, so we built tables around sensor input and dialled boost to 2.41 bar on the high-ethanol map.
The dyno came back at 833 kW at the wheels. Torque figure of 284 Nm suggests we're well into the higher rev range before it peaks, typical for this turbo and a head that flows. Fuel pressure and delivery were sorted with upgraded pumps, and the IC7 dash gave live visibility during mapping.
Intended for closed-circuit use. The flex capability means you're not locked into E85 availability on longer trips, but this power level needs respect and proper pre-flight checks every time.
What flex fuel strategy was used for this calibration?
The file reads ethanol content via sensor and adjusts fuelling, timing, and boost dynamically. The 2.41 bar peak is mapped for high-ethanol blends; 98 RON runs conservative boost and timing to protect the engine.
Why is the torque figure so low relative to power?
284 Nm suggests the dyno captured a high-RPM pull where torque naturally drops off but power keeps climbing. This turbo and head combination favours top-end flow, typical for a circuit-focused build.
Is this file suitable for street use?
It's calibrated for off-road and closed-circuit competition. At 833 kW, driveability on public roads is not the primary intent, and the flex fuel system requires regular monitoring.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Haltech.
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