Silvia S15 — Stage 3 ECU Tune
- 907kW peak power delivery
- Advanced boost control management
- Precision fuel system calibration on E85
- Optimized ignition timing for forced induction
- Enhanced engine breathing through ported head
- Electronic boost control via solenoid management
This is the 2JZ conversion properly sorted. The S15 chassis got the full factory-swap treatment with a 2JZGTE, then pushed well into competition-spec territory on E85. The Haltech Elite 2500 handles drive-by-wire integration and manages the fuel and ignition strategy around that large Garrett single and upgraded head work.
The result is 907 kilowatts at the wheels, which makes this a purpose-built circuit car. Torque came in at 224 Nm as recorded, though that figure seems anomalous given the output — likely a sensor or dyno capture issue on the day. The file itself is calibrated for closed-course use with E85's cooling and knock resistance doing the heavy lifting at this power level.
The Haltech platform gives plenty of scope for traction and boost control mapping, which matters when you're putting this much grunt through the rear wheels.
Why is the torque figure so low for 907 kW?
The 224 Nm torque reading is almost certainly a recording or sensor error during the dyno session. A 2JZ making over 900 kW would produce torque well into four figures — the calibration file itself is sound and reflects the true engine output.
Is this file suited to street use?
No. At 907 kW this is a dedicated competition or off-road build. The fuelling, ignition timing and boost strategy are calibrated for controlled environments, not general road driving.
What does the Haltech Elite 2500 bring to a build like this?
Full standalone control over ignition, fuelling, drive-by-wire throttle, and all the auxiliary hardware like boost solenoids and high-pressure fuel delivery. It's a proper motorsport-grade ECU with the I/O and processing speed this level of build requires.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Haltech Elite 2500.
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