Commodore VL — Stage 3 ECU Tune

This 1988 VL Commodore runs a complete Stage 3 setup on E85, calibrated through Haltech. The fuel system has been upgraded from the pump through to the injectors, with boost management handled by an electronic solenoid and wastegate control. It's a proper off-road or circuit build, not a street compromise.

The workshop supplied dyno results of 380 kW at the wheels and 730 Nm, both strong numbers for an RB30 that still sees regular use. The calibration focuses on stable fuelling under load and clean boost control, taking full advantage of E85's cooling and octane properties without chasing peak numbers at the expense of driveability.

Haltech's flexibility allowed fine control over ignition timing and fuel delivery across the range, particularly important given the ethanol content and the hardware changes. The file reflects the realities of a modified forced-induction engine: safety margins where they matter, aggression where the hardware supports it.