260 RXPX — Stage 3 ECU Tune
- 61% power increase to 193kW
- 59% torque increase to 225Nm
- Enhanced boost control management
- Improved fuel system efficiency
- Increased RPM capability to 9200rpm
- Drive-by-wire optimization
This 2014 RXPX came in with a full hardware package already fitted: Garrett G25-660 turbo, forged internals, Darton sleeves, and upgraded fuel system. The workshop recorded 119.6 kW stock, and we calibrated the Motec to deliver 193 kW at the wheels and 225 Nm, all on flex fuel. Boost held steady at 1.72 bar.
Motec's flexibility made dialling in the flex fuel compensation straightforward, especially with the upgraded injectors and high-pressure pump supporting both 98 RON and E85. The forged bottom end and sleeves gave us the margin to push timing and keep heat under control. Impeller work and wastegate control meant boost response stayed clean through the midrange.
This is a closed-circuit competition setup. The tune prioritises throttle response and repeatable power delivery over soft street manners, and the flex fuel mapping allows the rider to adjust ethanol content between sessions without reflashing.
Why does boost pressure remain the same despite the large power gain?
The factory supercharged setup ran 1.72 bar, and the Garrett turbo conversion holds the same peak pressure. The gain comes from improved compressor efficiency, better fuelling headroom on flex fuel, and optimised timing on the Motec. The turbo simply moves more air at the same manifold pressure.
What does the Motec platform offer over the stock ECU for a build like this?
Full flex fuel mapping, individual cylinder trim, and closed-loop boost control. The workshop can log and adjust every parameter without the limitations of a piggyback or flash-only system. Critical for a competition PWC running variable ethanol content.
Is this file suitable for recreational riding?
No. This calibration is intended for closed-circuit competition use only. The tune expects high-octane fuel, and throttle response is aggressive. It's not designed for general waterway use.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Motec.
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