Commodore SV6 — Stage 1 ECU & TCU Tune
- 14% power increase
- 12% torque increase
- Improved fuel efficiency
- Sharpened transmission shifting
- Enhanced engine responsiveness
The VF SV6 responds well to a combined ECU and transmission calibration when paired with basic bolt-ons. This 2015 example arrived with an over-the-radiator intake and high-performance exhaust already fitted, so the tune could focus on optimising timing, fuelling, and shift strategy for 98 RON.
The dyno sheet showed 152 kW at the wheels, up from a baseline 130 kW — a solid 22 kW gain. Torque stayed nearly identical at 208 Nm, which isn't unusual for a naturally aspirated V6 on a Stage 1 file. The real improvement here is in the TCU work: firmer shifts, better lockup timing, and cleaner power delivery through the gears.
Factory ECU platform is straightforward to work with. No hardware changes required beyond the intake and exhaust the customer had already installed.
Why did torque barely change with 22 kW more power?
Naturally aspirated V6 torque is largely dictated by displacement and breathing. The power gain comes from holding timing higher in the rev range and optimising fuelling with 98 RON, but peak torque typically won't move much without forced induction or a cam change.
What does the TCU calibration actually do?
We adjust shift points, firmness, and torque converter lockup strategy to suit the revised power curve. It reduces slippage, improves throttle response, and makes better use of the engine's new output.
Is this tune suitable for daily driving on 98 RON?
Yes. It's calibrated specifically for 98 RON pump fuel and remains safe for everyday use with the listed modifications.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
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