TUNING THE MITSUBISHI 4G63 (EVO 9)
Part 1 of a 2.3 stroker Mitsubishi 4G63 EVO 9 build. The owner opted for a 2.3-litre stroker kit to extract serious power from this EVO 9 platform. For now, we worked with the factory EVO 9 turbo, which was in great condition with relatively low mileage.
An AMS performance kit is on the way for Part 2. For this initial session, the factory ECU was used to get the baseline tune established. The 2.3 stroker EVO 9 still produced very strong results on the stock turbo with the correct ECU calibration.
Looking ahead, a Haltech Plug and Play or Platinum Sport 1000 ECU is planned for fitment. This will give full control over the stroked 4G63 engine, allowing us to unlock its full potential with the AMS kit and higher boost. Watch this space for Part 2 — coming soon.