Does anyone here know if you could tune a US MR2 Turbo to put out the same power as a JDM car?
I have no idea I've always had the EGR block off plates. My car came with an extra ecu that was supposed to be a JDM one but I couldn't tell the difference when I changed between the two.How does the EGR system affect the power levels? I guess the JDM ecu can't control the EGR so it remains shut?
EGR should not affect peak power, since it is normally deactivated at high loads. The older cars had EGR systems that were stand alone. They were controlled by vacuum ports in the throttle body. The cars with TVIS had a vacuum valve that would also deactivate the EGR in the high RPM range, when the TVIS butterflies were open. I don't know if there were ever EGR systems that were completely under control of the ECU.How does the EGR system affect the power levels? I guess the JDM ecu can't control the EGR so it remains shut?
The lower power is most likely due to the way EFR works. You probably already know this anyway.Well, there you go. The EGR was intended to improve efficiency and emissions at moderate load by increasing the cylinder filling at partial throttle. Don't know what the exact boundaries were, or whether there were any other tuning changes that went with it.