Originally Posted by BigD
Yeah I've got Mark's M5 chip in it but it needs a proper fuel map since displacement is larger, the rotating mass is lighter so it can spin up faster. The guys who sold me the racing components said with the mods I have they see bet. 370-390 hp when the engine is tuned properly.
I can measure the ponies and air/fuel ratio now with my friend's dyno.
I can also tune the chip for a 3.8l motor. I'll be at the dyno on Saturday afternoon, but already have 3 or 4 BMW's coming.