Originally Posted by nick73

Went back to Racetorque this morning as the car was lacking some power and there was some hesitation here and there in the rev range. I watched the initial power runs which yielded approx 200kw at the wheels so 30 odd down from before. They cleaned my afm and it made a few more kw's but was still well short. Lane was pretty surprised and basically had to retune the car all over again. The afr's were all over the place he reckons.
Racetorque fabricated and fitted a new muffler to the car a couple of weeks ago so whether that contributed to the problem I don't know.

End result it made 223kw @ 5500rpm and 425nm @ 3800. Retune has also got the power coming on earlier - 400nm @ 3600rpm.