Originally Posted by manitou
What's the top end in revs with the D25 heads Dom, 8K?
The new injectors are going in on Friday and we're moving the IAT sensor under the IC centered on the throttle body! On the dyno the IAT was showing 175 degrees nearing the end of 4th gear pulls and the ECU was pulling timing up there. This of course was not an issue on the road but this will be the best location for the sensor!
that depends on your head builder. What springs are you running? I would think that R-199-B cams with any dual spring or GSC beehive would be good to at LEAST 8k. Your boost level will affect your redline as well. The funny thing about boost:
the more you run the higher you can rev the bottom end.
the more you run the less you can rev the top end.