3.0 V6 camshaft/tuning upgrade questions
Im looking at mild tuning a 3.0 24 valve 166 motor for use in a stratos replica. I want to achieve around 275-290 BHP but try if possible to maintain some reasonable economy relative to the standard engine. Im definetly going for throttle bodies (i need the noise!) and a head skim to get compression up to about 11:1. My main question is around cam changes.
Im considering the Piper cams 270 and the AHM cam.
1, has anyone fited an uprated cam and experienced a big MPG drop due to the inevitable overlap ? i think the AHM cam has more overlap due to longer duration (290 deg. i think)
2, Would it be possible to achieve the horsepower im after without changing the cam at all?
3, Would giving the valves a 3 angle cut and tidying up the ports be a better route?