RWHP to Crank HP reduction

[69znc]

I agree the power curve is the holy grail! But I think the urban rumors about the 10% loss have a real stickiness with no empirical evidence. Ron your testing is exactly what I have found in all the research and studies I have found conducted by various magazines and by individuals posted in forums.

Specifically I was thinking of street legal cars so I think that Ron's reduction of 18% in a race car set up supports my belied 18.5 with PS, AC..... is realistic. I think the low 20's is more realistic for someone who is not overall anal about minimizing the reduction (sorry some self reflection there!)

Scott thank you for your insight. I was not trying to figure out what race teams and cars can do. Really just for the types of cars people on this site talk about and own. NASCAR, Indy, Grand Prix, NHRA are in a different world!!