[quote=“somedude,post:43,topic:27605"”]
how would you calculate crank HP without pulling the engine? I know crank HP is basicly a useless value because it doesn’t represent usable power but how would you do it. I have always herd 15% for MTX and 20% on ATX is that way off?
[/quote]
Crank horsepower other than on an engine dyno is a useless estimation.