quote:My name's Cam, I'm new to this site. I just had to get on here and ask you more about your engine if you don't mind. I'm building a couple of street-only 351 Clevelands here in Oz and I'll be fitting the Crane HR-216 to one of them. I can't believe you got so much power out of, what looks like, a baby cam on paper. Are you really running the HR-216? At what RPM did your motor produce peak BHP? I'm guessing they're 4V closed chambers? Any rough flow numbers etc. Assuming a drive train loss is quite low on the ZF (probably around 15%-17%) you're up around 500BHP! Awesome!
ZF loss is roughly 22% where-as a transmission loss is usually 16%.
My current motor was built by the previous owner and the cam spec was given to me.It is a small cam and my engine builder said there was no way I could get 500 hp out of that cam but I have the receipt with the part #.
The heads are well worked 4V closed chamber heads. I don't have flow #'s.
Peak HP is at 4600. Great for the street. Both my motors built the most power at that range. Motors go boom at high rpm's.
Will