How much HP??
 

I am tryin g to determine a base line on an engine combo I am building.
It is a sbc, dart 4" stroke, 4.155 bore, 14.5-1 compression, heads that flow
350-355 cfm @ .700.
it is alcohol injected and also vac pumped.
drag engine.
Engine is new.
here is what I came up with:
engine alone 720 hp
alcohol injection 5% + 756 hp
vac pump + 35 hp = 791 hp
am I close?

Pretty close I'd say. A dyno will tell no lies though.

Later Cp

Re: How much HP??
 

I'd say you are close, but we usually see 15-20hp for vacuum pump. Seen 45hp for injection.

It's kinda what I figured.
Close to 800 hp.
Possibly a bit more or a bit less
I have also a morroso oil accumilator and running less oil in crankcase.
no dyno's in my area
crap
Al