Quote:
Originally Posted by minytrker
I dont know anything about flow numbers or porting but those numbers seem high to me. I got this from AI's webpage
"Typical gains for our CNC work are in the 20-30rwhp SAE range over the as cast 241"
Those numbers seem more inline to me, but I know zero about porting.
|
Agreed. Definitely high IMO. I gained 55rwhp with my AI 226 243s over stock 241s and that is BIG jump for 243s over 241s. SCR was 10.1:1 with 241s and after was 11.5:1 with the 243s. I'd say 30-35 would be very respectable and about what I would guess over stock 241s with those 317s.