hi, now i'm building my new 347 with forged I beams and forged pistons in my sig is the rest, the thing is i whant to know what CR with 93oct fuel N/A and what intake. Please lots of inputs!
P.S About how many HP's should this engine have? flyweel and tire
If the porting you had done to the Typhoon was done by a professional, then it should carry that combo. Actual power depends on so many things that estimates are just guesses...........but you should be in the 350-400HP range if everything is well matched.
I agree that a ported rpm will be fine for that combo. Your cam is mild and it looks like you are keeping the rev's low so it should work fine. I say 330rwhp.
over 400RWHP? - more cam and more intake. i.e. Victor intake and a cam with ~290 degrees duration. A custom cam would be a good buy to help you get your goal the first time. Cam specs don't tell you everything about the lobes>
over 400RWHP? - more cam and more intake. i.e. Victor intake and a cam with ~290 degrees duration. A custom cam would be a good buy to help you get your goal the first time. Cam specs don't tell you everything about the lobes>
I have a graph of an easy proven 400+ rwhp 347 combo.
Milled afr 185's, anderson N91 cam (with valve springs) holley manifold, 75mm tb (minimum) 1 3/4" longtubes and a 3" exhaust. That made 416hp. The guy then put on a ported victor manifold, had the heads worked a bit with a 2.055" intake valve and maybe a 90mm tb and it did 455rwhp.
You'll need at least a 4.10 gear to run good at the track. 4.30's preferred.