Im running a 50top/52bottom pulley combo for a 4% OD on 10-71's making 6.5psi no innercooler.
Just wondering what others run on their roots type blowers.

That's not much boost for 4% over on 10's. What cid?

557

509", 52 lower, 48 upper, 7% over, 871, 8PSI,
Your #s sound correct to me for cubes and blower.
Steve

I would have expected 7.5 to 8psi with a 10-71

Really all depends on camshaft. Cam size can make all the difference in the world regarding boost pressures.

P.S. Chris, your rods are on the way.

Eddie

Yes, camshaft plays a valuable role in what your net boost gain is. What static compression are you at?

8:1 Static CR, Hyd Roller 248/258 with .600+ lift and Canfield 350cc Alum heads.

Hi Mark!

I have almost the same set-up as you and is works great

Hey, Where you been?
I saw something that reminded me of your old setup...
http://www.offshoreonlyclassifieds.c...o22479-en.html