Originally posted by FastCougar:
I wouldn't boost anything higher than 9:1 ... 10:1 and 11:1 are both useless for dependable boost. Sure, you might get it working knock free, but that won't last for long. Besides, even at 10:1, I highly doubt that you could run more than 6 psi without knock/detonation. Is all that trouble work 6 psi?
I agree that low compression is better, 8.5:1 is preferable... BUT I think your statements above are pretty inaccurate. I have been running 8-10psi for over 10,000 miles with 10:1 compression & no intercooler without the trouble of knocking and predetonation. Infact the engine internals have outlasted the actual supercharger components!
-Mark
