Tom-Guy

A given compressor flows X amount of horsepower. Regardless of what psi it occurs at. Regardless of what CR your engine is. There's a small variance in what X amount is depending on system dynamics, but not enough to worry about.

Fiddling CR will just trade off between spool time and knock limit.

J-SMITH69

wouldnt you still be able to run lower boost/spool quicker/more torque with high compression lower boost

linkmustang

erich what u useing for fuel

Tom-Guy

And lose a large threshold of safety, sure. Go for it. Sort of like the stock H22 piston has a bad rep for weak ringlands... they aren't. The H22 just has a lower knock limit than B-series, less safety margin, and it's pretty easy to shatter ringlands to flinders.

V8's are known for gobs of midrange torque - add boost + you are golden. You really going to worry about a few extra ft/lbs "per psi" when you can just up the boost on a lower CR setup, make the same power, and have more margin for error? It's all in the compressor.

J-SMITH69

no i wouldnt' heh

but depends which v8 you'e talking about

302, 350, 327, 305, 4.6l, 301 ext... arent exactly torque monsters... for a street car a little compressoin would be a good thing i think

more than 8:1 i would say

Erich

I figure that the compression is not very much higher than stock (9.2 vs 9.0) so that is not a big deal. But in comparison, dropping down to less than 8 to 1 may have a negative impact. This should be a pretty mild combination anyway.
Erich

linkmustang

nice nice