I'm curious how well you can change compression without changing pistons, or the bottom end. I know you can get a little lower compresson with thicker head gaskets, but anything else? This is assuming that you stay with stock heads, but modifying the heads is fair game.

I've always dreamed of a supercharger. It's what I asked about the very first time I posted on camaroz28.com (when I was still stock) and it's still a dream of mine.

The supercharger that I'm looking at is the Procharger P-1SC with the Twin High Flow Intercoolers. I'd only run it at 6 psi, since this is my daily driver, and I'm not interested in pushing the envelope for performance. I'd rather have reliability.

Thanks.

Dan

 

You can cut the pistons. Obviously have to remove then though.

You could take a lot out of the head to drop it some.

 

Head gaskets will change it slightly only other way is to install different head with a lot more cc combustion volume.

 

You don't want to try lowering compression by putting in thicker gaskets. It'll work for some minor changes but you get that quench open too far and next thing you know you're into detonation.

 

Have your heads ported and the combustion chambers opened up to drop the CR. You'll increase power with the SC and have a safer CR.

 

Agreed.

 

I second, errr third that

That or dished pistons are really your only two safe options

 

Dang. How much can you drop compression by opening up the combustion chambers in the heads? Is it significant enough that it's worth the effort?

Thanks for the replies.

Dan

 

Yeah, defintely worth it. I can go from a 8.9:1 with stock 52cc chambers to an 8.4:1 with the chambers ported to 58cc.

So in this case 6cc port =.5 compression drop.