pistons for PSI

[NO SLO PK]

Hey Corey, in my experience you'll make more power with higher boost/lower compression. You lose 4 percent power for every 1 point drop in compression. You more than make that up by running higher boost.

Honestly, I wouldn't go any higher than 9:1 if you want to run forced induction with unleaded premium.

By the way my engine has 10.5:1 with a 9psi blower. It's a really bad combination because of constant problems with detonation. I'm swapping to aluminum heads with bigger chambers asap. I'll be able to run more boost, more timing, and a leaner A/F ratio. Should be sweet.

Good Luck!

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Russ L
'91 LX
Procharger, 3 row intercooler, extrude honed Cobra intake, Mac full Length Headers, 30# inj., 73mm C&L, 75mm tb, E303 cam, 289 rods, ported E7 heads, MSD, T-Rex w/255 lph Walbro, 5 lug conversion, Cobra R wheels, 3.27 gears and Moser Axles.

[This message has been edited by NO SLO PK (edited 04-14-2001).]