Do low compression pistons cause lower vac levels? I am almost 100%sure I have no vac leaks but I'm getting ~12hg vac at idle. Is that right or am I overlooking a leak? Does anything else cause low vac?

i'm getting close to 18hg. i would rig up a leak tester on your turbo and see if you loose any air any whare.

http://home.bendcable.com/optimuspeterson <<<<HRC Stage 2 and Star Instructions
95 Eclipse - SOLD | 93 BMW 318is - SOLD | 2000 S-10 Extreme on 20's - SOLD
93 Toyota/shaved/bagged/body dropped - SOLD | 97 GSX - SOLD
2006 Scion tC

i played around with the (AEM) timming gears! now i have like 15-16 hg
i was @ 12-13 hg.

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Thanks. I'll double check everything (don't have a tester)....

Finally got the car painted eh? Looks AWESOME!!!

Is that vacuum with all accessories off? If so, 12-13 inHg is pretty low -- even with lower compression pistons. Actually, I did not see any big difference in vacuum at idle from stock pistons to 8.8:1 pistons. Just check for a possible vacuum leak.

Turbosrule, that hood and paint job looks sweeet! What kind of hood is that?

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Kon C

"Sometimes, a man has to do what a man has to do."