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dean dean is offline
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Join Date: Dec 2001
Location: MA USA
Posts: 2,938
Originally posted by air-cool-me

what kind of PSI can i run safely with 7.5-1 and 8-1 with 91 octane and 110 respectively on a 3L CIS motor with a decent intercooler?

thanks for your help

I think it depends on your CIS system. Some run leaner than others. I have read that a lot of people are running 8 to 1 at 1 bar pressure with 93 octane. But that is with EFI. I think most of them do turn down the boost to .8 bar most of the time.

Sorry not very helpful

911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno,
Old 06-17-2005, 06:32 AM
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