Max compression ratio with 87 octane
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Joined: Feb 2007
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From: Vancouver, B.C. Canada
Car: 83 GMC G3500
Engine: 350 w/ EBLFlash and TBI heads
Transmission: TH400
Axle/Gears: 4.56
Max compression ratio with 87 octane
What is the maximum safe compression ratio you can run on 87 octane pump gas?
83 350 chev truck motor with 083 heads and TBI fuel injection.
Mike…
83 350 chev truck motor with 083 heads and TBI fuel injection.
Mike…
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
About 9:1 or so. Depends on the cam, but assuming a small one, 9-9.5:1.
If you're loading it doing with a lot of weight, *cough*, then i'd stay VERY conservative on it, and look at a very good cooling system above all. (ie, bathtub sized radiator).
If you're loading it doing with a lot of weight, *cough*, then i'd stay VERY conservative on it, and look at a very good cooling system above all. (ie, bathtub sized radiator).
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