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Racer
Join Date: Oct 2010
Location: Franklin, TN
Posts: 5,885
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Compression and Engine Life...
How much does the compression ratio of a race engine effect its life?
Let's say you have a 964 3.6L engine with stock pistons (measured at 10.8:1) and the rev limiter set at 6800 RPM. Comparatively, how long would that same engine last in a race environment if you went to 12.5:1 on the compression ratio with the same rev limit? The same? 90%? 70%? Scott |
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09-05-2012, 11:33 AM
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Max Sluiter
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I would tend to think more like 90%. It will make more torque and stress everything more, but the real stresses arise with rpm (unless you are seriously bumping compression or using a turbo).
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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09-05-2012, 01:24 PM
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1971 Porsche 911S
