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Flieger Flieger is offline
Max Sluiter
 
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Join Date: Mar 2006
Location: So Cal
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Yes, the 911S has a higher dome than the 911T. The dome fills the combustion chamber and makes the volume of the gases in a compressed state smaller than with a flat piston. Smaller compressed volume means greater compression ratio. Minute changes in the compressed volume can have a huge effect on compression ratio compared to a larger expanded volume from something like a larger bore. Simple geometry and math.

You cannot predict torque becuase there are simply too many variables in mechanical components- let alone weather, atmospheric pressure, temperatures ambient and engine, oil type, fuel quality, engine wear.

A supercomputer may be able to use a complex formula but the best way to predict power is ask a knowledgeable engine builder about similar engines tested on the dyno in the past.
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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
Old 11-05-2008, 09:28 PM
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