Re: Compression ratio converted to PSI

Posted by Aaron Ford on September 06, 2006 at 10:23:27 from (72.84.50.239):

In Reply to: Re: Compression ratio converted to PSI posted by Josh in Pa on September 06, 2006 at 07:32:55:

Compression Ratio must be calculated using the volume of the cylinder/gasket/combustion chamber versus the volume of the combustion chamber and the gasket.

Now the cylinder pressure is based on the filling and retention of pressure of the cylinder. This is affected by the cam profile (valve events and overlap) and the sealing of the rings/valves.

The two are related, but there is no direct comparison.

Aaron

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