Date: Sun, 19 Oct 2003 01:45:45 +0200 From: "MH" <nomailnopsamhere.no> Subject: Re: Adding turbo to non-turbo engine...
> > Yes. The stroke is the same. =20 > Doesn't necessarily follow that the stroke being the same gives the = same=20 > compression ratio. No, it depends on the 'compression height' of the piston and the volume = of the combustion chamber. Two engines with the same bore and stroke can = have different CRs. > I'd have thought it more likely that the pistons differ - "taller" = pistons=20 > (above the gudgeon pin) will be higher cr than "shorter" ones. 'Taller' pistons (or a thinner head gasket) will cause a higher = compression as they stick out above the block into the combustion space, = making it smaller, thus compressing the same mixture volume into a = smaller space. Shorter pistons, or a thicker head gasket will lower the CR ------------------------------------------- MH '72 97 '77 96 '78 95 '79 96 http://go.to/saab96
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