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estimate it ...... Posted by Kevin K [Email] ![]() ![]() In Reply to: What have I done to my compression ratio?, alanb ![]() |
CRf = 1 + [Vs*(CRi-1)]/[Vs - Vm*(CRi-1)]
CRf = final CR
CRi = initial CR
Vs = Stroke volume ( bore area times stroke)
Vm = volume lost due to head machining
Vm is some percent of : (bore area times thickness removed)
and can be estimated based on observation of chamber shape.
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