Calculate Engine's Compression Ratio (CR)

Input Unit Type
1 = Inches 2 = mm
Bore Size
Stroke Size
Head Gasket Bore Size
Compressed Head Gasket Thickness
Combustion Chamber Volume in CC's
Piston Dome Volume in CC's use "-" for Dished Pistons
Piston Deck Clearance    If ABOVE deck use "-"
     
Compression Ratio :1
Total Volume cc



Calculate CR from ALL inputs except Total Volume
Calculate Total Volume from Bore, Stroke, and CR -- this is the volume measured with piston ATDC and the head with gasket installed, and valves closed
Calculate Combustion Chamber Volume from ALL inputs except Combustion Chamber Volume and Total Volume

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