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A15 Compression calculation with GX head | Subject: A15 Compression calculation with GX head by TexasMidget on 2018/4/13 18:48:10
I'll be boring out the A15 after checking and re-checking ring gaps yesterday. When measuring at the top of the cylinder bores, the gaps were well beyond the tolerances. Honing won't work. If I go one size up to 77mm bore size it comes out to 9.12:1. Does this look right?
Felpro HS21199 PT-1. Thickness measurement is on a new gasket so not compressed. GX Head Combustion chamber 28cc A15 dished piston -13 Block was decked -.127
I wanted to explore other piston types but they do not show piston dish cc's. Is there a table on this forum that shows this information? Want to be sure I don't get above 10:1 if I go with a lesser piston dish. This will be for street use.
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