Mr. Rustypwnz Advanced Member Jun 1, 2005 1,761 63 69 indianapolis/ valdosta ga Sep 13, 2008 #1 Sep 13, 2008 #1 I have gt40x heads milled a total of .090 yes that much!! so what would that be in the ballpark of 11-1:1? they are the 64cc heads stock, with a stock hg's and stock pistons.. thanks josh
I have gt40x heads milled a total of .090 yes that much!! so what would that be in the ballpark of 11-1:1? they are the 64cc heads stock, with a stock hg's and stock pistons.. thanks josh
Vipersix Founding Member Feb 25, 2001 434 0 0 Clarksville, TN Sep 14, 2008 #2 Sep 14, 2008 #2 Compression = (Cylinder Displacement Vol. + Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.) / (Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.)
Compression = (Cylinder Displacement Vol. + Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.) / (Deck Clearance Vol. + Gasket Thickness + Piston Dome Vol. + Combustion Chamber Vol.)
Mr. Rustypwnz Advanced Member Jun 1, 2005 1,761 63 69 indianapolis/ valdosta ga Sep 15, 2008 #3 Sep 15, 2008 #3 yeah i did it its 10.4:1 I thought it would be higher, but premiums already too damn expensive lol