question on my compression #'s

[Mr. Rustypwnz]

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]

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]

yeah i did it its 10.4:1 I thought it would be higher, but premiums already too damn expensive lol