thicker metal head gaskets

[smoker]

Originally Posted by 30psi

Yeah I make it 8.65:1 with 83mm pistons, and with 84mm pistons 8.85:1

I'm using 0.5mm oversize pistons so I guess I have 8.7$:1, hope to gain more power with less boost pressure & lag....or it might blow a hole in a piston
Tested the mileage again and it's come out at 36mpg so i think it's helping the economy a bit