twayne24365
Well-Known Member
I was talking to a local engine builder today about compression and whats pump gas safe with iron heads. He told me the static compression doesn't really matter as long as the dynamic compression is below about 9.5:1..
I gave him my engine for example, its about 11.2:1 with a 590 cam, I read that the intake closing of that cam is 80* so he plugged it in his computer and it came out to 8:1 dynamic compression and he said it's pump gas safe....
Any comments on that one?
I gave him my engine for example, its about 11.2:1 with a 590 cam, I read that the intake closing of that cam is 80* so he plugged it in his computer and it came out to 8:1 dynamic compression and he said it's pump gas safe....
Any comments on that one?