Right now running 8psi. Looking to go to 14psi. What is the the correct compression Ratio. I want to optimize the psi with c.r. on pump gas 93
Also I'm going to ask anyway " How do you come to this conclusion" is there a formula?

Currant Combo:
10.03 to 1
CC305
LT4 heads 267I @550 & 176O @550
D1SC w/twins

want to order AFR Heads And will not be making any more changes to car
What it is. Is what it is.


Joe

 

I would shoot for 8.7 or so. I think my 8.3 is a little low for 13 psi.

 

Engineermike, Thanks for replying. To your point I think going too low on c.r. is not maximizing a givin boost #. With A 76 CC 210 head from AFR my C.R. would be in the 8.79 range. And I didn't know if I should go lower. Again this will be my last Change to the car and getting the correct Cylinder Pressure is Important...............Any One Else think differently...............Joe