im boosting an b18b and was wondering if i could run a lower compression ratio before boost. i think stock compression is 9.4 to 1. would it be best to run 9.2:1 or should i run 8.5:1. the reason i ask is because im building an ls to run on just motor until i can afford the turbo parts etc. anybody know?

 

just leave the comp ratio the way it is, i believe it is 9:1 which is good for boost because 8.5:1 you lose some bottom end power.

 

thank u. does anybody else have some insight on this topic

 

The way it is should be fine. Not to much not to little. What are your power goals?