hey guys if my engine has a C/R or 9:1, what is the max boost i can put on it??
8,6038493984830934 psi. You need exactly this.
No, seriously, :search:
The boost you can put on the engine depends on too many factors, like the turbo being used… This has been covered multiple times.
Too “many” factors, not too “much” 
But the search is your friend here. Otherwise, 8,6038493984830934 psi is your best bet.
Whoops, fixed! 