Look I have 2 engine's

engine 1: this came out of the car and is NA. i'm going to run the supercharger on this engine. The engine doen't goes any modification. so i run 0.5 bar MAX.

Engine 2: This 1 is going to be fully modified. Gassflowed head, Pistons, con rod's, all the bolt's and so on. The guy who's going to flow the head say's that 275 and 400NM easy is possible. (I keep it low to not be disapointed.) I want to run this engine on 1.5 bar.