Whats the max boost out of stock internals? How much HP out of that..... ALso how much horsepower can I get out of 6.5 PSI. I have a B18c1 GSR motor. Thank you!!!

 

I have a friend that was pushing 12psi on a stock GSR motor.HE has a headgasket which drops the compression....Dynoed at 280WHP

 

with head studs and a good standalone like HONDATA and good tuning 12 is possible but you will see a ring seal go. 10 is good but for daily driving dont be stupid ride around like at 5 or 6 and dont beat on it if you dont have to(which is hard no to do when you boost)

good luck and have fun

 

ill stay wiht 6.5, its a daily driver i will rebuild in the next year or so