the turbo is off its map at 35 psi ... anyting over that is blowing hotter air into your motor.

also everyone running a 12cm housing with the wastegate blocked pushing 30psi+ should really check there drive pressure ... I bet you would be suprised how high and how much its really hurting the performance of your truck

 

ok so i have a 12cm housing. i will tell my dad to watch it around 35psi. he said it was smoking alot so i didnt know if that could be why or if he is just pressing the gas too much. i think he is just having fun with it being a 50yr old kid