maverick771

Im buliding a twin turbo setup do i need to run 2 10psi wastegates or 2 5psi wastegates to have 10psi of boost...Also do i need both a wastegate and a bov

luckythirteen13

you need two waste gates at 10psi that way each turbo stops making boost when the car hits 10psi. if you ran two 5psi waste gates, the the waste gate would open up as soon as the motor had 5psi slowing each turbo down.

yes you need a blow off valve. the bov is there to release boost air from the front of the tb when you let off the gas. without one its possible to damage the tb and the turbos. make sure the bov is before your blow through maf

maverick771

I dont have a maf its a carb but ive had it fixed for blow through.. but i understand what your saying thats what i thought but ive had a few people tell me that i didnt need both

luckythirteen13

a waste gate and a bov are too complete unrelated things. a waste gate controls how much boost the turbo makes. a bov releases boost in the intake when you let off the gas