OK i used the search function and cannot find anything... I got tired of looking and so i figured i would ask. I have a 94 5speed with 5inch exhaust, custom plate, custom air filter set up. I still have the ole' Wh1c turbo and was wondering what you guys thought was to much boost. I know on the hx35 its 32-35 for longevity. Is the Wh1c any different?

 

i think 35-37 or so would be about the limits

 

it will befine to run it up to 35-40 but it is just going to be pumping hot air in your engine

 

32 is all the harder you should push that wh1c

 

Ok thanks guys! i just didnt know where the drive pressure started taking over... didnt wanna ruin things

 

your drive pressure will depend on your wastegate and exhaust housing size. You will need to plumb a guage into your exhaust manifold to check and tune your drive pressure.

The goal is to get 1psi of boost for 1psi of drive.

 

Ok! Thanks 94 12valve

 

whas drive pressure?

 

drive pressure is the pressure comming out of the exhaust manifold that drives the turbine wheel. if your drive pressure is too high it works just like an exhaust brake