chevitz

Right now I have a 12cm housing on my 95 with a piers elbow and I can hit about 30 lbs max boost. with my few mods would it help me to go to an 18cm nonwastegated housing off a 93? A buddy has one I could probably have. Also, do I turn to allen screw in or out on that elbow for more boost. They say 35lbs is max turbo efficiency for a stocker, might as well have er maxed out.

cumminsdriver635

Dont go to an 18cm yet. You screw the allen screw in. A 16cm is about as big as I would want to go without a decent bit more fuel. I was making 40psi with a 12cm housing, and I am making about 36psi with this one. There isnt really a whole lot of difference in spool up, but I wouldnt want to go to an 18cm. And yes, 35psi is about all that is needed on a stock turbo.

Eric

RowJ

I agree! You will not like the 18 cm2 housing. You are not yet using all of the one you have??

RJ

chevitz

Thanks guys I won't go to the bigger housing, but I will screw in that screw a bit.