Bypass question

[69bird]

I'm redoing my intercooler piping and wondering where the proper place is to mount my bypass valve? Before or after the intercooler. I have see it done both ways. Which is the right way or does it matter?

[awr68]

Between the TB and IC (after the IC). You want to use it before there's any back charge threw the system.

[Kris Horton]

On my Mustang, my bypass is mounted just before the intercooler, after the blower. That's how the kit came from ProCharger...not sure if that's gospel, just an observation.

[awr68]

Interesting Kris! Jody will have the answer!!

I do know that you need it before the SC...but why you wouldn't want it before the IC I don't know?

[69bird]

anybody else we have a 1-1 tie.

[camcojb]

I have heard to be as close to the throttle body as possible, but have seen many professional companies do it completely different ways. Malitude had one just before the intercooler, and that system was designed by Mark Stielow, Wheel to Wheel, and Nelson Racing Engines. My GTO twin turbo had it after the intercooler, before the throttle body, but 2 feet or more from the tb. I honestly am not sure that it's a big difference where it is as long as it's there somewhere.

The boost pressure in the system from the turbos to the throttle body will be basically equal (short of intercooler restrictions and pressure drop) so as long as it's vented somewhere in there and as long as it's properly sized for the turbos/airflow it'll work fine in my opinion.


Jody