vacuum diagram for twin wastegates [Archive] - The Toyota Supra Forums

: vacuum diagram for twin wastegates


the lark
12-04-2005, 05:47 PM
I havefull-race manifold with twin waste gates, and a gready boost controller. Both companys directions have different vacuum diagrams. Does anyone have a vacuum diagram that works with this twin set-up.

ChrisB
01-08-2006, 04:12 PM
I havefull-race manifold with twin waste gates, and a gready boost controller. Both companys directions have different vacuum diagrams. Does anyone have a vacuum diagram that works with this twin set-up.

You'll basically want to split the lines going to both side and the top ports on the wastegates. Run pressure source (either from nipple on turbo - if have one) or from IC piping right after turbos to a T and the T to the side ports on both wastegates. Then use the same pressure source or a new pressure source to the boost control solenoid, then run the output of that into a T and the T to the top ports on both wastegates.

Hope that helps.
Chris.