Blackbird

The wastegate is supposed to maintain whatever boost level it is set to correct?

So if it's set to 5psi and then I throw a restriction like an IC into the mix the system should still crank out 5psi right? The wastegate should just dump less air to keep the boost level where it should be. Correct or no?


thanks!

JZ 97 SS 1500

iTrader: (2)

Yeah...

Blackbird

hmm ok, then there is definetly something wrong.

2 STS systems that had IC's added both see boost loss.

Time to call STS

MIGHTYMOUSE

iTrader: (59)

i would say yes IF your pressure source to the wastegate is located at the intake.

if the boost signal is located anywhere before the new intercooler, the w/g will not be aware of the pressure drop after the intercooler and overall boost (if you measure it at the intake manifold) will drop off.

F8L Z71

I talked with Dave just a min ago and he said on a conventional turbo that woul dbe the case but our wastegates are set up on the turbo so pressure changes after the IC might not make a difference on the settings. Does that sound right? Or maybe something to do with temperature changes and the diff. between where they are being measured?

F8L Z71

Ahh, Thx MightyMouse. I didn't see your post before making mine. Then what Dave at STS said is right on.

MIGHTYMOUSE

iTrader: (59)

yea they have it hooked straight to the turbo to avoid running more vac line all the way to the front of the car.. so the w/g never sees the boost drop after the intercooler.

Blackbird

ahhhhhhhsoooooooooo

Great info. Add that to the list of things to change