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OmgAwd
12-01-2008, 09:45 PM
Today I tested the wastegate actuator on my 1G.
Results - 12.5psi it started to open and was fully open at 15.5psi.
Time for a new one?
Kracka
12-01-2008, 09:52 PM
Why do you think its shot? Sounds like its functioning perfectly to me.
OmgAwd
12-02-2008, 07:16 AM
It's supposed to open at 11 and it seems like I'm making way too much boost. I know I shouldn't trust the stock gauge but it keeps going past max. I'll get an aftermarket soon.
At-Least-It's-An-Evo
12-02-2008, 07:27 AM
It's supposed to open at 11 and it seems like I'm making way too much boost. I know I shouldn't trust the stock gauge but it keeps going past max. I'll get an aftermarket soon.

Uh... did you make the numbers up?
Shane@DBPerformance
12-02-2008, 09:51 AM
If you changed the stock exhaust or intake system piping, then it will make more boost than stock.
FattyBoomBatty
12-02-2008, 11:00 AM
The stock gauge guesses anyway.
OmgAwd
12-02-2008, 11:01 AM
Uh... did you make the numbers up?

What?
OmgAwd
12-02-2008, 11:02 AM
If you changed the stock exhaust or intake system piping, then it will make more boost than stock.

My exhaust and intake are not stock but I tested the wastegate actuator with it off the car on an air compressor!
Shane@DBPerformance
12-02-2008, 12:35 PM
A wastegate on a car under boost will open earlier than it will on the bench do to backpressure pushing the flapper open. The backpressure essentially makes it act like a weaker spring.

When you put aftermarket exhaust on a DSM it makes the car run more boost, sometimes to the point of uncontrollable boost creep.
4g63tcrazy
12-02-2008, 01:10 PM
Get a real boost gauge before you make any more assumptions.. The stock gauge does nothing for you.