SpeedI2acerX

iTrader: (2)

So I've been having issues with my gtx3576r for quiet some time now and thanks to a couple of people here in the forum I finally figured out that the wastegate that came with The turbo was crap. I went out and got a Turbosmart wastegate with a 18psi spring. I put the wastegate on and notice that I'm only boosting 20psi. I'm on e85 so I should be boosting at least 26-27psi. My question is do I have enough preload? Shorting the arm a little more? Or do I get stiffer spring? I have an ebc by the way. I do have an air compressor and when I blow air into the wastegate it'll "crack" open at 18psi. I have it set to the standard preload which is 3 full turn.

SpeedI2acerX

iTrader: (2)

Bueller?

ronaldo9

iTrader: (2)

What was your duty cycle at 20psi? Are you sure you don't have a boost leak. How much pressure can you hold just on the wastegate and no duty cycle?

SpeedI2acerX

iTrader: (2)

Not sure about duty cycle but it's a 18psi spring. I'm pretty sure I don't have a leak, from what I can tell.

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ronaldo9

iTrader: (2)

Also are you sure you have the wastegate connected the right way?

SpeedI2acerX

iTrader: (2)

Yes I do. Theres only 2 ports 1 goes to the wastegate and 1 to the uicp. It hold boost fine it's just not making the psi that it should. I was probably tuned on a bad wastegate so somehow the new one it's to be tuned again.

LetsGetThisDone

iTrader: (1)

Are you actually tuning boost via the ECU? An 18psi wastegate spring and the car is making 20psi of boost sounds like you're running 0 wastegate duty cycle.

SpeedI2acerX

iTrader: (2)

After messing with the preload I was able to see 24psi but that's as tight is it'll go. I probably need a stiffer spring.

LetsGetThisDone

iTrader: (1)

Are you tuning boost at all with the ECU?