GT-R turbos on the VQ37

Originally Posted by husam2012 The thing is, that's the PSI including the oem boost solenoid which does adjust boost to a certain level. Another interesting thing I found is this

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GT-R turbos on the VQ37

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07-26-2017, 08:38 PM

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Jayhovah

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Quote:

Originally Posted by husam2012

The thing is, that's the PSI including the oem boost solenoid which does adjust boost to a certain level.

Another interesting thing I found is this chart. Look at the standard actuator psi!

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Not sure about that chart... kind of suggests that the spring pressure is 4psi but the boost control will take it up to 18psi... That's kind of out of whack... At that kind of differential I would start worrying that the pressure of the exhaust itself would push the wastegate open.

That being said.. if the standard boost floor was around 12psi I would expect the wastegate pressure to be a little less than that... but I can also think of reasons why you would want to set it up right on the target.

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