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Taking Restictors Out Of Gtr

adam_lateshift

By adam_lateshift,
in Engines & Forced Induction

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adam_lateshift

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Just wondering if when you take the restrictors out of a R32 GTR how safe it makes it. Do you get boost spikes or it stay under 15psi like I have heard?? Was going to put an electronic boost controller in but I would just leave it at 15psi anyway. Please people with experience with this wb.

Cheers

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djr81 Grand Master

djr81

Posted
Posted
Just wondering if when you take the restrictors out of a R32 GTR how safe it makes it. Do you get boost spikes or it stay under 15psi like I have heard?? Was going to put an electronic boost controller in but I would just leave it at 15psi anyway. Please people with experience with this wb.

Cheers

Adam, you can do it this way quite safely. However...

The results aren't as predicatable as you may have been led to believe. The results people get vary from car to car. A better bet is to spend all of $80 or $90 on a Turbosmart bleed valve. That way you can set exactly the boost you want (up to a point).

A bleed valve will not always give a straight line boost response. Mine (by way of an example) carries a little more boost lower in the rev range than at the upper end. A properly set up EBC will give you a flat line all the way across the engine rpm - up to the point where either the turbo can't move sufficient air (& the boost will drop off) or the waste gate can't move sufficient air(&the boost will climb).

  • 2 weeks later...

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