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R34 Question

R34P3R

By R34P3R,
in Western Australia

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NISZILA Grand Master

NISZILA

Posted
Posted

Well... if you want to get technical, it runs a two stage boost. First 5 psi and then up to 7psi at higher revs. You can earth the one wire and make it 7 psi all the time though. This is the same for the R33. R32's run 10 psi.

Just to clarify, I'm talking about GTT's, GTSt's here... not GTR's

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Topaz Grand Master

Topaz

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Found it, R34 GTT Stock boost is 7psi, just under 0.5 bar.

R34 GTR is same as 32/33 GTR... which is what Topaz was referring to I believe.

Wow, I really thought the GTT's were 11psi like the 32GTR's. 7psi is shit! :P

Not sure what 33GTR's are stock, 34GTR's are 1bar stock.............................. I'm 95% sure

Edited by Topaz
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Marco-R34GTT Grand Master

Marco-R34GTT

Posted
Posted
Well... if you want to get technical, it runs a two stage boost. First 5 psi and then up to 7psi at higher revs. You can earth the one wire and make it 7 psi all the time though. This is the same for the R33. R32's run 10 psi.

That changes when you get the RB20 actuator yeah??

10 psi??? :P

You're doing that to your car aye??

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NISZILA Grand Master

NISZILA

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i am running 0.85 bar(12 psi) daily.... izit bad then?? lol

12 psi will be fine, but you may want to check that its not leaning out at all. Upgrading your fuel pump is always a good idea when running more boost. Probably wouldn't go too much higher than that until you have some other bits and pieces to support it.

That changes when you get the RB20 actuator yeah??

10 psi??? :)

You're doing that to your car aye??

Yep thats right :D Cause the R32's are 2 litres, they run 10 psi to make up for the smaller capacity. By changing to the RB20 wastegate actuator, you are getting 10 psi instead of 7 psi. This is a lot better than a boost controller as there is no chance of boost spikes, therefore safer for your turbo. You still need to ground that one wire to get rid of the two stage boost, and then bypass the solenoid. There is a tutorial somewhere here on SAU :)

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Marco-R34GTT Grand Master

Marco-R34GTT

Posted
Posted (edited)
Yep thats right :P Cause the R32's are 2 litres, they run 10 psi to make up for the smaller capacity. By changing to the RB20 wastegate actuator, you are getting 10 psi instead of 7 psi. This is a lot better than a boost controller as there is no chance of boost spikes, therefore safer for your turbo. You still need to ground that one wire to get rid of the two stage boost, and then bypass the solenoid. There is a tutorial somewhere here on SAU ;)

Link??

So with the actuator you don't need a boost controller??

Edited by Marco-R34GTT
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NISZILA Grand Master

NISZILA

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Here you go Mark ;)

clicky

With the actuator you don't need a boost controller. This is how it works

First, ground the one wire mentioned in the tutorial. This will change it to constant high boost mode meaning istead of a two stage boost of 5 psi then 7 psi above 4500 rpm, you are running 7 psi all the time.

If you put the RB20 wastegate actuator in and bypass the solinoid, you now have 10 psi all the time. You have to bypass the solinoid cause it will limit you to 7 psi. The solinoid is what is used to create the two stage boost. Since you are not running a two stage boost anymore, you don't need it :P

Edited by NISZILA
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