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Did the mod last night and went for a spin, man oh man... a lot more urgency from 2500-4500rpm. Love the sound of boost at this level too! Won't even bother wiring a switch in as there seems to be enough people on the forums that have done this mod and not have had any problems with the solenoid at a constant 8/9psi.

Can't decide if it's still worth getting a Turbotech boost controller and hooking up a boost gauge though if i'm not going to bother with modding the turbo anytime soon.

edit: got the tt boost controller, want to run 9psi all the time.

Edited by webng

Ive read this few times...

Wires and I don't go together but anyhow I'm going to do it...

Do you CUT the wire then ground it off... OR

Do you T off the wire and ground it off... ????

Ive read this few times...

Wires and I don't go together but anyhow I'm going to do it...

Do you CUT the wire then ground it off... OR

Do you T off the wire and ground it off... ????

I cut it completely and grounded it for mine.

This is how I did mine with the switch (red inverted hazard light). Testing it many many times. No difference on the R34-GTT. For the guys that did it on the 34s, are the vacumm tubes to your actuator and solenoid still stock and are the restrictors (2 small sized air restrictors that resembles small beads) removed ? I know for a fact that having the restrictors makes shitload of difference on the boost.

post-36355-1185948614_thumb.jpg

cut it and ground it for sure.

The other way (taping into wire) might work but it could also be giving the ecu 12v on a wire it expects to have 4v which can't be too good for it.

  • 2 weeks later...

Ground the wire from the solenoid side to the chasis, this will hold it open (7psi) all the time. Leave the ecu end as is (well wrap some tape to insultate the loose end)

  • 2 weeks later...
Did this on the weekend, car definitely feels a lot nicer to drive!

Now go get one of those Turbotech boost controllers for $35 delivered and run 10psi all the time... "nicer" becomes "exciting"! :laughing-smiley-014:

Now go get one of those Turbotech boost controllers for $35 delivered and run 10psi all the time... "nicer" becomes "exciting"! :laughing-smiley-014:

I wish it worked for me, I had one installed and it would constantly spike to 15psi under load in any gear beside 1 & 2.

So I threw it in the bin and used the standard solenoid trick and now im gettin a solid 7psi all the time.

Thanks for the guide btw it fixed my prob now I dont have to worry about blowing my turbo :S

  • 2 weeks later...

I can't see how you guys notice so much of a difference?? I done it, went like shit. My car hits 8psi as soon as i put my foot down then holds to 10.5psi to redline. Thats woth stocka boost controller. Different cars i guess..... :P

^^ dodgey gauge?

running 10.5 PSI with a computer? if they do it?

im PISSED at this mod. My car refused to go into high boost with and without the wire connected/disconnected... no idea what was happening.

Greddy Spec 2 boost controller soon. Hopefully fix it!

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