R34 Boost Control

[Matex]

Recently bought a R34 4Dr Turbo, and I was looking at the vacuum lines and noticed that they had just plugged it from the waste gate into the cooler piping in which I assume to stop it from Boost Cutting, as It's just the misses Daily I'm wondering what way the vacuum lines go back into the solenoid.

Here is a picture of how it is currently set-up

And here is the solenoid that currently has nothing going to it? So I'm just wondering if the waste gate goes to top/bottom or if the cooler piping goes to top/bottom

Any help is greatly appreciated

Cheers, Daniel

[rgr34]

looks like the stock solenoid was not being used, the previous owner must of had a aftermarket boost tap/controller and taken it out... how much is it boosting at now?

[Matex]

Wouldn't have a clue, as they have taken the gauges that sit on top of the dash off.

It has a 3inch exhaust and a cooler, so may be doing a bit more then stock, but as its the misses daily want to bring it back to as normal as possible

[rgr34]

it would have to be boosting alot i would imagine.... id probly not use the stock solenoid seing its got the exhaust and cooler... mayb get a cheap boost tap like a turbotech search it on here theres a thread somewhere.... easy to install that rubber hose ur holding plug into it and out the other end to the cooler pipe... and buy a boost gauge adjust it to say 12psi at most....

Edited September 6, 2010 by rgr34

[Matex]

it would have to be boosting alot i would imagine.... id probly not use the stock solenoid seing its got the exhaust and cooler... mayb get a cheap boost tap like a turbotech search it on here theres a thread somewhere.... easy to install that rubber hose ur holding plug into it and out the other end to the cooler pipe... and buy a boost gauge adjust it to say 12psi at most....

Only thing is though that in SA if they catch you with a boost tee it's pretty much straight to regency, and as it's just the misses daily I want to have it as stock looking at possible, so yeah just want to know what line goes where in regards to the stock solenoid.

[lachlanw]

the way that is set up you have a nice 5 psi boost . maybe 6 . leave it like that untill the missus can drive and or gets a boost gauge . to put it back to standard you need a t piece and another bit of hose and the correctly sized restrictor

[Matex]

So it's probably running about 5/6 PSI at the moment? If so great, I thought it may of even been running open boost in that configuration.

Cheers for the help champ!

[Galois]

If it's running straight off the actuator then 5-6 is about right.

As for set up, just after the compressor on the intake pipe heding to the intercooler a small hose goes to a t-piece. One hose goes from the t-piece to the top of the solenoid, the other goes to the actuator. Another hose goes from the bottom of the solenoid to the air feed line before the intercooler.