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boost controller questions??

firebladejr

By firebladejr,
in Engines & Forced Induction

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firebladejr Collaborator

firebladejr

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Ok I've searched the forums to get some info in installing a boost controller and now know to make sure that the correct side of the manual boost controller is mated to the wastgate actuator and the other side to the turbo compressor housing.

My question is:

In a r33 gts-t which side of the hose (once both sides are removed from solenoid) is the wastgate actuator side? I'm not sure if it is the side closest to the firewall or the side closest to the front of the car. By "side" I mean when standing on the passenger side of the engine bay looking down at the solenoid, one side of the hose is connected to the cabin side and the other to the front side of the solenoid. I don't know which side is what.

Also, once I disconnect these hoses from the actuator, I am going to have a left over hose from the solenoid... what do I do with it? Plug it?

thanks in advance.

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JimX Grand Master

JimX

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I'd like to help but I'm not really knowledgable of the whole boost control setup. My car came with an electronic boost controller, and one vacuum line from it goes to the actuator. I haven't looked thoroughly enough to see where the other lines go. Your description of the actuator sounds right, if that's of any help. Sorry I couldn't help any more!

firebladejr Collaborator

firebladejr

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is the boost solenoid that metal thing that is near the strut tower and air box? Whatever that thing is I have taken the two rubber hoses off the top of it (one goes to actuator the other goes into the turbo) and placed the bleed valve in between the two. The valve is a DNA Motorsport valve and it doesn't seem to be boosting more than standard (about 8psi) so I'm not sure if that was the correct hose... It's too hard for me to test boost now anywayz so I might leave it till tomorrow. The neighbours have the shits, its raining and dark and all i get is sideways everytime I put my foot down :)

Redbaboon Collaborator

Redbaboon

Posted
Posted

Hey lads,

Remove the turbo heat shield and this appears a little simpler. There is a hose that runs from the soleniod to the wastegate actuator (brass hat-thing) - the actuator is easy to identify because it has a metal arm that physically moves and opens the bypass on the exhaust side of your turbo.

When installing a bleed valve, simply cut this pipe and insert your valve. Be careful when upping your boost, these bleed valves have been known to produce boost spikes and increase a few psi boost with minimal turning of the knob.

Oh yeah, and you don't have to remove/cut any other pipes or lines for the install (unless you are installing an electronic boost controller, in which case you are supplied with a different solenoid and pressure sensor).

Hope it helps,

firebladejr Collaborator

firebladejr

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I was told not to cut any hoses?

If you cut the hose you won't be bypassing the factory solenoid in which case you will get your boost increase after 5000rpm. From what I've heard u don't need to cut the hose but simply "unplug" the hose from both sides of the solenoid and add in ur bleed valve.

Does anyone have a pic of their bleed valve installed? It would help heaps as I plan on tuning the boost tomorrow.

Birnie Veteran

Birnie

Posted
Posted

If you go to the Turbosmart website, it has installation instructions for the "Gated" Boost Controller and it has a pic of the Turbo by itself with arrows pointing to what's what.

http://www.turbosmart.com.au/pdf/FG-GBCV-BT.PDF

firebladejr Collaborator

firebladejr

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ok all done.

For those that are going to do this here are some tips:

The hose that you need is the one that goes from the actuator (a goldish coloured hat-shaped thing in front of the turbo) to the intercooler piping up near the airbox. You will notice a T-Piece in this hose, that t-piece goes into the boost solenoid. Start by pulling the t-piece out. In it's place put your bleed valve, remember to plug the side of your bleed valve that is supposed to be attached to the actuator line into the side of the hose closest to the actuator. With the extra hose that comes off the solenoid, I simply put a screw in it to keep it blocked.

And that's it! Should take about 10-20 mins. It really is a simple job once you find out which hose to use :P

  • 2 months later...
lukits01 Experienced

lukits01

Posted
Posted

Thx GTR R32

http://www.greddy.com/Technical/profec_frame.htm

Im assuming the intake manifold hose is the one that leads from the plenum to the BOV?

so just use a T-fitting and connect this to the controller?

Not sure about the wastegate actuator connection though. Am I suppose to disconnect the hose that leads to the solenoid and replace it with a hose to the stepper motor?

  • 2 months later...
semtex Apprentice

semtex

Posted
Posted
ok all done.

For those that are going to do this here are some tips:

The hose that you need is the one that goes from the actuator (a goldish coloured hat-shaped thing in front of the turbo) to the intercooler piping up near the airbox. You will notice a T-Piece in this hose, that t-piece goes into the boost solenoid. Start by pulling the t-piece out. In it's place put your bleed valve, remember to plug the side of your bleed valve that is supposed to be attached to the actuator line into the side of the hose closest to the actuator. With the extra hose that comes off the solenoid, I simply put a screw in it to keep it blocked.

And that's it! Should take about 10-20 mins. It really is a simple job once you find out which hose to use :D

Thanks for the quick rundown fireblade. I installed mine today with minimum fuss. I was very surprised at how easy it was once I worked out what was what. I now have my boost dialed up to 0.8 bar and it's rockin. The boost response seems much smoother across the rev range now too.

Next step is to add my new Air/Fuel ratio metre so that I can intelligently use my S-AFC(Gen 1).

Thanks again.

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