TTRickeh Posted March 22, 2011 Share Posted March 22, 2011 The GReddy profec spec B ii has a seperate pressure port to sense the boost pressure, so having it T'd off to the boost guage wont be the issue IMO as it is not connected to any VSV's or the boost solenoid, I wouldn't think so anyway as that's what mine was plumbed in like when I got it and it worked fine. I think there must be a kink in the pipe somewhere or something up where the stock pipe is supposed to end up where it's T'd off the manifold. Quote Link to comment Share on other sites More sharing options...
monsween Posted April 20, 2011 Author Share Posted April 20, 2011 Right back to this. Seems to be no kink in the pipe. This is from the back of the boost controller being tee-d up to the boost controller Which is in turn going through the bulk head and ending up here The pipe i was referring too on page one comes off and goes to the turbo timer unit. Quote Link to comment Share on other sites More sharing options...
madwoody1 Posted April 20, 2011 Share Posted April 20, 2011 is that pipe plumbed into the presurised part of the system i.e. the one with the small tank under the inlet manifold? Quote Link to comment Share on other sites More sharing options...
Scott Posted April 20, 2011 Share Posted April 20, 2011 I don't think that's right. The one you are pointing to originally goes to the VSV, unless the other end simply goes to the manifold. You want manifold to boost controller to monitor the pressure. You also want the boost solenoid between the turbo housing and the turbo WG. Boost controller monitors the manifold pressure and fluctuates the solenoid to suit. The fact you are on that pipe would tell me you are in the "pressure tank" line. That would mean the boost would stay high until the pressure tank bled off (can't remember when this happens). Time to get your hands dirty or get someone who knows what they are doing to fix it Quote Link to comment Share on other sites More sharing options...
monsween Posted April 20, 2011 Author Share Posted April 20, 2011 Looks like it, thinking about putting another Tee in the manifold pipe that the turbo timer comes off and then see what happens. That line still goes to the vsv below the turbo's Quote Link to comment Share on other sites More sharing options...
Scott Posted April 20, 2011 Share Posted April 20, 2011 Looks like it, thinking about putting another Tee in the manifold pipe that the turbo timer comes off and then see what happens. That line still goes to the vsv below the turbo's If it still goes to the VSV, and the other end is the bit that is connected to your gauge etc, then the boost gauge and boost controller will only see the levels when the VSV is open. Totally setup wrong if what you are saying is accurate I'm afraid. Quote Link to comment Share on other sites More sharing options...
monsween Posted April 20, 2011 Author Share Posted April 20, 2011 Doesn't surprise me for the garage that fitted it. I could have done a better job and i don't know much. What vsv is that? wastegate? Quote Link to comment Share on other sites More sharing options...
James Posted April 20, 2011 Share Posted April 20, 2011 Was it Wallace that fitted this in their previous ownership? Quote Link to comment Share on other sites More sharing options...
Scott Posted April 20, 2011 Share Posted April 20, 2011 I can't remember bud, it might be the EGCV VSV. The Wastegate should be blocked off and disconnected as it isn't being used anymore (with the EBC in place). Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted April 20, 2011 Share Posted April 20, 2011 Mate you want boost control stuff to come off the inlet manifold. Looks like you need a complete system redesign Quote Link to comment Share on other sites More sharing options...
monsween Posted April 20, 2011 Author Share Posted April 20, 2011 This wasnt wallace it was down in glasgow..... Quote Link to comment Share on other sites More sharing options...
Scott Posted April 20, 2011 Share Posted April 20, 2011 This wasnt wallace it was down in glasgow..... Whereabouts, always good to know where to avoid Quote Link to comment Share on other sites More sharing options...
monsween Posted April 20, 2011 Author Share Posted April 20, 2011 Oh they went out of business 6 months after i went to them 2 years ago Quote Link to comment Share on other sites More sharing options...
monsween Posted August 22, 2011 Author Share Posted August 22, 2011 Bit of an update on this one, After speaking to Lee about my car and learning more about the setup i managed to have an educated guess as to what was the problem was. So the boost controller/gauge was (still is for the next few days anyway) wired into the VSV system so it wasn't reading the correct pressure. The trapped pressure was going from one VSV through the hard pipes to the second VSV. After checking the IACV Actuator was working correctly and there being no pressure after the vsv but pressure before it i decided to root around my tool box for the illusive vsv. I'd bought these 2 years back and thought they'd come in handy. Was i wrong? Nope. Fitted the IACV VSV and off i trotted to give the car a good seeing to. And it's held up perfectly. Always get 1.1bar boost (2nd cat still in) and can "bleed off" the pressure like before. Next job is to plumb in the boost controller feed and boost gauge feed to the 5mm BOV activation line as this goes back to the inlet manifold and will give me my true boost reading. Can i say a MASSIVE thanks to Lee at SRD for giving me 2 minutes of his time at the pod which in turn put me on the mindset and manage to fix the motor. Well chuffed I'll update in 2 days when this has gone all to pot and is just a magnificent dream. Quote Link to comment Share on other sites More sharing options...
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