Guest Garfy Posted September 23, 2004 Share Posted September 23, 2004 I have noticed lately that the first time I venture into second turbo rpm's after having started from cold (having let it warm up first) it doesn't seem to behave correctly, it kind of holds back a bit, and then at around 5500 rpm it suddenly kicks in and behaves parfectly normally after that first time. I've only really noticed it the last 3 or 4 times, any ideas? I'm guessing it could be a sticky actuator or something along those lines. Garfy Link to comment Share on other sites More sharing options...
Jake Posted September 23, 2004 Share Posted September 23, 2004 (Wild guess) Leaking pressure reservoir tank? Link to comment Share on other sites More sharing options...
richardharmon Posted September 24, 2004 Share Posted September 24, 2004 I had a very similar problem, turned out it was simply a split hose. The split wasn't really visible when I visually inspected but must have been opening up under pressure. Check all the small rubber hoses running between the vsvs and actuators, take them off and give them a good looking over if you don’t see anything obvious. Hope it's not the pressure tank, looks like a bugger to get at! You might find this link useful: Twin Turbo Description I have attached a picture indicating the location of the pipe that was split on my car, this is the pipe connecting the exhaust gas control valve to its vsv: Link to comment Share on other sites More sharing options...
afennell Posted September 24, 2004 Share Posted September 24, 2004 Are the two blue pipes near the suspension strut for the control of a boost controller. I ask because will be plumbing an Apexi unit back in and was wondering if it would be possible for a pic to where they go. Thanks for your help Link to comment Share on other sites More sharing options...
Zed Posted September 24, 2004 Share Posted September 24, 2004 Blue pipes ? These sound like upgraded pipes, all the pipes I've ever seen on a standard supra are black. :flame Dev Link to comment Share on other sites More sharing options...
richardharmon Posted September 24, 2004 Share Posted September 24, 2004 Yes, the blue pipes you are talking about are for my Blitz boost controller. It's difficult to get a good photo of what's going on with the pipes down there, I have attached a picture that might help though. The first part shows the location of the waste gate VSV, you'll need to disconnect both pipes and cap them off. The second part of the picture shows where the blue pipes are connected to the turbo assembly. The bottom black pipe that is capped off, is one of the pipes that used to connect to the waste gate VSV. Remember this is the plumbing for a Blitz controller, while I think they all work in pretty much the same way, the instructions for installation might be different with the Apexi, I don't know? I hope this helps anyway. Link to comment Share on other sites More sharing options...
tango Posted September 24, 2004 Share Posted September 24, 2004 Hi guy, I take a look at your picture (plumbing.jpg), I have a manual boost controler pipe in same as your blue pipe, but didnt blank off the black pipe, what different will that make? cheers Tango Link to comment Share on other sites More sharing options...
afennell Posted September 27, 2004 Share Posted September 27, 2004 That helps allot, thanks for taking the pics. I will have a go his weekend coming. Link to comment Share on other sites More sharing options...
richardharmon Posted September 27, 2004 Share Posted September 27, 2004 Originally posted by tango Hi guy, I take a look at your picture (plumbing.jpg), I have a manual boost controler pipe in same as your blue pipe, but didnt blank off the black pipe, what different will that make? cheers Tango That's probably fine, I assume you have not removed the pipes from the stock waste gate VSV, so all you are doing is bleeding off some of the pressure, preventing the existing control mechanism from opening the waste gate as early. Link to comment Share on other sites More sharing options...
richardharmon Posted September 27, 2004 Share Posted September 27, 2004 Originally posted by afennell That helps allot, thanks for taking the pics. I will have a go his weekend coming. That's fine, hope it helps for the Apexi install. Link to comment Share on other sites More sharing options...
afennell Posted December 7, 2004 Share Posted December 7, 2004 Originally posted by richardharmon Yes, the blue pipes you are talking about are for my Blitz boost controller. It's difficult to get a good photo of what's going on with the pipes down there, I have attached a picture that might help though. The first part shows the location of the waste gate VSV, you'll need to disconnect both pipes and cap them off. The second part of the picture shows where the blue pipes are connected to the turbo assembly. The bottom black pipe that is capped off, is one of the pipes that used to connect to the waste gate VSV. Remember this is the plumbing for a Blitz controller, while I think they all work in pretty much the same way, the instructions for installation might be different with the Apexi, I don't know? I hope this helps anyway. Sorry about this but i have been very busy and not had time to plumb my boost controller in after sending me a pic to help. so after referring back to the advise given i was wondering, the pic shows one turbo, do you do the same to both turbo or just the one near the front of the engine. thanks for the help. Link to comment Share on other sites More sharing options...
richardharmon Posted December 7, 2004 Share Posted December 7, 2004 Just the one near the front of the engine. It's the front (no1) turbo that has the waste gate attached to it, the one near the back attached to the no2 turbo is the exhaust bypass valve and you don't need to modify the piping to that at all. Link to comment Share on other sites More sharing options...
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