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TN ST on revup motor?

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Old May 25, 2006 | 06:07 PM
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Default TN ST on revup motor?

I heard that the only difference is that the engine managment (the reflash) wont work with the revup, if this is the only difference then if i was to go with the greddy EU or utec everything else should work out fine im going to guess. anyone have any input?
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Old May 25, 2006 | 06:54 PM
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Originally Posted by draxxus07
I heard that the only difference is that the engine managment (the reflash) wont work with the revup, if this is the only difference then if i was to go with the greddy EU or utec everything else should work out fine im going to guess. anyone have any input?
The EMS is going to be different and the last charge pipe will not physically fit.
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Old May 27, 2006 | 01:27 PM
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Why do you say this? I'm not questioning your facts at all; on the contrary, I just installed a TN kit on a 05 Touring, and it's having some issues, but to the best of my knowledge it doesn't have the revup engine in it.
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Old May 27, 2006 | 02:41 PM
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Originally Posted by NateP
Why do you say this? I'm not questioning your facts at all; on the contrary, I just installed a TN kit on a 05 Touring, and it's having some issues, but to the best of my knowledge it doesn't have the revup engine in it.

okay, if you just installed it in a non-revup motor car, you're not going to have issues. Do you lack reading comprehension skills?
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Old May 28, 2006 | 02:47 AM
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No, my reading comprehension skills are just fine. If you read the WHOLE short post from me above, you will see that I mentioned that I *did* have issues when installing the TN kit on a NON-revup 2005, which would then be the reason that I asked for Miaplaya to clarify why it wouldn't fit.

I asked because there were fitment issues with the wastegate and turbo on the Touring because of the latest redesign of the kit. Due to the location of the wastegate on the latest revision of the kit, the pipe that supports the turbo couldn't be tilted high enough for the outlet of the compressor housing to clear between the unibody rail and the bracket that supports the headlight, so some material had to be removed from the headlight support bracket.

Had I tried to angle the pipe feeding the turbo up more (since its angle can swivel on the rear mounting bolt's axis), then the wastegate would hit the driver's side unibody rail, which is why I asked the question.

Is that good enough of a reason to ask, or did you just feel like flexing some keyboard muscle?
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Old May 28, 2006 | 06:30 AM
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well, in the case that you're having, you need to go back and loosen all the exhaust routing piping in order to get the turbo placed where it needs to be............or you could try using a shim....that's what I had to do. It takes

1) patience
2) some thought
3) common sense.

there's your keyboard muscle.

oh, did you try clocking the compressor housing?
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Old May 28, 2006 | 07:35 AM
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Maybe I wasn't clear enough in my last post - when loosening the pipe that holds the turbo up, and pushing it all the way up so that the outlet of the compressor housing clears the spot I mentioned before, then (with the latest design of the kit) the external wastegate hits the driver's side front unibody rail.

I have plenty of all three of the useful things mentioned above, and used all of them to try to come up with the best solution.

With the older version of the kit, the gate is mounted right on the pipe that feeds the turbo, at a 90 degree angle to the exhaust flow. I believe people were having trouble with this design, since from research I've found that people were having trouble with the boost spiking once the exhaust flow was freed up from a high flow exhaust.

With the newer version of the kit, the wastegate has changed locations. Instead of being mounted where I just described, which would let you just have one section of pipe between the wastegate and the exhaust after the turbo, this newer design has the gate pointing towards the driver's side front corner of the car; from what I can tell they did this since now the gate is in the direct path of the exhaust flow, sticking straight out of the pipe that feeds the turbo its exhaust gases, starting from the beginning of the bend in that pipe. The advantage of this would be that now the exhaust gases don't need to make a 90 degree turn in order to be kept away from the turbo; now they can go straight into the wastegate's valve instead of heading up to the exhaust housing and spooling (or spiking, in the worst case) the turbo.

I'm guessing that from what you've said that you're used to/looking at/used to working on the older version of the kit, in which your words are entirely accurate, and I can even see why you would think I don't know what I'm talking about. The pictures they give you in the install instructions reference the older version, and the new version doesn't look the same. Now it takes two seperate pipes bolted together to create the dump tube for the wastegate. Now, since the outlet of the gate faces the ground, there is a U-shaped pipe that goes under the swaybar before connecting with the other pipe that is connected to the downpipe just after the turbo.

I think if you had seen the kit that Turbonetics sent here, you would look at it, say "oh, now I know what you're talking about, mine doesn't look like that" and then this would be a big deal.

I did try clocking the compressor housing but clocking the housing alone wouldn't fix the issue. Due to the gate's location, I can't rotate that pipe up any more than it already is, or else the gate is jammed against the unibody, which wouldn't be a good idea for longevity/durability's sake.

I'd gladly post a picture in this thread, but that wouldn't be 56K friendly, and I don't have a site to post them online. If you think a picture would help clarify what I'm talking about, I'll gladly send one.

Last edited by NateP; May 28, 2006 at 07:38 AM.
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