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Full-race 4-bolt downpipe tricks (or V-band?)

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Old Dec 23, 2007 | 04:46 PM
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Default Full-race 4-bolt downpipe tricks (or V-band?)

Welcoming ideas on how those of us with a Full-race tubular manifold have attached the downpipe to your turbine housing.

I have a 4-bolt turbine, so I used allen bolts and lock washers. Very hard to access the top bolt though, and the far right one's no picnic. Considering getting a bolt that's too long and welding a nut to it for the right depth -- this would space the bolt head back far enough to get some kind of wrench on it.

Also considering pulling the turbo/mani out and replacing the turbine (and downpipe flange) with a V-band. Maybe mhave the turbine housing machined for the band, or maybe get a new one (ideas on where to get one? Have looked at ATP turbo but open to other ideas).

Other approaches? Please share -- I could use some good ideas. Goal is to have this car be reliable enough to put the GF in across country with no hiccups.

Thanks,
Stanford
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Old Dec 23, 2007 | 05:10 PM
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yea that bolt is a @(&% to get to
Mine loosened up so i tightened it up with a swivel and LONG extensions
Has been ok since
Might wanna try maybe some high temp leak lock?

Marcus
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Old Dec 23, 2007 | 05:12 PM
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Also if you end up going with a V-band option let me know how you like it i might also go that route just so i wont be lazy when it comes to uninstalling it
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Old Dec 23, 2007 | 07:48 PM
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any advantage with a V-band? Is it worth all the hassle?
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Old Dec 23, 2007 | 08:29 PM
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For the Full-race manifold, I think the V-band would have one instead of 4 bolts to tighten, and that bolt should be less prone to loosening.

Top bolt on the FR manifold makes me think V-band would be my inexpensive option to retaining my sanity -- expensive option would be to go top-mount path and sell the FR manifold / downpipe.
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Old Dec 24, 2007 | 05:39 AM
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Originally Posted by Spec_Ops2087,Dec 23 2007, 11:48 PM
any advantage with a V-band? Is it worth all the hassle?
Just makes your life easier, rather then having to deal with bolts coming loose and having to reach in impossible spots to tighten one bolt all you have to worry about is your V-band.
I wanted to upgrade but i dont think Fullrace offered it i forget why.
Although i really havent had any problems with my setup i must say.
Loving my Fullrace kit


Marcus
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Old Dec 24, 2007 | 03:11 PM
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If you dont want to deal with the headaches , then go vband. Tial makes a nice s/s turbine vband housing.

I want to switch wastegates but the 4 bolt setup (plus my custom dumptube) is pretty much a whole day affair. My 4bolt setup has not backed out or leaked yet. Im using the 4 studs and nut/lock washer setup. To get to the other bolts, we remove the nuts holding the right motor mount and jack the motor up.

I still love the kit, but next time, its vband all the way
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Old Dec 25, 2007 | 12:34 PM
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OK, that's a rather excellent idea on dropping the two motor mount nuts and raising the engine. Way to go. Looks like I'll have something to "look forward to" (dread a little less, to be more precise) when I get back from Christmas. Thanks again to you guys -- really appreciate the help keeping us turbos on the road.

Whoosh,
Stanford
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Old Dec 27, 2007 | 08:55 AM
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oh btw, make sure you have stubby combination wrenches. Its very tight clearances in there.
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Old Dec 27, 2007 | 02:17 PM
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Thanks. I just picked up a "Sidewinder" ratchet and some allen sockets that I'm going to give a shot. Also picked up a couple of longer Allen bolts that I'll put a nut or two on -- idea is to screw the long allen all the way in, and then use one (or two if I double-nut) to provide the clamping -- a pseudo stud clamping setup with the convenience of an allen head to pull the stud out if needed.

FWIW, the 3" V-band housing from ATP Turbo is $390 plus ceramic coating. Based on that, I'm willing to give a few allen heads, studs, motor jacking and/or specialized tools before giving up on the 4-bolt.

Thanks again,
Stanford
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