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Old 08-25-2002, 01:57 PM   #1
treybomb
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Default Turbo Support Bracket

For most, removal/adjustment of the bracket that locates the turbo prevents the lower uppipe flange from being pulled apart and causing leaks.

I have two questions:

... regarding removal -

Are the uppipe and downpipe sufficient to secure the turbo? Seems to me that might be asking a little much of the downpipe transmission-bracket; especially on bumpy roads and rough driving. Any comments from those who have removed the bracket altogether?

... regarding adjustment -

How did you change the fitment of the bracket? Washers? How many and where did you put them? Did you drill new ones or widen the existing holes in the bracket? Any options for a more "flexible" connection? Some type of high temperature rubber or something that would allow for the differences in positioning due to temperature? Maybe just a oval-ed hole in the bracket and torque it down loosely so it can move around a little if it needs?

I'm just looking for some hints from people who have tried or at least thought about doing this in the past.

As of now, my plan is to leave the bracket disconnected from the block and torque down the uppipe and downpipe to find out where the bracket "wants" to be. Then I guess put in the appropriate number of washers (where?) and tighten everything down.

Regardless of how well I guesstimate adjustment though, there is always going to be SOME force on the lower uppipe flange caused by the forces exerted upwards on the turbo by the bracket.

Think it would be better to just leave the bracket off altogether?

Thanks!

- Trevor
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Old 08-25-2002, 08:28 PM   #2
treybomb
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Old 08-25-2002, 11:10 PM   #3
Tuning Factory Inc.
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I leave them off, they often cause more problems and never have I had problems with support, the turbo isn't that heavy at all.
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Old 08-26-2002, 12:47 AM   #4
treybomb
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I haven't had a chance to take it off completely. Anyone have a guess at how much the turbo weighs?

The extra weight downward through the uppipe might pull on the manifold-block joint, but I guess since most aftermarket uppipes are alot lighter than the stock one, the overall weight difference isn't much.

What about the weight difference between the stock dp and the turboxs dp? (or any other aftermarket dp for that matter) Mine's still in the mail.

- Trevor
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Old 08-26-2002, 08:56 AM   #5
Mike Kress
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I just replaced Ultimates up-pipe with Shives and left the big turbo bracket off and used just the small one and shimed under it. It went together perfect. I tried 3 or 4 times to get the Ultimate pipe not to leak at the bottom flange, but after a few weeks it would start again. I think if I would have left the turbo brackets off or shimmed them it would have worked. With every thing bolted down, including both turbo brackets, I could unbolt the bottom flange and it would spring apart a 1/4 inch. I wished I would have tried to leave the brackets off the Ultimate pipe, but I'm not putting it back on to try it. I think people are right about the tension on the turbo brackets because in my case they made a big difference. I didn't change the small bracket, tightened it to the head first and then found the right thickness of a washer to shim under it on the turbo side. Mike.
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Old 08-26-2002, 11:37 AM   #6
treybomb
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The bracket (on the turbo side) gets torqued down under the nuts that secure the uppipe. So how did you "find the right thickness" of shim? Seems you'd have to torque everything down with the brackets removed to find where the brackets "want" to go. Did you just kinda hold it in place over the torqued uppipe nuts and guestimate how thick of a shim you needed?

Thanks,

Trevor
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Old 08-26-2002, 11:50 AM   #7
Gaspipe
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Trey:

When I decided to shim the brackets, I assembled everything but removed the two studs that held the brackets to the flange. I then measured the gap created when everything was retorqued. I made two spacers that were 4.5mm thick. I welded those to the brackets.

That was nearly 4,000 miles ago, and I have had no further leak.

If it comes up again, I may just nix the brackets and go "God" style.
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Old 08-26-2002, 12:31 PM   #8
cwb124
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I'm a little confused when you guys say turbo bracket. Can someone shed some light on where this is located. I currently have a big leak where my TurboXS uppipe and manifold mate up. I can't get those 2 flanges to mate up properly, a leak occurs on the side of the flange that is facing the front/passenger side of the car.

Some people have suggested that I loosen the turbo bracket but I'm not sure what they're talking about. I loosened all 5 nuts at the top flange of the uppipe. Are any of these bolts attached to the turbo bracket? If not, where are the nuts to loosen the bracket located? Thanks a lot for any help,

-confused
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Old 08-26-2002, 02:25 PM   #9
fueledbymetal
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Quote:
Originally posted by cwb124

I loosened all 5 nuts at the top flange of the uppipe. Are any of these bolts attached to the turbo bracket? -confused
That's the right area. The brackets would be connected to two of those bolts on the front side of the turbo. Follow them up to the block and loosen them there. You reach them from the top of the engine bay, although clearance is tight. When reinstalling your up-pipe, tighten the bracket-to-block bolts last.
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Old 08-29-2002, 04:43 PM   #10
treybomb
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Default

Quote:
Are the uppipe and downpipe sufficient to secure the turbo? Seems to me that might be asking a little much of the downpipe transmission-bracket; especially on bumpy roads and rough driving. Any comments from those who have removed the bracket altogether?
TurboXS Super-Stealth Turbo-back came in today. I guess I never noticed before, but the TXS downpipe has no transmission-bracket. So the weight of the downpipe and the upward force it would exert to support the turbo would be put completely on the support bracket at the lower downpipe flange.

Quote:
I leave them (referring to the turbo support brackets) off, they often cause more problems and never have I had problems with support, the turbo isn't that heavy at all.
"god," I'm assuming you're using your godspeed downpipe. Does it have a transmission support bracket? Or are you confident of it supporting the turbo even without this bracket?

Thanks,

Trevor
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