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  #1  
Old 06-27-2013, 09:02 PM
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solid up pipe problems

Has anyone had problems with their solid Y pipes? Cracking or problems with expansion and contraction? I can't see expansion being a big problem but I'm just wondering for a home project
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Old 06-27-2013, 10:09 PM
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I believe the problem is expansion between the motor and turbo and that's why the bellow pipes are there... Why do you want to eliminate them? If you completely eliminate them I would weld slip joints like sinister does so you can still have expansion and contraction. I opted for the bellows when I replaced mine... I'm sure someone will chime in shortly with their views on solid up pipes.

Last edited by RollinEarly99; 06-27-2013 at 11:28 PM.
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Old 06-27-2013, 11:10 PM
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So sinisters up pipes only truly seal when they're hot? I cant picture how else they would... as for vibration, both the manifolds and the turbo are solid mounted so I can't see vibration being a major issue between them. When I replaced my y pipe, the short side was cracked and torn open, right at the edge of the flex joint. In my mind, a simple solution to an apparent common problem would be to cut the flex joint out and weld in a short piece of pipe. Couldn't cost too much, might even be another cheap DIY fix that some owners could do
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Old 06-27-2013, 11:26 PM
RollinEarly05...now


 

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The exhaust gets so hot it needs to expand and contract or you will crack the y pipe eventually. Sinister y pipes are designed to slide in and out to compensate for this. Here is a link with pics of it

Sinister Diesel 6.0L Powerstroke Y-Pipes
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Old 06-27-2013, 11:30 PM
RollinEarly05...now


 

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Quote:
Originally Posted by harrisford View Post
So sinisters up pipes only truly seal when they're hot? I cant picture how else they would... as for vibration, both the manifolds and the turbo are solid mounted so I can't see vibration being a major issue between them. When I replaced my y pipe, the short side was cracked and torn open, right at the edge of the flex joint. In my mind, a simple solution to an apparent common problem would be to cut the flex joint out and weld in a short piece of pipe. Couldn't cost too much, might even be another cheap DIY fix that some owners could do
I edited my first post... Vibration I was thinking of expansion like I stated later on in the post. My bad
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  #6  
Old 06-28-2013, 04:30 AM
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Quote:
Originally Posted by harrisford View Post
So sinisters up pipes only truly seal when they're hot? I cant picture how else they would... as for vibration, both the manifolds and the turbo are solid mounted so I can't see vibration being a major issue between them. When I replaced my y pipe, the short side was cracked and torn open, right at the edge of the flex joint. In my mind, a simple solution to an apparent common problem would be to cut the flex joint out and weld in a short piece of pipe. Couldn't cost too much, might even be another cheap DIY fix that some owners could do

If you can do that then why not get stainless flex sections and weld them in and do the job right?
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  #7  
Old 06-28-2013, 06:39 AM
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Originally Posted by PGreenSVT View Post
If you can do that then why not get stainless flex sections and weld them in and do the job right?
I agree 100%. Stainless interlock flex sections from vibrant are scheap, like under $30 and good for 90 psi of back pressure.
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Old 06-28-2013, 06:49 AM
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Well they are like $50 for two from Summit Racing.

I agree though. That's all I use now.
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Old 06-28-2013, 06:52 AM
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Originally Posted by windrunner408 View Post
Well they are like $50 for two from Summit Racing.

I agree though. That's all I use now.
So under $30 a piece

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  #10  
Old 06-28-2013, 09:11 AM
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Vibrant Performance TurboFlex Couplings 60604 - Free Shipping on Orders Over $99 at Summit Racing

These little puppies?
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