Anyone else ever have this problem with TTI pipes?

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  1. beanhead

    beanhead Well-Known Member

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    Cracking. Starting right at the H-pipe crossover welds...

    Fiddlesticks!
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    Poopdooty!
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    Mutha*&@*#$!
    20200320_194804.jpg

    Only have about 3000 miles on them. Those are their factory-welded joints. The exhaust is hung with flexible straps just behind the mufflers, and rubber isolators near the exits, so the system does have some give..
     
  2. tnfastback

    tnfastback FBBO Gold Member FBBO Gold Member

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    You have too much H.P. :lol:
     
  3. beanhead

    beanhead Well-Known Member

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    Haha I wish!

    I should've added, I have the engine on mity-mounts and they're still in great shape. It doesn't move much at all when ya throttle it..trans mount looks good too.
     
  4. tnfastback

    tnfastback FBBO Gold Member FBBO Gold Member

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    That really is strange that they are splitting like that.
     
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    • steve340

      steve340 Well-Known Member

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      Are they stainless or mild steel?
       
    • dadsbee

      dadsbee FBBO Gold Member FBBO Gold Member

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      Too much heat in their weld and destroyed the properties of the original pipe material.
       
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      • beanhead

        beanhead Well-Known Member

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        Mild steel.

        I think so too.
         
      • beanhead

        beanhead Well-Known Member

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        Yep time to patch in a new H-pipe section. Oh joy!
         
      • dadsbee

        dadsbee FBBO Gold Member FBBO Gold Member

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        I'm no expert welder, but I get it right when it counts... nothing worse than silence on the nose of an airplane.. lol
        motormountsapril2014 182.JPG
         
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        • beanhead

          beanhead Well-Known Member

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          Yes I'm an average welder, at best...and my ugly ones are holding up just fine!
           
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          • dadsbee

            dadsbee FBBO Gold Member FBBO Gold Member

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            Just because they're pretty doesn't mean their good! Doesn't just apply to women... !!
             
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            • beanhead

              beanhead Well-Known Member

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              :lol:
               
            • moparedtn

              moparedtn Ed on the Ridge FBBO Gold Member

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              Could you not just weld them up and they'd hold?
              Forgive me, not a welder....
               
            • cryplydog

              cryplydog FBBO Gold Member FBBO Gold Member

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              That joint definitely has torsional stress, maybe need to put a couple more hangers on it to support that area?
               
            • BSB67

              BSB67 FBBO Gold Member FBBO Gold Member

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              How do you see stress? And why would it be torsional stress?
               
            • dvw

              dvw Well-Known Member

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              Do you have the H section clamped? It looks like the right and left pipes are being pulled outward. I never clamped the H section on mine. They've been on there 16 years. Call TTI and see what thy say. At worst its an easy fix. Drill holes at the end of the cracks and weld them up.
              Doug
               
            • VANDAN

              VANDAN FBBO Gold Member FBBO Gold Member

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              I would contact TTI. Let them know, and send the pics. I'm sure they would want to know about it, and they would want to correct any upcoming problems with their products. You may just receive a package after that ?
               
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              • 440Coronet500

                440Coronet500 Well-Known Member

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                Looks to be a fatigue failure, most likely failure started at the heat affected zone of the weld. Impossible to say for sure without a cut/polished weld section analysis. 440'
                 
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                • beanhead

                  beanhead Well-Known Member

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                  Thanks guys, I plan to give them a call...it is a relatively easy fix for sure, more just the "ugh" of having to crawl under there and do it. When I put the pipes in, I did as I always do with pre-made exhaust and fitted everything together nice, used their clamps to hold it in place and then welded all the joints. It's always worked well. I'm going to slowly loosen the hangers and see if there is any weird stress, maybe I have it pushed up towards the floor too much at the back? I suppose that could put extra pressure on that 'H' area as the cracks do start on the bottom on both sides. I still don't believe they should be cracking like that as I installed this setup the same as others I've done that never had an issue..
                   
                • snakeoil24

                  snakeoil24 FBBO Gold Member FBBO Gold Member

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                  you bet this is fatigue failure too much heat maybe or possibly bad cut made in pipe.
                   
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