Making custom turbo crosspipe

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  • grandprixgtp_91
    • Nov 2003
    • 758

    #1

    Making custom turbo crosspipe

    Hi,
    I am making a custom crosspipe for my turbo setup on my 3.4 TDC ,

    what i did was take my spare crosspipe and cut the ends off of it to use for the flanges,

    i also measured it up and found that the pipe is 2.25" inches wide OD and that the pipe is .060" thick .

    now i know i cant use bends from the local auto parts store to make this up because the pipe is to thin, so i need thickwall pipe.

    Question is, where do i buy it from?

    ive been to every possible place that sells exhaust and whatnot, and nobody knows where to get it.

    does anyone know of a place online that sells it?

    also what is .060" in gauge, so if i need a gauge size i know what to order.

    Thanks!

    Jake
    GM Goodwrench Tech - GM Certified

    1991 Pontiac Grand Prix GTP - 3.4L DOHC , 5 Speed Manual Transmission , Turbonetics 62mm turbo, Turbonectics Evolution Wastegate , Turbonetics Raptor BOV , Large Front Mount Intercooler , AEM Methanol Injection , Car is running at 11PSI currently with methanol injection.

    Runs 13.4 In the 1/4 with a 3 second 60 foot
  • ForcedFirebird
    Live life 3.7mi at a time
    • Jan 2007
    • 4555

    #2
    IIRC .060" is 14ga. You can get it from Stan's Headers online, that's what I used on Loner's turbo kit in Dec '07 and haven't had any problems so far.
    Links:
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    • grandprixgtp_91
      • Nov 2003
      • 758

      #3
      alright thanks!

      you dont happen to know if 16 gauge will work ? i can easily get my hands on that i just found out.

      thanks

      Jake
      GM Goodwrench Tech - GM Certified

      1991 Pontiac Grand Prix GTP - 3.4L DOHC , 5 Speed Manual Transmission , Turbonetics 62mm turbo, Turbonectics Evolution Wastegate , Turbonetics Raptor BOV , Large Front Mount Intercooler , AEM Methanol Injection , Car is running at 11PSI currently with methanol injection.

      Runs 13.4 In the 1/4 with a 3 second 60 foot

      Comment

      • ForcedFirebird
        Live life 3.7mi at a time
        • Jan 2007
        • 4555

        #4
        16ga is really thin, you can try it, but don't expect it to last near as long. 16 and 18 are thinner and made for N/A apps.
        Links:
        WOT-Tech.com
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        • loner666
          • Oct 2006
          • 435

          #5
          Yea. Mine was made with all 14g and so far so issues, even WITHOUT a crossover brace. But then again I do have a leak in the back somewhere but I havent checked to see where its coming from exactly
          1994 Chevy Corsica. Parted out. Just a rotting shell now
          Best 1/4mile ET - 12.9
          Best 1/4mile MPH - 111
          1997 Ford Ranger Splash
          Daily Driver

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          • ForcedFirebird
            Live life 3.7mi at a time
            • Jan 2007
            • 4555

            #6
            Originally posted by loner666 View Post
            Yea. Mine was made with all 14g and so far so issues, even WITHOUT a crossover brace. But then again I do have a leak in the back somewhere but I havent checked to see where its coming from exactly

            That's new !?!? did you look at the header/xover flange again? I know last time either Bo forgot to tighten one of the bolts or it worked loose.
            Links:
            WOT-Tech.com
            FaceBook
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            • loner666
              • Oct 2006
              • 435

              #7
              I have yet to check the head flanges since I installed the first replacement trans. lol so that could be it, or the fact that I made cheap gaskets for the crossoever flanges and the rear one torn/blew out. Its not a bad leak but I hear something back there.
              1994 Chevy Corsica. Parted out. Just a rotting shell now
              Best 1/4mile ET - 12.9
              Best 1/4mile MPH - 111
              1997 Ford Ranger Splash
              Daily Driver

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              • RedZMonte
                • Feb 2004
                • 1378

                #8
                you can have a exhaust shop bend it up. they have piping in stock. Or buy premade mandrel bends. i would also do aluminized or stainless. mild steel will rust pretty fast.

                Search for "Mandrel J" or "Mandrel U"

                http://www.jegs.com/webapp/wcs/store...Term=mandrel+J



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                Shane "RedZMonte"
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