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Thread: Exhaust jig

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  1. #1
    Join Date
    Dec 2008
    Location
    Lake Jackson, Texas
    Posts
    12

    Default Exhaust jig

    Does anyone have any ideas on how to build an exhaust jig for building racing exhaust?? Will go on mini sprints!!

    Thanks,

    Zeb

  2. #2
    Join Date
    Mar 2008
    Location
    Anchorage AK
    Posts
    344

    Default

    How many do you plan on building?


    Makes a big difference on the design of the jig.


    If just building 1-3 I would make a jig at all.


  3. #3
    Join Date
    Jan 2009
    Location
    Cleveland, TN
    Posts
    229

    Default

    1/8 in. angle is a good choice. Make your first header on the car (or at least tack it). Then, use it to make the jig. Next, take a piece of angle and use it to bolt the flange to. Off of that make a frame that you can add more pieces of angle to in some of the long straight pieces of the primary tubing. It will look crazy without a header in the jig, but they work. The size angle depends on primary size. 2 in. is a good size for most. This is a very basic description I know, but it should help.

  4. #4
    Join Date
    Dec 2005
    Location
    wisconsin
    Posts
    836

    Default

    I guess I think a little different. I would fabricate the exhaust system on the engine/car, then start doing the power and tuning development on it. Lots of cutting up and changes until it works just right for the application. When everything it the way you like, then build a jig from the prototype. Just remember to let the fixture have a little "give" as to not stress the welds durring cooling. Have at it !
    "Better Metalworking Through Research"

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  5. #5
    Join Date
    Jan 2009
    Location
    Cleveland, TN
    Posts
    229

    Default

    Aero, I thought about all of that, but He only asked how to make a jig. He may have a proven header design, but just wants to make some extras.

  6. #6
    Join Date
    Dec 2005
    Location
    wisconsin
    Posts
    836

    Default

    Quote Originally Posted by wrenchnride247 View Post
    Aero, I thought about all of that, but He only asked how to make a jig. He may have a proven header design, but just wants to make some extras.
    I dunno a guy that has already designed and fabricated his exhaust system probably doesnt need to ask how to make a jig for it
    "Better Metalworking Through Research"

    Miller Dynasty 300DX
    Miller Dynasty 200DX
    Miller Spectrum 375 extreme
    Miller Millermatic Passport

    Miller Spot Welder
    Motor-Guard stud welder

    Smith, Meco, Oxweld , Cronatron, Harris, Victor, National, Prest-o-weld, Prest-o-lite, Marquette, Century Aircraft, Craftsman, Goss, Uniweld, Purox, Linde, Eutectic, and Dillon welding torches from 1909 to Present. (58 total)

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