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  1. #11
    Join Date
    Nov 2003
    Posts
    3,215

    Question

    Machine polarity settings??
    DCEN
    Electrode Negative for Flux Core Wire ??

    Input power, 120 or 240vac ???
    NO Extension cords??

    Have you consulted the settings chart in section 5-3 of the manual for fluxcore wire??

    http://www.millerwelds.com/om/o239988j_mil.pdf

    Again... I would urge you to practice on scrap FIRST..
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam..

  2. #12
    Join Date
    Feb 2012
    Location
    Puerto Rico
    Posts
    26

    Default

    I set the volts around 6 and 7 and wire speed to 50 and yes it is DCEN. I do have to use a 50fts extension cord 0f super service 10/3 240v.

  3. #13
    Join Date
    Feb 2012
    Location
    Puerto Rico
    Posts
    26

    Default

    The piece does get realy hot, but I dont see a constat pudle.

  4. #14
    Join Date
    Feb 2012
    Location
    Puerto Rico
    Posts
    26

    Default

    The roll is a .035 308l fco made by htp

  5. #15
    Join Date
    Nov 2003
    Posts
    3,215

    Default

    Header design & fabrication at best is a complicated, difficult process....

    Making a turbo header is an order of magnitude more ambitious an undertaking...

    Here is a great source of information and supplies.. Stainless Headers Mfg

    http://www.stainlessheaders.com/index.aspx

    Their fabrication videos are truly outstanding.. and FREE...

    http://www.stainlessheaders.com/headerfabrication
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam..

  6. #16
    Join Date
    Feb 2012
    Location
    Puerto Rico
    Posts
    26

    Default

    Thanks a lot!

  7. #17
    Join Date
    Nov 2003
    Posts
    3,215

    Default

    Turbo headers are especially prone to failure due to expansion and contraction stresses brought on by extreme heating and cooling cycles they are exposed to... elevated pressure ant temps that can be extreme in a turbo environment.... cracking and joint failure can happen VERY quickly...

    this happens even with "Big Name" factory installations....

    just ask any Porsche 951 Turbo owner...

    Careful design and the incorporation of slip joints will help to insure longer life and service... here is a good example..

    http://www.stainlessheaders.com/ecotec_header

    Here are a bunch of close up pics showing construction details..

    http://www.cobaltss.net/forums/2-0l-...market-267479/

    as far as using MIG for this project?? I personall use TIG for this type of work...

    but there is no reason that a careful, skilled MIG operator could not achieve decent results..
    Last edited by H80N; 07-14-2013 at 09:23 AM.
    .

    *******************************************
    The more you know, The better you know, How little you know......

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

    My Blue Stuff:
    Dynasty 350DX Tigrunner
    Dynasty 200DX
    Millermatic 350P w/25ft Alumapro & 30A
    Millermatic 200

    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam..

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