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  1. #1
    Join Date
    Nov 2006
    Location
    Auckland, New Zealand
    Posts
    26

    Default Welding supercharger cases together

    I've been asked to weld two 6V71 supercharger cases together (end to end) to efectively get a 12V71. The owner of them says he can couple the rotors and I only have to join the cases. My main concern would be warpage causing misalignment, which would pretty much stuff the blowers. I know I can bolt them to heavy plate while they're being welded but still have concerns. Has anyone ever done this, or seen or heard of it being done sucessfully? Do you think dowelling and bolting the cases together would be better?

  2. #2
    Join Date
    Apr 2008
    Location
    pine city mn.
    Posts
    20

    Default

    dont know if this helps or not. but we weld snowmobile crankcases together. you can take a 2 cylinder engine. cut a half a cylinder off of each engine and weld them together to get a big 3 cylinder. use a steel plate on the top and bottom. tack around and then jump around and weld. what they do is weld a bead on this side then on the other side and get it all welded.

    dont know how much help that is but never have to many problems with cranks.

    also if you do a true job once he has it bolted down to the engine it should help eliminate twist.

    he putting this on an allison engine?

  3. #3
    Join Date
    Nov 2006
    Location
    Auckland, New Zealand
    Posts
    26

    Default

    An Allison would be cool, but no, its a 460 Ford. Heres a pik of the project. As a secondary thought, do people repair cracked blower housings, or are they junk when cracked?
    Attached Images Attached Images

  4. #4
    Join Date
    May 2007
    Posts
    224

    Default

    DANG!!!
    Warning to young ladies:
    If you wear loose clothes, beware of the machinery. If you wear tight clothes, beware of the machinist.

  5. #5
    Join Date
    Mar 2007
    Location
    Fraser Valley, BC
    Posts
    593

    Default

    That is one crazy *ss project!

    Like mentioned before, alignment would be very critical here. I would discuss this thorougly with the person you are doing the work for and make sure that they think it will work before you start. You may also want to get some sort of signed document saying you are not liable for parts costs if things don't work out. Unfortuanetely in todays world one must always look out for himself.

    If you do go for it, and things work out, make sure you post lots of pictures.
    Dynasty 200DX, first generation
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    Whole bunch of hand/air tools.
    and a wish list a mile long

  6. #6
    Join Date
    May 2007
    Location
    Grande Prairie, Alberta Canada
    Posts
    729

    Default

    Not INTENDING to be insulting to your associate, but HOW did he come up with that idea for an induction system.....Drinking Bong Water? or Huffing Paint Fumes?

    Why?......Why?.......Why?.......
    Later,
    Jason

    Professional Spark Generator by Trade.

  7. #7
    Join Date
    Sep 2003
    Location
    Rhode Island
    Posts
    33

    Default

    Quote Originally Posted by kelzweld View Post
    An Allison would be cool, but no, its a 460 Ford. Heres a pik of the project. As a secondary thought, do people repair cracked blower housings, or are they junk when cracked?
    Sick car! I have always wanted to buying one of those. How the **** do you see where you are going?
    Brian C.
    Turbobrian Fabrication LLc.
    Miller D165
    Miller 140
    Miller Digital Elite

  8. #8
    Join Date
    May 2008
    Location
    Belle Plaine Iowa
    Posts
    270

    Default

    "ok. maybe I'm not picturing this clearly in my head, but if you mount the rear blower backwards, won't it be spinning the wrong way, 'blowing' up through the carbs?"

    That would depend on how you set up the drive to the driven. Both sets of rotors would have to go the same way. As a side note, this is an old thread and I dont remember why I said "backwards". Sorry to confuse.
    Who do you call when the lawmakers ignore the law?

    Miller AC/DC Thunderbolt 225
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    Old cutting torch on LPG

  9. #9
    Join Date
    Nov 2006
    Location
    Auckland, New Zealand
    Posts
    26

    Default

    Quote Originally Posted by Flyingpig View Post
    " As a side note, this is an old thread and I dont remember why I said "backwards". Sorry to confuse.
    Yes, an old thread, and the guy wanting it done was a time wasting dreamer. I'm sure all of you who work in this industry have come across them. As a side note, his reasoning for wanting to do the two superchargers was not so much a performance thing, as a look at me, I'm different thing.

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