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Thread: Sunbeam

  1. #91
    ^TAMOR NORTH^ Graystroke's Avatar
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    so does it move under it's own power?

  2. #92
    Big Baller 85cj7's Avatar
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    I asked him that today, he said that he pushed it fast and made the mazda "zoom, zoom, zoom" noise, and that was close enough.

  3. #93
    Registered User robertf03's Avatar
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    can't sleep, so I ordered exhaust parts. I think the kia manifold just won't cut it

    from Great Plains Aircraft Supply


    flange from jgs precision


    now I just need some stuff to go in the middle. 1.375 tubing. Anyone know the cheapest place to get mandrel u bends? not as many 90's as in the gay ass model, but center dump style like that
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    Last edited by robertf03; 02-10-2009 at 05:02 AM.
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  4. #94
    What's that whine? tigweld's Avatar
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    u should put your inside 2 cylinders to the outside of the collector and your lenths would be closer

  5. #95
    Registered User robertf03's Avatar
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    I agree, that design sucked

    it'll probably be more like this, but I have to wait until I can take some measurements from the car again. I might switch the 3 to go over the 4 to make it longer, maybe do the same to #2. its pointless without measurements though.

    Where do you buy your prebent mandrel pieces?

    and how the hell do you weld the star in between the tubes? pull the gas line and purge it over the area with 4" of tungsten sticking out?
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    Last edited by robertf03; 02-10-2009 at 12:50 PM.
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  6. #96
    Dead or alive... mudtoy67's Avatar
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    I think the star is welded in before welding the tubes in the collector.
    BDR

  7. #97
    Registered User robertf03's Avatar
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    that way doesn't sound any easier. at least 1 tube is going to be a mother****er to weld
    ...

  8. #98
    Registered User uglyota's Avatar
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    maybe tri-y is passe but why do you want to do a 4-1 dump? Seems like it would be the ticket for the revs this thing will probably do and easier to weld too. Speaking of which are you talking about trying to weld only from the outside? I figured the collector would be welded from the inside with a pen-style torch.
    Quote Originally Posted by Shaggy View Post
    damnit... if everyone is leaving i want my original 15 back... i dont wanna be left with these tools

  9. #99
    Registered User robertf03's Avatar
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    I found some website where they did a dyno shootout on tri-y and 4:1 with different lengths on a miata and the 4:1 was more better

    I'm also fighting steering arm clearances with the exhaust so my options are pretty limited, the stock manifold works if you never have to turn left.
    ...

  10. #100
    Registered User uglyota's Avatar
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    as cool as it would be to build your own header, how hard would it be to convert to rack and pinion steering? And I think espearo has bought pre-mandrel bent joints before, maybe ask him where? Trick-tools' most recent email showcased some sweet header jigs
    Quote Originally Posted by Shaggy View Post
    damnit... if everyone is leaving i want my original 15 back... i dont wanna be left with these tools

  11. #101
    Registered User robertf03's Avatar
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    Other than drivetrain, I'm not changing the way the car handles. I want it to drive like an Alpine.
    ...

  12. #102
    Dead or alive... mudtoy67's Avatar
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    Quote Originally Posted by robertf03 View Post
    that way doesn't sound any easier. at least 1 tube is going to be a mother****er to weld
    Weld it from the bottom:




    Then weld your collector.
    BDR

  13. #103
    Teaching America's youth RCcola55's Avatar
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    Ryan Clarke
    (214)695-7901

  14. #104
    Registered User robertf03's Avatar
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    I thought the tubing extended past the star in most apps. guess it doesn't matter
    ...

  15. #105
    wash, rinse, repeat. sasquatch's Avatar
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