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Thread: Racing exhaust for laker 49 OMC

  1. #11
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    Default Insides appx

    Quote Originally Posted by Fastjeff57 View Post
    What will the insides look like?

    Jeff
    Here are basics yet to be developed. Exahust will exist at the factory exist at the bottom of the block. The port will not be cut in the divider until the casting is completed.

    Tim
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  2. #12
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    Default

    I have a Nydahl one. Will try to take some pictures in next day or so

  3. #13
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    Default Fantastic!

    Thanks for the offer to send pics. Your help is greatly appreciated!

    Tim

  4. #14
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    Default

    ...
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    David



    FOR SALE: FE / SE / 850 Mod motor parts
    http://www.boatracingfacts.com/forum...od-motor-parts

  5. #15
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    Default Good stuff!

    Hi David, Thanks for posting pics of the Nydahl system. There's not much point to continue development of my pattern, except mine eliminates the boss restriction just south of the #1. Perhaps Pete has access to the patterns and can make more.
    If not, will you let me pull a mold from yours for improvement? Tim

  6. #16
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    I sold the one in the picture to Burt Hoefs.
    David



    FOR SALE: FE / SE / 850 Mod motor parts
    http://www.boatracingfacts.com/forum...od-motor-parts

  7. #17
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    them molds are long gone, i tryed to get them years ago, fire wood i was told.

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  8. #18
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    AKA ,yamaha triple style

    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  9. #19
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    I think I'm in on this after I see what my tax return says.

  10. #20
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    Have I got this right: The exhaust will exit though a hole in the botom of the box (not yet made in the above photo). I assume the usual exhaust path down the leg is also left open?


    Thanks,

    Jeff

    PS: The reason I'm so interested is that I run Merc triple power heads on Mark 55 type lower units. I recently added external reeds and larger carbs to one of them, but I'm concerned that the Mark 55 tower is way too restrictive. Going to a set up like the above would eliminate that.
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