Thread: Fast Fred's OMC Mod 50 secrets Thread #2

  1. #181
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    Default straight intake??

    haa fred what advantage is the straight intake over the curved/ie stock angled intakehp or???... especially on the smaller v-rude tripple....

  2. #182
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    Looking at the previous photos there's 2 version of the twin barrel front half
    a straight and a slightly angled one with the shift shaft cross shaft?
    I also wonder how a custom straight in using the original 1 1/2 single barrel carbs and suitable reeds would work?

  3. #183
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    the reed block is the limiting Factor, the bigger or more reeds you have, the more volume you can flow, more volume = more thermo energy = more power.

    air don't like to turn, it will over run the turn and slow down.

    now that i'm at this point, i'll build the Straight In Power head and put it on the Stinger mid. the factory never offered said unit, only the 19s power head had a
    FT model.

    only scorched one set of piston to get this far. need a set of +.060

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

  4. #184
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    Quote Originally Posted by Fast Fred View Post
    the reed block is the limiting Factor, the bigger or more reeds you have, the more volume you can flow, more volume = more thermo energy = more power.

    air don't like to turn, it will over run the turn and slow down.

    now that i'm at this point, i'll build the Straight In Power head and put it on the Stinger mid. the factory never offered said unit, only the 19s power head had a
    FT model.

    only scorched one set of piston to get this far. need a set of +.060
    Is there no issue with air speed when you make it large and it slows down or does it?

  5. #185
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    would have to say no issue with air speed, lookin from hear.

    75man, 38's low speed, 40 mains, she ran fat, made black soot on the cav plate ,

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

  6. #186
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    Fred
    How do you think a straight in with the original 1 1\2 75hp carbs would work?

  7. #187
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    think low end would be killer, maybe, but thats all i would think.

    thanks 75man,

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

  8. #188
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    I would have thought you would get a better top end due to less restiction?

  9. #189
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    Default Power all over

    For Powerabout et. al.

    Is this what you were thinking of?

    Tim
    Attached Images Attached Images  

  10. #190
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    exactly....
    Are they std 75 carbs?
    How did that configuration perform?

    Many thanks for the photo
    I think BRF needs to start a 'hall of fame' for your creations

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