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Thread: 56er six pack build

  1. #31
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    so gots the port height locked in, and take it over to the 56er, from the bottom of the port, ( not goin to lower the port at any time ) set the lower finger of the caliper on the bottom of the port (sill) and make a scribe mark with the the other finger of the caliper
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    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  2. #32
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    this is what i do hear on this, works on the 19-s front half as well............
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    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  3. #33
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    same deal on the intake side, i'll get some numbers so yous can measure out a port map, be lookin to send it out for machined finger ports,
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    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  4. #34
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    Hi Fred
    If you are copying the port map are you going to use the long rods as well?

  5. #35
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    minimum run of pistons is 2500 bucks, that gets 4 sets, not seein it, 56er rods are .100 longer stock, than the 49er or so i was told (i'll check that my self) 56er seems to carry 10hp more cuzz of bore and and rod over the 49er. if i could buy three trick pistons i would......... gots sets of mod50 rods on hand.

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

  6. #36
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    Quote Originally Posted by Fast Fred View Post
    minimum run of pistons is 2500 bucks, that gets 4 sets, not seein it, 56er rods are .100 longer stock, than the 49er or so i was told (i'll check that my self) 56er seems to carry 10hp more cuzz of bore and and rod over the 49er. if i could buy three trick pistons i would......... gots sets of mod50 rods on hand.
    So your building it with 56 rods and 56 style pistons?
    I dont think the pistons are that expensive Phil McDaniel does 100 and then on sells them for 100 each I seem to remember ( 49 ones for the long rod that is)
    Without the long rod your porting will be advanced compared to the Mod 50

  7. #37
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    the gain in mechanical leverage is not enuff to out way the cost, it's minimal, been a wiseco dealer for about 25years now. there is not a big dif' in the mod 50 rod over the 56er
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    Part one of "Secrets of the OMC Mod 50" : http://www.boatracingfacts.com/forums/showthread.php?t=2052

  8. #38
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    if there is a new set of long rod 56er +.020 or +.030 over pistons would be interested ..............

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

  9. #39
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    so, some notes, the long rod with the trick piston gives the power head a mechanical advantage, over the stock set up. the piston crown vary much does the same thing at the same times give or take no mater which set up. if i was runnin in a class and could use them, i'd be runnin them. i run a set of McDaniels top pin Mod50 pistons now.

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

  10. #40
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    some notes on temp, no thermo, no springs, no guts at all, yup, sounds wrong, "thay" the factory, wanted the power head to run at 145deg F for regular racin, and 180deg F for kilo, temp gauge is a good idea, maybe a choker in the water exit toob to keep the temp up, if she is cold, she Bogs................
    notes i've picked up along the way, did the facyory say them things, ????? don't know, sounds about right.

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

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