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Thread: over water exhaust?

  1. #1
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    Default over water exhaust?

    following on from my modding a 40 twin, i would like to hear my motor scream so i was thinking about modding the lower leg to make it an over water exhaust, would there be any reasons not to?

  2. #2
    FFX-61
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    most drill the foot, if you drill the mid you should run a weld around the hole so it won't crack.

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

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    eh? any pictures for referance? ( and some details on your damper set up! tried to pm you but your inbox is full!!)

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    Sam Cullis Mark75H's Avatar
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    Fred's advice is good. Cracks are possible, more than a few people have lost nice props and gearcases with cool sounding mids
    Since 1925, about 150 different racing outboards have been made.


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    what you run for power? the dampener is straight forward, bolts to an ear added to the power head bolts, a bracket with an upright mount that pivots so she will tilt and not bind, bolted to the transom. works on anything

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

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    i'm running a yam/mariner 40 twin on a zapcat like yours!! she gets a bit tank slappy in the chop....is that a pro-comp damper on yours? i have a few small/med shock absorbers here i'll head in the workshop and have alook methinks!!

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    i'd drill the foot on that one, there is a rib inside the foot, if you cut it down the exhaust will empty out the cavplate with no out side cuts, looks stock, sounds kick a$$, a shock is not goin to work make sure it's a Dampener , it kills all the pos neg input from the prop. how do you drive left handed ( reg) right handed ( not reg)

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

  8. #8
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    oh i don't run a zapcat, i at one time imported hulls, but found that you can not trust people to honor there word from so far away. i only sold zapcats cuzz it pissed them off
    that red one went to Cal. they are ok to buy one hull from, but i would not set up shop and toss a hundred G's, into boat stock with people that would sell a hull directly to the guy across the street form my shop on the same week my hulls showed up. some things are hard learned in life. the zapcat factory is cool, there built in distributors make them a bad investment passed one hull.

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

  9. #9
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    this is the hull i'm runnin now,
    Attached Images Attached Images  

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

  10. #10
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    zapcat is a solid hull, no confusion there

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

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