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  1. #21
    Platinum Member Platinum Member cougarman's Avatar
    My Boats:
    1986 Cougar US-1 46'
    Join Date
    Jan 2002

    Re: Swept back Skegs

    Quote Originally Posted by saxman
    Anyone know anything about these Weismann 6's? Saw them on a boat in the classifieds.
    Just going off memory here, so my comments may differ some.

    I'm wondering if that's an older Wiesmann conversion, cause I thought Wiesmann liked to weld the back if the skeg to carry to the prop. And I see those are not carried back. Other than that I feel Wiesmann has the best conversion out there.

    Pat Wiesmann is the originator of the drysump, it worked so well he was banned after that. So He sold the plans to Mercury and now its there for every one to use.

    Mercury didn't use all of Pat's design for some reason though.
    Seems like Mercury uses 1 or 2 less nozzles for spraying the gears. And also Mercury doesn't use the scavenger tube in the lower case. So Mercury still has 2 gallons of oil in there, so it's not a total drysump like Pat designed. But still works well.

    Only other thing I was aware of was, Pat's pump worked forward and reverse. Mercury's only worked in forward, not sure if that has changed since then.

    Sadly Pat is not doing conversions anymore, so he can focus on his own work. He sold his tools to Vern Gilbert, which also took over Gentry Turbo's after Tom Gentry passed on.

    Vern also does great work and he and Pat are business neighbors per say. They have worked on various projects together.

    Other thing I don't remember Pat or Vern ever talking about is cutting off that rear Cavitation plate. So that has my curisity on the effects it has.

    And I'm not totally positive, but I thought Vern doesn't like to weld the skeg as the picture show's. But like anybody I know they have improved there product over time too.

    Hope this helps
    Last edited by cougarman; 10-22-2006 at 10:15 AM.
    "If some is good, more is better.
    And to much is just enough."
    ----Carroll Shelby

  2. #22
    Registered racesdad's Avatar
    My Boats:
    07 368 SKATER and shes bad
    Join Date
    Mar 2002
    racing capitol of the world

    Re: Swept back Skegs

    welding weekens the skeg area. ask motley crew what happens

  3. #23
    Racer Racer Ryan Beckley's Avatar
    My Boats:
    1987 24 Skater, 2006 30 Skater
    Join Date
    Oct 2000
    Sarasota, Florida, USA

    Re: Swept back Skegs

    Colabella Performance 407-498-0094 can do the conversion for you and can also handle any type of drive work you need.

  4. #24
    Join Date
    Feb 2001
    houston tx

    Re: Swept back Skegs

    X lake is a great idea, that way you can try lots of props before you buy. Keeps you from having to buy alot of props.

    Not sure if I had that much power and not racing that I would really worry about the mph, just the handling. Picking a good all around prop will be hard. Some will be good for rough water and some for smooth. Some will lift the bow some will not. Its not that important if your not racing, cause if its rough you dont have to go "play". But when your racing your going doesnt matter how rough it is.

    The herring props are tons better than mercs. With the herrings all the weird vibrations you fell will go away. But they cost alot of $$ and are hard to get.

    Are you taking the boat to key west ?


  5. #25
    Registered Platinum Member
    Join Date
    Jul 2004
    atlantic city, NJ

    Re: Swept back Skegs

    Quote Originally Posted by KNOT-RIGHT
    Well maybe you should get your AZZ up here and help me throttle this beast. Then if ya give me a seditive I will
    throttle yours.

    Are ya drives nearby post the measurement.
    Nah...not here....seriously need to collect props...then resell them....or if you can get her down there to lake x...use all theirs then buy the ones that work....but the ocean is way different..I have not got to the dial part yet..everything is tuned to the max.....tuned I said

  6. #26
    Registered KNOT-RIGHT's Avatar
    My Boats:
    Turbine 46 Skater
    Join Date
    Dec 2002

    Re: Swept back Skegs

    The old style skegs measure 12 inches from prop
    centerline to bottom of skeg.

    Anyone got a swept back they can measure?

  7. #27 Gold Member shifter's Avatar
    Join Date
    Dec 2001
    newport beach,ca

    Re: Swept back Skegs

    The skeg length is the same.

    When you weld the housing it changes shape of the housing dramatically. It also de-heatreats the housing. The housing deforms out of round up to .06 of an inch and more. We went through a lot of work to make the drives run right after they were welded.

    The instability comes from the diamond shape. The drives pictured on the vee were race drives. We clipped the cav plates to save the 15 lbs each. The skegs were cut on the thickest part to make it a full wedge design without welding. The leading edge was also changed. More like the #4 and 5 drive.

    Try different wheels.

    pat W
    Unique Drivetrain Solutions for High Performance Vehicles
    2007 US1 National Champion SuperCat/ 2007 World Champion SuperCat / 2008 P1 Supersport World Champion / 2011 World champion Supercat

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