32 pacemaker

Discussion in 'Boat Design' started by tom4660, May 25, 2002.

  1. tom4660
    Joined: May 2002
    Posts: 12
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    Location: New York

    tom4660 Junior Member

    I WAS OFFERED A 1975 PACEMAKER CHEAP,I HAVE BIG PLANS BUT BEFORE I START DOES ANYONE KNOW IF THE HULL USES CORE MATERIAL(BALSA).ALSO DOES ANYONE KNOW THE WEIGHT.
     
    tom4660, May 25, 2002
    #1
  2. Guest

    Guest Guest

    I don't think so. Make sure you check the transom for rot - a lot of Pacemakers have rot problems I believe.

    Cracking, crazing, or blistering?

    Any chance you can have a look by removing a thru-hull or exhaust fitting and also where drain holes are bored in stringers?
     
    Guest, May 26, 2002
    #2
  3. tom4660
    Joined: May 2002
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    Location: New York

    tom4660 Junior Member

    I picked up the hull and decided to start pullingout the power,Now i want to know if 175 hp 6.9 liter internationals will be enough power.The hull origionaly had 220hp gas motors.I estimate that the boat is about 12000lbs.
     
    tom4660, May 28, 2002
    #3
  4. Nomad
    Joined: Feb 2002
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    Location: Florida

    Nomad Senior Member

    Personally I would put in more power first off the engines will work less thus saving feul and saving engine life
     
    Nomad, May 29, 2002
    #4
  5. tom4660
    Joined: May 2002
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    Location: New York

    tom4660 Junior Member

    power

    i obtained two 6.5 L turbos good for 240 hp . is this enough ? The trans ratios are 1.9 to 1 how do I estimate speed
     
    tom4660, Jun 4, 2002
    #5
  6. Willallison
    Joined: Oct 2001
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    Location: Australia

    Willallison Senior Member

    see http://boatdesign.net/forums/showthread.php?s=&threadid=615
    To get an estimate of the speed with any degree of accuracy it is important to use the correct constant. If you know how the boat performed with the old motors, or if you can find out some performance figures from someone with the same boat then you can rearrange the formula to find the constant, then recalculate using your new engines. It is absolutely necessary to use the shaft horsepower of the motors, not the bhp when making the calcs.
    If you can't get accurate figures from another boat the same, then you will have to estimate the constant by looking at boats of similar form and configuration as yours.
     
    Willallison, Jun 4, 2002
    #6
  7. ken cooper
    Joined: Sep 2012
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    Location: Pasadena MD

    ken cooper New Member

    Icut down and redesigned a 32 pacemaker, I removed more than 4000ibs and lowered the deck and brought the roof down and forward.Its powered by twin crusaders 270's. The boat is very fast now.
     
    ken cooper, Sep 6, 2012
    #7

  9. beernd
    Joined: Jun 2012
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    Location: Netherlands

    beernd Junior Member

    NO NEED TO SHOUT, TYPE WITHOUT CAPSLOCK THANK YOU!!!
     
    beernd, Sep 6, 2012
    #8
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