Twin 90's

Discussion in 'Dyna-Ski® Boats' started by barefooter799, Sep 1, 2010.

  1. barefooter799

    barefooter799

    Joined:
    Jul 14, 2010
    Messages:
    10
    Boat Model and Year:
    Ski Boat
    Ski Team:
    X-Squad
    Hi,

    I am looking still on getting a Brand New 20' closed bow Dyna Ski.
    I would like to have a small twin instead of a big single. I am a barefooter and was wondering if Twin 90 Evinrude E-Tecs on A 20' Closed Bow would pull a barefooter with a speed prop! Would it?

    Thanks,
    Eric
     
  2. Must-Ski Motors

    Must-Ski Motors Hydrodyne 20 Specialist

    Joined:
    Sep 1, 2006
    Messages:
    511
    Location:
    Beaver Dam
    Boat Model and Year:
    2008 Dyna-Ski 20' Open Bow, 3.4L 250 HO
    38 mph is max you can expect out of this setup. Great out of the hole, no top end. Too much drag with twins and this little horsepower to get much for top speed.
     
  3. RiverRat

    RiverRat Hydrodyne 18 Specialist

    Joined:
    Sep 30, 2006
    Messages:
    502
    Location:
    Shoreview, MN
    Boat Model and Year:
    1971 Baby Dyne
    Ski Team:
    Twin Cities River Rats
    What is your reasoning for wanting twin 90's vs. a big single?

    A 175 will get you into the mid 40's, be cheaper to buy (than two 90's), cheaper and much easier to rig, easier to drive, weigh less (smaller wake), and have much less turbulence inside the wake (you mentioned barefooting).

    If you want something that will be guaranteed to pull any barefooter as fast as they want to go, go with a big block 200 (200HO evinrude or similar).

    The reasoning behind twins on ski team boats is because they can pull more skiers off the dock than a single.
     
  4. 1964dyne

    1964dyne

    Joined:
    Apr 6, 2007
    Messages:
    45
    Boat Model and Year:
    1964 Tournement Skier
    I concur with all said above. Outboards make great barefoot boats. MasterCraft, Sanger, Flightcraft, etc... all used a single 200 HP. You will also have some wierd prop wash. Don't make your like complicated, go with just one monjo whopping big motor.

    Chad
     
  5. M M

    M M Hydrodyner

    Joined:
    Jun 18, 2006
    Messages:
    47
    Location:
    Ozark, MO
    I also agree that a single 200-250 is more economical and will have more top end than 2 90s, but I also see it from barefoot799's POV, I personally would also (for private use) prefer a small twin, maybe 115, or 150 opti's to a single big block. I think twins handle better with the extra skag in the water, and its just more fun to drive.

    Mike
     

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