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  1. #1
    My Boats:
    2001 Advantage Victory 454 procharged
    Join Date
    Nov 2010

    Counter rotating on a single

    Any advantage of a counter rotating outdrive on a single. Looking at a boat and it has a coutner rotating lower unit. Would it help counter react the engine torque ?

  2. #2
    Platinum Member Platinum Member Too Stroked's Avatar
    My Boats:
    Progression 22 w/ Diamond Marine Mercury 2.5 / 200
    Join Date
    Apr 2010
    Rochester, NY
    Some boats use left hand rotation props (Fountain 27' & 29's for instance) for a variety of reasons. Using a counter rotating drive in a single is very unusual. For one thing, it's going to make finding a prop a lot more difficult. Is it original to the boat or did somebody score a cheap drive because it was avaialble?

  3. #3
    Gold Member Gold Member Shore Thing's Avatar
    My Boats:
    21' Paramount
    Join Date
    Feb 2004
    Hollywood, MD
    Yes. Counteracting torque is exactly what it is meant to do. The extent to which it helps depends on the hull. When i put bigger power in my velocity, i changed to counter rotating and it made a small improvement at high speeds.

  4. #4
    T2x is offline
    Allergic to Nonsense Platinum Member T2x's Avatar
    My Boats:
    1966 !8' Switzer Wing "Miss Diablo" 1968 Switzer Wing "Dust'n the Wind 2",, 1960 Powercat 15C , 1977 17' Molinari w/Evinrude CCC
    Join Date
    Aug 2001
    Granite Quarry, NC
    Are you referring to duo prop drives?
    Obsolete and proud of it

  5. #5
    My Boats:
    85 Baja Force 320
    Join Date
    Jul 2009
    Grosse Pointe Farms, MI
    I don't see why it would make finding a prop more difficult. Everyone that makes a RH prop makes a LH, and RHs are more desirable as that's what the majority of singles run. There's tons of LH wheels out there that are left over mates to scavenged RH prop users.

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