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  1. #1
    Registered User
    Join Date
    May 2011

    diameter question

    i want to reduce my diameter on the props to reduce transom lift and increase rpm but i dont want to lose top end. can i reduce diameter from 34X17 to 34X16 without losing my top end speed?

    31' chris cat

    Last edited by outlaw1; 05-11-2011 at 10:07 PM.

  2. #2
    Crazy Energy Platinum Member Velocity Vector's Avatar
    My Boats:
    Old Skool 35' Ocean Express Cat 1700 HP
    Join Date
    Aug 2007
    Oklahoma God's country no one else wants it.
    I would think reducing diameter would also alter the pitch. I would try a borrowed set first before altering yours if you can find a set.
    The true measure of a man is how he treats someone who can do him absolutely no good.

  3. #3
    My Boats:
    40 Skater 607Ci 14:71 TF Kobelco
    Join Date
    Apr 2002
    Lake of the ozarks
    The ones he got are borrowed for like 3 years

  4. #4
    Offshoreonly Advertiser Offshoreonly Advertiser bbladesprops's Avatar
    Join Date
    Jun 2003
    Princeton, Wisconsin


    Yes reducing diameter can even increase top speed.
    Sometimes cruise speed my drop slightly.
    Each application is different. We would need to discuss your set up in detail. There is more to reducing diameter than just cutting the prop down. Call us if you wish to discuss this further.

    Brett Anderson / BBLADES Professional Propellers

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