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  1. #1
    Member
    Join Date
    May 2016
    Location
    Lake Talquin Florida
    Posts
    15

    25 HP Mercury Prop

    I have a small 14 ft Aluminum boat stick steer with a 25HP Mercury 4 Stroke. Currently I have a 3 blade 11 Pitch aluminum prop and I am only able to run at 26 MPH. To get more top end speed what does anyone recommend for a prop and pitch. I would like to upgrade to stainless, recommendations please, thanks

  2. Member
    Join Date
    Oct 2015
    Location
    Pensacola, FL
    Posts
    639
    #2
    Without a tachometer there is no rational basis for advice from our vantage point.
    Last edited by LOSTTEXAN; 08-27-2017 at 12:53 AM.
    You Don't Know what you Don't Know until you Know.

    1984 Champion 201/Yamaha 175
    1986 Ranger 390v/Yamaha 200
    2002 Viper Cobra Coosa 216/Mercury 225EFI
    2002 ProSports ProKat 2200/Twin Yamaha 150HPDIs

  3. Member
    Join Date
    Sep 2016
    Location
    Ruma Ill
    Posts
    803
    #3
    I have that same motor on one of my duck hunting boats . Great little engine . ? Do you have power trim . Does th little red light come on when you run it wide open . If the red light comes on at wide open then you need the next pitch bigger . If it doesn't then That's the pitch you need to stay with . The stainless prop will make how it runs all around better .

  4. Member 61Woody's Avatar
    Join Date
    Nov 2004
    Location
    Waterloo,IA.
    Posts
    3,841
    #4
    I have a 2 stroke 25 merc on my 14' flat bottom and run a aluminum 12 and 13 pitch, I have no tac either but both props run within 1 MPH of each other 25-27 MPH depending on conditions, My guess is if it it planes out OK you have the right pitch
    21 Lund 1775 Impact XS 21 Merc 115 Pro XS

  5. Member
    Join Date
    Dec 2014
    Location
    Brookfield Illinois
    Posts
    1,618
    #5
    I run a 9 pitch on my 25. Takes a bit to get on plane but it gives the most top end. Hole shot isn't important on the HP restricted lakes I fish.
    Please release me,let me go.