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New Engine: 24 to 28P prop too much?

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  • New Engine: 24 to 28P prop too much?

    I just installed a crate cammed 383 in place of my old merc 6.2L. It's not a drastic change, but it has a few more ponies than the stock engine had (320hp)

    The boat had 24P props on it's bravo 3 drive. It will now reach redline 5200 RPM at about 2/3 throttle. If I jump all the way up to a 28P prop, will that be too drastic of a change?
    2005 Rinker Captiva 232
    Merc MAG 350 MPI
    Bravo III Drive 26P Merc SS Prop
    2016 Venture VATB-5225 Aluminum Trailer

    2005 GMC Yukon Denali Tow Vehicle
    2010 Chevy Camaro RS/SS Daily Driver

  • #2
    What ratio drive do you have on your 232?
    Thinking a 2:0 if not 2:2 maybe
    94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
    95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
    07 Seadoo GTX
    Merc Adults Only VP Adults Only
    G-Dad always said "First Liar doesn't stand a chance"

    Comment


    • #3
      I have a 2.20 ratio drive.

      i can’t figure out how to update my signature block. I sold my rinker 232 and now I have a rinker captiva 262.

      merc 6.2L MPI top end with a cammed 383 short block
      Bravo 3 2.20 drive
      24P factory merc props
      2005 Rinker Captiva 232
      Merc MAG 350 MPI
      Bravo III Drive 26P Merc SS Prop
      2016 Venture VATB-5225 Aluminum Trailer

      2005 GMC Yukon Denali Tow Vehicle
      2010 Chevy Camaro RS/SS Daily Driver

      Comment


      • #4
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        I'm thinking the 28, and hope you don't need 30
        94 Formula 27PC Custom 509MPI MEFI3 , B3 XR
        95 Rinker 232 w/ 7.4L Carb 0F425011 B1 0F486471
        07 Seadoo GTX
        Merc Adults Only VP Adults Only
        G-Dad always said "First Liar doesn't stand a chance"

        Comment

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