Prop question

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  • Prop question

    I have a 2006 287 center console seafox with twin suzuki 200’s. I currently have mercury 4 blade 14 - 23p props counter rotating . are usually use the boat for recreation and diving mostly. Not hard-core fishing. My wide-open throttle range is 5000 to 6000. No matter how many people I have in the boat or what the way it is or whether condition is the ultimate max speed I get to is 39.9 miles an hour.It just feels like I should be able to go faster than I do. I do get one heck of a hole shot. At 6000 RPMs I still feel that there is more to give however I don’t want to go over the 6000 RPMs. I am not in this for the speed I am just curious if anybody has any thoughts if I should up my pitch to 23.

  • #2
    5000-6000rpm is a big range. As Jethro says...what is the wide open rpm with motors trimmed up to just the point speed decreases? With a normal load of people gas beach chairs dogs, cats and horses?

    PS you posted this in the wrong category, maybe Ole will move it so Ken will see it.

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    • #3
      If they are 14 x 23 Mercury 4 blades, I'm going to guess they are either Offshore series, or Vensura Props. I never liked those props and rarely ran them. When I did, it was on a single sterndrive boat with the motor deep. They just dont' have any traction.

      Looks like they claim 53 MPH with 250's, https://www.saltwatersportsman.com/b...seafox-286-cc/
      Based on that, I'd expect around 48 with 200's (lightly loaded)
      I think 23 pitch is correct, you just have to get some props with some traction.

      Powertech LFS4 props would be a good choice. Big 16 inch diameter 4 blade that has great bite and sternlift.
      I'd go 23 pitch.
      Or the Mercury Enertia ECO, great all around 3 blade, has good traction and gets great economy at cruise.

      Your current numbers, 6000 RPM at 39 MPH with 23 pitch your at 25% slip. not good
      get a good prop that brings that slip down around 5-9% and you'd be running mid to high 40's if you can turn 6000.



      Ken Reeves
      [email protected]
      941-735-5808

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