25hp Merc on Copperhead

Discussion in 'Prop Shop' started by pescador72, Mar 19, 2009.

  1. pescador72

    pescador72 Well-Known Member

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    Any prop suggestions for running a 25 hp 2stroke Merc on a Copperhead. I am about 5" out and 3" high since it will be mounted on a CMC tilt and trim unit?

    Thanks,
    Mario
     
  2. jgstephenson

    jgstephenson Well-Known Member

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    Mario:

    Call the folks at Powertec.....
     

  3. element

    element Well-Known Member

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    I second the Power Tech rec - When you call them they will spend some time with you. Also, they will trade a prop back if you are not satisfied. When I called them for a prop for my new 30 tohatsu he knew exactly what prop I should use. Good luck George
     
  4. The_Skiff_Shop

    The_Skiff_Shop Well-Known Member

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    I would start with SRA 4 Blade 12 pitch or SRA 3 blade 13 pitch.

    http://www.ptprop.com/images/stories/docs/bclass.pdf

    CR/TSS
     
  5. pescador72

    pescador72 Well-Known Member

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    Capt Ron, would I lose a little top end with the 4 vs. the 3?
     
  6. The_Skiff_Shop

    The_Skiff_Shop Well-Known Member

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    You will most likely lose about 2 mph on the top end with a 4 blade but you would get a better hole shot and plane at slower speeds. I'm using the 4 blade when I distribute weight aft.

    CR/TSS