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    83' 115hp Mercury, prop slip

    Thank you Thank you, That probably was the most helpful. I forget that sometimes, there is no best answer in life, just the one you choose. Trial and error and tracking results. Thank you. I am most interested in your gph calcs. What economizer did you use and is it easy to use. With my first...
  2. L

    83' 115hp Mercury, prop slip

    Ok, so Jimmbo, what size boat did you have the 19p merc prop on? Similar to mine? Getting close to 50 sounds better than close to 40. What prop was that exactly, it might be what I'm looking for. I had asked about 4 blades but no one seems keen. Does anyone have a 4 blade at all or are they...
  3. L

    83' 115hp Mercury, prop slip

    So, 3 blade hustler Alu at same 19 pitch you think Chris1956?
  4. L

    83' 115hp Mercury, prop slip

    I do have power trim. I guess I'm not sure why I am against it, I think in my head it adds slip and extra resistance that I don't need/want. Which may not be the case. I'm looking for economy first and speed second. I was looking at solas props and some have cupping and rake and others not so much.
  5. L

    83' 115hp Mercury, prop slip

    So, if you were to try out a 4 blade, with cup and rake, what pitch would you start at? 17? Would you try to stay same diameter as well or not worry so much? Would you share some of your trials with me so I might gleam so info? Thank you for your help
  6. L

    83' 115hp Mercury, prop slip

    Hi, I have a 1974 Starcraft ss (Aluminum deep v hull bow rider) loaded weight at about 2400#. On it is a 115hp tower of power, 1983 max rpm at 5800. Gear ratio is 2.0. On it is a knock off 13x19p 3 blade Aluminum prop. WOT it goes to 5600 rpm at just under 40mph. My goals are to increase a...
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