E-Tec 40 Prop Question

Discussion in 'Prop Shop' started by stasponge31, May 15, 2012.

  1. stasponge31

    stasponge31 I Love microskiff.com!

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    First off, please excuse my lack of knowledge of props.

    I have a '08 40hp E-Tec tiller that has a 13.25x17 prop, this is the stock prop. I am interested in a stainless 4 blade prop for sale on this forum but, it is a 13x17. Would this prop work? I believe it would just have a quarter inch smaller diameter but I am not that familiar with props other than they spin and make the boat go:) Thank you in advance for your help, Boney

    Tight Lines!
     
  2. Creek Runner

    Creek Runner Well-Known Member

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    What rpm's are you able to turn with the 3 blade @ WOT?
     

  3. stasponge31

    stasponge31 I Love microskiff.com!

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    I'm not sure because I don't have any guages, but a friend of mine running the same motor says his at WOT runs about 5600-5700

    Tight Lines!
     
  4. Creek Runner

    Creek Runner Well-Known Member

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    Typically when moving from a 3 blade to a 4blade your RPM’s will drop and you will need to go to a lower pitch, also you need to make sure it has the right splines for your engine.