Prop for 150 Etec – 21 or 19??

  • jkalander
    Holmen, WI
    Posts: 16
    October 7, 2007 at 8:09 pm #1235751

    I have an Alumacraft 175 Tournament Pro with a 150 Etec. I’m not getting the RPMs up over 4800 – owners manual says that it should be up around 5500.

    Does anyone have a similar rig? Are you using a 19 pitch prop? (I currently have a 21 on my Etec).

    Also, will this give me a few additional mph?

    EricS
    Guttenberg Iowa
    Posts: 3
    October 7, 2007 at 9:13 pm #614306

    I have a customer that has a 175 Dominator with a 150 E-TEC.It is a 25 inch model mounted the 3rd hole up and turns a 19″ 4 blade Merc prop to 5400 @55mph on the speedo.
    The prop is a Vensura and works awesome.

    broadwaybob
    Janesville, WI
    Posts: 402
    October 8, 2007 at 12:49 pm #614469

    You are definitely overpropped. Try a 19″ from your dealer since they should have propped it correctly from the beginning. BRP likes to have their motors turn a 17″ – 19″ prop on a general purpose boat and 19″- 21″ on high speed hulls. Check out BRP’s website for a similar setup in their 150 hp performance tab. Keep in mind that you hull is heavier than the Navigator 175 and they run them w/o all your gear. http://www.evinrude.com/NR/rdonlyres/61920FC7-658E-4261-BF36-7E608000FDD0/0/PE511.pdf

    Jami Ritter
    Hastings, MN
    Posts: 3067
    October 8, 2007 at 1:23 pm #614484

    I had the same issue, I’m running a 150 ficht on a 1800 pro v, was getting about the same revs as you are. I went to a Raker. I’ll have to dbl check on the exact size tonight.

    Jami

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