Prop question

    • April 5, 2016 at 6:37 am #1236
      hebeda@comcast.net'hebeda
      Participant

      I am running the factory prop on a 150 hp Mercury four stroke on my 1875 impact.  Any suggestions on what to upgrade to and cost?

    • April 6, 2016 at 9:01 pm #1238
      Minfam1@comcast.net'ToddM
      Keymaster

      Dave , the question to ask is what do you want a different prop to do?  Looking for more speed?  Not acheiving the correct rpm?  Better holeshot?   What if anything are you looking to accomplish with a new prop?

    • April 8, 2016 at 7:54 am #1239
      hebeda@comcast.net'hebeda
      Participant

      Good points Todd.  I wasn’t expecting that from you.  I’ll have to think about that versus just “better”…. What prop handles this god awful snow better?

    • April 8, 2016 at 12:41 pm #1240
      Minfam1@comcast.net'ToddM
      Keymaster

      The auger on your snow blower!  If you want more, low on rpm go up one or two pitches on the prop.  Example, my little boat hard a hard time getting to plane with 4 people.  Rpm was low, I went from an 11 pitch to a 13.  Heloped alot.  The compromise is top end speed.  For more speed or too much rpm go down in pitch.  A stainless prop can gain hotshot and top end with the same pitch because it does not flex like aluminum.  The drawback is it does not give when you hit something, you gear case will.  I personally would never buy a stainless for that reason.  You only gain at best about 3mph and spend over 200+ dollars.

    • April 8, 2016 at 1:23 pm #1241
      muskyjunky@gmail.com'Tim Crews
      Keymaster

      I find it doesn’t matter what prop I have on my boat. I can’t catch a fish no matter what pitch it is or what material it is made from. My current prop on my 50 has 2-1/2 blades, each at a different pitch ranging from 2 to 20 degrees. I can go faster using oars into the wind but it get’s me where I am goin, which is usually the wrong place to be.

      By the way, be carefull accepting advice from Todd when it comes to hole shots. Pretty sure he ain’t talkin’ about how fast the boat takes off from rest.

    • April 13, 2016 at 12:10 pm #1258
      muske62@comcast.net'pgutmann
      Participant

      Dave:   You can go to the Mercury website and toggle to their prop selector pages.  This guide will take you through 5 steps in determining which prop to place on your boat based on several factors (weight, RPM, hull design, etc.).  The results will give you both aluminum and SS selections.  Yes, they do cost more but the SS will be the best for efficiency and overall performance of your setup.

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