1994 Pursuit 1950 CC/ 2004 Yamaha 150 2 stroke

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  • 1994 Pursuit 1950 CC/ 2004 Yamaha 150 2 stroke

    Looking for some help with propping her out. I think she can do a little more and I am not certain I have the right prop for the boat.
    current prop- 19M
    Motor mounted 2nd hole. motor sits in water correctly and I think thats the right location
    RPM 5100~5200
    Speed 45~47

    This is just a cruising load with a couple of people, full tank of gas

    Cruise speed @4000 RPM is 33-36

    Would like a little more bow lift and a little more top end...maybe

    Boat does get fished some and has a 30 gallon mid mounted live well. Assume 2 maybe 3 people + tackle + trolling motor and 3 more batteries. When the trolling motor is added is when the bow lift will be important (I think). I don't expect to see the above numbers loaded for fishing, I just want to make sure I am not damaging the motor by lugging it.

    thanks

    Chris
    Last edited by Onebadhabit; 08-16-2016, 05:34 AM.

  • #2
    I have plenty of other information on boat including original performance test by Pursuit with a 115 and a 130. They could not provide any information on the 150. Also have pictures of the motor running at speed to show height of trim plate.

    The guy I bought the motor from had it on a 21' cape craft. Comparing the specs of the 2 boats looks like dry he's at least 600~800lbs more and he saw about the same numbers I am seeing.

    This past weekend I traveled about 90 miles at various speeds- no wake zones to 4000 rpm and only a few times up to 5000~5100 rpm just help clear out engine AVG was close to 3mpg. I run ring free 1oz/10gallons + marine 360 ethanol stabil + ethanol free gas ( from local gas station, hence the stabil because you never know what you are getting) + marvel mystery oil ( only reason I run this is because the previous owner ran it and I don't want to upset the apple cart)

    Bottom condition is clean/smooth mostly removed ablative bottom paint. I painted and did not scuff the hull because I did not want to re glass if I ever removed paint.

    Chris
    Last edited by Onebadhabit; 08-16-2016, 05:35 AM. Reason: Added MPG

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    • #3
      your at 7% slip at wide open, 47 MPH at 5200 RPM
      10% slip at cruise.

      Numbers will be hard to beat.
      What were the numbers on the 130 Yamaha?


      Ken Reeves
      [email protected]
      941-735-5808

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      • #4
        attached is performance report from pursuit
        Attached Files

        Comment


        • #5
          Odd that both the 115 and the 130 got 41 MPH in those test.,

          Lets use their numbers for the 115, as those are fast with lower HP.
          http://www.go-fast.com/boat_speed_predictions.htm

          2433 Weight.
          115 HP
          41.2 speed
          Hull factor = 190

          Leave that 190 hull factor in there, and now put in 150 HP. to calculate speed.
          47 MPH is what is predicted


          So I think your close, but if you wanted to run a different prop, My money is on the 19 pitch Mercury Tempest Plus.
          It will give you more bowlift, and if the boat likes it, maybe you'll pick up a little speed.
          Its a little easier to turn then the Yamaha SWS. so you might pick up a little RPM as well.






          Ken Reeves
          [email protected]
          941-735-5808

          Comment


          • #6
            Thanks Ken!! Please give me a price on the prop you recommend.

            [email protected]

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            • #7
              $30 plus shipping and I'll send you a test prop.

              But the price of a new on is $519 plus $45 for a hub kit.

              Ken Reeves
              [email protected]
              941-735-5808

              Comment


              • #8
                I will call you tomorrow. Thank you!!

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