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2275 RCW speed and prop

Discussion in 'Members Zone: Props and Power' started by truckone176, Aug 21, 2017.

  1. truckone176

    truckone176 Member

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    I have a 2275 RCW with a Yamaha 250 SHO and it has a Salt water II that is 15.5 x 17 and I can get about 46mph with two adults and one child. The boat is at max RPMs. What speed should I be getting and should I use a different prop?
     
  2. Jb75

    Jb75 Well-Known Member

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    I think 46 @ 6000 rpm is about right for these boats and the 250 sho.  I've run a 15 1/4x 18 pitch 45-47mph with me and the family but only 5400 rpm.  Currently running a 15 1/2 x 16.  48.5 with me only and 6200 rpm.  With my family it runs consistently 45-46 at 6000.  I just got a 15 1/2x 17 today that I will run to try.   Been thinking the 17 up one hole on motor mount may be the sweet spot.  I'll keep you posted.  Motor mount position is another can of worms.  Do have the x length (25) or the regular (20)?   Which hole are you mounted in? 
     
  3. Alicedream

    Alicedream Well-Known Member

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    Location:
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    I have a 300 on 23 RCW and would agree that your are probably in the sweet spot and should be very happy.
     
  4. Rockie69

    Rockie69 Well-Known Member

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    Take a look at the props and power section.


    I was close to 50 with mine and it's 2375 I would run 48 all the time. Are your toons super clean? I started seeing power loss when I got build up on the toons.


    TomS did very well with a 18 pitch I think. After a while you'll start throwing $ a 1 MPH. I had to sell the boat I was so crazy trying to hit 50...
     
    Last edited by a moderator: Aug 22, 2017
  5. BulldogsCadillac

    BulldogsCadillac Just some guy

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    I have the same boat and prop, but with a tower, stereo gear and 300lbs of batteries, two adults and full fuel was right around 45, might have been .4 less or more, can't remember, so should be right around that 48-49 without, but 46 will still beat a lot of the v-hulls out there!
     
    Last edited by a moderator: Aug 22, 2017
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  6. truckone176

    truckone176 Member

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    Thanks for the replies, I was just trying to figure out if I was in the right range. 
     

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