Need help propping my ride...

Discussion in 'Prop Shop' started by James4302, Jul 20, 2011.

  1. James4302

    James4302 Chasin' tails

    28
    0
    81
    I have an 06' Gordon waterman 16' with a tunnel. With a 40 tohatsu tldi the current prop I am running is a warn 11" 12p with hardly any cup I can only get 52-5400 RPM 3B I had a custom prop builder build me a prop and he came up with this. 11" 10P 3B cupped. with the 12p I have seen 25 MPH but loose about 3-4 MPH with the 10p and gain about 2000 RPM with 20 gallons up front and 500lbs on the rear deck trimmed out jack plate with the 12 p cavitates if I raise it more than a 4 on JP and starts to loose water pressure and gives me a high temp alarm. I can run the 10p in shallow water on a 5.5-6 sometimes without an high temp alarm... Just getting frustrated... Any suggestions would be greatly appreciated.... Thank you in advance.
     
  2. swaddict

    swaddict Thread Killer

    693
    43
    403
    contact Ken at propgods.com or Marcus at PT props marcus@ptprop.com
     

  3. The_Skiff_Shop

    The_Skiff_Shop Well-Known Member

    414
    0
    391

    Am I reading this correctly?  A 2000 rpm difference between a 10 and 12 pitch.?
     
  4. James4302

    James4302 Chasin' tails

    28
    0
    81
    Sorry 200RPM diff...
     
  5. The_Skiff_Shop

    The_Skiff_Shop Well-Known Member

    414
    0
    391
    OK.  That's moe better. (technical prop talk ;))

    What are you hopping to achieve?
     
  6. James4302

    James4302 Chasin' tails

    28
    0
    81
    Looking for a bit more speed... Maybe mid to upper mid 20's talked to my prop builder and we are going to try an 11 P and see what that does... And go from there...