15hp Evinrude 1978

Discussion in 'Prop Shop' started by Ischurman, Apr 10, 2015.

  1. Ischurman

    Ischurman I Love microskiff.com!

    34
    0
    81
    Looking for some thoughts from you prop gurus
    RPM was taken with tiny tach
    MPH via GPS
    Boat 14 Saltmarsh
    Motor 1978 Evinrude 15hp

    I had two aluminum props to run and the results are below
    Boat was load for full day fishing one person( typical)

    Prop: 9 1/2 x 10
    Max rpm achieved 6010
    Max speed 20mph


    Had to run the motor in 2nd pin hole from bottom to get good bite and prevent cavition on turns and plaining

    9 x 11
    5500 rpm
    19mph


    I would like to buy a stainless prop and keep a minimum max speed of 20mph
    Would like more stern lift and would like to run trimmed higher up
    I run pretty shallow but have thought of adding a bob's manual jackplate for better shallow water preformance

    What are y'all's thoughts?
     
  2. JRP

    JRP I Love microskiff.com!

    180
    2
    93

  3. JRP

    JRP I Love microskiff.com!

    180
    2
    93