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  1. #1
    dhoad's Avatar
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    plate angle and 2" extension

    I am putting the 2" extension on 05 GPR pump, will I need to reshim the plate for new line of thrust out of jet pump. In other words, will my sweet spot for plate angle change with pump extension?


  2. #2
    Flying Scotsman's Avatar
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    Yep...

  3. #3
    This is a good question. My question is, can the skis with the spacer plate generaly run more or less angle than the ski's without it??

  4. #4
    dhoad's Avatar
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    VOODOO - This is a good question. My question is, can the skis with the spacer plate generaly run more or less angle than the ski's without it??

    thats were I'm going with my thinking, more or less, hmmmmmmm

  5. #5
    Chrisrokc's Avatar
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    Well just to let you know, on my 2004 I can run 1.008 with tabs flat against the hull through 4-6 inch chop and there is no bounce at 71.5 mph. I am going to try a little more angle next time out. 1.03x something. So I am going to say you can run more angle with the extension.

  6. #6
    GPRPITMAN's Avatar
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    To answer the question you can run more angle on a plate without the 2 inch spacer. When creating alot of angle with the 2 inch spacer over 1000 you will have to grind the inside of plate and the nozzle more

  7. #7
    Chrisrokc's Avatar
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    Quote Originally Posted by GPRPITMAN View Post
    To answer the question you can run more angle on a plate without the 2 inch spacer. When creating alot of angle with the 2 inch spacer over 1000 you will have to grind the inside of plate and the nozzle more
    This is true!!! I had to grind mine.

  8. #8
    HopatcongGPR's Avatar
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    with the spacer...the same speeds can be obtained with less plate angle...imho

    the leverage point for lift gets moved further behind the transome plate allowing for increased angle/lift.

  9. #9
    GPRPITMAN's Avatar
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    You are correct sir

  10. #10
    DRC 4 LIFE TheDome's Avatar
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    Hop and Pitman are both exactly correct.

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