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  1. #1

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    Group K 1390's on there way.

    both of my gpr 1200r's and my brothers gpr are there getting done. Harry is also putting in the 05 pumps. He's been really great to deal with. I am also getting new cranks and sanding the hauls done.


  2. #2
    GPRPITMAN's Avatar
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    They Run awsome Best of luck with it let us know how they run. Were you at bug? I had a group k boat there

  3. #3

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    No I was'nt there I wish I could have been. I would of liked to have met fercho and personaly thanked him for all the stuff I learned over the years. When I pick them up all post the speeds im getting. Did you put the 05 pump on your boat. And do you think I should have my cranks trued and welded.

  4. #4
    GPRPITMAN's Avatar
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    Well Fercho did not make it this year I do not have my crank trued and welded, But if it's out of the boat and you can send it off it's worth the piece of mind

  5. #5
    GPRPITMAN's Avatar
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    oh yea forgot yes I do have the 05 pump in dyna fly prop

  6. #6

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    I am gonna have him true and weld them since there already apart. Can you think of anything else I should have done why there there.

  7. #7
    Hey guys

    I installed Harry's 1390 last Oct and I'm very happy with it. Have just bought the 05 pump and need a prop. Does Harry change the pitch on the Dynafly to suit the 1390?

    Mike

  8. #8
    GPRPITMAN's Avatar
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    I don't know if harry pitches prop's or not I pitch my own. Send it to carl at Island racing tell him you want to start at a 15-24. Your probably gonna have to play with it from there

  9. #9
    Thanks

  10. #10
    eric1238's Avatar
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    My 1390 BB is in transit back to me right now. I can't wait. I also got the crank trued and welded. Group K says to grind some material off of the exhaust side of the case. Email them and ask them for the pics so that you can do this before putting the case back together and then there will be no worry of getting shavings in the case. GPRPITMAN was very helpful with all of the questions I had. I ordered the 05 pump and 14/20 from Carl. He told me to stick with the standard pitch til I see where I am at but I kind of wish that I had gone with the pitch Forrest is running. We will see what happens.

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