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  1. #1
    agk583's Avatar
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    Jul 2010
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    Lake Hopatcong, NJ
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    41

    03 GP 1300R Help

    Hi everyone, I'm building my ski to go a bit faster. It's a 2003 GP1300R. I've got the stock head shaved, Carbon Tech Reeds (on their way), R&D stuffer or Riva Boyesen stuffer, 3 degree keyway, wave eater clips and couplers, Riva Powerplenum intake, D plate with chip, Riva EFI controller pump shoe is sealed, aftermarket nozzle (not sure what it is), aftermarket intake grate again not sure what it is and a HO pump on it's way and i'm reinforcing the tunnel. The question I have is there anything else I would really need to do to the motor? And in your opinion which is a better reed stuffer to use? Lastly, what impeller should I try to use? I've heard a Solas Dynafly 14/20. Thanks for any help


  2. #2

    Join Date
    Jul 2009
    Location
    toledo ohio
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    if you need a gp1200r nozzle i have one that i welded up and machined to remove the visible water spout . its a 87mm nozzle it compliments lots of impellers look at the riva kits and they always recommend the bigger hole . or go with the 05-08 pump and use a 14/20 dynafly i have a new and used impeller for sale

  3. #3
    agk583's Avatar
    Join Date
    Jul 2010
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    Lake Hopatcong, NJ
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    41
    The 05-08 pump is the HO pump which i have on the way... I just bought it a few days ago so i'm waiting for it to show up. I'm really not sure what nozzle I have. If you have a 14/20 Dynafly PM me a price for new and used... I have a local guy that can fix up a used one. Thanks

  4. #4

    Join Date
    Jul 2009
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    toledo ohio
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    if you have a 1300 it comes with a 85mm nozzle it take a lot of motor to push a 14/20 thru it . might lose rpm that you can get back with a 87mm nozzle . all depends on the motor and prop . i want 210 for it , i paid more than that for it . you would pay exact shipping i wont make money on shipping . the used one was only used for a hour of time it looks just like new . you can make me a offer i know they will sell eventually , thanks again this is my email ad [email protected]

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