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  1. #1

    Which impeller for 100% stock 07 Gp1300?

    I just picked up a 65 hour super clean 07 and it's never been modded.
    i ride in 1' chop and holeshot is more important to me than top speed.
    The current impeller is a mess from rock damage and cavitation is extreme.
    I got 64 mph from the dreamometer and would be happy with a gps indicated 60-65
    i am installing a Riva pump seal kit and want to know which impeller would serve me best.
    Also will an intake grate help with holeshot?
    I have 4 late model supercharged skis and want the gpr to have for the different ride experience.


  2. #2
    Been doing some reading and see the 13/19 is recommended but which one? Solas concord?
    Also found Leo's hotshot kit and the exhaust mod that keeps the water box empty at low rpm.
    Are there any other mods I missed?

  3. #3

    Join Date
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    solas dyna fly YG-DF-14/20 and a R&D intake grate for 1200-1300gpr and a plug kit should do nicely IMO Solas" YF" props are for a small hub stator 2000-2004 "YG" is for 2005-2008 pumps Tommy Jordan

  4. #4
    Do you think the 14/20 is my best choice for hole shot? Many others say 13/19

  5. #5

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    13/19 seems to be best on a 1200 gpr. Get you a Yg-df-13/20 solas most of the time they only check 13/19 out of the box anyway, you can re pitch if if it's a little too tall for your likes. Tommy Jordan

  6. #6
    What about the other things that improve holeshot?
    anything not worth the investment? What about the pump cone?

  7. #7
    Quote Originally Posted by pjv911 View Post
    What about the other things that improve holeshot?
    anything not worth the investment? What about the pump cone?
    The cheapest thing/biggest bang for the buck as they say would be to shave the head, run one gasket layer, and buy an R&D intake grate. The head you can mill the oem lip off and still be within safe squish clearance. The grate will stuff the pump better and help with holeshot/cavitation issues.

  8. #8
    Thanks Jim

  9. #9
    Hey is the injection up to the fueling task the higher compression brings?

  10. #10

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    Leo's holeshot kits, which fills in the huge area on the sides and back under the rub rail did wonders on my boat for holeshot and also higher speed handling. It keeps the back of the boat from scooping water and dragging on take off. 14-20 dynafly gets my vote since you have a 1300. You don't need extra fuel for higher compression since you are not adding extra air or oxygen, you are only squeezing the mixture a bit tighter and getting a bit more bang for your buck. You DO need premium fuel though.

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