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  1. #1
    uziwork's Avatar
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    how much more speed with solas concorde?

    if i change from stock impeler wich is in good shape to a solas how much more speed ? engine is stock gpr 1200r-02 72 hours


  2. #2
    spud's Avatar
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    If you get a 13/19 concord by itself maybe 1 mph, but with an R&D or Riva plate and a R&D 800 grate you will gain about 4 mph over stock. Then if you get the J-plate you will gain 5 -6 over stock.

    So 13/19 alone should be 64 -65 mph

    grate plate and impeller 67 - 68

    J-plate, impeller, 800 grate 68 -69

    You will need to step your sponsons with the plate.

    Those are results I see with my skis at sea level

    If you are going to mo your engine at all get a depitched speedcut 14/20

    these are all concorde impellers I'm talking about.

    A Nu-Jet 6.5 is a good impeller for a slightly modded engine as well.

    Hope this helps

  3. #3
    flyboy's Avatar
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    I have a concord 13/19 if you want to buy it. I'll have to dig it out, it's like brand new

  4. #4
    Moderator RX951's Avatar
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    Quote Originally Posted by spud View Post
    If you get a 13/19 concord by itself maybe 1 mph, but with an R&D or Riva plate and a R&D 800 grate you will gain about 4 mph over stock. Then if you get the J-plate you will gain 5 -6 over stock.

    So 13/19 alone should be 64 -65 mph

    grate plate and impeller 67 - 68

    J-plate, impeller, 800 grate 68 -69

    You will need to step your sponsons with the plate.

    Those are results I see with my skis at sea level

    If you are going to mo your engine at all get a depitched speedcut 14/20

    these are all concorde impellers I'm talking about.

    A Nu-Jet 6.5 is a good impeller for a slightly modded engine as well.

    Hope this helps

  5. #5
    Moderated
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    flyboy

    what do you want for the prop?

    I got my plate from jim and a grate on the way just need a prop for my 02 and i should be right for a bit.

  6. #6
    All hail the Chief! fullboogie's Avatar
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    NuJet from Carl is the way to go for your mod level. Best mid and top end of any prop out there - up to about 72 mph.

  7. #7
    flyboy's Avatar
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    the prop I have is actually a SetBack 13/20 but I'll take 140

  8. #8
    Quote Originally Posted by fullboogie View Post
    NuJet from Carl is the way to go for your mod level. Best mid and top end of any prop out there - up to about 72 mph.
    ran 81 with "big daddy' with a nujet--GOOD top speed impeller!!!

  9. #9
    All hail the Chief! fullboogie's Avatar
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    Well hook a brother up, Carl! I'm always looking to try something new. Is that prop based on the 6.5?

  10. #10
    I have an Island racing Nu-jet 6.5 setback, depitched to 12/18.5 with Carls race finish. It's in excellent condition and I will sell it for $150 if you're interested.

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