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  1. #1

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    GP1200R impeller upgrade

    With the mods in my signature, should I go with a 13/19 Solas or 14/20 Setback from Riva? I've searched and read a lot and heard it both ways. 13/19 for good holeshot, which is what i want, and the regular 14/20 is only good for heavily modded skis that can keep it turned and from detonating. Would the 14/20 set back from Riva be okay though? Need to do a GPS run but my tiny tach shows 7150 and I think 7200 once or twice. Dream-o-meter says like 54mph but it definitely is going over 63 or so compared to the skis I've raced/riden with.


  2. #2
    Predator-x's Avatar
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    I should go for the 13/19 solas ,proved to be a outstanding prop for your needs.

  3. #3

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    Quote Originally Posted by Predator-x View Post
    I should go for the 13/19 solas ,proved to be a outstanding prop for your needs.
    Was thinking that was my only option until I stumbled upon the custom set back 14/20. What would be the benefit of that over the regular 14/20? Just closer to 13/19 mannerisms?

  4. #4
    Happily Self-Employed WFO's Avatar
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    rpms may be too low with a 14/20

  5. #5

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    Quote Originally Posted by WFO View Post
    rpms may be too low with a 14/20
    What I had read. So 13/19 it is I guess!

  6. #6
    Predator-x's Avatar
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    Iīm running a 13/19 with no huge engine mods ,runs like a dream although i need a new wear ring .

  7. #7

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    Quote Originally Posted by Predator-x View Post
    Iīm running a 13/19 with no huge engine mods ,runs like a dream although i need a new wear ring .
    Worth the $ compared to the stock impeller? Just trying to justify the mod since that's pretty much the only thing untouched without big $$ but mine is fine as of now. Get out of the water and up on plane that much better? I want the most torque and arm pulling power I can get! Lol but without losing top end

  8. #8
    Predator-x's Avatar
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    If stock impeller has too much clearance and needs to be replaced then yes it worth the buck.
    I didnīt notice any top end loss, i guess only heavily modded engines will loss top end with a 13/19 instead of a 14/20.
    Donīt expect to lose any limbs with this prop ,its a good holeshot prop.

  9. #9
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    Setback dynafly are for ho pumps if using standard pump. 13/19

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