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  1. #1
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    4 blade vs. 3 blade impellers

    What performance differences if any can I expect by switching out the stock 4 blade impellers in my SL 650 and 750 skis to a 3 blade skat trak or nujet?


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    17 MPH increase on top speed, and 6 secs knocked off your 0 - 60 time.















    Seriously though:

    Little more top end with Nujet and little bit better bottom end with the Skat trak swirl usually.

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    Damn and I was really hoping for the 17 mph

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    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Usually you'll get better accel from any a/m impeller compared to stock because the trailing edges are much closer to the pump for better efficiency.

    The reason Polaris did this is for rock clearance.

    If you wanna learn more about impellers, check out Impros, Skat's, Solas, and Nujets sites. Also K447 had a nice page about jet pumps and efficiency posted up somewhere. I'm sure he's got that one in his links somewhere.

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