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  1. #1

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    Which prop for rxpx 2013

    What would be the best prop upgrade for my rxp it is stock for now but will be going for 8350 tune and gen 3 intercooler and solid pipes. Also when super charger is due for rebuild will put in 137 4 mm wheel


  2. #2

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    15/20 is what most run
    with the bigger wheel it will push past 8350rpm

  3. #3
    with stock supercharger and 15/20 I was pushing 8420! you have a large supercharger need advice of a competent person, wait a little bit you will answer

    Yours

  4. #4

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    8420 is higher then most straight out of the box,
    15/20 has seen rpm of 7800 up when added to a stock x ski
    the majority of people running vtech 8350 have used the 15/20 and a few had to get speed freaks to tweak it
    thats what I picked up reading about 50 threads on here over the last year

  5. #5
    Boost addict hotbird's Avatar
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    until you put the et137x4 wheel in just bend your stock prop.

    My 12 px stock prop went all the way to 79.8 mph (8900RPM)


    When you go et137x4 get a 15/20-22 Solas and bend it to your needs. (the 15/20 15/21 15/22 are all basically the same prop just bent differant.)

  6. #6
    dpracing's Avatar
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    Quote Originally Posted by hotbird View Post
    until you put the et137x4 wheel in just bend your stock prop.

    My 12 px stock prop went all the way to 79.8 mph (8900RPM)


    When you go et137x4 get a 15/20-22 Solas and bend it to your needs. (the 15/20 15/21 15/22 are all basically the same prop just bent differant.)
    +1
    I'm running a 15/20 with a little pitch removed.............

  7. #7
    Quote Originally Posted by owhat View Post
    8420 is higher then most straight out of the box,
    15/20 has seen rpm of 7800 up when added to a stock x ski
    the majority of people running vtech 8350 have used the 15/20 and a few had to get speed freaks to tweak it
    thats what I picked up reading about 50 threads on here over the last year
    I need not deceive you, though I used a different intercooler, thermostat and engine alignment, so I tried 14.19 and walked the skat trak 8480!
    air temperature of 18 Celsius and water temperature 14-16 Celsius! I just got to breathe body)))

  8. #8

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    Quote Originally Posted by hotbird View Post
    until you put the et137x4 wheel in just bend your stock prop.

    My 12 px stock prop went all the way to 79.8 mph (8900RPM)


    When you go et137x4 get a 15/20-22 Solas and bend it to your needs. (the 15/20 15/21 15/22 are all basically the same prop just bent differant.)
    Thanks. So i will put in more on the leading and trailing to load motor and keep RPM down.

  9. #9
    dpracing's Avatar
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    Trailing edge will control your top rpm............

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  11. #10

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    No probs that's what I thought. Thanks

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