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  1. #1

    what the hell is going on with me 07 rxp!? only 70.8 mph?!

    i have an 07 rxp with x charger , 4 inch front intake with kanaflex, 42lb injectors, rxpx prop, and riva top loader intake grate. my top speed today in the lake with 3/4 tank was 70.8 at 7900 rpm!


  2. #2
    83.0 @ 8400 jhill19's Avatar
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    Prop might be too steep try a 14/19

  3. #3
    im turning 7900 rpm with it..... what is best speed someone with a stock rxpx prop can get ? like a regular rxpx top speed with stock prop?

  4. #4
    83.0 @ 8400 jhill19's Avatar
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    Probably about the same speeds you are but the x models have a larger pump tunnel allowing more water through. Might try bending that prop to get your rpms up. Or an ex ic

  5. #5
    what would happen if i jump to a 15/20r

  6. #6
    if i go ext int do you think i will be at rev limit?

  7. #7
    83.0 @ 8400 jhill19's Avatar
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    Probably still be the same with a 15/20. Ext ic will boost your rpms up right to the limiter I believe. X skis come stock with an ex ic. But you'd also need a rrfpr

  8. #8
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by bksbigboy69 View Post
    if i go ext int do you think i will be at rev limit?
    Probably

  9. #9
    why would i need rrfpr if i have 42lb injectors

  10. #10
    83.0 @ 8400 jhill19's Avatar
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    it is needed in addition to the 42's to add fuel up top when running an ex ic

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