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  1. #71
    If I was not reaching the 8200-8400 rpm range I would agree with you that it was a heat issue. But with those rpm's, it has to be something else. I am going to tweak the impeller a bit to see if I can get the rpm back up to 8400. Which will give me possibly another 2mph. But with 8400 with the stock impeller or the 13/18 it should be in the 80-84 range depending on weather IF you believe everyone's claims on here. I just know that this is slower than it was. I don't mind it not going full tilt as I like the quickness as well. And it is a double edged sword. But I expect more from the money that has been put into it.

    Quote Originally Posted by 05_RXP View Post
    Have you tried running with your seat off? Seems that a lot of the 21s have heat/ venting issues.

    if you remove your seat and you pick up some rpm and speed you know what area to start looking

  2. #72
    ptscon's Avatar
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    Riva test shows 83 @ 8400 on the cluster hmmm


  3. #73
    Bob 1tommygunner1927's Avatar
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    What Riva claims:

    RIVA Racing




    Our RXP-X 300 Stage 2 Kit delivers 81 MPH @ 8400 RPM
    Test Unit: 2021 RXP-X 300 Test Conditions: Fresh Water with 180 LB Rider

    Product Page: https://rivaracing.com/i-24083642-rxp... This kit delivers a significant level of performance (+13mph on U.S. models) through easy to install engine upgrades. No internal engine modifications are required. Requires use of fresh premium octane pump fuel (91~93). Kit Components: • RIVA MaptunerX BRP Bundle (All except SPARK) RS110SC-B-1 • RIVA Sea-Doo 2020+ RXT/GTX 300 & 2021+ RXP Power Filter RS13121-2 • RIVA Sea-Doo Catch Can / Engine Breather Kit RS19050-BCC-5 • Solas Impeller SX4-CD-13/15

  4. #74

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    Quote Originally Posted by ptscon View Post
    Riva test shows 83 @ 8400 on the cluster hmmm


    We have two so far who are seeing not so promising results. Dino, get yours on.

  5. #75

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    Quote Originally Posted by jeff24680 View Post
    We have two so far who are seeing not so promising results. Dino, get yours on.
    I guess I'll take one for the team and try it...probably friday. If I get crap results i'm starting a go fund me page and I'll expect your donation.

  6. #76

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    What's crazy is that Riva is putting it on ALL their Stage kits, 2 -> 4. There has to be SOMETHING to it? I await GH Jr results as well.

  7. #77
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    Quote Originally Posted by DinoMite View Post
    Come on Uncle Pete...65 way to slow, feels very turn of the century.

    I like your optimism...30lbs...try 60lbs for 2mph.

    157...feels a bit weak for an Indy car, you sure you had the peddle on the right all the way depressed? My drive to work sounds more dangerous.

    It was the Andretti driving school

    Max speed allowed was 160 the other surprise was the cars had automatic transmissions. You can still rent exotics there for track work if you are inclined

    I passed the eye surgeon on the back straight, on the outside, after I got an ok to do on the pit radio.

    Strictly no passing in the beginner class they said, they liked how I kept my distance from the wall in turn 3

    There was something said about matched and staggered special something but I couldn’t make it out

    And as far as your drive to work…

    The Long Island Expressway was like drafting in a line of 40 cars at 70mph for 40 miles every single day, for 20 years literally two feet apart. Far more frightening

    Why do you think I was hot to move to New Mexico?

    Now I can run 150 miles at 75+ and not pass a single car, or be passed on a Sunday morning airport run for vegas

    And yeah I held the dice for 30 minutes on my first roll of the trip this time. I pick my risks with some care

    Losing weight is my classic go to answer for guys that want speed on the cheap btw

  8. #78
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by nmpeter View Post
    It was the Andretti driving school

    Max speed allowed was 160 the other surprise was the cars had automatic transmissions. You can still rent exotics there for track work if you are inclined

    I passed the eye surgeon on the back straight, on the outside, after I got an ok to do on the pit radio.

    Strictly no passing in the beginner class they said, they liked how I kept my distance from the wall in turn 3

    There was something said about matched and staggered special something but I couldn’t make it out

    And as far as your drive to work…

    The Long Island Expressway was like drafting in a line of 40 cars at 70mph for 40 miles every single day, for 20 years literally two feet apart. Far more frightening

    Why do you think I was hot to move to New Mexico?

    Now I can run 150 miles at 75+ and not pass a single car, or be passed on a Sunday morning airport run for vegas

    And yeah I held the dice for 30 minutes on my first roll of the trip this time. I pick my risks with some care

    Losing weight is my classic go to answer for guys that want speed on the cheap btw
    LOL.....I only did it for 10 years, but it was for 70 miles......each way!

  9. +1 by:


  10. #79

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    Quote Originally Posted by 1tommygunner1927 View Post
    LOL.....I only did it for 10 years, but it was for 70 miles......each way!
    You forgot the part where your walked 3 miles through snow up hill both ways to kindergarten.

  11. #80
    zr2czy's Avatar
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    Click image for larger version. 

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    Not impressed.
    8200 rpm 83*f 47% humidity, seemingly pulls harder midrange than stock, but saw no mph gains.


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