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  1. #1
    Site Admin Green Hulk's Avatar
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    What’s faster, 2021 RXP-X or 2021 GP1800R SVHO?

    So the biggest question in everyone’s mind is which one is faster. Be sure to stay tuned to the GreenHulk.net forum and subscribe to the GreenHulk Garage YouTube channel as we will be doing extensive testing between these two awesome 2021 watercrafts.
    We will be doing testing with both skis in bone stock configuration, speed limiter removed, stage 1, stage 2 and stage 3 level of modifications. Lots of great content is coming. Please subscribe 👍
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  2. #2
    Water4fire's Avatar
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    I cant wait. #dreamjob

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  4. #3
    AZRIVERBOY's Avatar
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    Jerry,

    I just picked up my 2021 RXP X 300 today! Going to Parker Tuesday And Wed and will flash at 5 hours with rear air and extra ventilation. I all ready ordered the K&N filter and Catch can from you in December. I will order the Tune and hopefully Can get it my Monday so I can load in in my Maptuner X. Would to compare results with you and Greg
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  5. #4
    Let's go, Yamahammer!!!!!!!Click image for larger version. 

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  7. #5

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    I'm going with Seadoo quicker, Yamaha faster on the top end.

    Full disclosure, you couldn't give me a GP1800...well that's a bit extreme...you could give me one.

  8. #6
    Team Bilford's Avatar
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    Quote Originally Posted by DinoMite View Post
    I'm going with Seadoo quicker, Yamaha faster on the top end.

    Full disclosure, you couldn't give me a GP1800...well that's a bit extreme...you could give me one.
    I'll agree with you on both statements, but the RXP will always be quicker, the GP will only be faster with mods.
    With the additional hull in the water, I would expect the GP to be faster with just the speed limiter removed, although the numbers already published by Greg don't necessarily show that. We shall see soon.

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  10. #7
    SplishSplash's Avatar
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    Which is faster? Nothing can catch this!!! No SeaDoo, No Yamaha!
    Look how the tech has changed.
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  12. #8
    AZRIVERBOY's Avatar
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    I just got about 6 hours on mt 21PX and have some results to share. I love this new ski.The handling rocks like my 216 PX300 did. ECU was limited until I got 2.2 hours on it and then I was hitting 8k RPM before the speed limiter kicked in. I like to vary my RPM during the first 5 hours including some hard launch's. I put 2.9 hours on it Tuesday and 2.6 on Wednesday. I flashed the ski Wednesday morning before I Launched. Here is what I have so far

    57 degree water 75 degree air about 500 ft elevation. Colorado river Parker strip AZ
    3 Bars fuel.
    255 lb rider
    Bone stock Riva flash only. Stock air intake prop etc. No added ventilation
    Top speed 77-78MPH on factory dash. Will take some readings from GPS phone app next time.
    .4 to .5 MPH water current.
    RPM 8200

    I am very happy with the initial results. I will add the following

    4" rear air with 4 - 2" ventilation holes covered with frogskinz
    Gut out flame arrester from intake manifold.
    Stage two Flash.

    I may add a Solas SXX 13/18 for comparison soon.

    Stay Tuned!
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  13. #9

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    8200 rpm at 77-78, how much fuel onboard?

    I was seeing 76 at 8040 on the demo ski I road so that's probably about right.

  14. #10
    AZRIVERBOY's Avatar
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    3 Bars

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