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  1. #1
    captain obvious Lurker's Avatar
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    What does it take for a GP1300R to beat an RXP?

    Do they handle better? How much are they spending to make them go 77+mph?


  2. #2
    JFizzleJR's Avatar
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    The gp1300rs don't tend to go 77+

  3. #3
    captain obvious Lurker's Avatar
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    oh

    I thought I read someplace that they were. It could have something else though

  4. #4
    JFizzleJR's Avatar
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    gp1200rs do 80+ often though, depending on their mods. some claim to be doing 85+

  5. #5
    Vern's Avatar
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    The GPRs can go 77+ ... and more. Most GPRs with basic bolt ons (Riva Stage 1 or 2 for example) go 70 - 72 mph. However, with porting, modified props, modified ride plates, trim tab mods and more, they can quite easily go 75 - 78 mph ... on the stock single pipe exhaust. If you choose to add triple pipes ($2500 new and don't work well with the 2003 on up EFI electronics) to a carb GPR, you can get speeds of 75 - 85 mph, depending on other engine and hull mods and how good of a tuner you are. Unfortunately to get speeds above 75 mph there are lots of secrets that are only shared among a very select few people who will do almost anything to make sure that they remain the fastest. While I respect their time and effort, my style would be to share what I learned more freely. So far there are few secrets about which RXP mods work, which is nice.

  6. #6
    Site Admin Green Hulk's Avatar
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    The fastest jetski in the country right now is a GP1300R and belongs to Kerry Hibdon. I personally saw with my own eyes this ski run 85+ consistantly on radar at my last Mudbug Nationals event.

    He ran a best of 85.8 that day

  7. #7
    Site Admin Green Hulk's Avatar
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    Re: What does it take for a GP1300R to beat an RXP?

    Quote Originally Posted by _Lurker_
    Do they handle better? How much are they spending to make them go 77+mph?
    You may hit them up for some info on the yami forum
    www.greenhulk.net/yamaha

  8. #8
    Vern's Avatar
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    JFizzle is right, most of the really fast GPRs you hear about are carb'd 1200s that are bored to 1300+ccs and ported. The EFI 1300 skis run anywhere from 65 (stock) to 72 (Stage 2), sometimes up to 75+ with good porting and very careful experimenting with props, ride plates, trim tabs and more. The GPR is a very good ski to 'hot rod', but it does need some mods to beat a good running RXP. Both skis will run 71 mph with minor bolt on mods (I have a 2004 GP1300R and had a 2000 GP1200R).

  9. #9
    JFizzleJR's Avatar
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    someone told me that gp1300rs don't have mods to make them go much faster than 73 because of the EFI and there aren't any kits to make them go 80s. but i knew that the gp1200s go 80s and they have the triple pipe kit for like 8g on the riva site. hulk, how did kerry get the 1300 to 85.8?

  10. #10
    Site Admin Green Hulk's Avatar
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    That is something Kerry will never tell (for free), but if you drop your ski off to him along with the right amount of $$$ he will make your ski go 80+ too.

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