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Thread: 03 gtx sc

  1. #1

    Question 03 gtx sc

    Hi all. I change my plastic pump for a aluminun one rxp 05, and i like to know that nozzle to use, the 05 was complete and i have the 03 nozzle, the 03 nozzle is more long that the rxp, let me know.


  2. #2
    lextoy's Avatar
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    are you talking about the steering nozzle??
    you can try them both, diameter of the nozzle is important for speed, length of the nozzle will help for turning.
    i am going to say go with the longer nozzle, on the gtx hull steering is a bigger issue than speed for a mostly stock ski...
    it is still able to use the reverse system correct??

  3. #3
    Quote Originally Posted by lextoy View Post
    are you talking about the steering nozzle??
    you can try them both, diameter of the nozzle is important for speed, length of the nozzle will help for turning.
    i am going to say go with the longer nozzle, on the gtx hull steering is a bigger issue than speed for a mostly stock ski...
    it is still able to use the reverse system correct??
    Hi lextoy. thank for the imf, i still able to use the reverse system, my gtx 03 is no stock, i change the super charge for a 05 rxp, the over gire, external intercooler, free flow ,forge piston. i need to change the ecu and other parts.
    thanks
    Pablo
    from Puerto Rico

  4. #4
    King_Of_Fun's Avatar
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    It sounds like your ski should run pretty good and be a sleeper. Let us know your GPS speed... Ron

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    jpeconsult's Avatar
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    +1. Give us details on your set-up. GPS/RPM that thing too.

  6. #6
    lextoy's Avatar
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    you want to use the entire pump from the 05, including the wear ring and the impeller, you will need a different driveshaft from a GTX limited or a RXT. to match up to the bigger impeller.
    basically the stock impeller and wear ring from a 185hp ski are smaller diameter than on the bigger 215hp skis. you have the power to turn the bigger impeller.
    you will see big gains when you swap in the bigger pump impeller combo.
    definitely upgrade the ecu.
    you basically are building a 215hp unit, and can expect similar performance when all setup and tuned. there are other mods you can do also to go for higher performance , like stage 1 stage 2 etc.

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