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  1. #1
    Jknauer00's Avatar
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    Not happy rxp 70 mph?

    I got a 05 rxp with x charger 42 pound injectors fpr fizzle ic 4 inch intake prop intake grate r&d nozzle riva exhaust and water box mod. And 70 all I get out of it. Feels way faster then that I got a gps speedo for my phone still 70. Whats the deal.


  2. #2
    JFizzleJR's Avatar
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    Quote Originally Posted by Jknauer00 View Post
    I got a 05 rxp with x charger 42 pound injectors fpr fizzle ic 4 inch intake prop intake grate r&d nozzle riva exhaust and water box mod. And 70 all I get out of it. Feels way faster then that I got a gps speedo for my phone still 70. Whats the deal.
    What prop? What is max RPM? What R&D nozzle? What was your speed before the mods?

  3. #3
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Yeah.... you have some issues. That simple set-up should be in the mid to high 70's.

  4. #4
    boost junkie skidoochris's Avatar
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    yep I bet your ecu is going into overboost mode
    My 05 ecu did not like any boost over 11

  5. #5
    Jknauer00's Avatar
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    I don't know what prop I got the ski from a guy said he had a different prop and new wear ring. Max rpm is 8100 As for the nozzle i don't know what it's for it was on the ski but it's aluminum and say r&d. I'm new to the seadoos. I thought it should be faster. But what could it be.

  6. #6
    Jknauer00's Avatar
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    How do I stop that new ecu.

  7. #7
    I raced a guy this wknd who had those mods on his 04 RXP. He beat my RXP-X which has consistently GPS at 68 mph.
    I let him use my phone GPS And he also pulled 70mph. Temp was near 90.
    i believe he said his max RPM that day was 7950.

    Here is the thread about that.

    http://www.greenhulk.net/forums/showthread.php?t=221243

  8. #8
    boost junkie skidoochris's Avatar
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    voltage clamp or v-tech ecu flash
    I found it using the cmd my injectors were going to 100% DS

  9. #9
    Jknauer00's Avatar
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    Voltage clamp?

  10. #10
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    The stock 05 ecu does have a MAP sensor limit at right around 12lbs where it locks the injectors open..... but without a CMD it's a non issue. An 05 RXP with nothing more than an X charger, external IC, prop, FPR, air intake, and 42# injectors should run 75-78 mph easily.

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