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  1. #1
    Antiguan FZR's Avatar
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    Want to see 80MPH on my RXP

    My 06 RXP has the Riva Stage 1, Free flow with Ride Plate holes filled ect.
    My best has been 72 @ 8050RPM
    What would be the best mods to start the climb to 80.
    I am considering the Riva SC, ECU and Injectors to start. WHat kind of gains should I get with these additions?
    I have seen the all the parts list for the Riva Stage 3 but want to build as my pocket can afford.


  2. #2
    Site Admin Green Hulk's Avatar
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    You will see 79-80 on a good day with the mods you mentioned, but you will also need to get the Riva lightweight valvetrain to run the higher RPM's and an intercooler. Without the intercooler you would be way too rich. If you only have money for one then you need to start with the intercooler and get the ECU later.

    If you want a solid 80 mph all day long dig deep into your pocket.

    You will need:

    either Riva ECU with 50# injectors or
    Rotax Racing ECU with 50# injectors and fuel controller
    Rude Charger
    (RR ECU will give you better performance with the Rude Charger)
    Riva Pro series intercooler
    Riva lightweight valvetrain
    Thru hull exhaust
    Riva rear air intake kit

  3. #3
    Moderator Franko's Avatar
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    The Riva Stage 3 SHOULD get you to 80. The RR ECU/b kit/fuel controller/50# injector set up (with lightened valvetrain) WILL get you to 80+.

  4. #4

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    The stage 3 is made to work together. The sc will help the most but requires more fuel. If you just add bigger injectors you have starting and idle problems. So buy these 3 together would be my advice. For a cheaper get buy the 10lb rr sc wheel is a good bang for $500.

  5. #5

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    Yank the motor and put it in a GPR

  6. #6
    RXPDAVID's Avatar
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    Send me $1,000.00 and I will tell you how to do it...

  7. #7
    sleeplessnMS's Avatar
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    For a cheaper get buy the 10lb rr sc wheel is a good bang for $500.
    I 2nd that! Great wheel for the $'s I ran 78-79 in the heat with it.....

  8. #8
    Site Admin Green Hulk's Avatar
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    hey Charles where the hell u been bro?

  9. #9
    mxl16's Avatar
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    Quote Originally Posted by sleeplessnMS View Post
    I 2nd that! Great wheel for the $'s I ran 78-79 in the heat with it.....
    with what setup?

  10. #10
    sleeplessnMS's Avatar
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    Jerry my internet has been down for 2 weeks! mxl16, I had basically a stage 2 setup with RR ECU and sc wheel.... It took a b kit , 4" air intake, nozzle kit, and alittle cool wheather to get the 82+....

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