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  1. #1
    SJL Custom's Avatar
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    Should I not be faster with these mods???

    Currently running a 05 rxp with the following mods:
    Riva ecu, valvetrain and injectors
    riva rideplate and intake grate
    x charger
    re blockoffs
    15/22 prop
    xs cooler w/ bleeder
    riva reduction nozzle w/ 82mm ring

    I'm only seeing 7900-8000 rpm and 74mph. Shouldn't this setup get me into the 80s?
    I tried the same setup but with a 15/20 and only saw an increase in rpm to 8450 and 1 mph faster?


  2. #2
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    What air intake you running? Toss on the OEM venturi and see what happens...

  3. #3
    SJL Custom's Avatar
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    I'm running no air intake at the moment. I tried taking out the reduction ring and with nothing in there I didn't see any changes to speed or rpm

  4. #4
    Eric Ocman's Avatar
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    Quote Originally Posted by SJL Custom View Post
    I'm running no air intake at the moment. I tried taking out the reduction ring and with nothing in there I didn't seeing any changes to speed or rpm
    No Intake??? And you are way low on RPM's bro with a Riva ECU. You need to be close to 8600. When you get to that point you should be close to 80

  5. #5
    SJL Custom's Avatar
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    I know. The ecu and x charger shouldn't have any problems pushing a 15/22 right?

  6. #6
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    With those mods... that ski should run 80+ on a bad day

  7. #7
    Eric Ocman's Avatar
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    Quote Originally Posted by SJL Custom View Post
    I know. The ecu and x charger shouldn't have any problems pushing a 15/22 right?
    You need a 15/20 with that ECU I believe. Wait only 1 MPH??

    You should be VERY close to 80 with your gear.

  8. #8
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by SJL Custom View Post
    I know. The ecu and x charger shouldn't have any problems pushing a 15/22 right?
    You've got to depitch your prop to get the RPM's up where they need to be when you add a ECU.

  9. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Just toss a bigger charger on it

  10. #10
    SJL Custom's Avatar
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    I tried a 15/20 with a little bit on the trailing edge and it brought my rpm up to 8450-8500 and my speed up to 75mph. But there really isn't anything left there for speed

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