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  1. #1
    tottii's Avatar
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    Riva 2008 Rxp-x 255 Stage II Kit

    RIVA 2008 RXP-X 255 STAGE II KIT

    Kit Part # RS-RPM-RXPX-2
    Stock 68 MPH @ 8,000RPM
    Description Quantity Part No.

    RIVA Performance Power Filter Kit 1
    RS13050-06

    OEM Intercooler Upgrade Kit 1



    RS1755-ICUK

    OEM Intake Manifold Upgrade Kit 1



    RS12080-IMUK

    Rear Exhaust Kit 1



    RS15050-1

    Fuel Injector Kit (50lb) 1



    RS12050-I-KIT-50

    Valve Train Upgrade Kit 1



    RS19050-VTU

    ECU 1



    N/A

    Thermostat Kit 1



    RS1015

    RIVA Top-Loader Intake Grate 1



    RS22080

    RIVA 2 Pump Wedge 1



    RS23050

    Impeller 1



    N/A

    RIVA VTS Extension Rod 1



    RS23050-1-ER

    RIVA Pro-Series Reduction Nozzle 1



    RS23050-N
    Riva Sponson Kit 1 RS26050
    Last edited by tottii; 06-24-2008 at 03:37 PM.


  2. #2
    Fast & Loud meeper's Avatar
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    Whats the MPH on stage 2?

  3. #3
    italianstallion314's Avatar
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    Well if there is going to be a new ECU, I am going to have to guess and say it's going to be fast haha. I have no clue, maybe low 80s? People are seeing 74-75 with mild stage 1's.

  4. #4
    Antiguan FZR's Avatar
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    I wonder what is the OEM Intercooler Upgrade Kit? Will be nice to see the results. 80+??????

  5. #5
    Quote Originally Posted by Antiguan RXP View Post
    I wonder what is the OEM Intercooler Upgrade Kit? Will be nice to see the results. 80+??????
    Probably the relocation kit.

  6. #6
    Test Pilot and Racer for Hire phoenixcustoms's Avatar
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    Quote Originally Posted by tottii View Post
    RIVA 2008 RXP-X 255 STAGE II KIT


    Kit Part # RS-RPM-RXPX-2
    Stock 68 MPH @ 8,000RPM
    Description Quantity Part No.

    RIVA Performance Power Filter Kit 1
    RS13050-06

    OEM Intercooler Upgrade Kit 1



    RS1755-ICUK

    OEM Intake Manifold Upgrade Kit 1



    RS12080-IMUK

    Rear Exhaust Kit 1



    RS15050-1

    Fuel Injector Kit (50lb) 1



    RS12050-I-KIT-50

    Valve Train Upgrade Kit 1



    RS19050-VTU

    ECU 1



    N/A

    Thermostat Kit 1



    RS1015

    RIVA Top-Loader Intake Grate 1



    RS22080

    RIVA 2 Pump Wedge 1



    RS23050

    Impeller 1



    N/A

    RIVA VTS Extension Rod 1



    RS23050-1-ER

    RIVA Pro-Series Reduction Nozzle 1



    RS23050-N

    Riva Sponson Kit 1 RS26050
    And has RIVA officially released this for purchase or is this there working on it still but we will tell you what the kit consist of type things....

    ...........cause I am looking everywhere and am not seeing anything out there on this info.............
    Last edited by phoenixcustoms; 06-24-2008 at 03:04 PM.

  7. #7

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    If you look at the Riva forum, they say the kit is ready, but waiting to resolve overstuffing.

  8. #8
    Test Pilot and Racer for Hire phoenixcustoms's Avatar
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    ok I take some of that back......

    Quote RIVA forums

    We appreciate the support and interest. Out Stage II Kit for the RXP-X is basically ready. However, we are not ready to release it yet. This is due to the pump overstuff phenomenon that occurs at speeds at or above 77mph (RXP-X only). The rear of the craft lifts suddenly causing it to turn sharply and violently. We're close to a resolution and hope to be able to release our kit soon.

    In the meantime you can safely and confidently install our Stage I Kit as well as the Optional Upgrades listed at the end of the web page outlining the kit.

    At Mud Bug (last weekend) our Stage I RXP-X ran a solid 75.6mph with the following additions:

    Pro-Series Power Filter Kit
    Intake Manifold Upgrade Kit
    Thermostat Kit
    Pro-Series OPAS Block-off Kit
    Pro-Series Sponson Kit
    Intercooler Updgrade Kit (coming soon!)


    Second Quote:
    Welcome to our forums mr F! I can't say exactly what top speed you can expect as our RXP-X had one additional part I forgot list initially, but have since added to the list. We haven't tested without the Intercooler Upgrade Kit. If I had to guess I'd say you can expect to be within 1~2mph of our RXP-X at sea level.

    Everything above except for the Pro-Series Power Filter Kit will be part of Stage II as well as a few other items. Stage II will retain the Performance Power Filter Kit and require a different pump impeller from the Stage I Kit 15/22R.

    Once the kit is nailed down I will post a list of the parts as well as performance data.

    HUMMMMMMMMM

  9. #9
    tottii's Avatar
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    most if these items are available now
    instead of some items such as

    OEM Intercooler Upgrade Kit
    Impeller should different size or brand than solas

    only these things are not available

  10. #10
    Enufpwr's Avatar
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    OEM Intercooler upgrade kit?

    I hope this is a new intercooler setup instead of just a relocation kit. Would love to know more info on this OEM intercooler upgrade kit.

    I hope Riva is going to release something like Bruce is using for the GPR-SHO conversion but for the RXP-X.(see picture below)----A manifold intercooler kit for the RXP like this would rock.

    Please release something like this soon
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by Enufpwr; 06-24-2008 at 04:24 PM.

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