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  1. #1

    Join Date
    Jun 2005
    Location
    ohio
    Posts
    62

    just out th 05 rxt with new mods some input need

    hello mt ride has a 15/20 ,2.5 wedge,#42 injectors frizzle ic,riva intake,rear exhaust,power filter,graco water filter,metal washers ,green wheel . out on the lake it was 84 mid humidity only truning 7850 max rpm 68 on gps is this good or can it get better thanks scooter ps it has 160 hrs ,supercharger fresh.


  2. #2
    It can get a lot better.

    Check my sig.

  3. #3

    Join Date
    Feb 2008
    Location
    Perth, Western Australia
    Posts
    227
    Quote Originally Posted by scooter37x View Post
    hello mt ride has a 15/20 ,2.5 wedge,#42 injectors frizzle ic,riva intake,rear exhaust,power filter,graco water filter,metal washers ,green wheel . out on the lake it was 84 mid humidity only truning 7850 max rpm 68 on gps is this good or can it get better thanks scooter ps it has 160 hrs ,supercharger fresh.
    I asked the same question not long ago and was advised the a 14/19R prop would be best for this combo. Maybe your current prop may be robbing you 100-200rpm?

  4. #4
    Gus13letter's Avatar
    Join Date
    Apr 2008
    Location
    Tampa Bay, FL
    Posts
    8,136
    +1
    822
    I would base your mods in reference with this as a guide. http://www.rivaracing.com/pwc_perf_packages/rxt_stg2_kit.asp It helped me in building my RXT. I would say the 13/19R would be better for you. Thats what I ran with my stage 2 setup with Stage 3 SC wheel and worked great. I finally got a 15/20 with my curent setup below and as you can see it takes a lot to turn a 15/20.


    06 RXT 77.2 MPH @ 8180 RPM, Stock ECU, 4” air intake, Rude1 SC, XS Intercooler w/bleed mod, Solas 15/21.5, GH waterbox, 82mm nozzle, Riva intake grate, RE Blockoffs, Jim's rideplate mod, RXT-X pumpshoe-rideplate-grate, 2 degree wedge, added VTS, Riva sponsons, 42lb injectors, RRFPR, 160 degree thermostat mod.

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