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  1. #1
    Powertek powertek's Avatar
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    Jan 2008
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    Toronto,Ontario
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    350

    What do you predict for top speed???

    RXP-X
    15/22 impellar,
    2 degree wedge,
    Riva pro block offs,
    custom 4" intake,
    R & D intake grate,
    Riva nozzle,
    Race Tech dual exhaust,
    82 ring,
    Dynotune boost gauge
    Rotax Racing ECU
    Rotax Racing Cam
    Engine Tech/Race Tech SC Wheel with 3mm spacer
    light weight valve train
    60lb injectors
    Rotax Racing thermostat

    Going into the shop tomorrow and wondering what everyone will think top speed will be???


  2. #2

    Join Date
    May 2008
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    South Eastern Michigan
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    -=Mike G.

  3. #3

    Join Date
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    South Eastern Michigan
    Posts
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    OK... I'll take a random guess at it..

    With leaving the 15/22r as it is? No re-pitching? [email protected] too much RPM... well maybe the reduction nozzle will keep the revs down.

    -=Mike G.

  4. #4
    Avion3333's Avatar
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    Dec 2007
    Location
    Cayman Islands
    Posts
    686
    Quote Originally Posted by powertek View Post
    RXP-X
    15/22 impellar,
    2 degree wedge,
    Riva pro block offs,
    custom 4" intake,
    R & D intake grate,
    Riva nozzle,
    Race Tech dual exhaust,
    82 ring,
    Dynotune boost gauge
    Rotax Racing ECU
    Rotax Racing Cam
    Engine Tech/Race Tech SC Wheel with 3mm spacer
    light weight valve train
    60lb injectors
    Rotax Racing thermostat

    Going into the shop tomorrow and wondering what everyone will think top speed will be???
    78.9mph

  5. #5
    Powertek powertek's Avatar
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    Jan 2008
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    Toronto,Ontario
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    350
    Quote Originally Posted by Avion3333 View Post
    78.9mph
    Well I am getting 76.8mph with just the following...
    Riva stage 1
    Engine Tech/Race Tech SC Impellar with 2mm spacer and Race Tech FPR and 48 injectors

  6. #6

    Join Date
    Jul 2005
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    euxton nr chorley lancashire, england
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    i would predict 82mph

  7. #7
    Avion3333's Avatar
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    Quote Originally Posted by powertek View Post
    Well I am getting 76.8mph with just the following...
    Riva stage 1
    Engine Tech/Race Tech SC Impellar with 2mm spacer and Race Tech FPR and 48 injectors
    well 81.9 lol

  8. #8
    Ride Hard! aha's Avatar
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    Jul 2005
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    Covina, Ca
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    85+ if you can turn that prop 8700 RPM's

  9. #9

    Join Date
    Jul 2006
    Location
    Beaufort, SC
    Posts
    592
    i got a wopping 72.6 with my rude stock ecu 15/20 repitched +3mm rude rrfpr 12 on the afr wooooohooo

  10. #10
    Poppa Dawg's Avatar
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    Dec 2005
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    Alice. Texas
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    Bring that bad boy down here to South Texas right now & you will be lucky to hit 77 mph. Air temps over 100 degrees, humidity in the 90's, water temp. was 89 degrees this past week-end. Good luck with your testing. Sounds like the new wheel might be a winner.

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