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  1. #1
    RC poster
    Join Date
    Jul 2010
    Posts
    3

    Spur gear for Revo

    I have a Revo 3.3. The spur gear is worn off. Does anyone know how the size affect the speed and the torque? the stock number is 38T.

  2. #2
    RC Racer
    Join Date
    Aug 2010
    Location
    Farmville VA
    Posts
    208
    IF you go for higher tooth count, torque is increased, but top speed is decreased. Lower tooth count decreases torque, but increases top speed.

  3. #3
    RC Racer
    Join Date
    Apr 2009
    Location
    Houston / Champions Area
    Posts
    101
    TRAXXAS REVO GEAR RATIO CHART

    CLOSE-RATIO GEARING

    CB-14 CB-15 CB-16 CB-17 CB-18
    SG-35 17.795 16.608 15.570 14.654 13.840
    SG-36 18.303 17.083 16.015 15.073 14.236
    SG-37 18.811 17.557 16.460 15.492 14.631
    SG-38 19.320 18.032 16.905 15.910 15.026
    SG-39 19.828 18.506 17.350 16.329 15.422
    SG-40 20.337 18.981 17.795 16.748 15.817

    STOCK-RATIO GEARING

    CB-14 CB-15 CB-16 CB-17 CB-18
    SG-35 16.326 15.238 14.285 13.445 12.698
    SG-36 16.793 15.673 14.694 13.829 13.061
    SG-37 17.259 16.109 15.102 14.213 13.424
    SG-38 17.726 16.544 15.510 14.598 13.787
    SG-39 18.192 16.979 15.918 14.982 14.149
    SG-40 18.659 17.415 16.326 15.366 14.512

    WIDE-RATIO GEARING

    CB-14 CB-15 CB-16 CB-17 CB-18
    SG-35 15.023 14.022 13.145 12.372 11.685
    SG-36 15.452 14.422 13.521 12.726 12.019
    SG-37 15.882 14.823 13.897 13.079 12.352
    SG-38 16.311 15.224 14.272 13.433 12.686
    SG-39 16.740 15.624 14.648 13.786 13.020
    SG-40 17.169 16.025 15.023 14.140 13.354

    Lower the final drive ratio, the higher the top speed. Higher the final drive ratio the more accceleration and punch

  4. #4
    RC Racer
    Join Date
    Apr 2009
    Location
    Houston / Champions Area
    Posts
    101
    sorry ! move the cb column over so that you can use the graph from left to right and top to bottom in columns!

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