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  1. #1
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    E Revo XO-1 brushless system gearing help

    I just bought a XO-1 brushless system with the 1717 motor for my brushless revo. just looking for a good starting point on what gearing i should us to get good top speed without killing my batteries (2 venom 3s 5000 35c) or my ecs? Right now i just have the stock gearing for the E Revo I think it is 54 or 56/18?

  2. #2
    RC Turnbuckle Jr. humayrayakongkinaon's Avatar
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    welcome aboard vgad.....congrats owning XO-1 ESC/motor system...hope you get the truck together in one piece LOL, J/K. do you consider running mod1 gear? they are just bigger tooth gap from the stock gears mod0.8. i find mod1 gears easier to mesh (not that i cant mesh any other pitch). i tried 20t/40t and its pretty fast with my MMM/2200, then i tried 36t spur and i cant control the truck at WOT.

    if you wanna stay with stock mod 0.8 gear...try gearing it 20t/54t and see it from there.
    | Rally GT8 Powered By CC | 360mm XO-1 GT |

  3. #3
    RC Turnbuckle Jr. 87 GN's Avatar
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    that low of a kv motor you will need to gear it up a bit....
    +1 20/54 is a good start. I would have to play with the gearing chart to be sure tho.....
    Would you go flip my truck back over??

  4. #4
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    ok, thanks I'll start with those gears and see what i get.

  5. #5
    RC Turnbuckle Jr. 87 GN's Avatar
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    I came up with 2/3s 1580kv 21/54 = 45.89 mph...

    Spur/Pinion Reduction Ratio = 2.57 : 1


    Diff ratio

    4s = 40 mph
    5s = 50 mph
    6s = 60 mph

    change the cell count, spur & pinion count, & tire size.


    BrianG speed chart:

    http://www.scriptasylum.com/rc_speed/top_speed.html

    Import this:

    Differential Ratio: 2.8461538461538463
    Transmission Ratio: 1.8333333333333333
    Other Ratio: 1
    Spur Tooth Count: 54
    Pinion Tooth Count: 21
    Total Voltage: 22.20
    Motor KV: 2200
    Tire Diameter (inches): 5.9
    Tire Ballooning (inches): 0
    Motor Current Draw: 0
    Motor Coil Resistance: 0.006
    Spur/Pinion Ratio: 3 : 1
    Total Ratio: 15.65385 : 1
    Tire Circumference (inches): 18.54 inches (470.8 mm)
    Rollout: 1.18:1
    Total Motor Speed: 48840 RPM
    Vehicle Speed: 54.76 mph (87.97 km/h)
    Effective KV Value: 2200
    KT constant: 0.61 oz-in/
    Would you go flip my truck back over??

  6. #6
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    its the 1650kv

  7. #7
    RC Turnbuckle Jr. 87 GN's Avatar
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    OOOoo Yea Castle use to make the 1580, Brian has it in the motor options...
    Would you go flip my truck back over??

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