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Thread: What pinion to run????

  1. #1
    Veteran sweetride4me's Avatar
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    What pinion to run????

    It's for my X1 CR buggy, 46t center spur, losi 2100kv motor, MMM V3 ESC, I'll be running two 30c 2650mah 4s zippy lipos in parrallel.... 14t sound right???

    Lito I'm looking for your first hand experience here
    -Chris

  2. #2
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    Differential Ratio: 3.3076923076923075
    Transmission Ratio: 1
    Other Ratio: 1
    Spur Tooth Count: 46
    Pinion Tooth Count: 14
    Total Voltage: 14.8
    Motor KV: 2100
    Tire Diameter (inches): 4.5
    Tire Ballooning (inches): .1
    Motor Current Draw: 0
    Motor Coil Resistance: 0
    Spur/Pinion Ratio: 3.29 : 1
    Total Ratio: 10.86813 : 1
    Tire Circumference (inches): 14.77 inches (375.04 mm)
    Rollout: 1.36:1
    Total Motor Speed: 31080 RPM
    Vehicle Speed: 39.99 mph (64.23 km/h)
    Effective KV Value: 2100
    KT constant: 0.64 oz-in/A
    Motor Torque: Amperage not specified...
    Final Torque: Amperage not specified...
    Final Power: Amperage not specified...

    40mph. Looks perfect for the track to me. IF my numbers are right. I made an educated guess at the Frnt and Rear diffs. Depending on size of the track. Pinion Speed
    10T 28.56 mph
    11T 31.42 mph
    12T 34.27 mph
    13T 37.13 mph
    14T 39.99 mph
    15T 42.84 mph
    16T 45.70 mph
    17T 48.55 mph
    18T 51.41 mph
    19T 54.27 mph
    20T 57.12 mph
    21T 59.98 mph
    22T 62.84 mph
    23T 65.69 mph
    24T 68.55 mph
    25T 71.40 mph

    HERE IS WHERE THIS CAN BE FOUND


  3. #3
    Veteran sweetride4me's Avatar
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    Thanks Zack
    -Chris

  4. #4
    Veteran george16's Avatar
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    Florida
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    I'm using 15T pinion on both buggies.
    Gmaxx
    VBS'ed Predator
    Supermaxx
    Revo 3.3
    Kyosho ST-RR
    Ofna CR1

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