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  1. #1
    RC Qualifier broitsseth's Avatar
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    550 vs 540 or 370 vs 380

    hey guys,i didint seem to find much of an answer when searching but what is the difference between a 540 motor and a 550 or a 370 and 380?
    is it just the size of the case of the motor or are they truly different?
    cool ain't cheap -Dan Dreger

  2. #2
    RC Turnbuckle Jr. Nitronaught's Avatar
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    A 540 has a 54mm can, a 380 has a 38mm can, etc. There's going to be differences but if you are looking at power it would be based on their KV rating I believe (says the Nitro guy)...
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  3. #3
    RC Qualifier broitsseth's Avatar
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    so if they where the same kv would they perform the same?

    also traxxas has 5 different 540/550 motors:

    https://traxxas.com/products/parts/motors/stinger

    https://traxxas.com/products/parts/motors/titan12t

    https://traxxas.com/products/parts/1585

    https://traxxas.com/products/parts/motors/titan550

    https://traxxas.com/products/parts/3975R

    if we where to compair them,how different would all of them be if they all where geared the same way in a 2wd slash (lets just pretend the reverse rotation one is switched using a switch on the controller)
    what motor would be fastest?
    what motor would have the most toque?
    cool ain't cheap -Dan Dreger

  4. #4
    RC Turnbuckle Jr. Jimdog's Avatar
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    The larger the can the more torque in general. And the more surface area for cooling. Bigger can usually means more power. Of course rotors make a difference too. Stronger magnets mean more torque and lower kv. And rotor length and diameter change stuff. More poles means more torque and lower kv. And there are also turns. Less turns is more kv and overall power. Then there's how the turns are wound. Then timing and sensors get thrown in and those change things. Operating voltage is a big one too. I know I'm missing stuff but this at least shows how difficult comparing motors can be.

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