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Can I increase the torque of a dc electric motor by using a wider brush (cover 3 segments rather than 2)?

Can I increase the torque of a dc electric motor by using a wider brush (cover 3 segments rather than 2)? Voltage and load remain the same. Or how do you "hotrod" a dc motor?
Thanks
Ron

when you say "Voltage and load remain the same" are you talking about the current, or the mechanical load? if you have a current limited supply, then there will be no increase.
I suppose that, depending on the number of segments in the commutator, your idea may increase the torque some. But if if the motor can handle the extra heat that would be developed, it would probably be easier to just increase the voltage.
Since the extra winding you would be energizing would not be in the optimum location in the magnetic field, the gain will be limited .
If there are too few commutator segments, and you energize a coil that is in the totally wrong part of the field you could either get no gain or maybe even reduce the torque.

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