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misan
On the other hand ...
if you add turns [of the same wire] you will increase the ampere-turns of the windings (as you mentioned) and that will give you more torque but it will reduce the max speed.Quote
dc42
If you add turns, you have to use thinner wire to fit the extra turns in...
True; but adding more turns means increasing the motor size to get more winding area (unless you started with a winding area that was only partially filled, which would be silly). And it will only reduce the max speed if you can't increase the drive voltage to compensate for the additional back emf.