Brushless motor turn. What does this really mean?

[xdillonx]

I'm trying to get parts together to build my first 1/10 crawler. I am going the brushless route using 3S LiPo.

When looking at different motors, the Turn count seems to be the main class devisions. From some reading I see more turns, less KV & Watt rating.

A 21.5T motor is 85 watts, where the 18T is 130 watts. Does this mean the 18T is more powerful?

My main question is what is the 'real-world' comparison to a 21.5T motor and 18T motor

Thanks!
-Ryan

 

[Duuuuuuuude]

The higher the turn count, the lower the speed and power consumption. You will, however, gain more torque.

It is opposite for kv's though. More kv's = more speed. Basically it means rpms per volt.

3500kv = 3500 rpms per volt applied.

All of this applies to brushed motors as well, though you usually won't see a kv rating with them.

However, a 21t brushless motor is not the same as a 21t brushed. I forget how to do the math on that, but the brushless rating is typically slower than the brushed when counting turns.

 

[xdillonx]

Thanks for the tip.

But when the rubber hits the road, what kind of driving manners are to be expected with a 18.5 or 21.5 turn brushless motor?