LtDoc

Rating ESCs by the number of turns a motor has is one of the silliest things 'they've ever done. It doesn't really tell you what the ESC's capabilities are. The number of turns in a motor also doesn't tell you anything useful. Of course, it cuts down on the 'other' stuff you'd need to utilize 'real' numbers such as current draw, etc. As in a meter capable of measuring that stuff, and knowing how to use it. The only useful part of an ESC rated like that is to remember that the limits manufacturers put on the ESC in this way are just that. It's always better to stay away from the 'limits' if you're worried about expense. Working at the 'limit' is pushing things. That works some times, but not always. 'Luck' has a lot to do with it.
Electrical stuff.
The number of turns in a motor; less means 'hotter' and usually faster. More means not as fast, and sometimes more powerful (torgue).
The number of poles in a motor; less means more 'jerky', more means 'smoother' and more torgue.
A battery's Ah or mAh rating is the same as the fuel guage in gallons, shows how much 'milage' you can get. Bigger usually means longer running and more weight.
Voltage equates to horse power, sort of. The limiting factor is how much the rest of the electrical system can handle.
Interference from electrical pulses means you ought to put a capacitor across the poles of the motor, and one from each pole to ground (motor case). Doesn't stop interference completely but it certainly does cut it down.
That doesn't cover everything by any means but are some of the things you should keepin mind.
Good luck.
- 'Doc