Originally Posted by
fredswain
I wouldn't assume that one is sensored and another not based on how they are rated. The turn vs kv numbers really don't correlate. Take the Hobbywing XERun sensored motors as an example. Their 8.5T is 4000kv and their 10.5T is 3200kv. Their nonsensored EZRun are rated the same. Now let's go over to Trinity with their Duo 3 motors. Their 10.5T is 4300kv. That's more than the 8.5T sensored XERun motor. Their 13.5T is 3600kv which is more than the XERun 10.5T.
kv is the most important number. Use the turn ratings as guidelines but look at kv for a better idea on how fast that motor will be, sensored or otherwise.
KV is just a measure of RPM, not power, and power is what makes cars fast.
It's dangerous to assume that more KV means a more powerful motor. Turns are what matters in a sensored racing motor.
Some motors have more advance built in than others so might seem quicker in a blinky class (there is not much in it even then), but that is not because they have a higher KV, but because they generate a little more power (at the expense of efficiency). In mod class or boosted class the motor you start with hardly matters - if anything, the advanced timing models are more of a hassle than an advantage.