Originally Posted by
eR1c
TCS rules allow brushless 21.5t motors, yes many of us and certainly those who race their minis like I do run a brushless and lipo battery setup.
I am using a Revtech Killshot "High RPM" 21.5t motor w/ a speed passion esc and shorty pack 2s battery (4500mah and 90c).
Some guys switch out motors depending on the track, shorter track w/ more turns you may want to try a high torque motor for quick start/stop acceleration. Whereas a longer track you may want to go w/ a high rpm motor for higher top speeds. The differences are sublte but very noticeable in a race setting w/ other drivers of equal skill.
That's a really good motor combo and I've run it extensively. Now these are subjective, but it's not the smoothest driving motor cause the motor comes in suddenly. When you get near the top edge of advance, monitor your motor temps.
Presently though, I'm running the R1 motor cause for pure revs, I believe it's King. The motor is smoother than a Killshot and is not as touchy on temps. By that I mean the performance doesn't seem to drop off with a higher temp. Obviously, it's never wise to routinely over heat a motor, but I've done that with my R1. For full disclosure though, I started with this motor from the prototype stage and watched the motor being developed, so may be a little prejudiced.
Post is not just for you, but for anyone shopping for a 21.5