Questions on this Hacker motor.
 

I am looking at giving a Hacker E40-18.5T motor a try in my crawler. I am want to run a 3s lipo with aprox. 2-3A rating. Hacker's website says to use 4-8 NiMh or 2s lipo. Any ideas if a 3s lipo will kill it?

The stats per Hacker's website are

RPM/V: 2070
Operating Current: 20A
Peak watts: 210

Thanks for any help!

-JB

I don't think it would kill it, but the speed may be higher than desired. The motor's kV is designed for crawlers on 7.4, so try and get nearer to a max of 15318rpm (7.4 x 2070).

15318/11.1 = 1380kV would be more appropriate.

Unless of course, you are looking for more speed. In which case, there is no problem - other Hacker E40 motors are designed for over 40k rpm, 22977rpm won't kill it.