3900kv vs. 13.5t
im still new to all of this brushless stuff, anyhow i had a cc 3900kv motor in my 10th 2wd rc10b4 and recently installed a 13.5t because my local track is probally going to a 13.5 mtr limit for this class. the kv rating on the 13.5 motor says its 2500kv. the 13.5 has the same boost as the 3900kv but the top end speed is not even close to the 3900kv motor. should there be that big of a difference in the two? i upped the 22t pinion to a 24t w/ the same 81t spur.