My RC8Be was plenty fast on Gens Ace 4S batteries with an RX8 & 2050kV motor, almost too fast at the local track I'd visit every now and then. It was
ridiculously fast on 6S.

Never really a need to go that fast.
For my 8.2e, I'm going with 1400kV on 6S.
sorry for so many questions,
but i dont understand whats better about lower kv motors? is their anything better