[E-Revonut]

+1 for the medusa, I have the 50mm 4800kv in a crt.5 and it pushes that around at 40MPH on 2s and only hits 125*F so I would think the 3300kv would do pretty good on 4s, I'm sure it'll get a bit warmer spinning faster but the crt.5 is 4wd and puts a good load on the motor. Best part is a Medusa is only a few bucks more than a Fiegao and around half as much as a Neu!