Brushless B4

[Finnster]

5 min on 3700 in a light little B4 should be easy.

I would def go w/ the MMax over the Q80. If you really want a high eff motor you could look at the Neu's as well. I have a 380C-6L in my heavy rustler and I really like it as well, this could be an alternative to the 5700. Loads of Tq, fast spool and should easily do 40 mph in the B4 and give ~10 min run on 3700s.

You don't hear about these as much now the MMax systems have come out, but its not bc they are not great motors. The mamba have just kinda taken over everything since they are sold as a system.