Not to hijack, but I've run the 4600 in a T4. Actually I've run them all in a T4. I liked the 4600 the best of all of the Mamba Max line of motors. Keeping in mind that I am not the best disciplined driver in the world, I found the 4600 to be the best on the track. It is very controllable and it is not lacking in power in terms of torque. It can also stand to be geared a bit more than the 5700. I also like the fact that I could throw in a 4S pack when I felt like getting crazy. The 4600 on 2S also runs very cool. IIRC, I ran mine on a maxamps 2S2P 8Ah pack.

I do have to qualify my opinions on the 4600 with regard to running it on the track. We have a very, very tight and technical track that is geared more toward 1/8 scale. The lanes on it aren't very wide either. I've seen videos of some of the tracks that other guysa are running across the country and our track's lane of travel is easily half as wide. It isn't wide at all, so control is very important, especially when passing.