Hi All,

I have just fitted a hobbywing 150A ESC and a 4465sl motor in an otherwise stock summit and im really pleased. 

The motor and ESC went in easily and when running on 4S LiPo the summit has about 50% more top end speed. It goes like a train!

Thanks to rotomoto for his thread which gave me the final push required to go this route -http://monster.traxxas.com/showthread.php?t=484204

Specs:

eZRun 150A ESC
Hobbywing 2000kv 4465sl motor
2 x Polyquest LiPo (PQ5000RXQ)
An otherwise stock summit