The Mamba and Tekin motors are a bit small for that car and burn out rather easily.
By far the best 2 motors I have tried in this car are the Wraith 7K (7000kv) and the Permax 400/4D (5200kv). The Permax runs much cooler and needs to be geared low to get the speed but it's a beast so it can take it.
I have ordered a JPerkins 9200kv motor but it hasn't arrived yet so cannot comment just yet but from what I ave read it seems it might be even more of a monster.
