[BrianG]

For a motor on a truggy, I'd go with a Neu 1515. Since you want to use cheaper lipos, I'd go with a 6s or even 7s setup and then choose a wind that goes along with that; like a 1515/2.5d (kv=1700). For cheaper lipos, you could go with Maxamps or TrueRC. Get something with around a 100A discharge rate.