I have a losi xxx-nt and i race on a dirt oval. i need a new motor, but im unsure of what to get. the good thing is. there is no rules so i dont matter which one i get. i wanna spend about 200 or so, and iam concerned with run time. we run 4-5 minute races and i dont wanna run out of gas. also i think torque would be better than hp too since im just on an oval? but i want your guys' suggestions. thanks