ORIGINAL: Nitro Rustler Racer
my bro got a torq 16 in his st. lots of torq and good for off-raoding
He is talking electric motors
I think the trinity speed gems would be perfect. They are great quality and retail for a bit less than $30 at tower hobbies. They have a whole range of turns to suit your needs. I have an 11t in my Evader bx and it absolutely flies.