ORIGINAL: pythonfan
A Hot Bodies Dirt Demon it's around 13-14lbs Hevy truck.
I race with Rc Monster Motor sports (
http://www.rcmonstermotorsports.com/ ).
You can use any motor over 21.
Theres people useing .32 .46 .50 .70 .28 .26x2
My LST2 is 13.5 Lbs and a 28 pushes it around just fine.