Oh, the above recommendations are for a buggy. For a truggy, I'd go with a 1515 can motor. A 2.5d (1700kv) or 1Y (2200kv). For a truck with no slipper, I think I'd recommend the 2.5d. I run the 2.5d in my trucks and it runs very nicely on the track on 4S. If I want to get nuts, I can go to 5S or 6S and everything still runs relatively cool. I also run the 22418 in my trucks.