KennyD, you're going to get as many recomendations as there people are people on this forum. I like the Orion Stock Elite because of the torque and because I don't want to take anything apart and mess with it if I don't have to. I just change the motor connector and go. I have one with a 20 tooth pinion, one with a 13 and one with a 9 and they all work great. I don't do drag racing, only road courses and my car is faster than most other Xmods I race and keeps up with most Mini-Zs just fine. It goes fast enough so that good technique will put it out front.