Man Jeff, that's a tough call. As you know, I'm about to bite the same bullet and order a Neu as well. I have decided that it's gonna be a 1515 1y/f for my 8T. As far as your buggy goes, it looked pretty close on top speed the couple of times I saw it run. This would indicate to me that using the same gearing you would want a similar kv motor to the 8XL. If AAngel is correct and there is minimal difference in torque between the 12's and 15's, the 1512 2.5/f would seem the obvious choice; a little hotter than the 8XL but more efficient. Of coarse, the 12 is a little less costly which is nice too. However, I would be worried that it would'nt be quite enough to run with the faster guys at our track. I think I'd rather get the 1515 1y and gear down, dial down and/or use more trigger control. Then again, I've been tryin to run with guys in S.A. that usually out drive me when we're heads up, nitro to nitro anyway. Hopefully this helps more than confusses. Like I said, Tough call! Too bad Neu does'nt make a 1900/kv 15 motor........................:027: