look at the CMD MAC .21 , its as fast as pretty much any other motor out there in most respects. I just ran one in yesterday and it kept up with a JP B5 mod on the straights, it lacks a little on the bottom but i havent even tried a proper clutch setup yet and i never found myself needing more power to keep up with other buggies. I was VERY impressed seeing as it costs $159 with a spare crankshaft(crankshafts usually cost around $70). I own a v-spec as well and I can barely see a difference if any. It used to cost $330 but its on a clearance sale at the moment so basicly you get a top of the range racing mill for the price of something like an O.S RG or Hyper 8 port. If ur down on ur budget you must look at it because there is nothing better for that price. Go to www.cmdracing.com and call or email them to buy.