Hey 02, Ya my PC went south so I picked up a new Dell, so anyway as I was saying the Wasp .18 totally rocks, not sure what the top speed is but I can say that the engine it's self is well built and easy to tune. For the price you cant go wrong. I would suggest that you pull your tranny and install bearings and good diff. balls, replace the brake adapter with a metal one the plastic one wont last long. Get the best drive pins you can find because that engine well spin the heck out of those wheels, Lots of luck buddy, RED