They are pretty darn fast. I have one that I polished the gears on and it is blistering fast. Most of my Magna Tractions eat up T-Jets but this one is a screamer. I think with a set of brass wheels on the front it will beat my magna traction lap time. I need to shave a little over a second off to do it.Tom has done a good job giving us a better car. T-Jet Man 
