simple simile: for real cars-it says you can do a 13.6 as a best in the 1/4 mile for a 350z.............that is a professional driving with multiple tries at it..........pretty much same goes for rc....it's capable of hitting 45 mph stock, but i doubt youd do that becasue that would be a very lean mixture that youd have to set it at and have the whole carb tuned perfectly.......but if you get an aftermarket aluminum pipe or a better cooling head then itll do it no problem!