RE: Thunder Cat 31 goes 30 mph?
My TC 31 hits 47 miles on my Bushnell gun, but it has all the mods in that loooong thread done to it and then some (lots of work inside the engine and header too). First of loose the stock prather 215 prop and get an Octura M445, that will get you some more miles. Like the rest says more nitro, I use 45% because I can`t get 60% around here.