Hey Jez 33

It had been done, i even looked into it myself. The difficult part will be finding gears that will work. My Rc car gears, for example, would skip 1-2 times on the main gear. It will also have to be geared very, very high. The crutch will also have to be modified. You could try contacting ballistectechnoligies and see if they will custon make a crutch/gears for the engine you would pick out. They usually deal with Corona upgrades so you will have to e-mail them.

Good Luck