[suicideneil]

Cripes, 1/5 scale is beyond the realms of my 'expertease' Im affraid. I know one thing though, 70mph gearing is way too much as a starting point, I cant see the electorincs liking that much, or the tires. If you cant lower the gearing with a larger spur/ smaller pinion, IO would cdoncider dropping the voltage, just for inital testing.

And hit up the other 1/5 scale builds, tons of info in those regarding gearing and whatnot (a 1/5 scale tranny may be needed to drop the gearing perhaps, rather than a straightforward center diff)...