On road project...need a little help.

[suicideneil]

7700 x 9.9 = 76,230 rpms = you must be nuts or something.

3100 x 11.1 = 34,410rpms

3100 x 14.8 = 45,880rpms

I wouldnt like to guess the ideal rpm range for use with a smaller motor really, but I'd guess no more than 50,000rpms probably? Just gear accordingly to get you ideal speed, whatever that is.

A 5lb car can be ran by a cc36 motor for sure, but I'd be looking at a much lower kv and higher voltage for better efficiency and temps, say the ~5000kv motor with 3s lipo.