[MotoTiller]

Originally Posted by The Ring-In

I hadn't even considered that!

I wonder if there is any reason why I couldn't place multiple cats around an axle in the fashion of a radial engine. by having an uneven number of cats the engine may even be self starting.

Multiples might be a bit difficult to maintain, you will need to ensure that the lead cat is in heat and that the others are non neutered males for maximum power. For an extra boost catnip should do the trick but will require at least a 30 minute cooling down period afterwards.