motor_head

I did a quick search and came up with nothing. I'm looking for info and suggestions on what engine might work best in a 1/8th scale size project. So far my primary concern is over heating, considering a 4 stroke airplane motor is designed to have constant airflow. I'm also concerned with the weight to hp ratio being less than ideal. After minimal research my top pick is the OS FS-120, its physically bigger than I would like (5.5" tall) but seems to have the right rpm and power output (12k and 2.1 hp). Suggestions?

Goomba_7

iTrader: (5)

I read in another forum or another post on RCtech that the equivalent 4stroke size for a .21 buggy engine is approximately .46 size. As for cooling you're probably going to have to attach some kind of fan on the car, you could make it belt driven off of the flywheel or you could try an electric fan you just have to figure out how to power it.