Originally Posted by Fulltimer
The Sachs 303 has 303cc and 19hp. If someone put that on a bike they would have to have a pilots license! It would have a decidedly cool factor though!!
Well,,,, putting a huge engine on a bicycle isn't a totally
idiotic idea, if you use an intake restrictor plate. And you might need a hefty flywheel on there to smooth out the engine, since it's going to spend a lot of time puttering on its lower-end.
The benefit is that you still get most of the engine's low-end torque.
The drawback is the bigger engine's weight
The 35cc Robin/Subaru 4-stroke I had was about 8.5 lbs.
A Briggs & Stratton Vanguard v-twin (16 hp normally) weighs about 75 lbs,,, + the flywheel you added....