Making an Engine Out of Scrap

Mike,

A flywheel does not increase torque or power. All it does is to lengthen the time constant for the shaft speed to respond to a change in load.

A crankshaft needs some rotational inertia, otherwise it would speed up with every power pulse and slow down on every compression stroke. Hence, a flywheel. If the engine doesn't need a flywheel to run, there's not much point in adding one.

 

well that is technically correct of course marshmat,
Torque = Hp x 5252 / Rpm (5252 is a constant)
but the inertia would be what I think he really referrs to, most people think along those lines.

 

Does that mean that at 5252 rpm - 1 torque is equal to 1 hp