> That conversion is done by a crankshaft and once a crankshaft is in the system ... you get diminished efficiency because you're only getting maximum shove for

> That conversion is done by a crankshaft and once a crankshaft is in the system ... you get diminished efficiency because you're only getting maximum shove force in the middle of the piston stroke. I don't think that's right. Why would diminished force when the piston is turning around lead to a power loss?