[Dustin]

With round pistons, there is no extra force for the air to be sucked/forced into the motor, besides turbo/supercharging. With an oval piston, the force of the crank will use a larger surface area to seal the chamber. The pistons are more efficient to draw the air/fuel mix into the motor, like a straw. Thats all a motor is right, an air compressor with an internal power source??? The motor would be longer but skinny, so it could fit a datsun 300z with ease. What till you hear about my crankless motor and turbine injection. By the way, oval pistons were actually used in racing motorcycle engines.

you need to get together with himile, im sure you could both make some interesting ideas.