The power stroke in the Hot-Cylinder and the intake stroke (of the next cycle) in the Cold-Cylinder occur concurrently. Hence in a pair of Tour engine cylinders, two 4-stroke cycles are being executed at the same time. In this respect, the Tour engine and a conventional four-stroke twin engine have exactly the same number of power strokes per crankshaft revolution. For example, a conventional twin engine will have one power stroke in each cylinder, while the Tour engine will have two power strokes in the Hot-Cylinder and none in the Cold-Cylinder. The advantages of the split cycle approach will be discussed in detail below.