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Product development work in the foundry is helping the motor engineer to achieve his objectives with respect to reliability, performance, and cost. For example: V-8 cylinder block design modifications permit, the use of a unique coring concept that provides more accurate and cleaner castings; design parameters and laboratory testing techniques have been developed to optimize the design of cast crankshafts and connecting rods for outstanding reliability and manufacturing economy; and new laboratory testing techniques promise to expedite development of improved pistons.

This paper discusses the principles of battery ignition and then describes high-tension magneto ignition. A comparison between the two types of ignition is given, and the paper concludes by illustrating diagrammatically how and why a very hot spark causes the engine to produce more power and to economize on fuel consumption.