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A new 2.2 liter SOHC four cylinder engine was designed and developed for Chrysler Corporation FWD vehicles. The overall design and many of the specific features have been selected to favor the FWD installation. This paper describes the design characteristics of the major parts and discusses many of the significant development items. In providing this new engine emphasis was placed on performance, fuel economy, emissions, durability, minimum weight, package size, serviceability, and manufacturing. Extensive testing, including initial production engines, has verified that the program objectives have been achieved.

The Chrysler Corp. turbine car heater features an “instant heat” gas-to-air heat exchanger in which fresh air is heated by hot gases from the turbine instead of by hot water. The “weather jet” forced air heating and ventilating system, utilizing an axial blower, is another feature of the turbine comfort conditioning system. This paper describes the design of the heat exchanger, hot gas heater temperature control valve, and pressure heating and ventilating controls.

A new method for measuring fuel-air ratio from vehicle exhaust gas has been developed which gives quick and accurate results on both lean and rich mixtures. The method is based on measurement of exhaust gas components using nondispersive infrared and polarographic analyzers.

The rapid expansion of the superhighway systems will result in a much larger percentage of car operation at sustained high speed. Car components associated with performance, convenience, and comfort have a significant effect on fuel economy during city traffic operation and on the congested highways of the past. On modern superhighways these components have a small effect on fuel economy. The major factor in high speed fuel economy is car size.

A new 273 cu in. V-8 engine for use in the Plymouth Valiant and Dodge Dart car lines is described. It combines increased smoothness and performance with the maneuverability characteristics of a compact car. This paper describes the design features of this engine and reviews briefly the factors which provide the engine with a high level of reliability and performance.

“In-car” measurement of vehicle loads and stresses is a basic step in solving fatigue design problems associated with passenger cars. The application includes measuring systems and techniques for evaluating fatigue design problems related to energy-absorbing steering columns and automotive gas turbines.

This paper reviews automatic speed control progress covering the earlier buzzers and throttle holders and explores the operation and function of the true speed control which automatically operates the throttle to maintain a preset car speed under varying conditions of wind, grade, and load. The basic anatomy of the automatic speed control, which consists of the manual control system, the car speed sensor, the “brain,” the power unit, and the disengagers is described. Automatic relatch and resume-speed features are also treated, as are accuracy, safety, and fuel economy aspects of these devices. Discussion of recent trends in low cost vacuum controls with simplfied button operation completes the paper.

This paper covers the design and development of a family of engines used for closed circuit track competition and acceleration trail competition. In addition, a detuned version of the engine suitable for normal street and highway driving is described. All these engines share a hemispherical combustion chamber using push rod operated valves.