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Show more satisfactorily than would be possible with a radically high-speed, high-compression motor. Its power, smoothness and flexibility flexibili-ty are remarkable for its size and weight. The Model A motor developes 40 brake horsepower at 2200 revolutions revolu-tions per minute. In accounting for this performance credit must be given to the following improvements: An induction system which permits a better and more uniform flow of air and fuel to the combustion chamber; redisigned valve and combustion chamber which give higher, more uniform uni-form power impulses; lighter but stronger reciprocating parts and increased in-creased bearing sizes which result in sturdier cosntruction and consequently consequent-ly smoother operation; newly designed design-ed hot-spot manifold gives unusually efficient carburetion and there is also improved timing. The combination of these features has produced a motor that gives unusual un-usual speed and power for its size and weight and at the same time one that, is long-wearing, economical in fuel consumption and simple to operate op-erate and maintain. Because of its comparatively low speed it does not work the self-destruction that comes as a natural result of wear when moving parts are operated at the higher rate of speed, and yet it has considerably more power, speed, smoothness and flexibility than the low-speed motors. New Ford Engine Construction The engine of the new Model A Ford car represents one of the most remarkable engineering accomplishments accomplish-ments in the history of automotive development. While not radically : new in principle or design, it repre-: repre-: sents a new combination of engineer-I engineer-I ing principles which has produced I the best tested performance features i of the older types of automobile 1 engines with the most important . features of the newer types. Without abandoning entirely the j principles of the old low-compression, I low-speed motors in favor of the extremely ex-tremely high-speed, high-compression type, Ford engineers have developed a medium speed, medium-compression 1 motor that has proved itself much ' better adapted to the needs of a light car. A wide variety of uses under all sorts of road conditions and in widely wide-ly varying climates are thus served |