... Comparison of Dimension1981087Development of Toyota 1ZZ-FE EngineShoji Adachi, Kimihide Horio, Yoshikatsu Nakamura,Kazuo Nakano and Akihito Tanke Toyota Motor Corp.Copyright © 1998 Society ... relationshipbetween the bore and stroke ratio and the specific fuelconsumption of ten different Toyota engine models. In theestimate, the compression ratio, the L/R ratio ( the ratio ofconnecting ... for the automotive engine is toreduce the emission of carbon dioxide by improving fueleconomy. Toyota has already introduced lean burnengines, a direct injection gasoline engine and other fuelefficient...