The reduction to practice of a stratified charge combustion system for automotive engines in the form of a bolt on competitive product was attempted in 1960 and 1961, as part of an all out company program aimed at smog elimination. The system and devices that resulted from this Walker Manufacturing Co. project showed promise as a fuel economy system, but in the end held little promise for smog reduction. Insights of Project Stratofire that led to definition changes, theory modifications, and finally to the project cancellation are set forth.
