The 1982 GMI Supermileage Experience

GMI Engineering & Management Institute uses the SAE Supermileage Competition as a means of enhancing the design aspect of its engineering curriculum. The project is integrated into senior level courses and involves many students each year.

GMI’s 1982 effort emphasized maximizing engine efficiency via a re-designed combustion chamber, 12:1 compression ratio, and an overhead valve train. Chassis work centered upon minimum weight and drag losses. Official performance was 350 mpg. Engine starting difficulties and unforeseen chain drive reliability problems detracted from performance. Ambitious plans for 1983 include a complete new vehicle designed by 1982 veterans, and a re-designed version of GMI’s 1982 car implemented by a new crew.