If Stutz, Franklin and Duesenberg can do it, then why don’t we? Supercharge the Graham. Graham’s supercharger was conceived by Assistant Chief Engineer F.F. Kishline, who just happened to be a close friend of Fred Schwitzer of Schwitzer-Cummins.
Between them, they created a more reliable, lower- speed blower that gave the Graham a 40% horse power boost, allowing excellent mid-range acceleration, smoother engine operation and fuel economy. It also helped sales increase to 16,000 and then 19,000 in 1936 (of which one third were supercharged), but that was not enough to make Graham profitable.