William Tyler Jenkins (December 22, 1930 – March 29, 2012), nicknamed "Grumpy" or "The Grump", was an engine builder and drag racer. Between 1965 and 1975, he won a total of thirteen NHRA events. Most of these wins were won with a four-speed manual transmission. In 1972 he recorded 250 straight passes without missing a shift.He was formally trained as a mechanical engineer at Cornell University, although he completed only three years and did not earn a degree. He later used his training and skills to build engines. He has been inducted in numerous motorsports halls of fame for his engine building skills in the National Hot Rod Association (NHRA) Pro Stock class. His innovations include drag racing's first kickout oil pans, Pro Stock strut-style front suspension, and dry sump oiling system, and cool cans, electric water pump fan, gas port pistons, and slick-shift manual transmissions. Considered the "Father of Pro Stock", Jenkins-built engines were used to win five NHRA Pro Stock championships and three American Hot Rod Association (AHRA) championships.He was nicknamed "Grumpy" for having a no-nonsense attitude at races. The Motorsports Hall of Fame of America said: "his continual search for improved performance left little time for idle chatter with his racing colleagues." Source: Wikipedia (en)