Cummins ‘‘Diesel Special’’
(A Diesel race car)
The #28 Cummins Diesel Special IndyCar looked different from anything that had come before. It was built to take advantage of the 1952 Indy 500 race rules that allowed four-cycle diesel engines that were twice as big as their gasoline competition. To take full advantage of this, the #28 Cummins Diesel Special was packed with a turbocharged 6.6L inline-six diesel engine that was reported to make 380 hp.
