Diesel Indy Car 1952. Cummins Diesel

Clessie Cummins was quite an innovator, and quite a promotor, as well.

 
He had a pretty tumultuous relationship with his namesake company. When he invented the engine brake, the company thought they could do better in house, so he sold the rights to Jacobs Manufacturing, and "The Jake Brake" was born. Just recently, Cummins bought Jacobs Vehicle Systems, and it has gone full circle.

It's a shame that Cummins, as a company, has gone full-tilt WOKE madness.

 
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His memoir My Days With The Diesel, and his son, Lyle's bio, The Diesel Odyssey of Clessie Cummins are good reads.
$200 plus for the first book and $42 seems to be the lowest for the second. Hmm. At that price buy, read, and resell. 

 
Race #28 was returned to the Cummins factory in Columbus, Indiana where it was preserved. A restoration in 1968 revealed that the crankshaft had cracked and would have failed completely had the turbocharger issues not brought a halt to #28’s race. The racer was occasionally run for special events until 1999. In 2016, the Cummins Diesel Special underwent a restoration and was run for the first time since 1999. The racer is often displayed at the Cummins Museum and run on rare occasion at special events.

 
Another great book about Cummins, "The engine that could"

My family was very involve with Cummins from 1950 until my Fathers retirement in 2000.  My Grandfather opened/started the first distributorship west of the Rockies and owned it until 1972.  My Father worked in the LA office from 1966 until 2000.  As a kid I was always hanging in the shop.  

 
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