The beloved Bobby Unser, three-time Indy 500 winner, shares tales of being part of the first crop of drivers to use turbocharged Offenhauser engines at the 1966 Indy 500, the rapid evolution of turbos by 1968 that led him to Victory Lane, and a few more stories of qualifying at Indy with 1100hp while driving for Dan Gurney and fiery stories of racing for Roger Penske. 

Uncle Bobby, in all of his yarn-spinning splendor, talks Indy 500 technology while spilling dirt...who could ask for more?

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