Indianapolis 500 practice day #4 – Fast Friday – let’s turn up the boost!!

By Steve Wittich The 2.5-mile oval is open for practice for seven hours between 11 am and 6 pm. At 6:15 pm the traditional Indianapolis 500 Qualifying draw takes place to set Saturday’s qualifying order. The boost on the twin-turbo, direct inject V6 engines will have the boost increased from 130 kilopascals (kPA) to 140…

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