BorgWarner to supply IndyCar turbochargers
BorgWarner's Engineered for Racing (EFR) turbochargers introduce Gamma titanium-aluminide wheels, stainless-steel turbine housing and ceramic ball bearings. However, given that the EFR turbochargers were originally designed for performance enthusiasts, BorgWarner used weight-reduction techniques and end-housings to ensure racing-quality performance.
IndyCar hasn't allowed turbochargers since its separation from CART in 1996. The league decided to [copy CART/Champ Car in yet another area and] allow turbochargers to generate greater competition and enhance fuel economy.
The 2012 IndyCar engine manufacturers (Chevrolet, Honda and Lotus) can use or single- or twin-turbo arrangements.
BorgWarner has deep ties to IndyCar, and the trophy named for it has been the annual prize for the Indianapolis 500 race since 1936. The nearly five-foot-four-inch-tall sterling-silver trophy has the name, average speed, date of victory and portrait of every winner since 1911. AutoWeek