Firestone Racing has not yet reached a conclusion about what caused the tire deflations that cost Helio Castroneves and Juan Montoya a shot at victory in Phoenix last Saturday night. The Team Penske-Chevrolets of polesitter Castroneves in the first stint and Montoya in the second stint were leading when their right-front tires let go, obliging a slow lap and an extra pit stop. The pair raced their way back to finish 11th and ninth, respectively. Dale Harrigle, Bridgestone Americas’ chief engineer and manager of race tire development, told Motorsport.com: “Unfortunately at this moment, we cannot confirm anything. “All the right-side tires used in the race are on their way back to our...
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