All weekend, the Joe Gibbs Racing No. 11 driven by Denny Hamlin was off — speed was an issue.
But Hamlin definitely seemed to bounce back this afternoon at Indianapolis Motor Speedway — partially from a car that was getting better fuel mileage and partially from a slightly varied pitting schedule.
But it sounds like there might have been some other things that helped the Joe Gibbs Racing car out — namely a suspect firewall that gave the No. 11 extra downforce at Indianapolis
…air can flow through the firewall enabling the car to gain anywhere from 20 to 30 pounds of rear downforce.