Monster Energy NASCAR Cup Series, Race No. 36 – Ford Ecoboost 400
NASCAR Xfinity Series, Race No. 33 – Ford Ecoboost 300
High Wear, High Drama on Tap at Homestead: As NASCAR crowns champions in its three national series this weekend, teams will be competing at Homestead-Miami Speedway, which has become one of the more high tire wear tracks on the circuit. High wear results in a greater amount of fall-off in lap times as a run goes on. That, in turn, brings in a driver’s ability to manage his tires and creates a climate for more comers and goers – drivers that work their tires harder early in a run vs. drivers that are easier on their tires and have more long run speed. That situation leads to more passing throughout the field and, coupled with Homestead’s layout and progressive banking, creates a great environment for competitive racing.
Notes: While teams in all three NASCAR series in action at Homestead this weekend will run the same right-side tire code, teams in the Cup and Xfinity Series will run a different left-side code than those in the Truck Series. This is a different tire set-up than they ran at Homestead last year, though they did run this exact combination of left- and right-side tires at Chicagoland and Fontana earlier this season.
Compared to Homestead last year, this left-side tire code (D-4650) features a compound change to give the cars more grip. While the right-side tire code (D-4746) features an updated construction (to align with other speedways) and new compounds in both the two-inch inboard Endurance Zone and the 10-inch outboard Traction Zone (to enhance grip).
On all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Homestead and the air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.