NASCAR Cup Series — Race No. 9 — 267 laps / 400.5 miles Texas Motor Speedway (1.5-mile oval) — Fort Worth, Tex.
Fast Facts for April 13-14, 2024
Tire: Goodyear Eagle 18-inch Speedway Radials
Set limits: Cup: 1 set for practice, 1 set for qualifying and 9 sets for the race (8 race sets plus 1 set transferred from qualifying)
Tire Codes: Left-side — D-5186; Right-side — D-5222
Tire Circumference: Left-side — 2,263 mm (89.09 in.); Right-side — 2,277 mm (89.65 in.)
Minimum Recommended Inflation: Left Front — 20 psi; Left Rear — 22 psi; Right Front — 50 psi; Right Rear — 46 psi
Storyline — Speeds will be up as Cup gets back to intermediate track: After a recent stretch of short track races, NASCAR Cup teams return to an intermediate speedway at Texas Motor Speedway this weekend. With that, speeds will be high and teams will be searching for grip to maximize that speed. One tuning tool that teams use is air pressure in the tires. Goodyear supplies teams with data that supports its minimum recommended pressure recommendations at each race. Going below those guidelines, along with geometry setting on the car, carries a risk of damaging a tire‘s sidewall due to over-deflection. Damaging a tire, especially early in a run before pressures are allowed to build, can harm the tire to the point of air loss.
“Speeds and loads will be high in this week‘s Cup race back on an intermediate track for the first time since early-March at Las Vegas,” said Greg Stucker, Goodyear‘s director of racing. “It‘s always a risk versus reward proposition with air pressure settings, balancing speed and durability. We always work with the teams to help them understand how the air and car settings like camber will affect the tires. In advance of an event we provide a lot of data based on various settings teams could run. Then, of course, we are at the track all weekend with our engineers keeping an eye of tire performance and consulting with teams based on what we see.”
Notes — Cup teams on new right-side tire at Texas: Being on 18-inch bead diameter tires, NASCAR Cup teams will run a different tire set-up than those in the Xfinity and Craftsman Truck Series at Texas this week . . . this is the same combination of left- and right-side tires these teams ran at Texas last September . . . Cup teams also ran this tire set-up at Las Vegas earlier this season and are scheduled to run it again at Kansas and Nashville later . . . with this 18-inch tire, and its lower profile sidewall, NASCAR Cup cars do not run inner liners in any of their tires.
NASCAR Xfinity Series — Race No. 8 — 200 laps / 300 miles NASCAR Craftsman Truck Series — Race No. 7 — 167 laps / 250.5 miles Texas Motor Speedway (1.5-mile oval) — Fort Worth, Tex.
Fast Facts for April 12-13, 2024
Tire: Goodyear Eagle 15-inch Speedway Radials
Set limits: Xfinity: 6 sets for the event; Craftsman Truck: 5 sets for the event
Tire Codes: Left-side — D-6110; Right-side — D-6112
Tire Circumference: Left-side — 2,225 mm (87.60 in.); Right-side — 2,250 mm (88.58 in.)
Minimum Recommended Inflation: Left Front — 19 psi; Left Rear — 19 psi; Right Front — 52 psi; Right Rear — 48 psi
Notes — Xfinity and Truck teams on tried-and-true Texas tire set-up: Being on 15-inch bead diameter tires, NASCAR Xfinity and Craftsman Truck Series teams will run a different tire set-up than those in the Cup Series at Texas this week . . . these teams are on the same combination of left- and right side tires they have run at this track since 2022 . . . teams in both of these series have run this same tire set-up at Las Vegas earlier this season, and are scheduled to run it again at Kansas later . . . as on all NASCAR ovals greater than one mile in length, Xfinity and Truck teams are required to run inner liners in all four tire positions at Texas . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
— Goodyear Racing —
