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Goodyear Fast Facts – Daytona / Gateway


NASCAR Cup Series — Race No. 26 – 160 laps / 400 miles
NASCAR Xfinity Series — Race No. 22 – 100 laps / 250 miles
Daytona International Speedway (2.5-mile oval) – Daytona Beach, Fla.Fast Facts for August 28-29, 2020

Tire: Goodyear Eagle Superspeedway Radials

Set limits:
Cup: 7 sets for the race
Xfinity: 4 sets for the race

Tire Codes:
Left-side — D-4888;
Right-side — D-4890

Tire Circumference:
Left-side — 2,232 mm (87.87 in.);
Right-side — 2,250 mm (88.58 in.)

Minimum Recommended Inflation:
Left Front — 26 psi; Left Rear — 26 psi;
Right Front — 50 psi; Right Rear — 48 psi

Storyline – Mechanical grip important in Daytona’s "dirty" air: On superspeedways like Daytona International Speedway, cars race around the two-and-a-half miles within inches of each other. That makes the mechanical grip of the tires important in giving the cars stability to race in such close quarters as the buffet around in the "dirty" air. Goodyear refined its tread compounds on both sides of the car to offer more grip at Daytona in July 2017, and then updated the constructions on both sides to be more like what is run at intermediate tracks last July. Teams in the Cup Series began running this tire set-up in July 2019, with the Xfinity Series aligning with that this February.

"Having mechanical grip in the tires gives the cars the needed stability with the tight-style racing we see at Daytona," said Greg Stucker, Goodyear’s director of racing. "We build in mechanical grip with the tread compounds we choose. We fine-tuned that choice for Daytona in 2017 and then followed up with a test the day after the 2019 Daytona 500, which led us to updating the constructions of the tires in this set-up as well. Those constructions added a little more stagger to this set-up, which also enhances the handling of the cars through the corners."

Notes – Cup, Xfinity return to Daytona on February tire set-up: Teams in the NASCAR Cup and Xfinity Series will run the same tire set-up at Daytona this week . . . this is the same combination of left- and right-side tires that these teams ran at Daytona in February . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Daytona . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

NASCAR Gander RV & Outdoors Truck Series – Race No. 14 – 160 laps / 200 miles
World Wide Technology Raceway at Gateway (1.25-mile oval) – Madison, Ill.
Fast Facts for August 30, 2020

Tire: Goodyear Eagle Intermediate Radials

Set limits: 4 sets for the race

Tire Codes:
Left-side — D-4964;
Right-side — D-4966

Tire Circumference:
Left-side — 2,218 mm (87.32 in.);
Right-side — 2,242 mm (88.27 in.)

Minimum Recommended Inflation:
Left Front — 14 psi; Left Rear — 14 psi;
Right Front — 31 psi; Right Rear — 28 psi

Notes – New tire set-up for Trucks at Gateway: This is the first time teams in the NASCAR Gander RV & Outdoors Truck Series have run this tire set-up at Gateway . . . this is the same combination of left- and right-side tires other NASCAR teams have run at New Hampshire (Cup) and Phoenix (Cup & Xfinity) in 2020 . . . Truck teams will also run this same tire set-up at Richmond next month and at Phoenix in November . . . compared to what was run at Gateway last year, this tire set-up features a compound change on both sides of the truck for more grip and wear, and a construction update on the left-side . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Gateway . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

— Goodyear Racing —