NASCAR Cup Series — Race No. 30 – 267 laps / 400.5 miles
Las Vegas Motor Speedway (1.5-mile oval) – Las Vegas, Nev.
Fast Facts for September 27, 2020
Tire:
Goodyear Eagle Speedway Radialsxfigood
Set limits:
Cup: 9 sets for the race
Tire Codes:
Left-side — D-4976
Right-side — D-4986
Tire Circumference:
Left-side — 2,224 mm (87.56 in.)
Right-side — 2,252 mm (88.66 in.)
Minimum Recommended Inflation:
Left Front — 19 psi; Left Rear — 19 psi
Right Front — 52 psi; Right Rear — 48 psi
Storyline – Goodyear tweaks right-side compound for Cup cars at Las Vegas: During the 2020 race season, with less on-track time and limited testing, the only real data gathering opportunities are the scheduled races. Goodyear Racing has taken that information, of which driver/team feedback is a key component, from the early races and made a change to the right-side tread compound to be run at Las Vegas, Kansas and Texas. The new D-4986 right-side tire to be run this week is designed to give the cars more grip on these three low-tire-wear tracks. The enhanced grip will be important to the drivers, but the other factor on these tracks is introducing enough tire wear. Wear is important to the performance of the tire because it allows it to shed rubber and manage temperatures.
“Key to making the optimum tire recommendation is the review of all the data that is generated, whether it be from practices throughout a weekend, testing, or as is the only opportunity right now, from the actual races,” said Greg Stucker, Goodyear’s director of racing. “What we’ve seen and heard at several of the low-wear tracks, is the Cup cars could stand to have a little more grip, so we have made a step in that direction for Las Vegas, as well as Kansas and Texas. Vegas and Texas shared the same tire set-up at their earlier races, and we brought that same right-side to Kansas as well, so they have been basically aligned all season. They remain so with this new right-side as we enhance the grip level at all three.”
Notes – New right-side tire for Cup cars at Las Vegas: While teams in all three of NASCAR’s national series will run the same left-side tire code at Las Vegas, the Cup cars will run a different right-side than the Xfinity cars and Gander RV & Outdoors Trucks . . . this is the same left-side tire code Cup teams ran at Las Vegas in February, but with a new right-side code . . . compared to what was run at Las Vegas earlier this year, this right-side tire features a compound change to give the cars more grip . . . as on all NASCAR ovals greater than one mile in length, teams are required to run liners in all four tire positions at Las Vegas . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
NASCAR Xfinity Series — Race No. 27 – 200 laps / 300 miles
NASCAR Gander RV & Outdoors Truck Series – Race No. 19 – 134 laps / 201 miles
Las Vegas Motor Speedway (1.5-mile oval) – Las Vegas, Nev.
Fast Facts for September 25-26, 2020
Tire:
Goodyear Eagle Speedway Radials
Set limits:
Xfinity: 5 sets for the race
Truck: 5 sets for the race
Tire Codes:
Left-side — D-4976
Right-side — D-4978
Tire Circumference:
Left-side — 2,224 mm (87.56 in.)
Right-side — 2,252 mm (88.66 in.)
Minimum Recommended Inflation:
Left Front — 19 psi; Left Rear — 19 psi
Right Front — 52 psi; Right Rear — 48 psi
Notes – Xfinity, Truck return to Las Vegas on popular tire set-up: While teams in all three of NASCAR’s national series will run the same left-side tire code at Las Vegas, the Xfinity cars and Gander RV & Outdoors Trucks will run a different right-side than the Cup cars . . . this is the same combination of left- and right-side tires that Xfinity and Truck teams ran at Las Vegas in February . . . they have also run this same tire set-up at Kentucky (both series), Michigan (Truck) and Texas (both series) in 2020 . . . as on all NASCAR ovals greater than one mile in length, teams are required to run liners in all four tire positions at Las Vegas . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
— Goodyear Racing —