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Goodyear Fast Facts — Daytona

Monster Energy NASCAR Cup Series — Race No. 18 – Coke Zero Sugar 400
Daytona International Speedway (2.5-mile oval) – Daytona Beach, Fla.
Fast Facts for July 4-6, 2019

Tire: Goodyear Eagle Speedway Radials

Set limits:
Cup: 2 sets for practice, 1 set for qualifying, 7 sets for the race
(6 race sets plus 1 set transferred from qualifying or practice)

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 (88.52 in.)

Minimum Recommended Inflation:
Left Front — 29 psi; Left Rear — 29 psi;
Right Front — 50 psi; Right Rear — 48 psi

Storyline – Early Daytona test yields results in couple areas: Goodyear held a tire test on the two days following this year’s Daytona 500, and that session provided fundamental knowledge in two areas.  First, it allowed Goodyear to get the Monster Energy NASCAR Cup cars on a tire construction that is more in line with what is run at the intermediate tracks.  Second, it allowed NASCAR the chance to get a look at the cars in the 2019 rules package and decide how to move forward at both Daytona and Talladega.

“Getting right back at Daytona after this year’s 500 in February was very useful to both Goodyear and NASCAR,” said Greg Stucker, Goodyear’s director of racing.  “The goal was to incorporate the basic elements of the 2019 rules package into the aerodynamic configuration for the superspeedways of Daytona and Talladega, so they are no longer unique in that perspective.  With that alignment established early in the test, we took the same approach to the tires.  The result was a tire combination with the same constructions we run at the intermediate tracks, married with the tread compounds run at Daytona in February.  Having such a great working relationship with NASCAR allows us to get a lot accomplished together at our tests that ultimately has a positive impact on what we all bring to the track and the quality of racing we put on for our fans.”

Notes – Cup cars get construction updates for Daytona: Teams in the Monster Energy NASCAR Cup Series will run a different tire set-up than those in the NASCAR Xfinity Series at Daytona this week . . . these are two new tire codes for the Cup cars . . . compared to what was run in the Daytona 500, both this left- and right-side tire feature construction updates to align this set-up with what is run at intermediate tracks . . . this tire set-up came out of a Goodyear test at Daytona on February 18-19 . . . teams (drivers) participating in that test were Richard Childress Racing (Daniel Hemric), Chip Ganassi Racing (Kyle Larson) and Hendrick Motorsports (Alex Bowman) . . . 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 Xfinity Series — Race No. 16 – Circle K Firecracker 250
Daytona International Speedway (2.5-mile oval) – Daytona Beach, Fla.
Fast Facts for July 4-5, 2019

Tire: Goodyear Eagle Superspeedway Radials

Set limits: Xfinity: 4 sets for the event

Tire Codes:
Left-side — D-4738;
Right-side — D-4740

Tire Circumference:
Left-side — 2,237 mm (88.07 in.);
Right-side — 2,247 mm (88.46 in.)

Minimum Recommended Inflation:
Left Front — 29 psi; Left Rear — 29 psi;
Right Front — 50 psi; Right Rear — 48 psi

Notes — Xfinity cars return to Daytona on same tire set-up as February race: Teams in the NASCAR Xfinity Series will run a different tire set-up than those in the Monster Energy NASCAR Cup Series at Daytona this week . . .. . . this is the same combination of left- and right-side tires that Xfinity teams have run at the Speedway since last July . . . 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.

— Goodyear Racing —