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Goodyear Fast Facts – New Hampshire

Monster Energy NASCAR Cup Series — Race No. 20 – Foxwoods Resort Casino 301
NASCAR Xfinity Series — Race No. 18 – ROXOR 200
New Hampshire Motor Speedway (1.058-mile oval) – Loudon, N.H.
Fast Facts for July 19-21, 2019

Tire: Goodyear Eagle Speedway Radials

Set limits:
Cup: 3 sets for practice, 1 set for qualifying and 9 sets for the race (8 race sets plus 1 set transferred from qualifying or practice);
Xfinity: 6 sets for the event

Tire Codes:
Left-side — D-4922
Right-side — D-4924

Tire Circumference:
Left-side — 2,226 mm (87.64 in.)
Right-side — 2,239 mm (88.15 in.)

Minimum Recommended Inflation:
Left Front — 12 psi; Left Rear — 12 psi;
Right Front — 30 psi; Right Rear — 27 psi

Storyline – Grip at a premium at New Hampshire: Having relatively little banking, New Hampshire Motor Speedway produces minimal load compared to more high-banked tracks. Because of that, grip needs to be generated through the compounds selected in Goodyear’s tire set-up. Both the left- and right-side compounds run at New Hampshire are among the highest performing in its tire lineup. Another factor is that teams look to gain grip in other ways, namely by going below Goodyear’s recommended air pressures. Low left-side pressures, which some teams have driven down into single digits, can cause the sidewall to over-deflect and damage the tire carcass to the point of air loss.

"For this week’s race at Loudon, we are running two new tire codes, with construction updates on both the left- and right-side, combined with the same tread compounds we ran here last year," said Greg Stucker, Goodyear’s director of racing. "Gaining grip is important at Loudon, so combining the higher downforce package the Cup teams are running this year with two of our more tractive tread compounds should make for good racing conditions. Loudon has very little banking, so some teams try to enhance their level of grip by getting aggressive with their air pressures, most notably on the left-side of the car. Our recommended left-side pressures at Loudon are 12 psi, and teams have been known to drop well below that in the race. Running below our recommendations are always a risk vs. reward proposition. Air pressure provides structure to a tire, and running too low risks the sidewall over-deflecting early-on in a run, which can lead to carcass fatigue and eventually an air loss."

Notes – Goodyear rolls in construction updates for both left- and right-side tires at New Hampshire: Teams in both the Monster Energy NASCAR Cup Series and NASCAR Xfinity Series will run the same combination of left- and right-side tires at New Hampshire this weekend . . . these are two new tire codes . . . compared to what was run at New Hampshire last season, both this left- and right-side tire feature construction updates to bring this set-up in line with what is run at other tracks . . . this is the only track at which teams in either of these series will run these two Goodyear tire codes . . . as on most NASCAR ovals one mile or less in length, teams will not run inner liners in their tires at New Hampshire.

— Goodyear Racing —