All three NASCAR national series are in action this weekend at Texas Motor Speedway. Teams in all three series will use the same tires codes.
Sprint Cup teams will be given five sets of tires for practice and qualifying and 12 sets for the AAA Texas 500.
Xfinity Series teams will be given eight sets of tires for the weekend. Camping World Truck Series teams will be given six sets.
Tire Codes: Left-side — D-4684; Right-side — D-4686.
Tire Circumference: Left-side — 87.24 in. (2,216 mm); Right-side — 88.35 in. (2,244 mm).
Minimum Recommended Inflation (Sprint Cup): Left Front — 19 psi; Left Rear — 19 psi; Right Front — 53 psi; Right Rear — 49 psi.
Minimum Recommended Inflation (Truck): Left Front — 21 psi; Left Rear — 19 psi; Right Front — 53 psi; Right Rear — 49 psi.
Teams in all three series ran this same tire setup at Chicagoland earlier this season and will run it again at Homestead in two weeks. In both the Sprint Cup and Truck Series, this is the same combination of left and right-side tires they ran at Texas earlier this season.
This right-side tire code (D-4686) employs Goodyear’s multi-zone tread technology, which combines two distinct tread compounds on the same tire — the outboard 10 inches of the tread (Traction Zone) features a compound that is designed for grip, while the inboard two inches of the tread (Endurance Zone) is toughened to enhance durability on the part of the tire sees the most heat and takes the most abuse.
As on all NASCAR ovals larger than a mile in length, teams are required to run inner liners in all four tires at Texas. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
Kyle Busch isn’t afraid to speak his mind, and he certainly did so after Saturday’s Xfinity Series race at Indianapolis Motor Speedway.
NASCAR implemented a number of changes to make the racing closer, tighter and more exciting — including restrictor plates, a larger rear spoiler, aero ducts, and a smaller splitter — and achieved all that on many fronts.
But not for the younger Busch brother, who wasn’t pleased with the rules package. Was it actually designed to specifically slow him down rather than to even out things for the entire field?
Or was he just simply upset because he didn’t win a third Xfinity race in a row at IMS?
Check out how our NASCAR America analysts gauged the Xfinity changes in the above video.
Mark Smith, owner of TriStar Motorsports, died Saturday at his home, after a long battle with cancer, the team announced Monday. He was 63.
He began his racing career building engines for his brother Jack’s drag car in the 1970s. He moved his family from the West Coast in the early 1990s to pursue a career in NASCAR. He was the owner of TriStar Motorsports and Pro Motor Engines.
TriStar Motorsports fields the No. 14 in the Xfinty Series with JJ Yeley and the No. 72 in the Cup Series with Cole Whitt. The team stated the team will continue operations under the management of Bryan Smith, son of Mark Smith.
“It was dad’s dream to own and operate a NASCAR team,” Bryan Smith said. “He devoted his life to that dream and his family plans to honor his wishes by continuing our efforts in his memory.”
In lieu of flowers, the family asks that donations be made to Victory Junction Gang victoryjunction.org or NOVA (National Organization for Vehicle Access, part of the BraunAbility) novafunding.org.
The family will receive friends from 5-8 p.m. ET, Aug. 1 at Cavin-Cook Funeral Home, Mooresville, North Carolina. They have created a Facebook page where you are encouraged to leave a story for the family to enjoy. (facebook.com/Remembering-Mark-Smith-301261653675224)
Given how wild the Brickyard 400 played out, the big wreck between race leaders Kyle Busch and Martin Truex Jr. wasn’t exactly surprising.
Rather, with the way the race transpired from the opening lap, was the Busch/Truex wreck almost inevitable?
Truex got loose and washed up into the left rear of Busch’s car, sending both drivers and their respective cars into the outside retaining walls, hitting hard and ending their respective days.
Check out what our NASCAR America analysts had to say about the wreck from Monday’s show in the above video.
On Monday’s edition of NASCAR America, Dale Earnhardt Jr. — who will become part of our NBC Sports Group in 2018 — looked back on a wild and intense Brickyard 400.
Earnhardt was one of several drivers whose day came to an early ending — in Junior’s case when he ran into the back of Trevor Bayne‘s car, destroying his radiator in the process.
All the mayhem and mishaps could be linked to over-aggressive driving, Earnhardt said, saying that every driver was in “attack mode,” especially on restarts.
Check out Junior in the video above.