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Goodyear Tire info for Kansas Speedway

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NASCAR heads to Kansas Speedway this weekend with the Cup and Camping World Truck Series competing at the 1.5-mile track.

While both series will have the same right-side tires, Cup and Truck teams will have their own distinct left-side tire codes.

Cup teams used the right-side tire code in both Kansas races last season and it’s unique to Kansas. The right-side tire is one of Goodyear’s multi-zone tread tires, with two tread compounds on the same tire – one on the inboard two inches for heat resistance (Endurance Zone) and one on the outboard 10 inches for grip (Traction Zone).

“These cars are running tremendous speeds and that, combined with the camber settings in the front end, generates a lot of heat in the tire, which shows up most on the inboard of the right-front,” said Greg Stucker, Goodyear’s director of racing in a press release. “Being able to protect that area with a more heat and wear resistant tread compound frees us up to give teams more grip with the outboard compound. As NASCAR moved to a lower downforce rules package over the past several seasons, we continued to talk to teams and evaluate performance to look at where we could improve grip. We feel like we made a nice step toward that at Kansas last season, and we return with the same tread compounds in 2018.”

This is the first time Cup teams have run this left-side tire code. Compared to what was run at Kansas last season, it features a construction update to bring it into line with what is run at other speedways. Cup teams will also run this left-side code at Charlotte Motor Speedway over the next two weeks.

Here’s the tire info for Cup

Set limits: Cup: Three sets for practice, one set for qualifying and eight sets for the race.

Tire Codes: Left-side — D-4788; Right-side — D-4720

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,252 mm (88.66 in.)

Minimum Recommended Inflation: Left Front — 22 psi; Left Rear — 22 psi; Right Front — 52 psi; Right Rear — 50 psi

 

Truck Series

This is the first time Truck teams have run either of these two Goodyear tire codes. Compared to what the Trucks ran at Kansas in 2017, this left-side code features a construction update to align with other speedways.

Set limits: Six sets for the event

Tire Codes: Left-side — D-4784; Right-side — D-4720

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,252 mm (88.66 in.)

Minimum Recommended Inflation: Left Front — 24 psi; Left Rear — 22 psi; Right Front — 52 psi; Right Rear — 50 psi

Denny Hamlin hopes teams don’t shoot selves in feet with pit guns

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Denny Hamlin is the hottest driver on the Cup circuit. He has two wins – including Saturday night at Bristol – as well as two runner-ups, and a third- and fifth-place finish in the last six races. He’s also moved up to third in the rankings in that string.

But Hamlin isn’t taking anything to chance, particularly some of the smallest details – such as loose lug nuts and wheels.

Hamlin appeared Monday on SiriusXM NASCAR Radio’s “On-Track” show and was asked about how not only his team, but also other Cup teams, can overcome the loose lug nuts and wheels issues.

Hamlin said a significant part of the problem – particularly at a place like Bristol Motor Speedway – is pit guns, which are allocated and issued in a pre-race lottery by NASCAR, rather than have teams use their own guns.

MORE: Denny Hamlin earns hard-fought win over Matt DiBenedetto at Bristol

Hamlin does not like that system and explained why:

“(Bristol) puts probably some of the biggest loads we have on our tires. Truth be told, over the last two years since we’ve had these guns issued to us, they’re not capable of getting all the wheels tight, they really aren’t.

“It’s a lottery whether you get a gun that’s good enough to get ‘em tight. Through JGR, Stewart-Haas and other teams that have documented it, in the spring race there were over 20 loose wheels. This is not just a team thing. It’s just that the equipment is not quite up to par as far as what it’s capable of.

“We keep track of all the guns and how good they are and how bad they are. It’s a lottery system of whether you’re going to get (a good or bad one). It doesn’t matter how fast you go, you can hold the gun on there and it’s just not going to get the torque quite tight enough.”

Hamlin experienced a loose wheel that forced him to pit under green on Lap 186 of Saturday night’s race at Bristol, leaving him two laps behind the leaders. Hamlin had another loose wheel on Lap 374 and pitted while running 10th.

Thus far this season, in addition to several loose wheels in races, Hamlin’s team has also been penalized four times for loose lug nuts after races: Fontana, Bristol spring race, Chicagoland and the July race at Pocono.

This isn’t the first time Hamlin has publicly complained about pit guns and loose lug nuts and wheels.

NBC Sports has reached out to NASCAR for comment.

Check out what Hamlin said about that after Saturday night’s race in the video above (Hamlin talks about this issue starting around the 6:00 mark).

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Preliminary entry lists for Xfinity, Trucks this weekend

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While the NASCAR Cup Series will be off this weekend, that doesn’t mean there won’t be any racing.

On the contrary, the Xfinity Series will be racing Saturday at Road America and the Truck Series will compete Sunday at Canadian Tire Motorsport Park.

Here are the entry lists for both series:

Xfinity – CTECH Manufacturing 180 (3 p.m. ET on NBCSN)

There are 39 cars entered.

Regan Smith will be in the No. 8 J.R. Motorsports Chevrolet.

A.J. Allmendinger will drive the No. 10 Kaulig Racing Chevrolet.

Saturday’s Cup runner-up, Matt DiBenedetto, will drive the No. 18 Joe Gibbs Racing Toyota.

There is no driver listed yet for the No. 117 Rick Ware Racing Chevrolet.

Click here for the entry list.

Trucks – Chevrolet Silverado 250 (2:30 p.m. ET FS1)

There are only 28 Trucks listed for the entry list.

All seats are filled.

Click here for the entry list.

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Dale Earnhardt Jr. thanks all who have ‘lifted us up’ since plane crash

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Dale Earnhardt Jr. issued his first public comments Monday since he and his family survived a plane crash last Thursday afternoon at Elizabethton (Tennessee) Municipal Airport.

Earnhardt offered thanks to “everyone who has lifted us up with phone calls, messages and prayer since last Thursday. We are truly blessed that all on board escaped with no serious injuries, including our daughter, our two pilots and our dog Gus.”

Earnhardt also thanked the pilots, emergency personnel, law enforcement and hospital staff.

He stated that wife “Amy and I continue to be very appreciative of the privacy extended to us to process everything. It has been important to do that together and on our own time.”

Earnhardt stated that because of the ongoing investigation “we will not be speculating or discussing the cause of the accident.”

A preliminary report from the National Transportation Safety Board is expected this week. Ralph Hicks, a senior investigator for the NTSB said in a briefing last Friday that “the airplane basically bounced at least twice before coming down hard on the right wing landing gear. You can actually see the right wing landing gear collapsing on the video (from nearby buildings). The airplane continued down the runway, off to the end, through a fence and came to a stop … on highway 91.”

Both pilots have been interviewed and Hicks stated that what they said was “very consistent” with what the video showed. Hicks also said investigators had talked to the Earnhardt family.

NASCAR America 6-7 p.m. ET on NBCSN: Recapping Hamlin’s Bristol win

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Today’s episode of NASCAR America airs on NBCSN at a special time, from 6-7 p.m. ET, and will recap Denny Hamlin’s win at Bristol.

Steve Letarte will be joined by NASCAR Hall of Famer Dale Jarrett and A.J. Allmendinger to discuss Hamlin’s win and other storylines.

If you can’t catch today’s show on TV, watch online at http:/nascarstream.nbcsports.com. If you plan to stream the show on your laptop or portable device, be sure to have your username and password from your cable/satellite/telco provider handy so your subscription can be verified.

Once you enter that information, you’ll have access to the stream.

Click here for the special start time at 6 p.m. ET to watch live via the stream.