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Goodyear tire info for Texas

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The Cup Series and Xfinity Series return to action this weekend at Texas Motor Speedway for the middle race in their respective Round of 8 playoffs.

The NASCAR Gander Outdoors Truck Series is off this weekend. Its Round of 6 playoff wraps up next week at Phoenix.

Both Cup and Xfinity cars will carry the same size and types of tires this weekend at the 1.5-mile high-speed oval. There will be one distinction – the left side tires will be different than the left side rubber that was raced at Texas back in late March.

Texas underwent a repave before the 2017 season. As a result, tire wear “poses several challenges,” according to Goodyear:

* Fresh asphalt has a lot of grip, which generates a lot of speed and heat in the tires.

* A new surface is relatively smooth and doesn’t allow tires to shed rubber, which could also cause heat problems.

* Because little rubber gets worked into the track, it is harder to create multiple racing grooves.

* The left-side tires feature a construction update similar to what has already been used at several tracks this season including Kansas, Kentucky, Las Vegas and Michigan.

As a result, Goodyear has designed right-side tires to wear more and run cooler. In addition, because the bottom lane is the preferred groove, the traction compound PJ1 will be applied above the bottom lane to create a viable second lane/groove.

Here is the tire information for this weekend’s races at Texas:

Tire: Goodyear Eagle Speedway Radials

Set limits: 3 sets for practice, 1 set for qualifying and 10 sets for the race (9 race sets plus 1 set transferred from qualifying or practice); Xfinity: 7 sets for the event.

Tire Codes: Left-side — D-4954; Right-side – D-4796.

Tire Circumference: Left-side — 2,225 mm (87.60 in.); Right-side – 2,251 mm (88.62 in.)

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

Notes: As on all NASCAR ovals greater than 1 mile in length, teams are required to run liners in all four tire positions at Texas. … Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Weather: According to wunderground.com, the forecast for Saturday night’s Xfinity race calls for a temperature of 52 degrees with a 0% chance of rain at the scheduled 8:30 p.m. ET start time (on NBCSN), and a temperature of 59 degrees with a 0% chance of rain at the scheduled 3 p.m. ET start time for Sunday’s Cup race on NBCSN.

Goodyear tire info for Dover

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The NASCAR Cup and NASCAR Xfinity Series playoffs move into high gear this weekend at Dover International Speedway.

The Cup Series moves into its second round, the Round of 12, after last Sunday’s elimination race at Charlotte Motor Speedway’s Roval.

The Xfinity Series, meanwhile, wraps up its first round of its own playoffs this Saturday.

As for the Goodyear tires that will be used this weekend, here’s the main storyline:

Before the current Cup season, two tracks posed the greatest concern for Goodyear from a tire perspective: Bristol Motor Speedway and Dover International Speedway. The main reason is NASCAR’s new, higher downforce aero package, coupled with 750 horsepower engines used on those tracks that have steep banking, create higher loads – most notably on the right-front tire.

That’s why Goodyear will work with teams this weekend to emphasize the importance of set-ups, particularly air pressures in the right-front tires.

Right-front durability at Dover is always on our radar because of the speeds and loads generated by these cars in the high-banked corners,” said Greg Stucker, Goodyear’s director of racing. “Our recommended air pressure on the right-front is 49 psi, and we will be talking to teams on the lead-up to this race and all weekend to impress upon them the importance of that.

We certainly understand that in the teams’ efforts to gain as much grip as possible, being aggressive on air pressures is one of the tools they use. To that end, we performed some additional simulation work based upon estimates of car performance now versus earlier in the year, and how that impacts both tire performance and durability. Our goal is to provide as much information as possible to make key set-up decisions, and tire pressures are an important part of those decisions.”

NOTES: Teams in both the Monster Energy NASCAR Cup and Xfinity Series will run the same tire set-up at Dover this weekend. This is the same combination of left- and right-side tires that these teams ran at this track in May. … Goodyear held a test (April 9) at Dover before the spring race. … Dover is unique among NASCAR ovals one mile or less in length, in that inner liners are required on all four tire positions. … Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here is the information for this weekend’s tires at Dover:

Tire: Goodyear Eagle Speedway Radials

Set limits: Cup: 3 sets for practice, 1 set for qualifying and 10 sets for the race (9 race sets plus 1 set transferred from qualifying or practice); Xfinity: 6 sets for the event

Tire Codes: Left-side -- D-4868; Right-side – D-4872

Tire Circumference: Left-side -- 2,227 mm (87.68 in.); Right-side -- 2,251 mm (88.62 in.)

Minimum Recommended Inflation: Left Front -- 19 psi; Left Rear -- 19 psi; Right Front -- 49 psi; Right Rear -- 45 psi

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Goodyear tire info for Bristol

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Vehicles in all three of NASCAR’s national series will carry the same tire sizes and compounds for this week’s three races at Bristol Motor Speedway.

One of the key storylines is the use of PJ1 traction compound, which is applied to a particular lane of a racetrack to give drivers an additional racing groove that is, in theory, equal to the preferred groove(s). At Bristol, the bottom lane is considered the preferred lane early in each race before the top lane becomes the preferred lane later on.

As a result, Bristol track officials will apply PJ1 to the bottom lane to give drivers an “equal” opportunity to move up or down to pass their competitors, according to this week’s Goodyear Racing media release.

“We have been working very closely with NASCAR and the tracks as the use of PJ1 has become more common on the circuit,” said Greg Stucker, Goodyear’s director of racing.  “We generally all come up with a plan, and then watch how things unfold over the weekend, also considering feedback from the drivers.

“After each day of the event, we run a friction trailer on all the lanes of the track to measure the traction level and how that changed since the beginning of that day. Then we determine if the PJ1 needs to be re-applied, whether the application patch should change at all and what the concentration level should be.

“The goal in all of this is to keep the grip level consistent throughout the weekend so teams know what racing conditions to expect. We, as an industry, are putting a lot of science behind this effort, with an end goal of improving the quality of racing for our fans.”

Here’s the tire info for all three races:

Tire: Goodyear Eagle Speedway Radials.

Set limits: Cup: Three sets for practice, one set for qualifying and nine sets for the race (eight race sets plus one set transferred from qualifying or practice); Xfinity: six sets for the event; Truck: five sets for the event.

Tire Codes: Left-side — D-4860; Right-side — D-4862

Tire Circumference: Left-side — 2,223 mm (87.52 in.); Right-side – 2,251 mm (88.62 in.)

Minimum Recommended Inflation: Left Front — 20 psi; Left Rear — 18 psi; Right Front — 43 psi; Right Rear — 40 psi.

Notes: NASCAR Cup and Xfinity Series teams ran this same combination of left- and right-side tires at Bristol in April. … This is the first time NASCAR Gander Outdoors Truck Series teams have run either of these two tire codes. … Compared to what the Trucks ran at Bristol last August, this tire set-up features construction updates on both sides of the car and a compound change on the left-side. … This is the only track at which NASCAR teams will run either of these two tire codes in 2019. … Unlike on most NASCAR ovals one mile or less in length, on which teams generally do not run inner liners in their tires, teams are required to run liners in their right-side tires only at Bristol. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

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Goodyear tire info for Pocono, Iowa

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All three NASCAR premier national series are in action this weekend, with the Cup Series and Gander Outdoors Truck Series at Pocono Raceway and the Xfinity Series will be at Iowa Speedway.

Although Pocono is 2 ½ times larger than last weekend’s race at New Hampshire’s “Magic Mile,” both tracks share similarities, including relatively little banking, and teams often use left-side air pressures as a tuning tool to gain grip as the cars transition from the corners to back on the throttle onto Pocono’s long straightaways.

And because Cup teams just raced at Pocono eight weeks ago on the same tire set-up and downforce package, there will not be any changes in the tires and teams should have plenty of data from the previous June 2 race at the Tricky Triangle.

Pocono is always a challenge on both the teams and the tires,” said Greg Stucker, Goodyear’s director of racing. “Being pretty flat with long, fast straightaways and three distinct corners, teams will try to gain grip however they can, including going below our recommended air pressures, most specifically on the left-side of the car.

We integrated construction updates on both the left- and right-side tires for the June race, so since the Cup cars have already run at Pocono with this higher downforce package, they have a head start on what to expect with their set-ups this weekend.”

Cup cars will run the same combination of left- and right-side tires that they ran at Pocono in June. For the Trucks, these are two new Goodyear tire codes, featuring construction updates on both sides of the truck compared to what was run at Pocono in 2018. As on all NASCAR ovals greater than one mile in length, teams are required to run inner liners on all four tire positions at Pocono. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here’s the Cup and Truck tire info for the weekend.

Tire: Goodyear Eagle Speedway Radials

Set limits: Cup: 3 sets for practice, 1 set for qualifying and 7 sets for the race (6 race sets plus 1 set transferred from qualifying or practice); Truck: 4 sets for the event.

Tire Codes: Left-side — D-4870; Right-side – D-4876

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,241 mm (88.23 in.)

Minimum Recommended Inflation: Left Front — 18 psi; Left Rear — 18 psi; Right Front — 41 psi; Right Rear — 37 psi

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As for Saturday’s Xfinity Series race at Iowa, this is the same tire set-up that the Xfinity cars previously ran at Iowa in June. The left-side tire code is the same that Xfinity teams ran at Phoenix in March.

To prepare for the 2019 season, Goodyear held a tire test with Christopher Bell, Cole Custer and Tyler Reddick at Iowa on April 16-17. Also, as on most NASCAR ovals one mile or less in length, teams will not run inner liners in their tires at Iowa.

Here’s the Xfinity tire info for the weekend.

Tire: Goodyear Eagle Speedway Radials

Set limits: 6 sets for the event

Tire Codes: Left-side — D-4864; Right-side – D-4884

Minimum Recommended Inflation: Left Front — 16 psi; Left Rear — 16 psi;

Right Front — 36 psi; Right Rear — 34 psi

Follow @JerryBonkowski

Goodyear Tire info for Chicagoland Speedway

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All three of NASCAR’s national series will be in action this weekend at Chicagoland Speedway, and they will all compete on updated tire combinations on the 1.5-mile track.

Compared to what was run at Chicago last year, both left and right-side tires feature construction updates to align with what is run at other speedways, while the right-side tire has also gone from a multi-zone tread tire to a single zone tread tire and will increase grip.

This tire combo was confirmed at a Goodyear test at Chicagoland on May 7. The drivers who participated in the test were Brad Keselowski, Ryan Newman and Paul Menard. As on all NASCAR ovals greater than 1 mile in length, teams are required to run inner liners in all four tire positions at Chicagoland. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

“Based on some indications we saw at our test at Chicagoland, we felt like we could bring some additional grip that will help the cars in traffic,” said Greg Stucker, Goodyear’s director of racing, in a press release. “When a trailing car closes in on a car ahead, it loses some aerodynamic downforce, so the additional mechanical grip from a more tractive right-side tire can help offset that loss. The 2019 Cup rules package has produced some good side-by-side racing so far, but based on what we saw at our test, as well as additional driver feedback, we feel like a more tractive right-side compound might help the cars throughout the field.”

Here is the tire info for the weekend.

Set limits: Cup: Three sets for practice, one set for qualifying and nine sets for the race (eight race sets plus one set transferred from qualifying or practice)

Xfinity: Eight sets for the event

Truck: Seven sets for the event

Tire Codes: Left-side — D-4928; Right-side — D-4930

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,248 mm (88.50 in.)

Minimum Recommended Inflation: Left Front – 19 psi; Left Rear – 19 psi; Right Front – 48 psi; Right Rear – 44 psi