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Goodyear bringing new ‘robust’ tires for Martinsville night race

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On Wednesday night, the NASCAR Cup Series will do a first: race under the lights at Martinsville Speedway (7 p.m. ET on FS1).

For the event, Goodyear will bring new tire codes to the half-mile track. The construction of the tires – a result of a test at the track last year partially held at night – has been designed to optimize the acceleration, deceleration and handling needed on Martinsville’s flat, tight turns.

The teams that took part in the test were Team Penske (Ryan Blaney), Stewart-Haas Racing (Clint Bowyer) and Wood Brothers Racing (Paul Menard). This is the only track at which NASCAR teams will run either of these two tire codes. As on most NASCAR ovals 1 mile or less in length, teams will not run inner liners in their tires at Martinsville.

“Moving the first Martinsville race later in the schedule will have an impact on tires and the track’s ability to take rubber,” Greg Stucker, Goodyear’s director of racing, said in a media release. “Originally scheduled for May and now being held in June, ambient temperatures will be warmer, which will help the cars’ ability to lay rubber in the concrete corners. Even though this race will be held at night, track temperatures should be warmer than what we ‘normally’ have for this event. In addition to the concrete corners, Martinsville’s lack of banking, long straightaways and tight turns combine for the other challenges teams face. Drivers are hard on the brakes entering the corners and hard on the gas exiting, so our constructions have to be very robust in handling those conditions.”

Here’s the info on the tires being used at Martinsville:

Set limits: 10 sets for the race

Tire Codes: Left-side — D-4948; Right-side — D-4950

Tire Circumference: Left-side — 2,221 mm (87.44 in.); Right-side — 2,250 mm (88.58 in.)

Minimum Recommended Inflation: Left Front — 10 psi; Left Rear — 10 psi; Right Front — 23 psi; Right Rear — 22 psi

Goodyear Tire info for Homestead-Miami Speedway

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All three national NASCAR series will end their seasons this weekend at Homestead-Miami Speedway, the 1.5-mile track that’s hosted the season finale for the Cup Series since 2002.

Each series will run the same tire set-up, which is new to the track.

This is the same combination of left and right-side tires each series ran at Chicagoland and those in the Cup and Xfinity Series ran at Darlington this season.

This left and right-side tire features construction updates to align with what is run at other speedways, while this right-side tire takes teams from a multi-zone tread tire to a single zone tire and will increase grip. As on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tires. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

“Homestead is one of the highest tire wear tracks that we have on the NASCAR circuit,” said Greg Stucker, Goodyear’s director of racing, in a press release.  “The compounds we will be running provide plenty of grip, but also offer the endurance needed on Homestead’s track surface.  These high wear tracks put on some of our best races, and the past several years at Homestead have proven that.  Tire fall-off creates more ‘comers’ and ‘goers’ over the course of a long run, which means more passing and tire management being an important element of the race.  Also a factor is how the teams’ pit crews come into play with 12 sets of tires for the race and four-tire stops all day.”

Here’s the tire info for this weekend.

Set limits: Cup: Three sets for practice, one set for qualifying and 12 sets for the race (11 race sets plus one set transferred from qualifying or practice);

Xfinity: Eight sets for the event;

Trucks: Six 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 — 52 psi; Right Rear — 48 psi

Goodyear tire info for NASCAR at ISM Raceway

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NASCAR makes its second trip of the year to ISM Raceway near Phoenix this weekend. 

All three national series will be in action for their final elimination playoff race.

All three series will run the same tire set-up on the 1-mile track.

Cup and Xfinity series teams will run the same right-side tire code they ran at Phoenix in March and a new left-side code (construction update).

Truck Series teams will be on a new tire set-up compared to their last race at Phoenix last year. Their left-side tire features a construction update, while the right-side tire features a compound change to introduce more wear and run cooler.

As on most NASCAR ovals 1 mile or less in length, teams will not run liners in their tires at Phoenix.

Here’s this weekend’s tire info.

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-4944; Right-side — D-4866

Tire Circumference: Left-side — 2,218 mm (87.32 in.); Right-side — 2,245 mm (88.39 in.)

Minimum Recommended Inflation: Left Front — 14 psi; Left Rear — 14 psi; Right Front — 32 psi; Right Rear — 30 psi

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Goodyear tire info for Southern 500 weekend

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NASCAR makes its annual trip to Darlington Raceway this weekend and it will do so with tires that have never been raced on the track’s surface.

Cup and Xfinity teams will bring the kind of tires that were used earlier this year at Chicagoland Speedway. Compared to what these teams ran at this track last year, both tires feature the same tread compounds with a construction update to align with what is run at other speedways.

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

A season-high 14 sets of tires are available to Cup teams on race day, meaning they will have to go an average of just more than 26 laps per set to complete the race.

As part of the Throwback Weekend and its 1990-94 theme, all tires will have the Goodyear logos that were present on race tires in the mid-90s beginning in 1992, with yellow “Goodyear #1” and “Eagle” logos.

Set limits: Cup: Three sets for practice, one set for qualifying and 14 sets for the race (13 race sets plus one set transferred from qualifying or practice);

Xfinity: 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 — 52 psi; Right Rear — 48 psi

Goodyear tire info for Xfinity at Road America, Trucks in Canada

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The Xfinity and Gander Outdoors Truck Series are the only national NASCAR series in action this weekend and they’ll each be competing on road courses.

They’ll also be competing on their respective tracks with tire codes that are new to each circuit.

Here’s the tire info for each series:

Xfinity – CTECH Manufacturing 180 at Road America (3 p.m. ET Saturday on NBCSN)

While the tires Xfinity teams will race on this weekend were used two weeks ago at Mid-Ohio, they will see their first use at Road America.

All four tires will feature the same code.

Compared to what was run at this course last season, this tire features the same tread compound with a construction update. As on all NASCAR road courses, teams will not run inner liners in their tires at Road America.

Tire: Goodyear Eagle Road Course Radials

Set limits: Six sets for the event

Tire Code: D-4920 (same on all four tire positions)

Tire Circumference: 88.66 in. (2,252 mm)

Minimum Recommended Inflation: Left Front — 22 psi; Right Front — 20 psi; Left Rear — 17 psi; Right Rear — 17 psi

 

Trucks – Chevrolet Silverado 250 at Canadian Tire Motorsports Park (2:30 p.m. ET Sunday on FS1)

The Truck Series will have the same code for all four tires.

This is the first time Truck teams have run this tire code. Compared to what was run at this course last season, this tire features the same tread compound with a construction update. As on all NASCAR road courses, teams will not run inner liners in their tires at CTMP.

Set limits: Five sets for the event

Tire Code: D-4920 (same on all four tire positions)

Tire Circumference: 88.66 in. (2,252 mm)

Minimum Recommended Inflation: Left Front — 22 psi; Right Front – 20 psi; Left Rear — 17 psi; Right Rear — 17 psi