What drivers said after the Atlanta Cup race

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Brad Keselowski, winner: “I think any win means a lot, but (60 overall wins with Team Penske is) a big number.  Now I get to wear that yellow Mark Donohue helmet. … We’re going to wear it next week. But what a tremendous honor.  This day is ‑‑ wow, I don’t even know how to put it in words. I’m just excited for this team, first race with the new rules or whatever they’re called now, and to be able to win it, that’s really special, as well, and I know everybody here is excited about that, and just a great day overall for Team Penske and our Ford Mustang.”

Martin Truex Jr., finished 2nd: Yeah, I’m a lot frustrated, you know – lapped cars. They just have no respect for the leaders running for the win. It’s completely uncalled for, ridiculous. It’s a shame. We lined up on that last restart behind all those guys that are a lap down and I know they were racing for the lucky dog, which is all good, but once they got strung out, the 17 (Ricky Stenhouse Jr.) … he just wouldn’t let me by. He just kept hugging the bottom, hugging the bottom, hugging the bottom and knew that’s where I needed to run. My spotter kept telling his we need the bottom. These cars punch such a big hole and it’s so bad in dirty air, it completely killed us for 25, 30 laps to the point my front tires were gone once I finally got by him. Hell, I still ran down the 2 (Brad Keselowski) in two laps from half a straightaway. We clearly had the best car and were in position to win. Guys a lap down have to have a little more respect than that.”

Kurt Busch, finished 3rd: “I could say that wasn’t anything fantastic or exciting, but it really was. To finish third on our second outing together and to run with the who’s-who of the sport just shows Ganassi’s got the right stuff. (Kyle) Larson had a tough break. We caught a good break to get on the lead lap with (Joey) Logano and to race in the top five at the end; but all in all, for us to get gelled together to learn what loose and tight was, but man, I just struggled in Turns 3 and 4 and that’s where I got arm-wrestled. They took us but hey, we’re top five in this kind of run.

Kevin Harvick, finished 4th: “We had a good race. It just felt like we were one step behind all the way from Friday. We made it the best it had been there at the end of the run. When we got the shadows in (Turns) 1 and 2 and cooled off our car got way too tight and started chattering the right tire. We made it a lot better at the end though. Our Busch Beer Ford had a solid day though and we were able to adjust on the car and make it better throughout the day. We just got really tight in the middle of the race and we just ran out of time.”

Clint Bowyer, finished 5th: “Our run wasn’t pretty. I knew our car had great speed. Obviously from practice and qualifying. Racing is a different beast, especially at Atlanta. You have to take care of those Goodyears. The way I had it, it felt like I was on top of the track skating around too much. We made good air pressure adjustments and got the grip level back in my race car to where I could compete. It is just weird. You see cars that are kind of up, cars that are down, cars that are dragging, cars that aren’t. Trying to figure out the right scenario for this is going to be interesting. You have to remember, this is a one-off race. There is no track that we go to anymore that is as slick as this and as hard on tires. It will be interesting to see what Las Vegas brings.”

Kyle Busch, finished 6th: “We had a hell of a day. We had a hell of a weekend. On the Cup side, we just had no fun this weekend, so it was really unfortunate for us. Guys worked hard and persevered and we battled through and took probably a 16th, 14th-place finish in our Camry and ended up sixth with it, so not too bad I guess.”

Erik Jones, finished 7th: “It’s not really a lot different honestly than what I thought old Atlanta was a lot like. I don’t think there was any more passing, I don’t think there was any less passing. I think it was kind of the same. It’s just different. Just a different way of going about it. Our DeWalt Camry was pretty good, but just a different race for sure than it has been.”

Aric Almirola, finished 8th: “Clean air was a big deal. Early in the race our car was really fast out front and when we got behind in second it still felt like we were a second or third-place car. Then I made a terrible mistake getting onto pit road and was three-tenths mph too fast and that is too fast. I had to go to the tail and then my goodness was it a challenge. Traffic, cars make so much downforce and we are all going so fast that it is really hard to make passes until late, late, late in the run. So, that is my fault. We had a really fast Smithfield Ford Mustang and it was driver error that made the mistake and that hurt the rest of our day.”

Chris Buescher, finished 9th:  “I knew that 24th-best finish stat (previous best Atlanta finish) and that was disappointing to me. I knew we were going to better it today about after the first stage. Everybody on this Scott Comfort Plus Camaro ZL1 did a great job. This group worked hard. We made big swings to get up there and to start 30th and be able to get a top 10 out of this thing, I’m proud of them. That was fun. That helped get us out of that hole or start to dig us out of that hole we got in with The Big One at Daytona. Just puts everyone in a good mood and Ryan (Preece) was running good too and I’m not exactly sure what happened, but I know something a little bit out of his control. I think this is a sign of good things to come. We’ve got some more work to do, but heck of a start.”

Kyle Larson, finished 12th:  “I had a good day going until I sped (on pit road). My car handled really good and then once I got where I had to restart in the back, I was just really tight. Yeah, I mean, clean air is even more important nowadays than in the past I think, at least at a track like this. That was a little disappointing, but more so just upset at myself for making a big mistake like that.”

Daniel Hemric, finished 20th: “Just had a crazy day. I thought we were going to put ourselves in position to have a solid day. I made a lot of mistakes, way too many mistakes than what you can make at this level to even have a shot to run top five and still found ourselves in position there to do it and just had a right front tire come apart on our Alsco/Red Kap Camaro ZL1. That was the end of it, but the good thing is I feel like it put a little motivation in everybody here at RCR. That is the kind of race cars we have to have at the race track every week to give ourselves a shot. It was fun to drive, fun to pass people and look forward to next week.”

Ty Dillon, finished 25th: “This GEICO Racing team battled all day. We didn’t fire off how we wanted to at the start. Our Camaro ZL1 was just too tight in traffic and would fall off from there. This team kept working though. My crew chief made great changes, and my team had clean stops on pit road. We really had it handling how we needed it to by the middle of Stage 2. We were running similar lap times to the leaders at the end, and I was really happy with it. There is no doubt that our team learned a lot today with this new package. I’m proud of their hustle and that we kept improving throughout the race. Now we’ll turn our focus to Las Vegas.”

Ryan Preece, finished 35th: “I was just trying to make sure I wasn’t speeding. And when I looked up, he (BJ McLeod, No. 52) was coming in the pits. So, it’s a mistake. What are you going to do? It’s just unfortunate for us because we were having a really good run. Like I said, we are going to have some good cars this year. So, if we can keep that, we’ll be really good at Vegas and I’m just really proud of everybody with JTG and Kroger. There’s nothing else you can do other than that. So, I’m looking forward to next week.”

Check back for more.

Dr. Diandra: Crashes: Causes and complications

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Two drivers have missed races this year after hard rear-end crashes. Kurt Busch has been out since an incident in qualifying at Pocono in July. Alex Bowman backed hard into a wall at Texas and will miss Sunday’s race at the Charlotte Roval (2 p.m. ET, NBC).

Other drivers have noted that the hits they’ve taken in the Next Gen car are among the hardest they’ve felt in a Cup car.

“When I crashed it (at Auto Club Speedway in practice), I thought the car was destroyed, and it barely backed the bumper off. It just felt like somebody hit you with a hammer,” Kevin Harvick told NBC Sports.

The three most crucial parameters in determining the severity of a crash are:

  • How much kinetic energy the car carries
  • How long the collision takes
  • The angle at which the car hits

Angle

The last of these factors requires trigonometry to explain properly. You can probably intuit, however, that a shallower hit is preferable to a head-on — or rear-on — hit.

A graphic show shallower (low-angle) hits and deeper (high-angle) hits
Click for a larger view

When the angle between the car and the wall is small, most of the driver’s momentum starts and remains in the direction parallel to the wall. The car experiences a small change in velocity.

The larger the angle, the larger the change in perpendicular speed and the more force experienced. NASCAR has noted that more crashes this season have had greater angles than in the past.

Busch and Bowman both had pretty large-angle hits, so we’ll skip the trig.

Energy — in pounds of TNT

A car’s kinetic energy depends on how much it weighs and how fast it’s going. But the relationship between kinetic energy and speed is not linear: It’s quadratic. That means going twice as fast gives you four times more kinetic energy.

The graph shows the kinetic energies of different kinds of race cars at different speeds. To give you an idea of how much energy we’re talking about, I expressed the kinetic energy in terms of equivalent pounds of TNT.

A vertical bar graph showing kinetic energies for different types of racecars and their energies

  • A Next Gen car going 180 mph has the same kinetic energy as is stored in almost three pounds of TNT.
  • Because IndyCars are about half the weight of NASCAR’s Next Gen car, an IndyCar has about half the kinetic energy of a Next Gen car when both travel at the same speed.
  • At 330 mph, Top Fuel drag racers carry the equivalent of six pounds of TNT in kinetic energy.

All of a car’s kinetic energy must be transformed to other types of energy when the car slows or stops. NASCAR states that more crashes are occurring at higher closing speeds, which means more kinetic energy.

Longer collisions > shorter collisions

That seems counterintuitive, doesn’t it? Who wants to be in a crash any longer than necessary?

But the longer a collision takes, the more time there is to transform kinetic energy.

A pitting car starts slowing down well below it reaches its pit box. The car’s kinetic energy is transformed into heat energy (brakes and rotors warming), light energy (glowing rotors), and even sound energy (tires squealing).

The same amount of kinetic energy must be transformed in a collision — but much faster. In addition to heat, light and sound, energy is transformed via the car spinning and parts deforming or breaking. (This video about Michael McDowell’s 2008 Texas qualifying crash goes into more detail.)

The force a collision produces depends on how long the car takes to stop. Compare the force from your seat belt when you slow down at a stop sign to what you feel if you have to suddenly slam on the brakes.

To give you an idea of how fast collisions can be, the initial wall impact in the crash that killed Dale Earnhardt Sr. lasted only eight-hundredths (0.08) of a second.

SAFER barriers use a car’s kinetic energy to move a heavy steel wall and crush pieces of energy-absorbing foam. That extracts energy from the car, plus the barrier extends the collision time.

The disadvantage is that a car with lower kinetic energy won’t move the barrier. Then it’s just like running into a solid wall.

That’s the same problem the Next Gen car seems to have.

Chassis stiffness: A Goldilocks problem

The Next Gen chassis is a five-piece, bolt-together car skeleton, as shown below.

A graphic showing the five parts of the Next Gen chassis.
Graphic courtesy of NASCAR. Click to enlarge.
The foam surrounding the outside of the rear bumper
The purple is energy-absorbing foam. Graphic courtesy of NASCAR. Click for a larger view.

That graphic doesn’t show another important safety feature: the energy absorbing foam that covers the outside of the bumpers. It’s purple in the next diagram.

All cars are designed so that the strongest part of the car surrounds the occupants. Race cars are no different.

The center section of the Next Gen chassis is made from stout steel tubing and sheet metal. Components become progressively weaker as you move away from the cockpit. The bumper, for example, is made of aluminum alloy rather than steel. The goal is transforming all the kinetic energy before it reaches the driver.

Because the Next Gen car issues are with rear impacts, I’ve expanded and highlighted the last two pieces of the chassis.

The rear clip and bumper, with the fuel cell and struts shaded

The bumper and the rear clip don’t break easily enough. The rear ends of Gen-6 cars were much more damaged than the Next Gen car after similar impacts.

If your initial thought is “Just weaken the struts,” you’ve got good instincts. However, there are two challenges.

I highlighted the first one in red: the fuel cell. About the only thing worse than a hard collision is a hard collision and a fire.

The other challenge is that a chassis is a holistic structure: It’s not like each piece does one thing independent of all the other pieces. Changing one element to help soften rear collisions might make other types of collisions harder.

Chassis are so complex that engineers must use finite-element-analysis computer programs to predict their behavior. These programs are analogous to (and just as complicated as) the computational fluid dynamics programs aerodynamicists use.

Progress takes time

An under-discussed complication was noted by John Patalak, managing director of safety engineering for NASCAR. He told NBC Sports’ Dustin Long in July that he was surprised by the rear-end crash stiffness.

The Next Gen car’s crash data looked similar to that from the Gen-6 car, but the data didn’t match the drivers’ experiences. Before addressing the car, his team had to understand the disparity in the two sets of data.

They performed a real-world crash test on a new configuration Wednesday. These tests are complex and expensive: You don’t do them until you’re pretty confident what you’ve changed will make a significant difference.

But even if the test goes exactly as predicted, they aren’t done.

Safety is a moving target.

And always will be.

NASCAR weekend schedule for Charlotte Motor Speedway Roval

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NASCAR Cup Series drivers race on the road for the final time this season Sunday, as the Charlotte Motor Speedway Roval course ends the playoffs’ Round of 12.

The 17-turn, 2.28-mile course incorporating the CMS oval and infield will determine the eight drivers who will advance to the next round of the playoffs. Chase Elliott won last Sunday at Talladega Superspeedway and is the only driver who has qualified for a spot in the Round of 8.

Entering Sunday’s race, Austin Cindric, William Byron, Christopher Bell and Alex Bowman are below the playoff cutline. Bowman will not qualify for the next round because he is sidelined by concussion-like symptoms.

The race (2 p.m ET) will be broadcast by NBC.

Charlotte Motor Speedway Roval (Cup and Xfinity)

Weekend weather

Friday: Sunny. High of 81 with a 6% chance of rain.

Saturday: Mixed clouds and sun. High of 67 with a 3% chance of rain.

Sunday: Sunny. High of 68 with a 3% chance of rain.

Friday, Oct. 7

(All times Eastern)

Garage open

  • 12 – 5 p.m. — Xfinity Series

Saturday, Oct. 8

Garage open

  • 7 a.m. – 2:30 p.m. — Cup Series
  • 8:30 a.m. — Xfinity Series

Track activity

  • 10 – 10:30 a.m. — Xfinity practice (NBC Sports App)
  • 10:30 – 11:30 a.m. — Xfinity qualifying (NBC Sports App)
  • 12 – 1 p.m. — Cup practice (NBC Sports App, USA Network coverage begins at 12:30 p.m.)
  • 1 – 2 p.m. — Cup qualifying (USA Network, NBC Sports App)
  • 3 p.m. — Xfinity race (67 laps, 155.44 miles; NBC, Peacock, Performance Racing Network, SiriusXM NASCAR Radio)

Sunday, Oct. 9

Garage open

  • 11 a.m. — Cup Series

Track activity

  • 2 p.m. — Cup race (109 laps, 252.88 miles; NBC, Performance Racing Network, SiriusXM NASCAR Radio)

 

Rodney Childers fined $100,000, suspended for four races

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NASCAR has suspended Rodney Childers, Kevin Harvick‘s crew chief, for four races and fined him $100,000 for what the sanctioning body called modification of a part supplied by a vendor.

Harvick, who is out of the Cup Series playoffs, and the Stewart-Haas Racing No. 4 team were docked 100 points.

Harvick’s car and that of Martin Truex Jr. were taken to NASCAR’s Research and Development Center in Concord, N.C. after last Sunday’s race at Talladega Superspeedway. There were no penalties assessed to the Truex team.

Harvick has been particularly critical of the Next Gen car in recent months, once referring to the “crappy-ass parts” provided by suppliers.

Harvick’s car erupted in flames during the Southern 500 Sept. 4 at Darlington Raceway. After he climbed from the smoking car, Harvick blamed the fire on “just crappy parts on the race car like we’ve seen so many times. They haven’t fixed anything. It’s kind of like the safety stuff. We just let it keep going and keep going.

“The car started burning and as it burned the flames started coming through the dash. I ran a couple laps and then as the flame got bigger it started burning stuff up and I think right there you see all the brake fluid that was probably coming out the brakes and part of the brake line, but the fire was coming through the dash.

“What a disaster for no reason. We didn’t touch the wall. We didn’t touch a car, and here we are in the pits with a burned-up car, and we can’t finish the race during the playoffs because of crappy-ass parts.”

MORE: AJ Allmendinger to return to Cup Series in 2023

Unless the team appeals, Childers would miss races at Charlotte, Las Vegas, Homestead and Martinsville and would return for the season finale at Phoenix.

NASCAR president Steve Phelps told the Associated Press that officials have not targeted Harvick. “I would say that’s ridiculous,” he said. “No one has a vendetta against Kevin Harvick or Rodney or anyone at Stewart-Haas Racing.”

On Wednesday afternoon, Harvick tweeted, “Seems strange…” A Childers tweet called the penalty “Shocker…..”.

NASCAR also announced Wednesday it has suspended Young’s Motorsports crew chief Andrew Abbott indefinitely for a behavioral violation during pre-race inspection. He must undergo anger-management training to be reinstated. The team races in the Camping World Truck Series.

Drivers to watch in NASCAR Cup Series race at Charlotte Roval

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The lineup for the NASCAR Cup Series playoffs Round of 8 will be decided in Sunday’s race at the Charlotte Motor Speedway Roval.

Entering the race, the final event in the Round of 12, Austin Cindric, William Byron, Christopher Bell and Alex Bowman are below the cutline. Bowman will miss the race — and thus the cutoff — as he continues to battle concussion-like symptoms. Noah Gragson is scheduled to drive the No. 48 Chevrolet Sunday.

Cindric is tied with Chase Briscoe for the eighth playoff spot, but Briscoe would claim it on the tiebreaker. Byron is 11 points back, and Bell is 33. Hendrick Motorsports has appealed the penalty to Byron that dropped him below the cutline. That appeal is scheduled to be heard Thursday.

MORE: Hailie Deegan to make Xfinity debut at Las Vegas

Any playoff driver who wins Sunday’s race and isn’t already qualified — Chase Elliott qualified for the Round of 8 by winning last week at Talladega Superspeedway — automatically advances to the Round of 8.

Drivers to watch Sunday at the Roval (2 p.m., ET, NBC), the final road-course race of the season:

FRONTRUNNERS

Chase Elliott

  • Points position: 1st
  • Last three races: Won at Talladega, 32nd at Texas, 2nd at Bristol
  • Past at CMS Roval: Won in 2019 and 2020

Elliott is the clear favorite to win a second championship. He won Sunday at Talladega to advance to the Round of 8 and can relax Sunday at Charlotte having punched his ticket. Relaxing isn’t likely, however, as Elliott will be among the favorites to win.

Ryan Blaney

  • Points position: 2nd
  • Last three races: 2nd at Talladega, 4th at Texas, 30th at Bristol
  • Past at CMS Roval: Won in 2018.

Blaney continues along a path that could result in him winning the Cup championship without winning a race. He came within an eyelash of winning Sunday at Talladega but fell victim to Chase Elliott’s last-lap charge. He should be a threat Sunday at the Roval, where he has four straight top 10s.

Kyle Larson

  • Points position: 6th
  • Last three races: 18th at Talladega, 9th at Texas, 5th at Bristol
  • Past at CMS Roval: Won in 2021

Larson’s last win — and his last top-four finish — came at Watkins Glen seven races ago. He is 18 points over the cutline entering Sunday’s race.

QUESTIONS TO ANSWER

Austin Cindric

  • Points position: 9th
  • Last three races: 9th at Talladega, 15th at Texas, 20th at Bristol
  • Past at CMS Roval: Sunday will mark his first Cup race. Has three top threes in four Xfinity starts.

Cindric hasn’t won since the season-opening Daytona 500 and is one of five drivers still in the playoffs who own only one victory this year. His ninth-place run at Talladega ended a streak of four straight finishes of 12th or worse.

MORE: NBC Sports NASCAR Power Rankings

Daniel Suarez

  • Points position: 7th
  • Last three races: 8th at Talladega, 12th at Texas, 19th at Bristol
  • Past at CMS Roval: Best finish in four starts is 13th

Suarez is 12 points above the cutline entering Sunday’s race. He has never led a lap at the Roval and has never finished in the top 10.

Chase Briscoe

  • Points position: 8th
  • Last three races: 10th at Talladega, 5th at Texas, 14th at Bristol
  • Past at CMS Roval: Finished 22nd last year in his only Cup start

Briscoe is teetering on top of the cutline in search of a spot in the Round of 8. He hasn’t won since the fourth race of the year at Phoenix and had a poor performance at the Roval last year.