Motorsports
Engineering for beginners: The challenges of building an engine for Mexico City
CONCORD N.C. – This weekend, race engineers will be put to the test as the NASCAR Cup Series and the NASCAR Xfinity Series put rubber to the road in Mexico City. The Autódromo Hermanos Rodríguez racecourse has many unique features about it, one of which is its disposition above sea level. With an elevation of over 7,000 feet, […]

CONCORD N.C. – This weekend, race engineers will be put to the test as the NASCAR Cup Series and the NASCAR Xfinity Series put rubber to the road in Mexico City.
The Autódromo Hermanos Rodríguez racecourse has many unique features about it, one of which is its disposition above sea level. With an elevation of over 7,000 feet, the circuit lives in a thinner air pressure that affects the entire car. Among the differences will be changes in producing power, managing tire wear, fuel consumption and overheating.
But it all starts with the engine. And it’s up to the shop to provide a power source that’s reliable at elevation. That is why Scott Maxim, powertrain director at Hendrick Motorsports, is pushing his team to make the best eight engines (including customer) they possibly can ahead of the Cup Series inaugural race in Mexico.
RELATED: Check out the Hendrick Motorsport paint schemes this week
With no current track on the calendar matching the unique properties that Mexico City presents, the engine team had a lot going against them ahead of this inaugural race. On top of the uniqueness, travel schedules required all cars to be completed prior to last weekend’s race at Michigan International Speedway. Pushing up an already tight deadline.
“We don’t have a lot of reference points at a higher elevation for us to use as a guide,” Maxim said. “Sonoma (Calif.) is near sea level. Watkins Glen, which we race at in New York, is about 460 feet above sea level. None of the circuits are at a high elevation, so this will be all new to us.”
In order to stay competitive during the race, the team has to rely on their general road course knowledge and data from other racing series to help build the engines to withstand thin air pressure while also lasting the duration of the race.
“We’ll maintain the same build specification based on what we understand from the limited amount of driver simulation that we’ve been able to determine,” Maxim said when discussing how to build an engine for a new circuit. “There’s a broad RPM range that the engine will run. From as low as 3,500 RPM to our maximum allowed of 9,000 RPM, that’s a broad RPM range of nearly 6,000 RPM. Elevation does not play a factor into that. It is all about the RPM range.
“We look at the engines operating range of RPM and we look at the racetrack for where the power relative to corner exit down the straightaway is most optimized to be able to provide our drivers with passing opportunities. We want to provide them with the tools they need to do their job to their highest capability. We’ll look at that in terms of corner exit RPM down the straightaway and try and optimize the power band for the best competitive performance,” Maxim added.
RELATED: First to the party: Hendrick Motorsports’ history of success in inaugural races
There is a unique challenge when racing at such high altitudes. The engine has to accommodate more than just how fast the car is going. It has to be able to take in fuel to move the pistons, disperse power throughout the car, and endure a three-hour race at a track which requires high speeds and heavy braking.
“The circuit is approximately 7,400 feet above sea level, so that in comparison to our typical road course that we race on is about a 22% reduction in air density and with that reduction, we have a near equal amount of power loss. The fuel consumption will be near equal to what that is,” Maxim said.
“The air is 22% less dense and therefore a naturally aspirated engine like the one we run in the NASCAR Cup Series and the Xfinity Series will produce a corresponding percentage of less power as a result of the air density decrease. We will also use a near equal amount of reduced fuel, so we’ll see a significant amount of fuel reduction. We have to tune accordingly for the reduced air density, and we’ve had to make adjustments in our calibration to better match the lower air density of Mexico City,” Maxim followed up.
“In addition to all of that, the air density decrease also has an impact on our cooling systems that are reliant upon the airflow from the racecar, so engine cooling, water and oil cooling, transaxle and driver cooling are impacted by the air density. We’ve got to make adjustments there in our cooling systems to allow for better airflow to try and overcome that reduced efficiency,” Maxim concluded.

Thankfully for the teams, NASCAR is allowing two practice sessions this weekend to compensate for the unknowns. Maxim plans on taking full advantage of both.
“We welcome the fact that we get two practices. The first is 50 minutes long and the second being 20, will allow us to do some additional confirmation and fine tuning,” Maxim said.
Despite the obstacles of racing outside the U.S. at a new circuit that is unlike anything the Cup Series has raced on previously; Maxim and his team are happy that NASCAR is getting its name out to newer audiences.
“I think it’s great for NASCAR and our sport and our sponsors to showcase our race team and all the work and dedication that go into our cars and engines,” Maxim said. “I think it is great for us, and I welcome that. Showcasing our teams, drivers and cars to more people is a positive.”
You can watch all four Hendrick Motorports drivers put these engines to the test this weekend. Catch the main event at 3 p.m. ET Sunday, June 15 on Prime Video.
Motorsports
NASCAR In-Season Tournament Bracket 2025 Updated Point Standings After Chicago
Six double-digit seeds in the NASCAR In-Season Challenge advanced to the quarterfinal round after Sunday’s Grant Park 165. Ty Gibbs and Alex Bowman, both of whom had top-10 finishes at the Chicago street race, are the only single-digit seeds left in the event. The seeds were determined by finishes in the three races prior to […]

Six double-digit seeds in the NASCAR In-Season Challenge advanced to the quarterfinal round after Sunday’s Grant Park 165.
Ty Gibbs and Alex Bowman, both of whom had top-10 finishes at the Chicago street race, are the only single-digit seeds left in the event. The seeds were determined by finishes in the three races prior to the start of the in-season challenge two weeks ago.
Ty Dillon, the lowest-seeded driver in the 32-driver field, pulled off another notable upset over Brad Keselowski. Dillon took down top seed Denny Hamlin last week at Atlanta.
The most heated second-round battle resulted in a late spin-out, as Alex Bowman knocked Bubba Wallace out of the way to finish ahead of the No. 23 car.
The eight remaining drivers will be matched up for the quarterfinal round at Sonoma, another road course. The best individual finish in each of the four matchups will move on to the semifinal round at Dover.
NASCAR In-Season Challenge Bracket
No. 32 Ty Dillon vs. No. 8 Alex Bowman
No. 12 John Hunter Nemechek vs. No. 20 Erik Jones
No. 15 Ryan Preece vs. No. 23 Tyler Reddick
No. 6 Ty Gibbs vs. No. 14 Zane Smith
The full NASCAR points standings can be found here.
Alex Bowman produced the most action in an In-Season Challenge matchup with his spin of Bubba Wallace.
Bowman and Wallace were the only top 10 seeds matched up against each other in the second round. They went at it for a few laps before the No. 48 car won out.
Bowman ended up in eighth place, while Wallace was relegated to 28th place after the incident.
The No. 48 car driver is one of two single-digit seeds left in the bracket. Ty Gibbs is the other.
Gibbs finished second behind Shane Van Gisbergen in the Chicago street race. Gibbs, the No. 6 seed, is the highest-remaining seed remaining in the bracket.
Bowman will go head-to-head with Ty Dillon, the No. 32 seed. The winner of that matchup faces the winner of the John Hunter Nemechek-Erik Jones matchup.
Gibbs is matched up with Zane Smith. Tyler Reddick and Ryan Preece make up the other matchup on the right side of the bracket.
The four quarterfinal matchups will be determined at Sonoma, the second road course in a row on the schedule, next Sunday.
Bowman and Preece have the best recent average finishes at the northern California track among the eight quarterfinalists.
Gibbs is viewed as one of the better road-course drivers on the NASCAR Cup Series circuit, but he has two finishes outside the top 15 in his two Cup Series starts at Sonoma.
Motorsports
NASCAR playoff standings, Cup points updated after Grant Park 165 at Chicago Street Race
NASCAR has updated its playoff standings and Cup points after the Grant Park 165 at the Chicago Street Race on Sunday. Shane van Gisbergen won the race, and there are now seven races remaining before the playoffs begin. The Chicago Street Race also featured the second round of NASCAR’s In-Season Tournament. Here’s a look at […]

NASCAR has updated its playoff standings and Cup points after the Grant Park 165 at the Chicago Street Race on Sunday. Shane van Gisbergen won the race, and there are now seven races remaining before the playoffs begin.
The Chicago Street Race also featured the second round of NASCAR’s In-Season Tournament. Here’s a look at the updated NASCAR playoff standings and Cup points.
NASCAR playoff standings after Chicago
Shane van Gisbergen now has 11 playoff points after earning a win at Chicago. He is one of five drivers who have over 10 playoff points this year.
Bubba Wallace suffered a setback after finishing 28th at Chicago. He would make the playoffs if it began today, but the 31-year-old is only two points above the cut line.
Rank | Driver | Wins | Playoff Points |
1 | Kyle Larson | 3 | 23 |
2 | Denny Hamlin | 3 | 19 |
3 | Christopher Bell | 3 | 16 |
4 | William Byron | 1 | 12 |
5 | Shane van Gisbergen | 2 | 11 |
6 | Ryan Blaney | 1 | 9 |
7 | Austin Cindric | 1 | 8 |
8 | Joey Logano | 1 | 7 |
9 | Chase Briscoe | 1 | 6 |
10 | Josh Berry | 1 | 6 |
11 | Chase Elliott | 1 | 5 |
12 | Ross Chastain | 1 | 5 |
13 | Tyler Reddick | 0 | +143 |
14 | Alex Bowman | 0 | +39 |
15 | Chris Buescher | 0 | +35 |
16 | Bubba Wallace | 0 | +2 |
17 | Ryan Preece | 0 | -2 |
18 | AJ Allmendinger | 0 | -43 |
19 | Kyle Busch | 0 | -46 |
20 | Erik Jones | 0 | -50 |
Updated Cup points after Chicago Street Race
William Byron finished last at Chicago but still has the most Cup points in 632. He has only won the Daytona 500 this season, but Byron has been a consistent driver with 10 top-10 finishes, seven top-five finishes and seven stage wins.
Byron is not too comfortable, as Chase Elliott and Kyle Larson are right behind him. Elliott is 13 points behind the leader, while Larson is only 19 points behind Byron.
Rank | Driver | Points | Leader |
1 | William Byron | 632 | 0 |
2 | Chase Elliott | 619 | -13 |
3 | Kyle Larson | 613 | -19 |
4 | Denny Hamlin | 589 | -43 |
5 | Tyler Reddick | 584 | -48 |
6 | Christopher Bell | 565 | -67 |
7 | Ryan Blaney | 539 | -93 |
8 | Ross Chastain | 490 | -142 |
9 | Chase Briscoe | 482 | -150 |
10 | Alex Bowman | 480 | -152 |
11 | Chris Buescher | 476 | -156 |
12 | Joey Logano | 471 | -161 |
13 | Bubba Wallace | 443 | -189 |
14 | Ryan Preece | 441 | -191 |
15 | AJ Allmendinger | 400 | -232 |
16 | Kyle Busch | 397 | -235 |
17 | Erik Jones | 393 | -239 |
18 | Austin Cindric | 389 | -243 |
19 | Ty Gibbs | 377 | -255 |
20 | John Hunter Nemechek | 375 | -257 |
21 | Carson Hocevar | 368 | -264 |
22 | Josh Berry | 366 | -266 |
23 | Michael McDowell | 366 | -266 |
24 | Zane Smith | 363 | -269 |
25 | Ricky Stenhouse Jr. | 361 | -271 |
26 | Austin Dillon | 315 | -317 |
27 | Shane van Gisbergen | 308 | -324 |
28 | Brad Keselowski | 307 | -325 |
29 | Daniel Suarez | 307 | -325 |
30 | Todd Gilliland | 306 | -326 |
Motorsports
DePaul-branded race car competes at NASCAR Street Race
This past weekend, NASCAR held the Chicago Street Race in Grant Park for a third consecutive year. DePaul landed a partnership with Spire Motorsports and was featured on Michael McDowell’s No. 71 Chevrolet ZL1. “Partnering with Spire Motorsports for the NASCAR Chicago Street Race allows us to spotlight DePaul on a national stage while embracing […]

This past weekend, NASCAR held the Chicago Street Race in Grant Park for a third consecutive year. DePaul landed a partnership with Spire Motorsports and was featured on Michael McDowell’s No. 71 Chevrolet ZL1.
“Partnering with Spire Motorsports for the NASCAR Chicago Street Race allows us to spotlight DePaul on a national stage while embracing a global event in our own backyard,” said DePaul Vice President and Director of Athletics DeWayne Peevy. “It’s the perfect example of how we’re using sports to elevate our visibility and create real-world learning experiences for our students.”
DePaul went full throttle with a partnership, but McDowell wasn’t able to go full throttle in the race.

He started in second place and led each of the opening 31 laps; he passed Shane van Gisbergen — the winner of the Cup Series — in the opening corner.
There was an issue with McDowell’s throttle cable that sent him to the service lane, and ultimately took him out of the running for the win.
“The throttle cable just broke,” McDowell said to NASCAR post-race. “I don’t know what caused it or how it got to that spot, but that’s what happened. I feel like we had control of the race the whole race.
“I was behind the pace car, and the throttle stuck wide-open. Luckily, I got to the switches fast enough before I ran into something, and then a cable broke after that. It’s just a shame. We had a great car,” McDowell said.
McDowell ended up finishing in 32nd place, 22 laps behind van Gisbergen.
“Epic weekend for us. I’m a lucky guy,” van Gisbergen said to the Associated Press.
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Motorsports
Trackhouse’s plan comes together as SVG wins again in NASCAR Chicago
Shane Van Gisbergen is rapidly establishing himself in NASCAR, winning twice in his rookie season and possibly positioning himself for the Cup Series playoffs. After securing victories at Autódromo Hermanos Rodríguez and the Grant Park Street Circuit, he heads to Sonoma with a chance to match top drivers like Denny Hamlin. His crew chief praises […]

Shane Van Gisbergen is rapidly establishing himself in NASCAR, winning twice in his rookie season and possibly positioning himself for the Cup Series playoffs. After securing victories at Autódromo Hermanos Rodríguez and the Grant Park Street Circuit, he heads to Sonoma with a chance to match top drivers like Denny Hamlin. His crew chief praises Van Gisbergen’s ability to navigate through challenging situations on the track. As he becomes more comfortable with the car’s setup, there’s significant potential for him to improve even further, particularly on oval tracks.
By the Numbers
- Two victories in 2025: Autódromo Hermanos Rodríguez and Grant Park Street Circuit.
- Van Gisbergen’s average finish on ovals has improved from 30th to top-20.
State of Play
- Trackhouse Racing’s strategic investment in Van Gisbergen is paying off with multiple wins.
- Ongoing improvements are expected on oval tracks, enhancing his competitiveness.
What’s Next
Van Gisbergen will race at Sonoma Raceway next, where he aims to continue his winning trend and build on his playoff positioning. With two more road courses left in the regular season, opportunities for additional victories remain, which could strengthen his spot for the playoffs.
Bottom Line
Shane Van Gisbergen is proving to be a significant asset for Trackhouse Racing, combining natural talent with strategic racing IQ to enhance his potential as a star in NASCAR. His development as a driver is key to attracting sponsorship and could lead to a competitive playoff run.
Motorsports
How a Colorado restaurateur leaped into action when tariffs hit food prices
The price of avocados from Mexico, a mainstay at both restaurants, has doubled from about $45 to $50 per box to about $90 to $100, he said. That price has trickled down to customers, now costing them $2 per scoop, up from $1. It’s now cheaper to buy the popular topping from local markets than […]

The price of avocados from Mexico, a mainstay at both restaurants, has doubled from about $45 to $50 per box to about $90 to $100, he said. That price has trickled down to customers, now costing them $2 per scoop, up from $1. It’s now cheaper to buy the popular topping from local markets than from wholesalers. Many local grocers now limit the number of avocados each customer can purchase, he said, because of high demand.
“Those signs are because of people like me,” Hammer joked, referring to the quantity restrictions. He said customers are beginning to “tighten their belts” and visit his restaurants less frequently.
They’re also ordering fewer extras like avocado and guacamole. Even mainstay are becoming more expensive. The price of ground beef has increased due to the rising costs of cow feed, Hammer’s suppliers have told him.
Looking ahead
In an attempt to keep things afloat during these uncertain times, Hammer, whose family owned a pub when he was growing up, has stopped taking a salary from the restaurants. Instead, he relies on his digital marketing business for income. He acquired Twisted Root just six months ago, while Joe Biden was president, and Mauka Poke about a year and a half ago, he said.
The seafood restaurant brings in about $350,000 a year with a 5% profit margin, but Twisted Root has a negative 10% profit margin despite its $450,000 yearly revenue. The staff is larger there and the rent higher, plus Twisted Root offers vegan alternatives that are more expensive than meat and dairy products, Hammer said. He tries to keep the menu prices reasonable for customers, which sometimes means taking on more cost.
Motorsports
Video: Chicago NASCAR Cup pile-up blocks track, causes early red flag
After qualifying third, Carson Hocevar had high hopes for Sunday’s NASCAR Cup race at the Chicago Street Course. But while his teammate Michael McDowell passed Shane van Gisbergen and led the opening lap, Hocevar slipped back to seventh. Just three laps into the race, Hocevar clipped the wall at the apex of Turn 10, shooting out […]

After qualifying third, Carson Hocevar had high hopes for Sunday’s NASCAR Cup race at the Chicago Street Course. But while his teammate Michael McDowell passed Shane van Gisbergen and led the opening lap, Hocevar slipped back to seventh.
Just three laps into the race, Hocevar clipped the wall at the apex of Turn 10, shooting out into the outside wall. At that point, he lost control and spun in front of the field.
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Brad Keselowski, Daniel Suarez, Austin Dillon, Todd Gilliland, Riley Herbst, and reigning Supercars champion Will Brown all plowed into it, suffering damage. The track was nearly completely blocked as well. A.J. Allmendinger made it through, but not without being clipped by Keselowski on his way by.
Ryan Blaney and Ross Chastain led the lucky ones through a small opening between the pile-up and the concrete wall. There was also some contact between cars behind the main crash as drivers tried to slow, with Cole Custer sustaining some damage after hitting Erik Jones.
NASCAR was forced to red flag the race in order to clean up the mess. The stoppage lasted 16 minutes.
This will also impact the $1 million in-season bracket challenge as Hocevar was part of the final 16, facing off against Tyler Reddick in Chicago. Keselowski was facing Ty Dillon, who entered the tournament as the bottom seed.
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William Byron wasn’t involved in the wreck, but the championship leader had his own issues early, going to the pits and falling off the lead lap after experiencing clutch issues.
Read Also:
Daniel Suarez felt unheard, with “no chemistry” at Trackhouse Racing
Shane van Gisbergen goes elbows out to win Chicago NASCAR Xfinity race
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