Asphalt
2026 New Hampshire: What to Watch
With the threat of rain looming, here are a few things to watch for the 2026 New Hampshire NASCAR race. […]
Materials
All-Star Race
2026 Dover: Race Focus
As Dover prepares to host its first All-Star Race ever, let’s examine what I think is the most critical element of the race. Building Speed’s 2026 Dover race focus is the track itself. […]
Rain Tires
What we Know about the Abnormal Tire Wear at Bristol
The Bristol 2024 race set lead change record for short tracks, but only because of abnormal tire wear. Let’s investigate why. […]
Auto Club Speedway of California
The Trouble with Pit Road Walls
Brandon Jones hit the edge of the pit road wall during Saturday’s XFINITY race, prompting a lot of people to ask if sand barrels are the best we can do in terms of safety. […]
Lead
Ballast: Tungsten vs. Lead
NASCAR penalized a couple of teams recently for dropping tungsten ballast on the racetrack. Let’s revisit why those chunks of tungsten are there in the first place. Ballast is weight added to a racecar to […]
Air Titan
The Scientific Secrets of PJ1 Track Bite
NASCAR’s continued struggle to balance cost, safety and competitiveness led to using PJ1 Track Bite in 2017 at Bristol Motor Speedway. Since then it’s been used (mostly successfully) at other tracks. So what is it […]
Aerodynamics
Brad Keselowski: The Smartest Driver in NASCAR
Brad Keselowski may not have an engineering degree or years and years of experience, but I’m ready to nominate him as the Smartest Driver in NASCAR. He is a man with a plan and it’s […]
Asphalt
How to Make Grippier Racetracks Using Spy Technology
If PJ1 TrackBite isn’t the Solution, What is? Dale Earnhardt, Jr. suggested tracks stop using PJ1 Trackbite because it didn’t work well in Charlotte last weekend. He called for additional research to understand how the […]
Asphalt
Thermography: A New Weapon in the NASCAR Arsenal
What’s Wrong With this Cow? Can you tell? If you said the cow is the wrong color, you’re close. But there’s more to the story. And What’s That Got to Do with NASCAR? Competition in […]
Aerodynamics
Composite Race Car Bodies
You Never Forget Your First One My first car was a greenish-brown 1969 Buick LeSabre with a 123-inch wheel base and a 230-horsepower two-barrel V-8. That puppy weighed about 4200 lbs and taught me everything […]