Rain Tires
A drawing from U.S. Patent 7168880 showing an idea for a safety barrier for pit wall ends.
Auto Club Speedway of California
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 […]

Header with a quantum corral, Keselowski at the KAM launch, and a 3d-printed prosthetic leg
Aerodynamics
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
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 […]

Charlotte Motor Speedway
Aerodynamics