Rise and Run Related to Slope
Drivers

Retirements, Replacements and Rookies

Retirement He didn’t use the word ‘retirement’, but the sad news last week was that Matt Kenseth won’t have a Cup ride in 2018. It’s partly his choice. He could have done a Kasey Kahne […]

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 […]

Aerodynamics
Building Cars

Safety vs. Speed: 2017 Changes to the Chassis

The Evolution of the Stock Car ADDITION: If you are more comfortable with Portuguese, check out this translation by Artur Weber and Adelina Domingos – and thanks to them for being interested enough in my […]

Aerodynamic Forces
Acceleration
Auto Club Speedway of California

Driving Concussed

Driving Concussed This week brings the return of Jeff Gordon to the track, but under conditions I’m sure all of us wish were otherwise. Dale Earnhardt, Jr. is out again (and will be next week) […]

Drivers

Are Smaller Drivers Better?

It’s always a strange feeling when you meet people you’ve seen on television or heard on the radio. You develop a picture of them in your mind and then you meet them and they’re not at all like you expected. Sometimes you expect them to be jerks and they surprise you and are absolutely lovely people. When I met Jeff Gordon the first time, the surprise was that he’s not much taller than I am. […]

Gordon, Jeff
Collisions

NASCAR Drivers’ Risky Behavior and the Peltzman Effect

The introduction of automotive safety innovations is usually accompanied by concern about the side-effects of those innovations. For example, when seat belts were introduced, people worried that the belts would keep them from getting out […]