Air Pollution

NASCAR and Electric Cars, Part II

It’s not quite January, but it’s close enough. The month is named for Greek God Janus, who has two faces: one looks to the past and one that looks to the future. The off-season is a […]

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 […]

Center of Gravity

NASCAR Science 101: The Center of Gravity, Part I

You hear engineers and crew chiefs talking a lot about the racecar’s “center of gravity”. There’s a reason for all the talk. The center of gravity really is the point around which everything else on the […]

Drivers

The Virtual Reality of Racing Simulators

You are hurtling down the frontstretch at Michigan, your speed approaching 215 mph. Your seat moves up and down as you hit the seams, but your focus is squarely on getting into Turn 1 losing as little speed as possible. You squeeze the brakes and feel yourself moving forward, only to realize that you’re still moving too quickly. As the car starts to head toward the wall, you panic and squeeze the brake even harder.
The car snaps loose and the next thing you feel… is an engineer’s hand on your shoulder. You turn around to see her barely suppressing a smile. […]

Center of Gravity
Aerodynamic Forces

The Flap over Roof Flaps

Why Roof Flaps? Roof flaps (the invention of which I detail in my book The Physics of NASCAR) help keep cars on the ground.  This is necessary because of Bernoulli’s law, which says basically that: Faster-moving […]

Center of Gravity
Aerodynamics