NASCAR XFINITY Series
Racing in the Rain
The NASCAR XFINITY race at Charlotte Motor Speedway — aka the Roval in the Rain — prompted some fans to suggest NASCAR ought to be able to race anywhere in the rain. But ‘can’ and […]
Weather
Climate Change
Why Use LED Lights at Martinsville?
This Wednesday is the first night race under the LEDs at Martinsville. Let’s look at their system and see why they decided to become the first major motorsports facility with a LED lighting. Illumenating Tracks […]
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
The NASCAR Vortex Theory
The NASCAR Vortex Theory says that cars racing around an oval track create a rotational disturbance that repels oncoming storms. Truth? Or Myth? What’s a Vortex? A vortex is a region in a fluid (and […]
Aerodynamics
Sciencing Out NASCAR Rules Changes
Rules changes in NASCAR are tricky. There’s really no way to test them before implementing them. You’re relying on the judgement and experience of the NASCAR team, with input from race teams, drivers, Goodyear and […]
Chicagoland Speedway
How NASCAR’s “Enhanced Schedule” Affects the Race Teams
NASCAR’s enhanced schedule compresses three days on on-track activity into two. It’s designed to save teams time and money, but how will it affect the racing? What is an “Enhanced Schedule”? If you’re wondering why […]
Centripetal Force
Racing without Friction
Daytona is an enormous, sweeping track. Two-and-a-half miles, 31-degree banking and corner radii of a thousand feet. The infield by itself is 180 acres. If you’ve ever been there (or Talladega), it really does take your breath […]
Busch, Kurt
Cooling Fuel: Safety or Performance Issue?
Temperatures at the Dover race were unseasonably high. Kurt Busch’s Stewart-Haas 41 team was told by NASCAR officials to remove “heat shields” from their fuel cans. The cans (shown at right) have an 11-gallon capacity. Not shown […]
Aerodynamic Forces
2015 Rules: Track Records I – The Example of Charlotte
@NASCARRealTime, @TheOrangeCone and @CircleTrackNerd had an interesting dialog when the 2015 rules were announced. They were debating whether the track records that are now standing are going to be essentially locked into history. The debate ended with an appeal to me and Goody’s Headache Powder. […]
Asphalt
Goodyear Tracking Change
Repaving is the last possible remedy a track wants to use, but when potholes (see: Daytona) show up, there is no choice but to tear up the old asphalt and replace it with new, fresh […]