Engines

The Math of Fuel Mileage

I guess when you have people feeding you all the numbers you need through your earpiece, you think they’re easy to come by. That’s the only explanation I can figure out for the snarky comments by television commentators about crews not being “smart enough” to figure out how much gas to put in the car so that it doesn’t run out before the end of the race. There have been a lot of fuel mileage races the last few weeks. Pocono is traditionally also highly likely to be a fuel mileage race, so let’s clarify how easy (or hard) it is to not run out of fuel. […]

Aerodynamic Forces

Overpressured Shocks on the 5-Car: How Does that Create an Advantage?

The 5 car got sent to the back for the start of the race last Sunday at Dover after qualifying third when their shocks didn’t clear post-qualifying inspection. Shocks and springs work together to control the rate at which the body of the car moves. The ideal attitude is the hound dog position: nose down, tail up, as demonstrated in the photo at right by my capable assistant Darwin. That position prevents air from getting underneath the car and it sticks the spoiler up in the air as much as possible, which means that more air hits it and creates more downforce. […]

Aerodynamics

33 car penalties

After being a non-event (The 33 car from Richmond was “just barely legal” and NASCAR was checking with RCR to make sure they didn’t have a mistake on their build sheet) for a couple of days, the situation changed today when a 150-point, $150,000, 6-week crew chief/car chief suspension was announced based on violations from the New Hampshire car. […]

A map from FEMA, showing where tornados are most likely to strike
Talladega Superspeedway

Tornadoes at Talladega

Tornadoes are a primarily North American phenomenon. The U.S. has about four times as many tornadoes as all of Europe (excluding waterspouts and if you ever lived in Nebraska, you know why).   North America […]