No Picture
Aerodynamic Forces

Skirting the Issue

Flared side skirts became an issue when social media started noticing them somewhere around Kansas. The fact that the most obvious example of this was on the 2 car and Brad Keselowski is rapidly taking over from Kyle Busch as most-love-to-hate driver in NASCAR may have brought the issue to the fore faster. […]

No Picture
Goodyear

The Kansas Monozone Tire

OK, so ‘monozone’ is just a fancy way of saying it’s the old tire.  It’s all in the branding, isn’t it? Goodyear has been experimenting with multi-zone tires since last year.  Multizone tires attempt to […]

No Picture
Bristol Motor Speedway

The Reason for Decreasing Cautions

This was the first year that most people noticed a decrease in the number of cautions, but (as I’ve pointed out), 2012 is merely the latest in a six-year trend of decreasing cautions. The same downward trend is evident in the Nationwide Series. This year is perhaps notable for it being so extreme.

The data clearly shows the trend: The question, of course, is why?

[…]

No Picture
Cautions

Are Cautions Really Going Down?

I honestly cannot help it – scientists are naturally skeptical. If you make an assertion, I will have to question you on what data you have that supports it. This is second nature to the people I work with, but I realize it is damned irritating to non-scientists (aka “normal”) people.

So when I started reading everywhere that “cautions were down 35%”, I had to go look into it. This is a preliminary post – more detailed analysis will follow as soon as I’ve read my students’ final projects and gotten comments back to them. […]

No Picture
Acceleration

Track Drying

I’ve gotten a couple questions about why it takes so long for a track to dry and why humid weather should make a difference, so here’s a short explanation. Air is a mix of gas […]

No Picture
Aerodynamics

Behind the Science of Speed

The Science of Speed video series is now up at www.science360.gov. We did a press conference at Texas Motor Speedway Friday April 3rd afternoon announcing the series. If you told me three years ago I’d […]