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Almquist, Kirk
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Biffle, Greg

Secrets of the Gen-6 Car: Superstrength Windshields

A number of drivers have sounded a common refrain: the CoT was engineered to be safe … and that’s why it was… well… sort of ugly and not very racy. The Gen-6 car is a much better looking vehicle and (once the teams get a handle on the engineering) it should also give us a better show. But don’t let its looks fool you: NASCAR did not forgot safety in the Gen-6 car. […]

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Grass

Hey Larry Mac! Cars Do Not Speed Up in the Grass!

Ever had one of those things that you never noticed before, but when someone brings it to your attention, you notice it and it drives you crazy? Frank Smith emailed me about an observation made by television commentators that was driving him nuts. Now that he mentioned it, I keep hearing it and it’s driving me nuts, too.

Not to denigrate Larry Mac and the other television commentators. I’ve learned a lot from Mr. McReynolds. There’s a perfectly good physics explanation for why he (and others) keep telling us that cars speed up when they get into the grass on a racetrack.

Assuming that the driver has the presence of mind to take his foot off the gas, this is impossible. […]

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Andy Randolph

Kansas Wrap Up: What Caused all the Engine Failures?

The defining characteristic of the Kansas race was the surprising number of engine problems. Many of those problems can be attributed to the change in rear gear from a 3.89 to a 4.00. At 190 mph at a track like Kansas, your wheels make 2270 revolutions per minute (rpm). If you watch the telemetry on the television broadcast, you know that the engine is rotating around 9500-9900 rpm. Since the engine is attached to the wheels, there has to be something to change the rotation rate between the engine and the gears. […]

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Andy Randolph
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Browne, Josh

Is Tire Fall-Off the Way to Fix “Broken” Tracks?

There’s been an awful lot of talk recently about changing the layout at various track to make racing more exciting. Bristol is the most-talked-about track, with Bruton Smith planning a $1M revamp of the track to take it back to the way it was before he changed it in 2007. […]

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Childers, Rodney

Phoenix: Relay Race?

The race at Phoenix was the first non-restrictor-plate race. A number of drivers experienced engine-related problems, leading some media outlets to start blowing the “EFI problems” horns as loudly as possible. Mark Martin, the pole sitter, was an unfortunate casualties of a “flipped circuit breaker”. One of the most interesting exchanges to me was a series of tweets and a radio interview with Mark Martin’s Crew Chief Rodney Childers (@rchilders55) in which Childers repeatedly said it not “an EFI problem”, the radio commentators persisted in saying that it was. […]

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Gideon, Tom
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Dean Sicking
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Dean Sicking