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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...

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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...

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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...

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Why You Don’t Mess With Fuel Cell Foam

We'd been hearing rumors of penalties stemming from Kansas and everyone expected them to be announced Tuesday. Since penalties usually have some scientific component, I was sort of hoping for some new...

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Do Tires Affect Gas Mileage?

When winning means a few hundredths of a second, nothing is too small to be ignored. I’ve talked a lot about energy and the importance of using it as efficiently as possible in racing. Gasoline...

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Infographic: Fuel Mileage Races

Well, it finally happened. They made it so easy to made an infographic, even I can do it. It's not perfect - the tool I used doesn't like graphs with fractions, so I couldn't get it to give me any...

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Estimating Fuel Mileage

Last week at New Hampshire, Kevin Harvick easily had the most dominant car, but failed to win the race. They ran out of fuel with three laps to go and finished 21st. The #4 team wasn’t the only team...

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NASCAR and Energy Efficiency

It never fails. When I give a talk about The Science of Speed at a University science department (as opposed to a talk for the public), someone will ask "How can you advocate for NASCAR? They're the...

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The 2019 Rules Package: The Tapered Spacer

NASCAR announced the 2019 rules package last week. Reactions from fans ranged from wait-and-see to despair to a surprising amount of anger. The 2019 package is similar to the package was tested at the...

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