Electronic Fuel Injection
Did EFI Make NASCAR Engines More Reliable?
In 2012, NASCAR moved from carburetors to Electronic Fuel Injection (EFI). This made people like me happy because my friends who denigrated NASCAR as hopelessly outdated and behind the times have one less argument to use against me. There were many purposes for the switch to EFI: one was precisely as I note above: to be […]
NASCAR and Electric Cars: A Response to Bill Nye
Bill Nye is getting a lot of press lately by suggesting NASCAR ought to be racing electric cars. I was rather disappointed with the reaction from NASCAR fans, as many dismissed the suggestion offhand, or offered ad hominem attacks on Nye. Firing off Twitter insults only reinforces the stereotype of NASCAR fans as […]
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 biggest waste of gasoline.”
Or something similar.
I’m going to look at this in two ways. People often confuse how much energy is used with how efficiently energy is used. One way to cut back on energy usage is to use less energy, but it’s also possible to use less energy by using the energy more efficiently.
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 that gambled on gas, but they were probably the team that […]
How Can Changing Horsepower for Everyone Make Racing More Competitive?
I get this question a lot: If NASCAR decreases horsepower for everyone, how does that make it easier to pass? You’re basically taking everyone down by the same amount, right? To explain this, we have to touch on a couple concepts. Moody asked me this a couple weeks ago and I […]
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 in the pictures is a tube that connects the nozzle at the top with the […]
Engine Rules Changes for 2015
There’s a lot of talk about all the rules changes for 2015. The limiting of the horsepower has been a hot topic of discussion, with people suggesting that NASCAR is basically mandating spec engines. Here’s a couple of things to think about in terms of engines as we get closer to […]
Exotic Materials in NASCAR Engines?
I was at a panel discussion some years ago at a motorsports engineering meeting about materials allowed on the car by different racing series. They had the tech people for IMSA, F1, Indy and NASCAR up there answering questions from the audience. NASCAR gets a lot of ribbing because compared to, […]
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.