Every week at least one driver says they are bringing back “the same car we raced at…”. But unlike Indy or ALMS racing, each shop builds multiple cars, each specialized for a specific track. Let’s […]
In my last post, I detailed how the relays in the ECU system allow the system to flip to a default engine map. This lets the team keep running, even when something fails, and it decreases the chances of the ECU doing something that blows up the engine. Here’s a short explanation of what exactly an ‘engine map’ is and what it does. […]
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. […]
Although there is a lot of science behind bump drafting, the act of bump drafting is an art. Even the experienced bump drafters are surprised by the touchiness of the cars this year. […]
One thing you will hear a lot as soon as coverage of practice starts Wednesday will be speculation about possible changes to the pop-off valve on the radiator. What is a pop-off valve and how will it affect the Daytona 500? Here’s the answer: […]
As we turn on the (new) engines to start the season, the twitterverse is getting even more full of people debating the NASCAR EFI system. Is it like the EFI in production cars? Is it throttle body? Is it multiport? Here are the answers: […]
The short answer: Carbs suck and EFI squirts.
The long answer can be found in the video that follows. […]
TNT is offering a million dollars to anyone who picks the top ten drivers – in order – at any of the six NASCAR races they broadcast. You have up until 25% of the race has been run to lock in your selections, which means up to mile 100 at Daytona this weekend. How likely are you to win? […]
The NASCAR pundits have again simplified a complex situation. Incorrectly.
The NASCAR Net is a-twitter since FOX floated a trial balloon about moving races from ESPN to SPEED. I’ve heard the argument over and over, in print and on radio that this is a bad idea because EPSN is in 100 million homes and SPEED is in “only” 78 million homes. They argue this would be a decline of 22 million potential viewers. The question not being asked how many of those 22 million ESPN watchers are actually potential viewers? […]
The big news for Pocono is that drivers can shift…again. Which brings up the obvious dual questions of: Why would you want to? and Why didn’t you before? […]
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