The NASCAR rulebook: Here’s a look at current rear window rules

Should we expect a penalty for Kevin Harvick for the flexible rear window? Here’s a look at NASCAR’s rear window rules.

Today is judgement day for Kevin Harvick. Will he be handed a penalty? The rulebook says yes.

Kevin Harvick had a flexible roof and rear window at Las Vegas Motor Speedway. He led the majority of the event and cruised to victory lane as the roof snapped back into shape, like magic.

Since, Rodney Childers the crew chief for the #4 Stewart-Haas Racing machine has said it was a part failed. He insisted that it was just a brace failure and that the window was actually riding on the T Bar.

The rear window would fold down as Harvick reached near 200 mph range. Basically, it would only fold for a split second just before corner entry.

Related: Kevin Harvick’s rear window at Las Vegas (Photos)

UPDATE: Kevin Harvick has been penalized after Las Vegas win

Harvick’s crew chief insisted that the wind tunnel doesn’t ever get that much force in tests the team performs. Implying that he wouldn’t have known the window was going to do that at those speeds from wind tunnel data.

NASCAR Rulebook:
Rear Windows

Here’s the NASCAR rulebook:

20.4.8.1.b: “Installed rear window braces and supports must keep the rear window glass rigid in all directions, at all times and all NASCAR templates must fit correctly.”

Previous cases:
Is a penalty coming?

The crew chief claims his race winning car suffered a part failure. I’ve been told Rodney Childers is a stand up guy. So, I don’t have any reason to doubt him. However, it’s highly likely that none of that matters.

Upon reading the rule above, I still expect a penalty to be issued later today. Specifically, “must keep the rear window glass rigid in all directions.”

NASCAR isn’t known for saying, ‘it’s ok because you didn’t mean to do it.’ The rule will still be enforced regardless of how or why it was broken.

Carl Edwards and Dale Earnhardt Jr at las Vegas Motor Speedway - 2008
LAS VEGAS – MARCH 02: Carl Edwards, driver of the #99 Dish Network Ford, leads against Dale Earnhardt Jr., driver of the #88 National Guard/AMP Energy Chevrolet, during the NASCAR Sprint Cup Series UAW-Dodge 400 at the Las Vegas Motor Speedway on March 2, 2008 in Las Vegas, Nevada. (Photo by Harry How/Getty Images)

10 years ago, Carl Edwards suffered a similar issue. Ironically, that was also at Las Vegas Motor Speedway. In his case, the oil cap came off and disappeared on the race track. A penalty was issued days later. On March 5th, 2008, NASCAR determined that the car received an “aerodynamic advantage” from the missing oil cap.

Clearly, the team didn’t purposely remove the oil cap and I doubt something under the car was really much of an aerodynamic advantage. However, NASCAR still handed them a penalty anyway because they didn’t want teams to begin accidentally-on-purpose leaving their oil caps in the garage area.

100 points were erased from the championship standings plus Edwards also lost the 10 bonus points for winning the race. In addition, his crew chief was suspended for 6 weeks.

That was 10 years ago and a lot has changed in the world of NASCAR. In this specific area, the entire penalty structure has been adjusted with a level based penalty system. In addition, NASCAR is teching cars harder than ever in search of the ‘level playing field.’

First the LIS was introduced. That wasn’t strict or consistent enough. This year, NASCAR has gone optical and introduced an OSS machine which scans the entire car, opposed to the old template system.

Kevin Harvick passed pre-race inspection. He then went to victory lane which was followed by a post-race inspection. He passed that as well.

However, on Monday the car traveled all the way across the country to the NASCAR R&D Center in North Carolina. That’s where officials go through a handful of selected cars with scientific precision. It’s detailed to the point where the cars are actually stripped to the chassis.

Will they be penalized? “I wouldn’t think so,” Rodney Childers told Sirius XM NASCAR Radio on Tuesday.

One thing is for certain, it won’t be encumbered. That term was dropped from the NASCAR rulebook over the winter. However, the newly-unnamed penalty still exists in it’s exact same fashion.

A penalty report is generally released on Tuesday. However, with the extra day in travel time for west coast races, the penalty report for Las Vegas will instead be released later today.

All facts tell me that Harvick’s most recent win will be ‘encumbered’. I guess we’ll find out later today what the new name of the penalty is.

More

Related: Kevin Harvick’s rear window at Las Vegas (Photos)

Related: Encumbered term dropped from the NASCAR rulebook

Related: Dale Earnhardt Jr on Kevin Harvick’s rear window, “It’s incredible ingenuity.”

Related: #4 crew chief Rodney Childers discusses the rear window at LVMS

Related: NASCAR industry reacts to Kevin Harvick’s rear window

Related: Las Vegas Motor Speedway results – MENCS

Related: Kevin Harvick on victory burnouts, pre-race tech and penalties

Related: Stewart-Haas Racing crew chief changes his view of NASCAR’s OSS inspection; In favor

Related: Check out NASCAR’s new inspection station (Video)

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Kevin Harvick | LVMS | NASCAR

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