When Can I See You Again Choreography
Richmond was our outset hazard to find Joe Gibbs Racing's new pit-terminate choreography under race conditions. Let's look at how much of an advantage this new arroyo offers now, and potentially in the future.
But the facts
Three numbers fabricated the rounds after the Richmond race:
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Kyle Busch's team performed a 4-tire-and-fuel pit terminate in 9.1 seconds on Lap 234.
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Denny Hamlin'due south Lap 354 pit cease took only 9.4 seconds.
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Kevin Harvick's final stop at Lap 353 was 9.nine seconds.
JGR provided these numbers. Their measurement starts when the motorcar stops in the pit stall and ends when the motorcar starts moving again. That's a standard training metric considering it focuses on the pit crew's execution.
NASCAR timing and scoring measures from when the motorcar enters the pit box to when it leaves the pit box. Looking at the aforementioned 3 stops as above simply using NASCAR's numbers:
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Kyle Busch's Lap 234 pit stop took x.0 seconds.
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Hamlin's Lap 354 stop was timed at 10.4 seconds.
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Harvick's terminal stop was 10.7 seconds.
NASCAR'due south numbers account for drivers who get into the box faster or have off slower. Although Hamlin's stop was 0.five seconds faster than Harvick'south (using JGR's measurement), it was just 0.3 seconds faster when nosotros consider getting into and out of the box.
Although Kyle Busch's stop was heralded for its speed, NASCAR reports William Byron's four-tire stop on lap 234 every bit nine.97 seconds — 3-hundredths of a second faster than Busch's fastest stop.
Outside the Box
The pit stop per se is just 1 component of a trip down pit road. The driver must navigate traffic (if pitting under light-green) and not make a commitment line violation. In one case on pit road, he must continue the automobile as close to the pit road speed limit as possible without going over. He has to locate his pit box and become to information technology without hitting other cars or crew members. He has to stop at the right place in the box, angling the motorcar as best he can for a speedy departure.
After the crew changes tires and adds fuel, the driver must exit the box without striking other cars or crew members. He again must go as fast every bit possible without incurring a speeding penalty.
Both coming in and going out, the driver besides has to exist aware of timing lines. Depending on the location of the lines relative to the pit box, a commuter can briefly go faster than pit road speed without his average speed being over the limit.
At that place's a lot more to pitting than just watching a row of colored dots on the dash.
If we now include time on and off pit route for the aforementioned three stops we've been discussing:
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Kyle Busch's Lap 234 total pit time was 38.6 seconds.
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Hamlin's Lap 354 total pit fourth dimension was timed at 39.05 seconds.
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Harvick'due south total pit time was 39.14 seconds on his last terminate.
Let's compare the final ii of these stops head to caput
Harvick was 0.24 seconds faster getting to and from his pit box relative to Hamlin on their last stops. While Hamlin's pit crew may accept been 0.5 seconds faster, the overall divergence in pit times was less than a 10th of a second.
But if Hamlin's coiffure hadn't earned him an reward, Harvick might have gotten out alee of Hamlin. NASCAR is a sport of tenths and hundredths of seconds. Every 10th of a second gained on pit road makes the gap between the driver and the machine in front of him a tenth of a 2d smaller. Or gives him an additional tenth of a second gap between him and the motorcar chasing him.
What we learned in Richmond
We gained only a fleeting glimpse of the technique last weekend. With a limited number of pit stops and the combination of different pitting strategies with dark-green-flag pit stops, it'southward difficult to quantify the real advantage.
"I'm a little bit disappointed everything seemed like information technology was green flag stops considering I think some of the pit stop speed got lost in that," Brian Haaland, pit coach for JGR told NBC Sports' Dustin Long after the race. "If you lot were under circumspection and they were lined up one subsequently another, y'all would take seen some big-fourth dimension gains on pit route."
These stops offered a trial-past-fire for the pit crews. Rear tire changers aren't used to jumping out in front of a pitting racecar. Yep, they've expert and adept, but pit exercise drivers don't come up in as hot as Denny Hamlin or Kyle Busch during a race.
The new pit stop choreography is a little more complicated than the traditional pit cease. That ways more places for things to go wrong, and more than practise required for everyone involved. Bubba Wallace'south No. 23 team decided to stick with the former pit stops afterward its car chief was sent domicile. The car chief was to take helped maneuver the air gun hoses backside the wall. The team didn't feel confident subbing in someone else.
"These jobs behind the wall are just as important every bit what we're doing on the other side of the wall," Haaland noted.
That the procedure is more than complicated may be a boon for JGR. Given that other teams volition likely copy their choreography, JGR hopes that their eight months of practice volition give them an advantage — at least for a little while.
An additional tool, not a replacement
Although the new technique is faster, information technology tin't be used everywhere — or even every fourth dimension. NASCAR first allowed rear tire changers to move in front of the car at Atlanta, but almost stops at that place were for ii tires. COTA'south pit road was just too narrow. Richmond provided the start 'just right' location. At Richmond, all iv JGR teams chose pit boxes with openings or unused stalls on one side.
But fifty-fifty at tracks where the technique is feasible, information technology might non be optimal in every pit stall. Martinsville'south small size requires situating some pit stalls in the turns. That can make it difficult for the coiffure to run into the motorcar coming in — and vice-versa. Dale Jarrett, in the NASCAR on NBC podcast, expressed concern about pit crew safety in general nether the new choreography.
Finally, if the crew chief wants to make adjustments, the pit crew will utilize the traditional pit finish pattern. The new choreography is not a superior way to do pit stops. It is an alternative approach that potentially offers an reward in some cases.
Pit stops depend on many factors. It's rare for a team to get all of them perfect on a unmarried stop. Teams effort to save as much time as possible so that, when information technology really matters, they can be as shut to perfect as possible.
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Dr. Diandra: The potential impact of changing pit end choreography originally appeared on NBCSports.com
Source: https://sports.yahoo.com/dr-diandra-potential-impact-changing-140027351.html
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