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Restrictor Plates are Larger for Daytona

With a larger restrictor plate at Daytona, can faster speeds be far behind?
Sprint Cup teams will start the Coke Zero 400 weekend at Daytona International Speedway using restrictor plates with holes 1-1/32nd of an inch in diameter, 3/64ths of an inch bigger than the plates used in the Daytona 500 in February, when the Cup cars still had rear wings.

NASCAR replaced the wing with a rear spoiler in March.

The bigger the holes, the more air that flows through the engine and the more horsepower generated.

“We think this will be a needed boost due to the additional drag we've picked up since switching from a rear wing to a rear spoiler,” NASCAR vice president of competition Robin Pemberton said Monday.

NASCAR can change the size of the restrictor plate up until race time.

“I think a bigger plate is a good change,” said David Reutimann, who finished fifth in the 500. “I know that NASCAR has put a lot of thought into that stuff. We are talking about very, very small changes. We're not talking about going from one inch to two inch.

“Anytime the plate gets bigger the horsepower goes up—and I'm a fan of that. With the new configuration of the spoiler on the back I think it's a good fit for what we're trying to do.”



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Close Finish at Daytona
Jimmie Johnson, driver of the #48 Lowe`s Pro Services Chevrolet, and Clint Bowyer, driver of the #15 5-hour Energy Toyota, lead a pack of cars during the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Brian Lawdermilk/Getty Images)
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Denny Hamlin, driver of the #11 FedEx Ground Toyota, and Kyle Busch, driver of the #18 Skittles Toyota, lead the field past the green flag to start the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Brian Lawdermilk/Getty Images)
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Joey Logano, driver of the #22 Shell Pennzoil Ford, takes the chequered flag to win the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Jeff Zelevansky/Getty Images)
Joey Logano, driver of the #22 Shell Pennzoil Ford, celebrates with the chequered flag after winning the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Gregory Shamus/Getty Images)
Joey Logano, driver of the #22 Shell Pennzoil Ford, celebrates with a burnout after winning the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Gregory Shamus/Getty Images)
Joey Logano, driver of the #22 Shell Pennzoil Ford, celebrates in Victory Lane after winning the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Sean Gardner/Getty Images)
Joey Logano, driver of the #22 Shell Pennzoil Ford, celebrates in Victory Lane after winning the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Sean Gardner/Getty Images)
Joey Logano, driver of the #22 Shell Pennzoil Ford, celebrates in Victory Lane after winning the NASCAR Sprint Cup Series IRWIN Tools Night Race at Bristol Motor Speedway on August 22, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Jeff Zelevansky/Getty Images)
Dale Earnhardt, Jr., driver of the #88 Nationwide Chevrolet SS, finishes in ninth place Saturday night, August 22, 2015 in the NASCAR Sprint Cup race at Bristol Motor Speedway in Bristol, Tennessee. (Photo by Harold Hinson/HHP for Chevy Racing)
Kevin Harvick, driver of the #4 Budweiser/Jimmy John’s Chevrolet SS, finishes in second place Saturday night, August 22, 2015 in the NASCAR Sprint Cup race at Bristol Motor Speedway in Bristol, Tennessee. (Photo by Harold Hinson/HHP for Chevy Racing)
Jimmie Johnson, driver of the #48 Lowe’s Pro Services Chevrolet SS, finishes in fourth place Saturday night, August 22, 2015 in the NASCAR Sprint Cup race at Bristol Motor Speedway in Bristol, Tennessee. (Photo by Rusty Jarrett/HHP for Chevy Racing)
Kevin Harvick, driver of the #4 Budweiser/Jimmy John’s Chevrolet SS, finishes in second place Saturday night, August 22, 2015 in the NASCAR Sprint Cup race at Bristol Motor Speedway in Bristol, Tennessee. (Photo by Harold Hinson/HHP for Chevy Racing)
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Kyle Busch, driver of the #54 Monster Energy Toyota, celebrates in Victory Lane after winning the NASCAR XFINITY Series Food City 300 at Bristol Motor Speedway on August 21, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Matt Sullivan/NASCAR via Getty Images)
Kyle Busch, driver of the #54 Monster Energy Toyota, celebrates with a burnout after winning the NASCAR XFINITY Series Food City 300 at Bristol Motor Speedway on August 21, 2015 in Bristol, Tennessee.  (Photo Credit: Photo by Gregory Shamus/Getty Images)

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