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CONCORD, NORTH CAROLINA - NOVEMBER 17:  Ryan Blaney driver of the #12 Team Penske Ford drives during NASCAR Cup Series Next Gen testing at Charlotte Motor Speedway on November 17, 2021 in Concord, North Carolina. (Photo by Grant Halverson/Getty Images) | Getty Images
CONCORD, NORTH CAROLINA - NOVEMBER 17: Ryan Blaney driver of the #12 Team Penske Ford drives during NASCAR Cup Series Next Gen testing at Charlotte Motor Speedway on November 17, 2021 in Concord, North Carolina. (Photo by Grant Halverson/Getty Images) | Getty Images

Next Gen Car Losing An Inch of Spoiler, Expected to Add Horsepower

NASCAR will make a spoiler change for Thursday’s Next Gen organizational test, seeking to increase the speed of the cars.

NASCAR will cut the spoiler from 8 inches to 7 inches for Thursday’s session on the Charlotte Motor Speedway oval. The resulting speed change is expected to be the equivalent of adding 30 horsepower.

John Probst, NASCAR senior vice president of racing innovation, said the adjustment will be made to offset a previous change to the car. To counter the increased heat drivers had experienced in the cars, rear window vents were added to increase air circulation through the cockpit. While reducing the extreme heat in the car, the rear window adjustments add drag and slow the car.

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