From the Marbles - NASCAR

How much difference will 3/64ths of an inch make in racing? We're about to find out.

At this summer's Coke Zero 400 at Daytona, NASCAR will allow teams to use a restrictor plate with 1 1/32nd-inch openings, up from the 63/64ths of an inch at the Daytona 500.

The reason for the change? The spoiler, which is creating more drag on the cars since its implementation earlier this year. 

"We think this will be a needed boost due to the additional drag we've picked up since switching from a rear with to a rear spoiler," NASCAR Vice President of Competition Robin Pemberton said. (See? I wasn't lying to you.)

Restrictor plates have been used at Daytona and Talladega since 1988 to prevent cars from sailing into the grandstand. Back then, the plate had one-inch openings. The plate is designed to restrict air flow into an engine, cutting into its power and, theoretically, keeping it on the ground — though Carl Edwards and Kyle Busch, among others, might say differently. That above photo is Kyle in mid-wreck from last year's Coke Zero 400, which, as you may recall, ended in phenomenally dramatic fashion and quite possibly cost Kyle a berth in the Chase.

The tiny openings won't make a huge difference, but hey, any little bit helps. Let's just hope the cars stay on the ground most of the time.

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