Gibbs' Nationwide teams face penalties

BROOKLYN, Mich. -- Joe Gibbs Racing's two Nationwide Series teams face penalties after NASCAR officials caught them trying to mask engine strength during a dynamometer test after the Carfax 250 at Michigan International Speedway.

Gibbs crew-members placed magnetic spacers on the gas pedal stops of the Toyotas driven by Tony Stewart and Joey Logano after Saturday's race to lower horsepower readings in postrace dynamometer tests. Robin Pemberton, vice president of competition for NASCAR, said NASCAR inspectors discovered the shims at the test.

"It was magnets that were about a quarter-inch thick that prevented the accelerator from going 100% wide open," Pemberton said Sunday. "The intention was to manipulate the numbers that we get when we get our information and data off the dyno."

Team owner Joe Gibbs said the team would investigate the allegations.

"We will take full responsibility and accept any penalties NASCAR levies against us," ...