Today, following a hearing on the issues, a three-person panel denied a protest filed April 18 and upheld INDYCAR’s decision to approve use of a 0.74 A/R compressor cover for the single turbocharger.

The hearing of the protest in Indianapolis was conducted by a panel consisting of Hans Peter Kollmeier, Jack Snyder and Jim Voyles.

“Chevrolet filed a protest as permitted by the IndyCar rules to an April 18th decision by INDYCAR to allow a modification to the turbocharger used by another engine manufacturer," said Jim Campbell, U.S. Vice President, Performance Vehicles and Motorsports. "Chevrolet believed the modification was contrary to the applicable series rules, and asked INDYCAR to thoroughly review the issue so that the rules were applied fairly.

"We respect the diligence of the panel appointed to hear the protest and examine the situation. While we are disappointed with today's decision, we are prepared to continue to compete at the highest level in the IZOD IndyCar Series.”

Per Rule 13.3.2 of the IZOD IndyCar Series rulebook, the decision may be appealed by 5 p.m. (EDT) of the second business day following the release of the decision.