The winter test at Sebring International Raceway has come and gone. Now, IMSA is analyzing the data from the two days of TUDOR United SportsCar Championship testing and other off-track activities to determine if additional balance of performance needs exist prior to the 62nd Annual Mobil 1 Twelve Hours of Sebring Fueled by Fresh From Florida on March 15.

“We’re going through the process to see if the changes we made going into the test were correct,” said Scot Elkins, IMSA vice president, competition and technical regulations. “We’re gathering all the data, and feeling pretty good about it.”

The test involved more than on-track activities. IMSA took examples of the Ford, Chevrolet and Honda Prototype (P) engines to the engine dynamometer in Concord, N.C., prior to the testing, establishing new restrictor sizes for the Daytona Prototype cars. On Monday, the Starworks Honda DP, Michael Shank Racing Ford EcoBoost DP and Wayne Taylor Racing Corvette DP went to the Windshear Wind Tunnel in Concord to validate the high-downforce setups that were used at the test.

Sebastien Bourdais set the fastest lap of the test, running 1:52.480 in Action Express Racing’s No. 5 Corvette DP. The next eight Prototypes were separated by less than eight-10ths of a second, including three P2 cars (OAK Racing Nissan, Extreme Speed Motorsports HPD Honda and Muscle Milk/Pickett Racing Nissan), the Spirit of Daytona and Wayne Taylor Racing Corvette DPs, and Chip Ganassi Racing with Felix Sabates and Michael Shank Racing with Curb/Agajanian Ford EcoBoost DPs.

“Sebastien definitely knows his way around Sebring, and the Action Express guys tested a lot in the November test at Sebring,” Elkins said. “That gave them a step up on everybody else. It’s closer than it was, but it’s still not close enough yet. We still have some work to do.”