Braun paces final day at Daytona.

Teenager Colin Braun posted the quickest time at Daytona on Tuesday as the two-day Grand Am Rolex Series test session drew to a close in damp weather conditions.

While the lap-times weren't as quick as those posted on Monday, Braun was quickest on the day with a time of 1min 43.947secs at the wheel of the #76 Krohn Racing Pontiac Riley, which was good enough to edge out Max Angelelli in the similar entry of SunTrust Racing but just 0.004secs – Angelelli having set the pace during the two sessions on Monday.

The Krohn team, like others, headed to Daytona International Speedway to turn laps in preparation for the Rolex 24, as well as get acquainted with the new BOSCH ECU. The team also dropped Pontiac power plants in the #75 and #76 Krohn Racing for the test, and although they haven't officially announced a switch from Ford to Pontiac, the team is optimistic with the results.

"Nothing has been announced yet," said team manager Jeff Hazell. "The test has gone okay. We should have announcements for cars and driver line-ups in the near future, but we will have two Daytona Prototypes for the Rolex 24."

"The engine has been running good," said Steve Newey, engineer on the No. 76 machine. "But we knew it was going to. We've had a few hiccups with the new ECU, but we've been able to remedy the problems."

The team ran a Pontiac engine in the 2006 Rolex 24 At Daytona, finishing fifth with eventual Daytona Prototype champion Jörg Bergmeister, Colin Braun, Nic Jönsson and team owner Tracy Krohn, before switching to Ford power for Round 2 in Mexico City.

"Nothing has been announced yet," said team manager Jeff Hazell. "The test has gone okay. We should have announcements for cars and driver lineups in the near future, but we will have two Daytona Prototypes for the Rolex 24."

Last season, the team campaigned just one Daytona Prototype in the Rolex 24, adding a second car for the remainder of the season.