2011 Michigan Dirt Cup Allstar Performance Modified Tour Rookie of the Year Collin Thirlby of Traverse City, MI joined Dirt Cast to talk about his start to 2012, how things have changed since winning the rookie of the year, his progression as a modified driver, seat time being a big help, traveling, competing against the best in UMP, how it has helped him understand more at the track, the competition in Michigan, his runs in the last week of the Summer Nationals, making four out of four events, getting a win in Michigan Dirt Cup competition, the upcoming back to back weeks on the tour and his expectations for the season. Thirlby drives the #47 Thirlby Automotive Diamond.

To listen visit: http://www.dirtcast.com/YiQj/sound-o...rt-cup-071912/