Greg Erwin was born on the 19th of April 1970 in the town of Hatboro in Pennsylvania. His interest in cars began a young age when his father bought his race car while Greg was still in high school. His summers were spent working on the car and helping to build a team for his father while combining his hobby with studying at Clemson University where he earned himself a degree in engineering in 1992. Gaining a Motorsports engineering scholarship he went back to graduate school in 1993 and it was through this partially Ford funded programme he was able to work with race teams such as Ti-Star Motorsports.
Greg made his first venture into NASCAR when he was offered employment to work as an engineer with Diamond Ridge Motorsports in 1995. He took the opportunity but left the team at the end of that year to join Team SABCO and only months after joining the new team SABCO expanded from one to three teams and Greg became the only engineer to work with all three teams. He enjoyed the job and stayed with the team, now called the Chip Ganassi Racing with Felix Sabates, until the end of the 2002 season when he left to join Richard Childress Racing for the beginning of the 2003 season, working with the research and development team. Greg stayed with the team until the end of the 2004 season.
In May, 2005, Greg was offered his first crew chief job working with Robbie Gordon Motorsports and the #7 team. The team did well this first season, gaining one Top 5 and two Top 10 finishes. In 2006 the team qualified for every race and Greg and Robbie earned one Top 5 and three Top 10 finishes for their efforts. Greg grabbed the opportunity when, in 2007, he was offered the position of crew chief at Roush Fenway Racing to lead the #16 team with Greg Biffle at the wheel. The two Greg’s went to victory lane in September at Kansas Speedway. This was their first race together and the pair went on to gain four Top 5 and nine Top 10 finishes and finished 14th in the final point standings for the year. With Greg at the helm the #16 team had even more success in 2008, the team visited the victory lane twice and earned an amazing twelve Top 5 and seventeen Top 10 finishes, ending the season 3rd in the final point standings. More success followed and by the time that Greg left the team in 2011 he had guided the team through to five victories, thirty six Top 5 and sixty six Top 10 finishes. The team also qualified for the NASCAR’s Chase for the Sprint Cup every year that Greg led them for a full season which was three times with a best finish of 3rd in 2008. Greg left Roush Fenway Racing in July of 2011 and joined Richard Petty Motorsports, replacing Mike Shiplett as crew chief for the #46 Ford Fusion with driver, AJ Allmendinger. “When one door closes, another one opens and this is great example of that,” Erwin said. “I couldn’t be happier to have found a new home at Richard Petty Motorsports. To work with Richard Petty and lead the iconic No. 43 team is a great opportunity for me. A.J. Allmendinger has shown that he has a great deal of talent and I’m excited to have the chance to get the No. 43 team back to Victory Lane.” Erwin is married to wife, Susan, and they have three children: Curtis, Kimberly and Colin. The family lives in Mooresville, North Carolina.