In 2017 Allen joined the Monster Energy NASCAR Cup Series #18 Team with Crew Chief Adam Stevens and 2015 NASCAR Sprint Cup Series Champion Kyle Busch. As of October 2017 Kyle Busch has 8 poles and 4 wins with over 1500 laps led and has qualified for the first two rounds of the season playoffs.

In December 2014 Allen was hired by Joe Gibbs Racing as a Race Engineer on the #54 NASCAR Xfinity Series working for NASCAR Crew Chief Chris Gayle and driver Kyle Bush where they went on to win 5 poles and 6 wins and lead of 1000 laps during the 2015 season. In 2016 Allen moved to the Joe Gibbs #18 team again with driver Kyle Busch where they won 9 poles, 10 wins and lead over 2,000 laps. NASCAR drivers that also drove the #54 and #18 in 2015 and 2016 included Boris Said, Bobby Labonte, Denny Hamlin, David Ragan, Owen Kelly, Drew Herring, and Matt Tift.

In 2012 Allen made his move to NASCAR where he was hired by RAB Racing with Brack Maggard as the race engineer for the #99 car driven by Alex Bowman. Allen was teamed up with veteran Crew Chief Chris Rice where they finished the 2012 season with two top 5s, five top 10s, and six top 15 finishes

In late 2011 Allen went to work for Venturini Motorsports where he volunteered as a shop helper. He was quickly hired and started work as a shop mechanic, fabricating and building race cars in preparation for the 2012 season. Allen was assigned to Crew Chief Billy Venturini as Car Chief for the 2012 Season. Allen led chassis setup plate, pull down rig analysis and simulation, including wind tunnel aerodynamic testing. Allen was soon promoted to Car Chief working for Billy Venturini and driver Brennan Poole where they had a successful ARCA season with 2 wins, 3 poles, 5 top 5 and 15 top ten finishes.

Allen supported his racing working for ROMAC Industries where he was a Product Development Engineer responsible for the design, prototyping, component testing, manufacturing, production tooling development and cost analysis of a new product called the PIRANHA. Allen left ROMAC at the end of 2010 to move to North Carolina and pursue his dream of working in NASCAR.

In September 2010 Allen was chosen as part of the Richard Petty Driver Search I. Allen competed against 12 other drivers from around the world for a chance to race in the ARCA Racing Series for Richard Petty Motorsports. Allen drove to a fifth overall finish, taking first in Mechanical and Marketing categories of the driving competition.

In 2007 Allen was accepted to the University of Washington School of Mechanical Engineering. As part of his engineering studies, he joined the UW Formula SAE team and was assigned to the suspension design team. While attending school, Allen started Allen Racing and began driving Limited Late Model Stock cars. Allen competed for three years at South Sound Speedway where he completed his third year finishing second in points for the South Sound Limited Late Model championship. In 2010 Allen finished his racing in the Pacific Northwest competing at Evergreen Speedway in the NASCAR Whelen All-American Series.

Tyler Allen (born November 15, 1987) is an American NASCAR race engineer. He is employed at Joe Gibbs Racing as the Race Engineer for the No. 18 Monster Energy NASCAR Cup Series Toyota Camry driven by Kyle Busch. Allen has worked in NASCAR since 2012. Allen started his career with Venturini Motorsports in the ARCA Racing Series where he spent two years working as car chief on the No. 25 car of drivers Brennan Poole and Alex Bowman. Allen moved to RAB Racing where he was the Race Engineer for No 99 Nationwide Series Toyota Camry driven by James Buescher. Allen is a graduate of the University of Washington where he achieved a bachelor’s degree in Mechanical Engineering and was part of the UW Formula SAE team for 4 years.

The Allen racing gene comes from his grandfather Robert Allen. “Grandpa Bob” had started racing in the 1950s on the small dirt tracks of California, ultimately ending up racing Hydroplanes in the Pacific Northwest which led him to a National Hydroplane Championship in 1983. From a young age Allen was raised around the small tracks of the Pacific Northwest as his father Terry and two uncles Mike and John raced 1/2 sized stock cars.