Chad Walter has joined Michael Waltrip Racing as director of race engineering.
Walter most recently led the No. 22 Penske Racing team and Sam Hornish in the Nationwide Series. He won races with both Hornish and Justin Allgaier and coached both drivers to fourth-place finishes in the NNS point standings.
The 41-year-old Albion, N.Y. native was replaced by Greg Erwin at the end of last season. Prior to joining Penske Racing in 2009, Walter worked at Hendrick Motorsport with Kyle Busch, Jimmie Johnson, Dale Earnhardt Jr. and Mark Martin. Walter coached Busch and Martin to Nationwide Series wins and guided Ron Fellows to victory at Montreal.
Walter, who attended Cornell University, replaces Steve Boyer at Michael Waltrip Racing. Boyer joined MWR two seasons ago but has returned to the private sector.