Kiwi IndyCar driver Scott Dixon is expecting a tough start to his 2017 year with his Chip Ganassi team making a switch of engine supplier this off-season.
The team has used Chevrolet engines since 2014 but will move back to Honda, who they had previously had a long-standing relationship with.
Dixon, who finished a disappointing sixth in this year's championship, admits they will need to temper expectations early in the season.
"It will be a very steep learning curve for us just for the sheer fact most of the other teams have stayed stagnant for the last two years and we are the only ones that are shifting," the 36-year-old said. "We'll be on the back foot for a little bit.
"I think Foyt is the only other one that has made a move and that is from Honda back to Chevy."