Two-time NASCAR Cup Series champion Kyle Busch is one of three drivers conducting two days of tire testing at the Iowa Speedway leading up to the August third Iowa Corn 350. The goal is to help Goodyear to provide the information needed to find the ideal compound.

Weather limited the drivers to about two and a half hours on the track on Tuesday and Busch says it can take several hours to get the answers.

Chase Briscoe won an Xfinity Series race at Iowa in 2019. He finished 28th a year ago in the Cup Series debut at the track.

Briscoe says calculations are made on how the tire will react when the racing begins.

Briscoe is looking forward to returning with the Cup Series.

Austin Cindric has a win at Talladega this season and says the drivers used several different types of tires.

Cindric says getting early track time can be a plus when race weekend arrives.