Martinsville Speedway won’t make changes to track surface:

After trying a suggestion from a NASCAR Sprint Cup champion, Martinsville Speedway won’t make any changes to its track surface for its Chase race later this month. #4-Kevin Harvick suggested NASCAR use the same substance on Martinsville Speedway that was applied to Bristol Motor Speedway’s surface in August. Bristol treated its lower groove with a substance similar to what is used at the starting area in drag racing to help tires gain grip. NASCAR stated that resin was put on that track after the Camping World Truck Series race and then the Xfinity Series race. The result was two-wide racing. The 20 lead changes in Bristol’s Sprint Cup race ranked second among the track’s last eight races. Harvick applauded the changes and said more tracks should be treated as Bristol was. Martinsville Speedway applied the substance to its top groove in the corners during Wednesday’s tire test, the second of a two-day test. #78-Martin Truex Jr., one of four drivers who took part in the session designed for the 2017 season, doesn’t think Martinsville should do anything to its track next year. ‘It wasn’t as tacky as it was at Bristol,’ Truex said of Martinsville’s surface after it was treated. ‘I don’t know if there was less of it down. The thing I didn’t like about it was that you could pretty much run anywhere on the racetrack in the concrete in the corners and run like the exact same speed.’(NBC Sports)