With the huge success of Hoosier sprint tires on dirt tracks throughout the world it's not surprising we receive many inquiries on how/when to groove tires. The following text is intended as merely a guideline based on the experiences of our staff over the years.
In the Global Time Attack Challenge, the Canadian team, PZ Tuning, made history this past weekend by posting a record lap time of 1:23.358 in their Unlimited Front Wheel Drive, Vibrant Performance Honda Civic on Hoosier A7 tires at Road Atlanta.
Left Side Tire Update for U.S. Short Track Nationals at Bristol Motor Speedway
May 2, 2017
After close evaluation and extensive testing, Hoosier Racing Tire will change the required left side tire to an F-55 for the U.S. Short Track Nationals. The F56* on the right side will remain the same. The F-55 will be replacing the F-45.