BlackTrax Performance @ Thunderhill Raceway Park

BlackTrax Test N Tune 11 Thunderhill Raceway 3-Mile Bypass configuration. 4 Run Groups Rotating at 15 Min. Each Throughout the Day GROUP 1 - Advanced/Open Group, SCCA or NASA racers GROUP 2 - Intermediate 11-20 track days GROUP 3 - Low Intermediate 4-10 track days GROUP 4 - Beginner 0-3 track days. Instructors available upon request REGISTER HERE https://blacktrax.blogspot.com/2018/10/blacktrax-test-n-tune-11-track-day.html