The Final Lap with Kerry Murphey

Preseason Thunder Test is Jan. 12-13-14 at Daytona International Speedway

Final preparations for 2012 Speedweeks, in particular, the running of the 54th annual Daytona 500 – Sunday, Feb. 26

Rules package is a result of information gathered during recent tests at Talladega (October) and Daytona (November)

Rules package includes:

Smaller radiator – Maximum of 2 gallon capacity
Smaller overflow tank – Maximum capacity of ½ gallon
Radiator inlet is moved up closer into the front center bumper area
Rate reduction in the springs – softer springs
Smaller rear spoiler
Base line restrictor plate of 29/32 inch (1/64 inch larger than plate size for the 2011 Daytona 500)

NASCAR Sprint Cup Teams Test At Daytona International Speedway
Teams Run Different Rear Spoiler Sizes To Help Determine Solid Baseline Aerodynamic Package For 2012 Preseason Thunder Test At DIS

DAYTONA BEACH, Fla. (Nov. 15, 2011) — Seven NASCAR Sprint Cup Series teams turned laps at the high banks of Daytona International Speedway Tuesday, seeking the best baseline aerodynamic package for next January’s Preseason Thunder Test at “The World Center of Racing.”

Teams participating in Tuesday’s test included Hendrick Motorsports (Dale Earnhardt Jr. and Aric Almirola); Roush Fenway Racing (David Ragan and Marcos Ambrose); Joe Gibbs Racing (Joey Logano); Michael Waltrip Racing (Martin Truex Jr.); and NEMCO Motorsports (Joe Nemechek).

After the track was dried following an early morning rain shower, teams first got on the track at 11:45 a.m. The initial restrictor plate size was 29/32 inch and the initial spoiler size was 4 ½ inches tall, 63 inches wide, which was the same spoiler size for last July’s NASCAR Sprint Cup Series race at Daytona. By day’s end, the size of the rear spoiler had been reduced to 3 inches tall by 62 inches wide. The smaller spoiler results in less down force and drag, but still allows the cars to maintain high speeds and remain under control.

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