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FYI WIRZ: NASCAR’s Testing Requires Daytona Thunder Explanation Attempt

For three days this past weekend, top NASCAR Sprint Cup teams tested the legendary 2.5-mile tri-oval with single-car runs, tandem runs and pack drafting sessions. Much was learned, but confusion persists among some fans as this test was the technical application of mechanical and regulation changes. The rules package tested included: Smaller radiators with maximum of two gallon capacity Smaller overflow tank with maximum capacity of half gallon Radiator inlet moved up closer into the front center bumper area Rate reduction in 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) New fin design A detailed explanation of these parameters would in...

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