Everything you need to know about Electronic Fuel Injection



NASCAR Sprint Cup Teams Test Spoilers, EFI, At Daytona International Speedway

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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Electronic Fuel Injection testing at Charlotte Motor Speedway

NASCAR, Teams Pleased With Continued Progress Being Shown With EFI Systems

DAYTONA BEACH, Fla. (OCT. 17, 2011) — Teams representing 11 NASCAR Sprint Cup Series cars turned upwards of 400 miles Monday during a test of Electronic Fuel Injection (EFI) at Charlotte Motor Speedway. Both NASCAR officials and drivers were optimistic about the continued development of the system. Plans call for the full implementation of EFI in the NASCAR Sprint Cup Series beginning with the 2012 season.

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