Rule Changes, Effective at Atlanta

NASCAR announces rule changes DAYTONA BEACH, Fla. (Nov. 2, 1998) NASCAR officials announced Monday that modifications to the rear spoilers and front air dams for all makes of cars will go into effect for this weekend's NAPA 500 NASCAR Winston...

NASCAR announces rule changes

DAYTONA BEACH, Fla. (Nov. 2, 1998) NASCAR officials announced Monday that modifications to the rear spoilers and front air dams for all makes of cars will go into effect for this weekend's NAPA 500 NASCAR Winston Cup Series event at Atlanta Motor Speedway. The Chevrolet Monte Carlo will be required to maintain a rear spoiler size of 6.50 inches in height (up from five inches) and 57 inches in width. Rear spoilers on the Pontiac Grand Prix must be 6.875 inches in height (up from 5.375 inches) and 57 inches wide. The Ford Taurus will maintain a rear spoiler of 6.25 inches in height (up from 4.75 inches) and 55 inches in width. The Ford Thunderbird's rear spoiler must be 6.00 inches in height (up from 4.50 inches) and 55 inches wide. All models will be required to maintain a minimum rear spoiler angle of 65 degrees. Front air dams on all cars will now be required to have a 3.50-inch ground clearance. This represents a reduction of 1.50 inches on Fords and Chevrolets, and a 1.125-inch reduction for the Pontiacs.

Source: NASCAR Online

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Series NASCAR Cup