NASCAR looks to limit two-car draft

NASCAR has introduced technical changes to the cooling system on Sprint Cup series cars in the hope of limiting the two-car tandems that prevailed during Saturday's Budweiser Shootout at Daytona. Effective for Thursday's Gatorade Duels, which will complete the starting order for the Daytona 500, the dimensions of the front-grille opening on the cars will be reduced to a maximum of 50 square inches and also a pressure-relief valve set at 33 PSI will be fitted to radiators. The move will drastically reduce engine cooling, hoping drivers will have to look for 'clean air' much more than they did during Saturday's event, thus reducing the number of laps a car can push another one before water temperatures peak on their gauges

Source: http://www.iracing.com/inracingnews/nascar-news/nascar/nascar-looks-to-limit-two-car-draft/

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