NASCAR starting Speedweeks with restrictor plate that ended test

NASCAR will return to Daytona International Speedway in February with the same restrictor plate that it left with when testing ended earlier this month. Teams were informed Friday of the rules configuration for Daytona, which includes a restrictor plate with holes 29/32nds of an inch in diameter. In hopes of limiting the use of the two-car draft used by the Sprint Cup cars during the Daytona 500, NASCAR officials have made changes that they hope would result in overheating if the two-car draft is used for an extended period of time during the race. The biggest change is the rear bumper has been moved two inches closer to the ground. Teams will have a front grille opening of 50 square inches – it was 40 square inches by the time testing ended last week at the 2.5-mile trioval. The radiator pressure release valve will be set at 25 psi, the same as it was when teams left Daytona on the final afternoon of testing. Scene Daily