Teams in both the NASCAR Sprint Cup and Nationwide Series will run the same tire codes at Charlotte this weekend . . . this is the same combination of left- and right-side tires that Sprint Cup teams ran in the Sprint Showdown and All-Star races at Charlotte last weekend . . . both Cup and Nationwide teams also ran this right-side tire code at Darlington earlier this month . . . this tire set-up came out of a Goodyear tire test at Charlotte last fall . . . drivers participating in that test were Kurt Busch, Juan Pablo Montoya and Martin Truex . . . compared to what was run at Charlotte last season, this tire set-up features softer compounds on both the left and right side, which will give the cars more grip . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Charlotte . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire. The estimated pit window for the Sprint Cup cars is every 48-52 laps, based on fuel mileage. See tire codes, pressures, number of tires and more on the Charlotte Race Info page – Goodyear section.(5-26-2011)
