Teams in both the NASCAR Sprint Cup and Nationwide Series will run the same tire codes this weekend . . . this is the first time these teams have run this combination of left- and right-side tires at Darlington, though they have run this right-side tire code several times in the past . . . Sprint Cup and Nationwide teams have run this right-side with a different left-side at Las Vegas and Charlotte in 2009, and will do so again in 2010 . . . this tire set-up was confirmed for Darlington at a Goodyear test at the track on March 9 . . . teams participating in that test were the No. 19 Richard Petty Motorsports Ford with Elliott Sadler, No. 33 Richard Childress Racing Chevrolet with Clint Bowyer and No. 47 JTG-Daugherty Racing Toyota with Marcos Ambrose . . . compared to what was run at Darlington last year, this tire set-up features a left-side mold shape and compound change and right-side construction change, all designed to 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 Darlington . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire. The estimated pit window is every 55-60 laps, based on fuel mileage.(Goodyear PR), see tire pressures, codes and more on my Darlington Race Info Page – Goodyear section.(5-6-2010)
