GOODYEAR TIRE NOTES NASCAR Nextel Cup Series -- Race No. 23 -- GFS Marketplace 400 NASCAR Busch Series -- Race No. 25 -- Michigan 250 Michigan International Speedway (2-mile oval) -- Brooklyn, Mich. Fast Facts for August 19-21, 2005 Tire: ...
GOODYEAR TIRE NOTES
NASCAR Nextel Cup Series -- Race No. 23 -- GFS Marketplace 400
NASCAR Busch Series -- Race No. 25 -- Michigan 250
Michigan International Speedway (2-mile oval) -- Brooklyn, Mich.
Fast Facts for August 19-21, 2005
Tire: Goodyear Eagle Speedway Radials
Number of Tires:
Nextel Cup: Left-side -- 1,400, Right-side -- 1,400
Busch Series: Left-side -- 550, Right-side -- 550
Tire Codes: Left-side -- D-6852; Right-side -- D-6878
Tire Circumference: Left-side -- 87.4 in.; Right-side -- 88.7 in.
Technical Inspection Inflation: Left Front -- 30 psi; Left Rear -- 30 psi; Right Front -- 48 psi; Right Rear -- 45 psi
Minimum Recommended Inflation: Left Front -- 24 psi; Left Rear -- 24 psi; Right Front -- 44 psi; Right Rear -- 41 psi
Estimated Pit Window: Every 48-52 laps, based on fuel mileage.
Notes: This is the first time Goodyear has brought this specific combination of left- and right-side tires to Michigan . . . Goodyear ran this left-side code during NASCAR's visit to Michigan back in June, but with a different right-side code . . . both the Nextel Cup and Busch Series will run the same tire codes this weekend . . . this is the only track at which NASCAR teams will run this specific tire combination in 2005, though this left-side code (D-6852) will be run at California, Charlotte, Chicago, and Kansas . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in their tires at Michigan . . . the inflation in those inner liners should be 12-25 psi greater than that of the outer tire.
Goodyear Quote -- Mark Keto, Lead Engineer, Stock Car Racing: Michigan: "The first race at Michigan went well, but the right-side wear was slightly marginal on a green race track. We adjusted that compound to improve the wear, while maintaining the same level of grip. Based on recent team testing at Michigan, the change was transparent from the driver's standpoint, and the wear was improved."