 | |  | Shop Talk: Pat Tryson Pat Tryson has gone into Richmond on the Chase bubble before. So Mark Martin's crew chief knows how to handle pressure. More |  |
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 | |  | Crew Chief Corner: Chad Knaus Jimmie Johnson's crew chief to get a victory at very fast Atlanta Motor Speedway, you need a strong, durable engine. More |  |
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 | |  | Computer simulations help cut lap times Computer simulations which test different gears and shift points can help Nextel Cup drivers maximize their cars on road courses. More |  |
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