DAYTONA BEACH, Florida — Engine troubles during the day, wrecked cars at night. Stewart-Haas Racing found all sorts of trouble at Daytona International Speedway Saturday. Tony Stewart, SHR's owner and driver, and teammate Danica Patrick got the miserable day started with blown engines in pole practice for the Daytona 500. They will have to start at the back of the field in Thursday's qualifying race and in the Feb. 23 Daytona 500. Things got worse in the Sprint Unlimited exhibition race a few hours later. Stewart, Patrick, Kevin Harvick and Kurt Busch were involved in a nine-car wreck in the race, knocking out three of the four SHR cars in the event that kicks off the NASCAR season. — AP