Carb Day @ Indianapolis Motor Speedway
Carburetion Day is a time to celebrate traditions, with classic rock and lots and lots of beer. This year, certified tragedy-overcomers Lynyrd Skynyrd are the headliners of choice, performing at 3:30 p.m. We'll place bets right now that they'll play all of their hits - from "Free Bird" to "Sweet Home Alabama" to "Saturday Night Special." There's plenty to see before that - including the final practice before the big race, when pit crews tune the imaginary carburetors that haven't been used in a qualifying car since the early '60s. But we do love the name. 8 a.m.-6 p.m.; $20, 12 and under free
Hoosier Hundred @ Indiana State Fairgrounds
Rodger Ward, A.J. Foyt, Parnelli Jones, Mario Andretti and Al Unser are among the winners of the Hoosier Hundred, which runs this Friday for the 59th time on the Indiana State Fairgrounds' one-mile dirt oval track. It is as it sounds: a 100-mile, 100-lap race, featuring both up-and-comers as well as stalwarts of the dirt track scene, notably long-time NASCAR driver Kenny Schrader. 3 p.m. grandstands open, 7 p.m. race; $25 advance (217-764-3200), $10 children 11 and under
The Carb Day After-Party at 8 Seconds Saloon (7 p.m., 21+, 111 N. Lynhurst Dr.) features the 2010 Battle of the Bands winner Breakdown Kings, Underrcover All-Stars, All Love Her Twister and Standout Story. And we're not sure who the Hometown Hotties are, but they'll be out in force at the Maxim Indy 500 Party at Sensu (10 p.m., $15 advance, $20 door, 225 N. Meridian St.), joined by DJ Lockstar.