Track prep is the ongoing work a dirt track crew does on the racing surface — watering, ripping, packing, dragging and shaping — to build grip before the show and hold moisture in the clay through it.
Prep starts long before hot laps. World of Outlaws track prep veteran Gary Risch describes watering at night, tilling in the morning, packing a hard base, then letting it dry, crusting it, grading it and manicuring the shape — chasing a good bottom, a good top and a slick middle. Between races crews keep packing and dragging; DIRTcar notes scraping removes ruts, bumps and excess loose dirt, and that calcium chloride or a binding agent fights dust. Risch’s warning is the one racers should hear: let a track sit 25 minutes with nothing on it and it crusts over and slicks off. Prep sets the starting point — the cars take it from there.
Track prep decides how much grip exists and how fast it leaves, so reading the crew's work is how you know whether to set the car for a tacky heat or a slick feature.