If you use I-5 through north Portland for your morning commute, expect delays Thursday and Friday. This is the week for the Auto Swap meets at Portland International Raceway and the Expo Center. Mark Wiggington, at P.I.R. says if you need a specialty part for a car, you can probably find it at one of the hundreds of booths. The P.I.R. Swap Meet runs Thursday through Saturday and the Expo Center Portland Swap Meet runs Friday through Sunday.