Race weekend: Friday, Aug. 31 – Sunday, Sept. 2 Track: Portland International Raceway, a 12-turn, a 1.964-mile road course in Portland, Oregon Entry List: Grand Prix of Portland (PDF) Race distance: 105 laps / 206.22 miles Push-to-pass parameters: 200 seconds of total time with a maximum time of 20 seconds per activation. Firestone tire allotment: Seven sets primary, four sets alternate. Teams…