If you read the agendas, they say that the pits and machine shops open at 8:30 Am thursday and 8:00 AM the other two days. So only three people from each team are allowed in the pits from 7:45-8:30 on thursday.
Agenda
I think they open the doors at 8:00 so does this mean that the rest of your team has to wait outside, or can they wait in the bleachers from 8:00 to 8:30?