actually if you search 'corsa tire pressure' there are 3 unrelated hits and 'corsa 3 pressure' there are 0..... I have the same question btw....if there isn't a clear answer here I'm just waiting to see what the Pirelli tent posts on race day.
Dunno, the old ones ran higher than that. 34-36 was a good pressure, street or track, unlike most DOTs around 30