shot. Might have to venture outside of the Z32 community to get pressure data from a different engine and make some adjustments and/or assumptions.
I saww these guys post on Facebook a while ago that they've aquired a high speed cylinder pressure data acquisition system that they've been using to tune their turbocharged mustangs. Might want to contact them and pick their brain. You might at least be able to get some ballpark numbers to start with.