Pacembellum

How come on my PDR from my 2017 corvette boost max in the pdr screen via Cosworth (not the pi toolbox) that shows all the vehicle data per lap such as min/max coolant, min/max oil, reads 31 psi but when I load a file from my spring mountain z06 also a 2017 it shows the actual boost of around 9.5-9.86 psi on that same screen?