I see from various sources that the trans pressure on a gauge in psi pretty much right off idle should be nearly max (for that gear)
The numbers given in psi,
for example
Idle 90psi neutral
Reverse 220psi
drive 1st gear off idle 180psi~
etc
So what is the deal with the shift pressure numbers? Why aren't they all maxes? Why do we put such low numbers in the low regions of the map if the trans always needs high pressure?