My car appeared to be over boosting so with the limited knowledge i have i decided to change the setting on my actuator.

I have now got my head in a pickle cause the car now seems to have to little boost !!!

Ive got so wound up by it i now cant remember which way i should be turning the nut?

What i want to know is does more thread give u more or less boost that it holds and to clarify that what way should i be turning the nut (Clockwise/Anticlowise?)
How much should i been turning it ? Is it just a case of keep turning until i get what i think is correct ? Is to much dangerous for the car ?

Also what is the connection between .bar and psi ?

The car seems to be going up to 1 bar ? How much psi does this equal if they are connected ?

Help appreciated peeps