how much is the stock boost for evo 4

[armevo4]

Hello . I was wondering what is the stock boost pressure for evo 4 .
Mine is evo 4 all stock and mine is 0.6 bar . With a boost controller how much should it be ? Or how much can I add without damaging anything . Again everything is stock


Thank you

 

[fq-craigus]

0.8 bar standard and safely add 20% but map would be advised