firstly id like to apologize for my lack of knowledge into turbochargers but stick with it
alright so heres the situation ive recently purchased an evo 6.5 only problem is that its not making the right boost. when i first got it (2 weeks ago) it was making about 1.1 bar(15psi) at full boost but now its down to about 0.7 bar (10psi) and im fairly sure its meant to be around 1.3 bar (18psi)
now im thinking it might not be a boost leak because it will make the 10psi almost instantly (at the right rpm) but then it just wont make any more i have a feeling it could be the wastegate opening too early but like i said i know stuff all about turbochargers , so any help would be greatly appreciated