T3/t4

can someone help me out on this one. I was wondering how much psi you can run on a T3 turbo or a T4 if there is any differenece.

well is a T3/T4 turbo good or what are they. thats basically the question I guess

THIS (http://www.automotiveforums.com/vbulletin/showthread.php?t=156363) is the link I was going to suggest, linked to in the second link in the above post. T3/T4 just describes the turbos "frame" size, and says little or nothing about the turbo itself. As for what boost you can run, thats a trick question. ;) But hopefully that link gets you started.