Guys,
Sorry to hijack this thread but, after having a closer look at my stock boost gauge tonight it doesn't actually reach the +7 line so I think I'm ok on my current setup.
The gauge legend is x100 mm/Hg so the +7 = 700mm/Hg which equates to approx. 13.5psi.
Any one know how accurate the stock gauge is? Can I be sure that if I don't hit the +7 line that I'm definitely under 13.5psi?
Also, how much boost can a high-flowed stock turbo handle considering that it will still have the ceramic housing but a more robust steel exhaust wheel?