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Subaru factory boost pressure
Posted: Mon Mar 10, 2008 8:03 pm
by simcoz
Does anyone know what boost the twin turbo liberty runs factory.
just looking at using them in a conversion.
Cheers
Coza
Posted: Mon Mar 10, 2008 10:35 pm
by HotFourOk
Taken from an autospeed article on the B4 Liberty:
we saw a 0.95 Bar peak boost figure in the mid-range, dropping to 0.75 Bar in the top-end. But once heat soak set in after a couple of runs, peak boost slipped to 0.8 Bar and top-end boost remained around 0.70-0.75 Bar.
So that's about 14psi peak, with around 12psi once up to full temperature (getting flogged
).
Watch out for the 'Valley Of Death' though, at 4000-4500 rpm... they usually see a boost drop of 4-5psi.