With the intake silencer removed and catless up/dp on my 05, you can hear the turbo spool and the BOV release pressure.
When I roll into the throttle on my wagon, I can hear the turbo spool. Just like big trucks on the highway when they begin to climb a hill.
Is that what your asking for ?
If your turbo whistles that the sign that it has to much shaft play. Trust me on that one. I posted a video in here last year, 142,000 miles on oem turbo.
195k, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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Last edited by Max Capacity; 07-01-2012 at 12:37 PM..