[s-cars] Fluttering Sound from Turbo?

[Serge Filanovsky]

Sounds like a good excuse to upgrade to the Hyperboost valve.


Serge Filanovsky

95.5 S6 Avant





> 
> 
> Would love to get some advice regarding a sound I am
> hearing (I think anyway) from the turbo on my 94 S4.
> 
> When ever I run the rpms up to say, 4 or 5 thousand
> under at least moderate throttle, when I back off to
> shift to next gear, the turbo seems to be making a
> fluttering sound as it comes down in rpms in between
> the shift.  It does not seem to have lost any power,
> however, the sound makes me wonder if I have a
> precursor to later problems.............
> 
> Thanks!
> 
> 
> 
> 
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