[BiturboS4] s4 engine noise

[James M. De Arras]

What type and weight of oil were you using?

Thanks,

Jim De Arras

> -----Original Message-----
> From: Michael Kuriger [mailto:michael at isuzu-mods.com]
> Sent: Thursday, October 16, 2003 12:04 PM
> To: Robin Gibson
> Cc: BiturboS4 at audifans.com
> Subject: Re: [BiturboS4] s4 engine noise
>
> On my 2001 S4, the turbos started whining almost immediately after
> installing the X chip at 8000 miles.  the turbos failed last week at
> 20,000 miles and there was no warning.  I just hit the gas and all of
a
> sudden i was shooting tons of smoke out the back end.  :-(
>
> Mike
>
> Robin Gibson wrote:
>
> >This is a multi-part message in MIME format.
> >--
> >[ Picked text/plain from multipart/alternative ]
> >Hi
> >
> >I run a 1999 S4 manual with ABT chip (310bhp) which was fitted 2
years
> ago.  Over the last 6 months I have noticed more induction-type noise
from
> the turbos; rather than the usual crisp high pitched whistle from
1500rpm,
> it sounds like a muted moaning sound between 1500-2000rpm, almost like
one
> of the turbos is slow to speed up and slow down.  It is most
noticeable on
> light throttle or when decelerating.  No noises or problems when
driven
> hard.  Feels like some loss of response below 3000rpm, but difficult
to
> tell if much loss at higher revs.  Sound familiar to anyone?
> >
> >Robin
> >
> >e-mail: robingibson at cowanlinn.co.uk
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