Bernie Benz b.benz at charter.net
Sat Jul 31 10:46:27 EDT 2004

If and when the turbo was seized you couldn't have any boost.  If your
Hoppen stage 2 chip has a higher pressure range transducer than stock the
stock boost (manifold pressure ratio) gage would be off (low) by the ratio
of transducer pressure ranges.

Was this RS stuff a 2B installation?


> From: "Watts" <kyle at sopris.net>
> Date: Sat, 31 Jul 2004 07:58:50 -0600
> To: <200q20v at audifans.com>
> Subject: 91 200 TQW NO MORE SMOKE
> Hello all,
> The diagnosis for my smoking after warm up was a seized RS turbo (40K
> miles on it). 2Bennett loaned/rented me a K24 while the RS is being
> re-built. Got that yesterday and took out the RS (I could barely turn
> the shaft) and installed the K24. When I had the seized RS turbo (before
> I knew the turbo was seized), the boost gauge would read 1.4 bar maximum
> (I have a Hoppen stage 2 chip and RS EM). The K24 now reads about the
> same. I am more than a little confused. The car seems to be about as
> fast as my 93 S4 I once had. I thought I would feel head jerking low end
> acceleration, don't get me wrong the car moves pretty good, but not what
> I would expect. I checked all of the hoses, they are intact and secure.
> What's the deal with the boost gauge? I think it monitors manifold
> pressure, and is not a true indication of the actual boost pressure? Is
> the gauge accurate with the chip installed? If it the boost gauge is
> reading 1.4 bar, what would the actual boost pressure be? At least it
> isn't smoking, and I no longer getting nasty looks and gestures from
> fellow drivers. Any help/clarification would be appreciated.
> Greg

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