[V8] Driving with Air Filter Cover Off?-now K&N, etc

Thu Sep 1 19:20:08 EDT 2005

No - it couldn't do that.
It is just for straightening the air flow.

Dave

Quoting quattro + 5 or 8 = fun <thequattroking at yahoo.com>:

> Could that honeycomb filter be a back fire suppressor?
>
>
>
>
>
> Shayne
>
>
> Bay Area, CA
> Eastern WA State
>
>
> PARTING:  1972 Mercedes Benz 280 SE 4.5
> PARTING:  1986 Audi 4000 CS quattro
>
>
> > From: "CB&D, LLC" <cbdllc at ntelos.net>
> > Date: Wed, 31 Aug 2005 19:20:42 -0400
> > To: "@V8 list" <v8 at audifans.com>
> > Subject: Re: [V8] Driving with Air Filter Cover Off?-now K&N, etc
> >
> > See the new Popular Mechanics magazine on the shelf now for a rundown on
> > testing of "magical gas saving devices".  They tested 6 or 8 different
> > devices claimed to increase mileage and HP including 2 different air swirl
> > devices.  They spent (way to much) time on the dyno testing HP and fuel
> > economy.  *NONE* of the devices helped at all, 2 even decreased HP and
> > increased fuel consumption, the rest did nothing, oh, one that wired in to
> > the plugs did catch fire.
> >
> > Turbulent flow in gases and liquids delivers less volume than laminar flow
> > due to increased friction loss.
> >
> > Jeff
> > -----Original Message-----
> > From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com]On Behalf
> > Of dsaad at icehouse.net
> > Sent: Wednesday, August 31, 2005 8:50 AM
> > To: v8 at audifans.com
> > Subject: Re: [V8] Driving with Air Filter Cover Off?-now K&N, etc
> >
> >
> >
> > Why would you want a tornado?
> >
> > There is a honeycomb screen at the intake. Its express purpose is to
> > "straighten" the air flow. "Laminar air flow" is what it is called. I am
> > sure I
> > spelled that wrong, but anyway, the MAF relies on a small sample of air to
> > accurately guage the total flow through the much larger chamber. Swiriling
> > the
> > air hurts - not helps this.
> >
> > Perhaps the tornado would have some effect on a carburetted(sp?) motor,
> but
> > I
> > would think the swirling there would throw the fuel against the intake
> > runners
> > and slow down the air velocity - the very thing that helps charge the
> > cylinder.
> >
> > As I understand motors, a swirl in the combustion chamber could be good,
> but
> > anywhere upstream from that is bad.
> >
> > Dave
> >
> >
> > Quoting Tony and Lillie <tonyandlillie1 at earthlink.net>:
> >
> >> Well, with 308k and counting fast, I'll say the K&N can't be that bad. My
> >> car came with it, and I probably wouldn't buy one myself. But, no sense
> in
> >> throwing it out. It's been on mine at least the last 100k. Plenty of
> > redline
> >> runs, and still strong as ever!
> >>
> >> I've seen plenty of the flow and particle tests, BTW. That's why I
> > wouldn't
> >> buy it myself, don't think it's worth the money fo rwhat you get. Then
> >> again, I'm fabricating my own "Tornado" for the same reason. Held one
> >> finally - $70 for this!
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: "S_Matus" <scott_matus at yahoo.com>
> >> To: <jward.v8 at gmail.com>; "V8" <v8 at audifans.com>
> >> Sent: Tuesday, August 30, 2005 10:36 AM
> >> Subject: [V8] Driving with Air Filter Cover Off?
> >>
> >>
> >>> The guys I run with that are fanatics about clean oil, call these gauze
> >>> filters - Knock & Noise (K&N).  The line is that you will be hearing
> > these
> >>> sounds after running a K&N filter.
> >>>
> >>> Scott.
> >>>
> >>> ------------------------------
> >>>
> >>> Message: 5
> >>> Date: Tue, 30 Aug 2005 08:21:35 -0700
> >>> From: Jeremy Ward <jward.v8 at gmail.com>
> >>> Subject: Re: [V8] Driving with Air Filter Cover Off?
> >>> To: "Klein, Nathan P" <nathan.p.klein at lmco.com>
> >>> Cc: v8 at audifans.com
> >>> Message-ID: <4ca624fb05083008217d00b4ce at mail.gmail.com>
> >>> Content-Type: text/plain; charset=ISO-8859-1
> >>>
> >>> I agree with Ingo on this one.  My car came with a K&N and it cause so
> >>> much filth to enter the intake, that the butterfly valves on the TB
> >>> wouldn't close all the way.  This caused the throttle switch to not
> >>> work and threw the tranny in to limp-home-mode.  Not worth it in my
> >>> opinion for the 5(?)hp gain.  Some swear by the K&N so if you do use
> >>> it, make sure you follow the cleaning / oiling instructions to a T.
> >>>
> >>> Side note - the air intake horns are double walled from the factory to
> >>> reduce intake noise (remember this car was marketed as a luxury
> >>> performance car with the emphasis on the luxury).  Not sure if anyone
> >>> has replaced the factory setup to eliminate the double wall, but
> >>> remember this car LOVES cold air, as you will notice performance is in
> >>> the toilet on a hot day...  If you do go the cold air intake route,
> >>> make sure it's not a hot air intake instead ;-)
> >>>
> >>> Cheers,
> >>>
> >>> - Jeremy
> >>>
> >>>
> >>>
> >>>
> >>> ---------------------------------
> >>> Start your day with Yahoo! - make it your home page
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> >
> >
> >
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