[s-cars] RE: AAN Drysump

[QSHIPQ at aol.com]

Well considering what Mark did with his S2, I'm not sure even the dry sump operates upside down or crumpled.  I will say that the Group A S2 didn't carry a dry sump, OR an accusump.  I'll freely admit my admiration of the of accusump resevoir in concept and design, I'm a bit awed (and chuckling) at a dry sump for a street/occasional track car, even a full blown race audi for that matter.  Audi oil pumps are not known to be a failure problem at all, even with cavitation.  In fact, they usually last longer than the rest of the motor.

I jump, abuse, and otherwise drive all my quattros hard, really hard.  If you look closely at the steamboat pics in fact, there plays my old 5ktq avant with some 250+k on the original oil pump, and it has sported some serious turbos and seriously 'intermittent' oil change intervals over the years that I owned it.  The black urq I jumped there has 203k on the clock, and the previous owner had changed the oil...

Even with the 5ktq race car I service, I just don't see spun bearing problems often enough in my shop to justify either accu/dry sump arrangements.  

Scott Justusson
In a message dated 2/28/2005 6:09:55 PM Eastern Standard Time, "Trevor Frank" <tfrank at symyx.com> writes:

>
>Talked to the guy's at Sierra Motorsports a few years ago...he was very concerned about me getting a spare and replacing the wet sump pump or going with a dry sump.  Honestly I think that this was because his experience was all with rally cars, he said that they did have starvation issues and would blow the pumps a lot as well as spinning bearings.  I believe that since we don't tend to jump our cars all that much or get them on two wheels...hmmm actually Scott the dry sump might be for you. :)
>
>-----Original Message-----
>From: s-car-list-bounces at audifans.com [mailto:s-car-list-bounces at audifans.com] On Behalf Of QSHIPQ at aol.com
>Sent: Monday, February 28, 2005 12:20 PM
>To: Theodore Chen; mlped at qwest.net; 'TODD KRAMER'; s-car-list at audifans.com
>Subject: RE: [s-cars] RE: AAN Drysump
>
>That would be the absolute worst place to look for more ponies, in fact I can't think of a worse place to throw dollars.  Knife edge the crank, get accusump wet sump resevoir, buy a dedicated track car.  All money better spent.
>
>
>There is a crank scraper found on all S cars already, and a pretty decent wet sump arrangement.  I haven't seen the symptom (spun rod and crank bearings) posted to even discuss the accusump resevoir, less the dry sump arrangement.
>
>my .02
>
>SJ
>In a message dated 2/28/2005 1:16:03 PM Eastern Standard Time, Theodore Chen <tedebearp at yahoo.com> writes:
>
>>well, maybe they're looking for a few more hp by keeping the oil away
>>from a spinning crank, but the money is better spent elsewhere (on a
>>dollar per horsepower basis).  do these engines have windage trays and
>>crank scrapers?
>>
>>-teddy
>
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