[s-cars] RE: AAN Drysump

[Theodore Chen]

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

--- QSHIPQ at aol.com wrote:

> You guys crazy!  IF you think you have a oil problem that requires a dry
> sump, you should be spinning crank and rod parts, #3 is usually first cuz it
> has the highest load.  Audisport homoged the dry sump in the Jan 1 '83 group
> B cars, but it is worthy of note that it wasn't used prior to that in Group 4
> (tqc intro).  And yes, the Trans Am car used it, so did the IMSA GTO 90.
> 
> The reason for dry sump is to keep the oil pressure consistent in all dymamic
> conditions (read:  high 'g' loading found in severe racing).  I don't at all
> believe ANY S car needs one.  At the *very* most in a street driven
> application, an Accusump resevoir system might have merit, but I have read of
> no crank failures (due to oil pressure problems) on these lists...  Ever. 
> Crank failures are the reason to explore Accusump resevoirs and dry sump
> systems.  For low g loading (read: occasional track)the accusump will
> suffice.  I'd argue further, that accusump pressure resevoirs are used on
> many wet sump cars in racing.
> 
> This sure went for a big ride from a PCV thread.  Audi's turbo oiling systems
> are really good.  Ring failures (oil blowby) aren't reasons to use
> Resevoir/dry sump.  Rod bearing failures and crank journal failures maybe. 
> Make sure that you understand the reasons, tests and justifications for these
> devices before throwing money at them just because.
> 
> Hope this eases the frenzy.
> 
> Scott Justusson
> QSHIPQ Performance Tuning
> Chicago
> In a message dated 2/28/2005 10:43:51 AM Eastern Standard Time, "mlp"
> <mlped at qwest.net> writes:
> 
> >Todd, in case you're not on, or have access to the Audi20V_Kruemmer group,
> >this from Tommy:
> >  (Todd's http://tinyurl.com/59v42 raison for asking)
> >
> >Do you know if the "....The intermediate shaft is a modified VW original
> >shaft that has the fuel pump lobe machined off & a worm gear installed to
> >turn the mating worm gear on the oil pump shaft..." can be adapted to the
> >AAN?  I've no idea how the Finn's (? or are they Swedish) Auto-Verdi group
> >adapts their system.  However, I not confidently expect to see one of these
> >in Brian Billotti's next vehicle.  I suspect Hap would also be interested,
> >IF someone can tell him the pump & pan can be polished to a high degree of
> >luster.
> >
> >mike
> 
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> 



		
__________________________________ 
Do you Yahoo!? 
Yahoo! Mail - now with 250MB free storage. Learn more.
http://info.mail.yahoo.com/mail_250