[s-cars] turbo upgrade (not rs2)

[Lewis, Gary M]

I would argue that the Hybrids are not the easiest way to go.  You need oil and water lines, and an intake hose.  The Innovative Turbo solution is bolt-on that is bigger than RS2, probably similar to a T04E/K26#6, but it makes great boost down low, 26 psi at 3,400 rpm.  Coldside compressor is ~1.9"/~3.0". 

Don't get me wrong, I'm not knocking the Hybrids.  I think they are great when all you have is a choice between that and an RS2.  

Without going to a T3 exhaust pattern, the Innovative solution makes the most sense to me.  At a 50 trim Garrett, the limiting factor becomes the K26#6 hotside, not the compressor.  

My .02.

Gary Lewis

1995.5 S6 Avant, Green/Ecru, RS2 MAF, RS2 Exhaust Manifold, RS2 Injectors, Custom Turbo (K26 Turbine, Factory K26 Cold side (Audi Works '999' P/N) with 50mm intake and custom Innovative Turbo compressor wheel), TurboXS Type 25 Bypass Valve, Bilsteins, Eibachs, Big Reds, Spec II Clutch.



-----Original Message-----
From: Djdawson2 at aol.com [mailto:Djdawson2 at aol.com] 
Sent: Thursday, May 20, 2004 7:32 PM
To: sola4est at yahoo.com; s-car-list at audifans.com
Subject: Re: [s-cars] turbo upgrade (not rs2)


In a message dated 5/20/04 1:12:45 PM Mountain Daylight Time, 
sola4est at yahoo.com writes:
what can I do as far as turbos go, to get better performance, without going 
rs2 spec?


Easiest way to go is KKK/Garrett hybrids.  They will bolt on to Audi EMs, but 
require oil/coolant line fabrication.

  currently running mtm 1+.  can I get above 300hp with turbo/manifold 
upgrades?


This past weekend, I installed a 50 trim Garrett/KKK K26 #6 hot side with a 
stage 3 turbine wheel onto my friends '94, along with an RS2 EM.  The extra 
work (compared to RS2) involves the oil/coolant line fabrication.  Plan on 6-8 
hours of work, depending on your experience.  His car has a TAP chip in it, that 
allows 18-19 psi peak, and fades the boost to about 15psi above 5k rpm.  His 
car used to show about 215 on the G-Tech, and after changing the turbo and EM 
and nothing else, it now repeatedly shows 285-296.  For comparison's sake, my 
fully RS2'd S4 shows a peak of 301-302 on the G-Tech, running 25psi, and on a 
4 wheel dyno it showed 325hp atw.  There is, however, a down side.  At this 
point, his boost threshold is above 4k rpm.  This is not acceptable for a daily 
driver, so we are working to bring this figure down.  The peak hp, however, is 
phenomenal, considering just a turbo and EM swap.

We will be installing the RS2 MAF, injectors, and 3 bar software for our next 
tests, and we'll see if this helps.

Also, do not be fooled by the Turbonetics version of the KKK K26 hot side, as 
it is a replica of the #8.  This hot side will be even worse, in terms of 
boost threshold, than the #6.  I was duped into buying one of the "RS2 killer" 
turbos by a lister in the Marketplace, and when I received it, it had the #8 hot 
side.  The pictures in the add, however, were of a hybrid using the #6... 
pictures snagged from Javad's 034EFI site, and pasted into this guy's add.  Just 
a warning, as I think this turbo would be absolutely miserable on any "normal" 
2.2.  Mike Pederson (mlped) will be testing it soon on his highly modified 
S4, and it will be interesting to see how it performs on an engine with 
considerably better than stock breathing capabilities.
HTH,
Dave in CO
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