REVAMPED question: which 20vt is best?
TM
t44tq at mindspring.com
Mon May 13 21:54:18 EDT 2002
Rolf- for US models:
3B: only available in the '91 200 quattro
AAN: only available in '92-94 S4, '95 S6
The manifold differences will cause the biggest problems in terms of
packaging. The 90, with its side-mounted radiator, will have clearance
problems if you try to use the AAN intake manifold and plumbing, as the
S4/S6 uses a front-mounted radiator and the intercooler setup is all
wrong
for the 90.
Thus, it is best to use a 3B intake manifold (in terms of what is
readily
available here) or to get the RS2 intake manifold (probably even easier
to
get as no one really imports 3B manifolds other than the dealer). This
will
simplify your plumbing.
RS2 is basically a 90 Avant with a Porsche-tuned I-5 20v turbo, larger
turbo
than the aforementioned cars, different tuning, different cams, much
larger
intercooler, built by Porsche and equipped with Porsche brakes and
wheels all
around, on special hubs.
Stock WRXes aren't that fast, but you'll be hard pressed to smoke a
tuned WRX.
OBD-II only existed on the '96 and '97 Canadian-spec S6, very rare cars
indeed-
only 74 '97s were imported.
Taka
-----Original Message-----
From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com] On
Behalf Of R. Mair
Sent: Monday, May 13, 2002 8:04 PM
To: Quattro List
Subject: REVAMPED question: which 20vt is best?
Pardon my lack of knowing which codes (3b/AAN) go to which year engines,
but I'm assuming that the latest 20vt's are most desierable, correct?
The talk of manifolds kept coming up on the replies. RS2 is obviously
something I'll need to hunt down, but does anyone have any idea where I
might start looking? Although I've heard of RS2's, what are they
exactly? What is the easiest manifold combo that will work without
having to find exotic parts and major machining?
Oh yeah... when I said funds are not an issue, I meant that I've
earmarked enough $$$ for a low mileage, late 20vt, and a seperate fund
to cover all the unexpected sillyness that is bound to pop up as the
project continues. I don't want to spend huge $$$ for things that would
be 'nice' or add a few extra hp (other than a chip and spring perhaps)
at this time. I think my goal for this 90tq project is somewhere around
300hp, maybe a little more. Overall, I need reliability more than
anything else, so going all out is not an option. I don't plan to race
it, I just want to smoke the occasional 'Scoobie-Doo' WRX on the
turnpike.
Lastly, I wasn't aware of any 20vt carrying the OBD2 platform. Can
someone enlighten me to what models came with that? I had thought the
20vt was phased out before 1996, in which all cars were required to have
OBD2.
All your help is very much appreciated!
Rolf
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