[urq] 20V AAN vs 3B and vacuum lines
Jack Walker
jack at walkerperformancegroup.com
Sun Sep 11 21:29:13 PDT 2011
Scott,
Not meaning to be a smart ass, but.You sure??
A 3B valve cover is different configuration or shape I thought, that
certainly looks a lot like a AAN or RS2 valve cover at least?
Now I suppose someone could put a AAN valve cover onto a 3B motor???
The RR UrQ cars had 3B's in them, the RS2's were AAN's into coupes and
Avants, the motors are pretty similar.
Certainly can see it's got a RS2 IM, with the Porsche logo cast into it,
it's sort of hard to miss:-)
The RS2 intake system and the 3B both run from the IM into the throttle
body, into a hose at the rear of the head, the into the Pressure Pipe which
bends around the back of the valve cover and around to the passenger side
along side the valve cover and drop down in front of the oil filter housing
with a hose.
Although the parts are NOT interchangeable, ask me how I know? I've had the
3B and RS2 parts side by side!
I've had a 91 20VA with a 3B motor and later a 95.5 S6A with an AAN motor. I
know the AAN IM has a diagonal intake to the plenum (sorry about the
spelling here) from the throttle body that interferes with the positioning
of the UrQ stock radiator position, now you can move the rad to fit into the
compartment diagonally but that then brings up other problems.
After having had a 91 Avant and putting almost 200K onto it I bought a S6A,
I liked how the AAN was smoother running at higher RPMs and thought that was
the way to go for the 20V switchover in my UrQ. I wish I would have listened
a lot closer to advice to use a 91 200T motor. I would probably already be
driving around in a converted UrQ. I thought ahhhh it can't be that tough,
with all the RS2 and 3B parts I bought to convert the AAN over to fit into
the UrQ I could have bought 2 - 3B motors along with the trans and diffs,
rebuilt both. AND THAT'S JUST FOR THE PARTS after buying the AAN. In
retrospect it would have been cheaper to just get an wrecked RS2 or a RR UrQ
and ship it over, then you would have had the harnesses, but that's not as
simple as that sounds now is it:-)
So on the RS2 IM the vacuum line on the very front of the IM, where exactly
does it go?
Does anyone have a vacuum diagram, the AAN has I think 3 vacuum ports, the
RS2 has 2 at the rear and the one at the front?
The black "Charlie Day" car with the fantastic description of "all his kids
having been conceived" in it.who actually built this car?
Vacuum brakes, this was pretty exceptional, these guys had some pretty good
parts bin knowledge.
What did he have for Intercooler, brakes, trans?
Sounds like he did a lot of track days.
Jack
_____
From: suffolkd at aol.com [mailto:suffolkd at aol.com]
Sent: Sunday, September 11, 2011 7:58 PM
To: Jack Walker
Cc: <urq at audifans.com>; <martin at quattro.ca>
Subject: Re: 20V AAN vs 3B
In the black Ur with the guy working on the belts PS pump, its a 3B
That's the 2001 Watkins Glen Audi Club event car on <http://quattro123.com>
quattro123.com
The plumbing is above the EM and behind the block to the Porsche polished
IM.
AAN is also a crossflow head but with a different IM facing into the
radiator area. Ur S4. 1992+ in the states.
It looks like a 1.8t IM with a fifth runner.
Now, in theory one could have mixed and matched parts in that Ur.
The gurus here should know about it
Greg Hayman Autoferme NY or Chris Semple Force 5 NH may know something.
- Scott
Suffolk Associates
On Sep 11, 2011, at 10:31 PM, "Jack Walker"
<jack at walkerperformancegroup.com> wrote:
Aren't those both AAN engines in the pictures?
Very nice installs, could be 3Bs but why would anyone want to put an AAN or
an RS2 valve cover onto a 3B motor, just a bunch of problems I'd think???
Isn't Wagner the company that made all of the EMs and IMs for the RS2
originally?
The front mount IM is made by them
Jack
From: "Martin Pajak" <martin at quattro.ca>
To: "'Scott'" <suffolkd at aol.com>, <quattro at audifans.com>
Cc: <mailto:urq at audifans.com> urq at audifans.com
Subject: Re: [urq] At last, a real figure for a 20V EFIed urQ quattro
Digest, Vol 95, Issue 13
Message-ID: <B94C2807C11841EB8A2B4A8EFE71662F at quattro>
Content-Type: text/plain; charset="iso-8859-1"
Hmm.. is this the same car that was a victim of a flood and ended up on ebay
back in 2007?
I have pics of it from that auction and before hand as well, same car?
Originally it had a zebra interior and then it received Coupe GT cloth.
I ended up with the Zebra from that car and few other pieces as well.
Pic of the engine
<https://lh4.googleusercontent.com/-RUld2oEtaks/TmvPgsxWk-I/AAAAAAAADg4/f1nv
A>
https://lh4.googleusercontent.com/-RUld2oEtaks/TmvPgsxWk-I/AAAAAAAADg4/f1nvA
nghqp8/s912/P0001748.jpg
Interior before swap
<https://lh5.googleusercontent.com/-1V06VyBLPRk/TmvPfs-bSnI/AAAAAAAADgw/chxp
O>
https://lh5.googleusercontent.com/-1V06VyBLPRk/TmvPfs-bSnI/AAAAAAAADgw/chxpO
yhtw0k/cday4.jpg
After swap
<https://lh3.googleusercontent.com/-_gob7N1U-a0/TmvPf8N4xZI/AAAAAAAADg0/xuXJ
C>
https://lh3.googleusercontent.com/-_gob7N1U-a0/TmvPf8N4xZI/AAAAAAAADg0/xuXJC
RWIs-M/eb00_3.jpg
Would love to see more of the current engine variation!
Cheers
Martin Pajak
< <http://www.quattro.ca/> http://www.quattro.ca/>
<http://www.quattro.ca/> http://www.quattro.ca
1982 Audi Ur-quattro, SQ project
1983 Audi 80 quattro, Euro 2-T?r
1984 Audi Ur-quattro, 20vt with 6-speed
1993 Audi 90 CS quattro, 2.5 TDI with 6-speed
_____
From: Scott [ <mailto:suffolkd at aol.com> mailto:suffolkd at aol.com]
Sent: September 10, 2011 4:08 PM
To: <mailto:quattro at audifans.com> quattro at audifans.com
Cc: <mailto:martin at quattro.ca> martin at quattro.ca
Subject: Re: [urq] TR: At last, a real figure for a 20V EFIed urQ quattro
Digest, Vol 95, Issue 13
This ~ 1983 Ur Q showed up at Watkins Glen 10 years ago (2001) with a nearly
flawless 3B 20V install.
It must of been a lot of money back then with the power plant still in a
relatively expensive car in 2001
(although it was 10 years old THEN)
<http://www.quattro123.com/MPTSNeqWatkinsGlenJy01DrivingSchool/20Vqcoupengin
e>
http://www.quattro123.com/MPTSNeqWatkinsGlenJy01DrivingSchool/20Vqcoupengine
75SM.jpg
The car was # 117 I think at a NEQ event at Watkins Glen / Aug? The guy
working on it is Jay from VT, but its not his.
I don't know much more about it. Just food for thought for those in the
USA.
-Scott by BOSTON
quattro123 dot com
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