[urq] 20V AAN vs 3B and vacuum lines

Mon Sep 12 21:55:22 PDT 2011

I can't answer most of your questions, but I know the answer to a few.

Charlie's car was rebuilt by *Sewickley
Audi<http://www.sewickleyaudipa.com/>near Pittsburgh. Yes, you read
that right- a dealer. They had done a similar
resto on a white 83 UrQ, which Charlie saw and liked, so he hired them to do
the same to his car. As usual, he fell into the "while I'm in there" pit.
Jumped in, actually. (Floor is rusty? Might as well swap in a dual exhaust
RR floor. Yikes.)

On converting an AAN to go into a small chassis- BTDT more than 10 years ago
now when George Baxster in PA was building S2 replicas starting with 90-91
Coupe Quattros and merging in 3B drivelines. I also saw a crate RS2 motor
out at Eurospec (the owner wanted 2 arms and a leg and a half) and also
though- "gee, it looks just like an AAN".

As you found out unfortunately the hard way, it's not particularly close.
The small chassis coil on plug motors were the ABY (S2) and ADU (RS2). They
are similar to the 3B in some respects, but very different in too many to
make it worth while to try to convert one to the other, including vacuum
lines, water lines, fuel, and most significantly the accessory drive, which
is via a serpentine belt (like the AAN) on the ABY and ADU.

HTH-

Steve

*
On Mon, Sep 12, 2011 at 12:29 AM, Jack Walker <
jack at walkerperformancegroup.com> wrote:

> 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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