[s-cars] 2004 S4 Avant V8 -- Report on Test Drive

[Robin Stoddard]

So got it, it's a no go then in the US to swap an AAN engine into a B6 S4.  :-)
It's an interesting thought, but since it would be limited to the track, it might be interesting to do the swap years from now.

Unfortunately it's starting to look pretty bleak for a future high performance Audi in my garage, unless I take the gamble and go with a B6 S4 or build a RS2 sedan.

In other words, for the short term solution and my sanity, the 2014 Z/28 is looking more and more like a viable option.

Cheers
Robin

On 2013-05-08, at 4:03 AM, Taka Mizutani <t44tqtro at gmail.com> wrote:

> You basically made a long winded post that says that Cody is basically
> correct. Regardless, an AAN into a B6 is pretty much impossible
> due to the OBD-II requirement as you stated.
> 
> 
> On Wed, May 8, 2013 at 7:57 AM, Scott Justusson <qshipq at aol.com> wrote:
> 
>> Neither of the below is 'technically' correct.  Chris, Enforcement has
>> nothing to do with LEGALITY.   This swap would be illegal on many fronts,
>> according to the Federal EPA Laws.  Cody, IIRC from the trades, engine
>> swaps must comply with emissions of the vehicle OR the engine, whichever is
>> newer.  The 1991 EPA 'clarification' addresses additional questions
>> regarding engine swaps, but the base laws haven't changed.
>> 
>> So, swapping an 'old' engine into a newer car would be tough, because I
>> doubt the AAN could pass the newer emission standard.  Since every vehicle
>> since 1996 (specifically excluding the AAN) must be OBDII, this will be a
>> problem for a B6 car sporting an AAN.  Since the B6 also never had an AAN
>> 'option' engine, it would be illegal to swap this engine period.
>> 
>> Also inducted into the EPA hall of fame, is the catalyst rules.  Cats must
>> be in the stock location, and of the same number and configuration as from
>> the factory.  Yup, Stromung exhausts are flat illegal too, it's missing one
>> of the cats.
>> 
>> IMO/E a newer engine into an older chassis is not really that difficult to
>> demonstrate as 'cleaner' and more efficient to these rules (AAN into urq or
>> 4k chassis for example).  An older engine into a newer chassis after 1973,
>> is not only difficult, but to the AAN>B6, nary impossible to be 'legal' at
>> the EPA Federal level.  Enforcement?  Lucky for most tweeksters, State EPA
>> mandates are much less strict in enforcement.  But, I know in Illinois if
>> you did this swap, the techs would want to plug into that OBDII port to
>> check a AAN equipped B6, and you would fail until they could.  Since EPA
>> compliance is a condition of license plate renewal, you could enjoy this
>> swap for 11.9 months....
>> 
>> 
>> HTH
>> 
>> 
>> Scott J
>> 4 x 20vt engines, but only 1 chassis with 3B from the factory
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: chris chambers <fastscirocco_2000 at yahoo.com>
>> To: Cody Forbes <cody at 5000tq.com>
>> Cc: Robin Stoddard <robinstoddard at icloud.com>; Keith Franchetti <
>> skidfranc at gmail.com>; S-CAR list <s-car-list at audifans.com>
>> Sent: Tue, May 7, 2013 7:31 pm
>> Subject: Re: [s-cars] 2004 S4 Avant V8 -- Report on Test Drive
>> 
>> 
>> 
>> 
>> 
>> Laws regarding engine swaps vary by state .... Do whatever swap you want
>> here in
>> Michigan.
>> 
>> 
>> 
>> 
>> 
>>> ________________________________
>>> From: Cody Forbes <cody at 5000tq.com>
>>> To: chris chambers <fastscirocco_2000 at yahoo.com>
>>> Cc: Robin Stoddard <robinstoddard at icloud.com>; Keith Franchetti
>> <skidfranc at gmail.com>; S-CAR list <s-car-list at audifans.com>
>>> Sent: Tuesday, May 7, 2013 6:03 PM
>>> Subject: Re: [s-cars] 2004 S4 Avant V8 -- Report on Test Drive
>>> 
>>> 
>>> Legally speaking any engine swaps registered for the road are required to
>> be a
>> same or newer model year engine than the chassis. If you have to go through
>> inspection that's a no-go.
>>> 
>>> -Cody Forbes (mobile)
>>> 
>>> On May 7, 2013, at 2:27 PM, chris chambers <fastscirocco_2000 at yahoo.com>
>> wrote:
>>> 
>>>> Robin,
>>>> 
>>>> How about looking for a  B6 S4 with engine issues and swap in an AAN?
>>>> Buy cheap and build the car you want.
>>>> 
>>>> 
>>>> Chris
>> 
>> 
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