there is no VIN data attached to the ECU. this is the reason you can swap ECUs with similar cars without any problem. or trade a stock ECU for a chipped ECU. the VIN is only on the plate under the windshield and etched into pieces of the car, not programed anywhere.

 

You do know they sell kit cars that use an LS1 mated to an audi/porshe transaxle right?

 

I wasn't aware of it but I'm not surprised. My presumed headache wouldn't so much be that aspect of it (although that'd be another problem most easily solved with money I couldn't justify spending on this). My biggest hassle with an LS engine would be integrating the electronics - repinning harnesses to correctly pipe the proper signals to the right ECU pins, compensating for sensors the Audi computer is looking for but which potentially might not be on the LS, dealing with differences in sensor voltages that could throw off the operation of the engine (ie, a MAF on one engine might be hot-wire metered and the other may be something else).

I'm kind of talking out of my *** since I don't know if there are such differences, but in that regard, using one Audi engine to replace another should be easier in theory than using a GM engine in an Audi. If it was a track car it'd be a different story but it is still purely a street car and I want it to run right and pass inspection without requiring the hassles or cost of an expensive standalone system.

 

i was just looking on car-parts and you can get an 2000 A6 4.2 engine for about 2500-3000 with around 60000-80000 miles on it with accessories. that is freaking cheap. now i'm debating whether i should even buy a new car next year and get rid of this one or just do a transplant. maybe i should buy a cheap DD and sell this car. then use the money left from buying the DD to get A4 with a messed up front end and get a totalled A6 or A8 with a messed up rear end and do the transplant.

Siena-can you put up a list of the audi V8 engines with the year and car they came in? also if you could differentiate whether they're available in US or Europe it'd be great for people who don't know.

 

Except for US vs Europe, a lot of that is in the link up in his first post. Your car is dbw so the S8 engine is the no-brainer. My car is ndbw, so I could use the S8 engine too, but it'd be a lot more work converting to dbw. I'd more likely use the most powerful ndbw engine I could find. If it wasn't at least 300hp though I'd resign myself to the extra work of the dbw conversion.

 

the nDBW v8s are indeed at least 300hp so no worries lol. i guess if i do the conversion, i could rock a custom AS7 hehe. or maybe a plate with just AS7 on it. i'm so tempted to sell my car like right now because i figure i could use that money to build a Franki.

 

I'll post up a list of Audi V8 engines, 32 and 40V, DBW and NDBW.

 

Engines for NDBW cars, '95 - '99 - A8 D2 chassis:

3,7L V8 32V 230hp (AEW)
4,2L V8 32V 285hp (AGH)
3,7L V8 32V 230hp (AKJ)
4,2L V8 32V 300hp (ABZ)
4,2L V8 32V 300hp (AKG)
4,2L V8 32V 300hp (AKG)
4,2L V8 32V 340hp (AHC)*
4,2L V8 32V 340hp (AKH)*

*Audi S8.

Engines for DBW cars, '99 - '01 - A8 D2 chassis:

3,7L V8 40V 260hp (AKC)
3,7L V8 40V 260hp (AQG)
4,2L V8 40V 310hp (AQF)
4,2L V8 40V 310hp (AUW)
4,2L V8 40V 245hp (AEM)
4,2L V8 40V 360hp (AQH)*
4,2L V8 40V 360hp (AVP)*
4,2L V8 32V 360hp (AYS)*
4,2L V8 32V 360hp (BCS)*

*Audi S8.

Engines for DBW cars, '99 - '01 - A6 C5 chassis:

4,2L V8 40V 300hp (ARS)
4,2L V8 40V 300hp (ASG)
4,2L V8 40V 300hp (BAS)#
4,2L V8 40V 340hp (ANK)*
4,2L V8 40V 340hp (AQJ)*

*Audi S6.
#Audi Allroad.

The 32V engines will require a 10-bolt flywheel, in the UK, all were tip trans, in Europe, there were manual options, but with approx. 75% tip, the flywheels are hard to come by. I had the flywheels custom made.

The 40V engines will require an 8-bolt flywheel. Same manual limitations as 32V models, but at least the B5 S4 flywheel is a direct fit.

Later DBW engines can be used in NDBW cars, but will require the throttle bodies replacing with cable-operated versions. Not worth it in my opinion.

If going stand alone, DBW and NDBW engines can be mixed in various B5 models, DBW or NDBW.

 

thank you so much Siena. I think my car would be a perfect transplant body for the 40V engine or if i can get my hands on a low mileage S8 engine. also i was looking at car-parts.com and they have 01 A6 with a 4.2 V8 with engine code AWN. what's up with that? i searched for 01 A6 engine, zip code 13903 and for part i selected engine. i can't post the link as it'll just send you to the homepage

 

Why is that are they using frames? Oh and devil, you better let me know when you're doing this. I want to be there for at least most of it.