Ok, Just kicking around some Ideas. I have done engine swaps before And How about an RS6 engine into the S6. Say I find a s6 at a great price. I know I would need the RS6 wiring harness,ecu exhaust for turbo etc but still where would that put me, $$$ wise I found a rebuilt RS6 engine on eBay for 11k a the car say super deal 10k another 10-15k for misc upgraded suspension, breaks custome exhaust come out $30-40k or so for what would be functionally an RS6. Which go for what 100k+? I am fine seeing where this na set up goes but just a concept anyway. I am sure a few of you guys have pondered this I can’t be the only one. Any reason why this wouldn’t be feasible.
We are talking the real RS6 motor the v10 tt… not the girl v8 motor
LOL
Actually, I had a line on a v10 RS6 motor for 2000 Euro. At that price, it was very tempting.
I had no interest in the turbos though. I just wanted an engine that could take boost, so that it would be ready for an aftermarket supercharger.
The killer is the freight. You know that the RS6 engines are only in the UK and Europe, right? So, after you buy the engine, now you have to ship it over. Then, you have to install it, and hope everything bolts up.
Then, add a supercharger and go to town.
If you want to do that, you are better off just supercharging the stock S6 v10 engine first, and then seeing how it holds up. It should be something very similar to the S4, with the torque distributed over 10 rods instead of 8.
Have you bought the S6 yet? Start with that
I like the kicking around of ideas until the formula is tested. I think these open conversations are good to help bring out why the current path is going to be the best.
It’s interesting to hear you looked into the RS6 motor that’s a hell of a deal. It would be interesting to see if they even started with the same foundation or if the RS6 motor had major makeover changes. I agree with you I think a motor swap might be too much and it would be going in a counter productive direction. I think the v10 cam have some real legs with the headers and a solid exhaust.
Yeah shipping was about 3k. Still looking for that special one so no purchase yet. might take me a while looking for an amazing deal. Took me 4 months to find my g35.
Yeah, they come up for a few thousand euro once in awhile if you keep an eye out.
Here is one now, asking 3200 OBO. The bastard turned down my offer of 1500 EUR
http://www.ebay.de/itm/131453712089?_trksid=p2060353.m2763.l2649&ssPageName=STRK%3AMEBIDX%3AIT
your link isnt working
you will have to copy/paste that link.
too lazy
Lol! nice try ;D
I can’t believe how good of a name you give America with those bids lol. You greed driven Canadian lol. I say blame it on Canada
Hahaha
Yeah, I lowball all the time. It actually works, about one time in a 100. Then I find myself scrambling to come up with the cash, for an offer I never expected to be accepted. LOL
I just offered $5000 on this one. Was this what you were trying to post, purpel?
http://www.ebay.com/itm/301501101385?_trksid=p2060353.m2763.l2649&ssPageName=STRK%3AMEBIDX%3AIT
It was an instant decline. I have no idea what it is doing in North America. They also have a brand new S6 v10 long block, asking $10500 or best offer.
and an R8 engine for a bit more
Yeah and German engines to. The link you gave also had them in it at the bottom of the page. Here is one 8 grand.
http://www.ebay.com/itm/Motor-Engine-Moteur-Motore-Audi-RS6-5-0-V10-Biturbo-BUH-580-PS-Garantie-/151535747857?pt=LH_DefaultDomain_77&hash=item23483c0311
These are important too maybe? lol hmmm makes me wonder How well do the exhaust manifolds match up on these engines?
They dont. The RS6 uses some clips. The S6 uses all bolts/studs to attach to the block
Anyway, turbo would be too much work, and then you are limited in power by the OEM RS6 turbos. If I went with any forced induction, it would be a supercharger. Something like the JHM Vortech kits for the B6/B7 make sense to me.
But like I said earlier, no need to have an RS6 engine to get started on that.
purpel, spend a few hours and research the JHM S4 Vortech supercharger kit. I’m sure youll find it really interesting stuff.
Here is a recent thread of some testing with a stage II kit. Pretty incredible for a sub $10k kit
http://audirevolution.net/forum/index.php?topic=3241.0
Now imagine that on the v10
I am familiar with vortech. well in general i am, they use the “Snail” centrifugal supercharger a “true” supercharger. Yeah, I can see that especially with the ground work you put in already with those headers. So pretty BTW can’t wait to hear that beast. So I agree totally a supercharger for you would be Ideal. Going back to that corn grinder on my Buick technically not a “true” suprecharger. I must admit I love the look of a Positive displacement blower plus the fit is so easy, Intake manifold out blower in it shortstack water-to-air intercooler gotta watch that hood clearance. haha then add water/meth injection ( ;D there I go again) keep that charge cool tune her up real nice advance timing. 
Boom there you have a beastly little set up well… With the proper supporting mods. yeah as far as efficiency the vortech with air to air intercooler is more efficient also there is just less that can go wrong no inter-cooler pump to wire up or worry about burning out. definitely I would not think it would take much to adapt what already exists especially, if they are similar engines. but still I like what I like and seeing that blower sitting on top of the engine always made me smile.
That is awesome! No intercooler? Funny I mentioned my roots blower because of VF… but they use a roots supercharger, which I know will lose efficiency compared to the vortech. I see JHM seems to be the system of choice but never a bad Idea to have more than one dog on the hunt keeps other venders honest, anyone having conversations with VF?
As far as I know, JHM is the only valid supercharger left for the B6 S4. VF was always crap. IIRC, VF along with PES, has a design that utilized an undersized blower. So, it ran super hot, noisy, was ificient, and provided very little repeatable ‘real world’ power gain. Plus, their was little to no in-house testing completed by VF, PES, etc, so some customer cars went BOOM!!!
JHM wasnt the first on the scene, but it seems to be the last man standing. That is just the way they do things. Test the hell out of everything on their company cars (not customers), while intentionally taking engines to the limit and beyond, in order to find the safe operating limits of the motor when boosted.
From what I remember, the advantages of the JHM Vortech kit are:
low cost
proven reliability
tons of power available without upgrading the unit itself - easy and cheap future upgrade to stage II (built engine needed)
very high efficiency
generates less heat than a roots type, so at stage I no intercooler is needed
stealth install
very little supercharger whine
Tuned by JHM calibrator, who is the only guy I would trust to tune a forced induction Audi
So, it wasnt long after the JHM supercharger was released (within a couple years) that all the other options just kinda disappeared. There isnt much of a decision to make, when the best kit is also the cheapest.
Just on track record alone, I woulnt supercharge an Audi, unless the kit had the JHM name on it. Even large, supposedly reputable, companies like APR have screwed their supercharged customers. So, Ill just stick with JHM, a company that I feel is trustworthy.
Fair enough, A quality system that lasts speaks volumes. The system is simple + efficient that is a recipe for being awesome. I still cant believe they were not running an Intercooler. I could totally see the piping would be a nightmare in an already confined space.