I am with you on this, it may not be the best or most economic solution to low output but it certainly is "A" solution. I have seen pullys for the supercharger at like 12 psi so a light pressure turbo should work great, SAAB has had that with great sucsess for years. I would help you but its kinda hard to do that from STL Are you going to A-symetrically turbo it like SAAB's v6 or run it from both banks? Good luck to you, I know it doesnt make the most sence to most, and I wouldnt do it to my car but I support the fact that you want to make your car unique. I just cant believe that nobody else can get past the fact that a 2.7 is cheaper blah blah blah... and realize that your just another guy modding his well loved Audi!!! IMO, get over it.

Good luck, Matt.

 

O and btw, I thought the 2.8 and 2.7T both had 4 bolt mains, just that the 2.7 had forged internals instead of cast? And also, the 2.8 has better breathing heads than the 2.7 unless you upgrade to RS4 heads.

 

Nope, 2 bolt main on the 2.8. Don't know about the head design.

 

How about fabricating something similar to the squires turbo system? Basically a rear mounted turbo... So if you take it to a muffler shop, have them combine dual exhaust into a single collector after the the cat, and mount the turbo that way. But you should check the space. By the time you add turbo on the underside, you may not have any ground clearance.

Also Auditech has a really good point. How that hell are you going to tune that bastard? Let say hypothetically a stock MAF can possibly deal with metering the air correctly and the stock injectors can handle the added load. (Finding 2.7T injectors are not that big deal though) I am really not sure whether the stock mixture map can handle the change.

Also for the cost, lets run a ball-park estimate.

Used turbo: $150
Mufflershop labor: $65/hr at 8 hours = $520(At least find a shop with a mendrel bending rig)
Mufflershop part: $150
Miscellaneous rubber/silicone pipes and connectors: $150

This is already close to $1000, and doesn't even include Boost control, oil lines and etc. Yes you may find a small turbo with built-in wastgate, but you probably want a boost controller of somesort, since you wouldn't have any other way of tuning the car. With all that said, $1000 really won't carry you much far.

I am not discouraging you here in anyways here. But I just don't want you to have a non-running brick in your driveway. I have done that too many times in my early days.

 

Forget that entire 1K, my friend owns the shop and I'll be helping we have enough scrap for all the piping and yes we do have a bending machine.

So I just need to pay for a turbo and boost controller.

I might just get a 50 shot dry nos