So here is the deal. I just started an engine build for my A4. I ordered a short block from QED maule 225tt pistons and corillo rods. I am going to get a ported head with a good vavle train next. I am having trouble desiding what turbo to go with the new engine. So there is the list below and I am looking at a T3 flange. They are in the order of what I want.

 

It all depends on how much power you want, and where you want it. If it were me- I'd ge the 2871. It has a quicker spool with the power down low, but not as much high end power.

I'm not sure on the 3076 vs. 3086, so I wont comment on those two.

 

you need to rid that 3082 and go: gt2871r, gt3071r, and then gt30r (gt3076).

The best on there will be the 3071r or the 30r for insane power (have seen a gti with 500whp with it).

 

keeping stock displacement, or bumping it up to 2.0l ?

 

^that would definately be 2.0l


but it all depends on what kind of power and drivability you want..

if you want insane power, up to 450Awhp,with a semi decent powerband then go with the 3076r

if you want a good amount of power, probably up to 400Awhp. and a bit more streetable turbo, then go with the 3071r

or, if you want an excellent powerband with gobbs of power still, then the 2871r would be perfect. very streetable, responsive, and good for track(roadcoarse) use. while still being able to reach 350+Awhp..

i would personally be torn between the last two

 

Stock displacement. I was thinking about going 2.0l but I dont think that it is worth the extra trouble

 

My only complaint about the gt2871 is that I will get used to the power to soon and want more but I guess that would happen with any upgrade. If I get the smaller one than that gives me room to upgrade.

 

definatley bump up the displacement.. it will be worth the trouble if you got the cash

 

I still have a little time. I will talk around. Why do you say go 2.0L

 

Quicker spool mainly, which means a larger powerband with any of those turbos.