audi a4 b5/b6 2.7 / 2.8 / 3.0? biturbo - what do you think?

[work]

hi guys, i'm new on this forum, and looking to find some answers....
i'm looking for an advice, before i start anything

i want to buy an audi a4 b5 - 2,7i / 2,8i v6 quattro or an audi a4 b6 3,0i v6 quattro and make some engine mods...
both models look very nice, so the shape is not a problem, the problem which model / engine do you guys suggest?
i want to mount 2 turbos on the engine, and of course to change the pistons / rods / camshafts / clutch / injectors / remap ecu / etc
what you guys suggest me to pick and what should i know about those b5 /b6 and theirs engines?

thanks in advance!

[Seerlah]

If you want 2 turbochargers, save yourself the trouble and get a B5 S4 with the 2.7T engine. Search that section and learn the routes people take when it comes to building their vehicle.

http://www.audizine.com/forum/forumdisplay.php/3-B5-S4-RS4

[work]

thanks Seerlah for the advice
the problem is s4 b5 is a little expensive :)
i'm thinking at b5 3.0 did anyone mount 2 turbo's?

[Seerlah]

No. You would need custom pistons to twin turbo the 2.8 or 3.0. If you throw twin turbochargers on those blocks stock, you can't run much boost. And you can get a used B5 S4 for roughly $8,500. Modded ones that were maintained well sell for more.

Oh, just noticed you are in Romania. I guess things are more pricey over there. But here is a thread on Vortex where a person explained how he turbocharged the 2.8 block. Read page 2 where he says what is needed.

http://forums.vwvortex.com/showthread.php?5543200-Dyno-pull-27.5-psi/page2

And here is an interesrting thing currently going on for the 2.8.

http://www.audizine.com/forum/showthread.php/476393-Single-Turbo-on-your-2-8L-30v-V6

Single turbo on custom 2.8 NA engine would be a nice route (expensive). But if you are looking into doing an actual engine build, the B5 S4 is just a simpler platform to start off on. The 2.8 or 3.0 NA will take a lot of custom work both internally and for the turbo setup, because the market simply does not exist. It only exists for superchargers.