[BiturboS4] Re: audi coupe quattro tubi turbo?

Ti Kan ti at amb.org
Wed May 21 04:02:25 EDT 2003

While you are of course free to do whatever you want to do with your
car, I would like to suggest that you keep the UrQuattro original.
At least, don't do such drastic modifications to it.  The UrQuattro is
a classic, and as rare as it is becoming, I'd hate to see it molested.
No matter how fast or "cool" the end result may be.

I think you'd also find that the UrQuattro in its original state will
preserve its value much better than one that has been hacked.

If you want a biturbo-powered car, buy a biturbo powered car as it comes
from the factory (i.e., S4).  If you want to modify the car, then use that
as the basis.  It *will* work better because that's the way it was
designed and built, and you'll probably spend less when it's all done.

Just my opinion.

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Laboratories, Sunnyvale, CA. USA
  ///    ti at amb.org
 //////  http://www.amb.org/ti/

desmond auld writes:
> Hi all I am new to this list.  I have spent a lot of time around golf GTI's
> including highly modded turbo ones so have a good idea of VW/Audi cars.  I
> have always liked the original Audi Quattro turbo Coupe and hope to get one
> in the coming months.  It will probably be an early 10valve.
> I want a fast Quattro coupe and so am looking at fitting a 2.7 v6 bi turbo
> s4 engine.  I can get one for very good money.  I have already sourced a
> engine management system for it that can deal with this type of engine.  I
> am not scared of a bit of fabrication and work.  I have been told the engine
> bolts to the gearbox OK and that maybe the steering may need modified to
> clear one of the turbo's.
> Questions are:
> 1.Does anyone know of any other similar engine conversions?
> 2.What problems does the s4 engine give?
> 3. I am shooting for 400 BHP what would your change?  Injectors, compression
> ratio, turbo?

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