100 Turbo Quattro

[Mihnea Cotet]

At 11:59 14/03/2002 -0500, Theron & Laurah Bliss wrote:
>Crazy thought here.
>
>How feasible would it be to bolt an exhaust & intake manifold, turbo,
>intercooler & wiring, exhaust down pipe, etc, onto a 1989 100 Quattro to get
>a 10 valve turbo.  Is it pretty much as simple as that?

Not at all!
It would be feasible but you'll be concerned about the amount of boost that 
you will run because of your engine's high compression ratio. At 10:1 CR, 
you could only run something like 4 pounds of boost without serious danger 
for your engine...that'd be a nice idea though to have a very small turbo 
to blow at those pressures almost from idle and with almost no lag, that's 
the LPT (low-pressure turbo) technology that Saab has been using for some 
years for increased driveabilty and great low-end torque.
But the intake piping won't be an easy thing to do, as well as the exhaust 
routing...might more easily swap a MC2 in your Audi 100 quattro and make it 
produce very low boost (like 6psi as in stock form) and you'll already have 
the knock-sensing ignition...plus you won't have to worry about the 
air-fuel ratio as the CIS-E is pretty capable to supply enough fuel for 
that low boost amounts IMHO.

HTH,

Mihnea