[s-cars] Re: Turbo Upgrades?

[Peter Schulz]

Greg:

See comments:

At 07:10 AM 10/23/2002 -0700, Greg Johnson wrote:
>Quattro Crews,
>
>I have IA's Stage III ECU installed on my 91 200 TQA and a Lehmann
>Exhaust Manifold is on the way.   I'm thinking that if I'm going to go
>to the trouble of swapping out the EM, I probably ought to upgrade the
>K24 turbo as well.  Would be interested in hearing about what those of
>you who have done this have experienced.
>
>I noticed noticed on Hoppen's site they sell three upgrades:
>1) ECU,  2)
>ECU and EM,

the EM wont really increase power - it does increase flow and address potential issues of burned valves on #1 and 5 cylinders with the stock EM

>and 3) ECU, EM and RS2 Turbo.  Is Stage 2 sufficent?   If
>one does Stage 3, is it sufficent or does one need to address the MAF,
>FPR, and injectors as well?

If you really want to get to the potential of the RS2, you must do the turbo, MAF, FI, FPR and ECU at the same time - otherwise you may run too rich or too lean depending on the combination.

(This is a "known" combination, meaning that you can obtain the correct SW from a number of sources ( IA, Hoppen, etc)


>What about the turbo?  RS2?   K26?  K26/K24 hybrid,  Garrett?

Now you are adding to the variables and really need to consult an expert that can match them all.

>Thanks for your collective wisdom and input.
>
>Greg J
>BIRA.ORG

Peter Schulz
1990 CQ
1991 200 20v TQW indigo mica
1991 200 20v TQW titanium grey
Chelmsford, MA USA
peschulz at cisco.com