[BiturboS4] S4 without a turbo? (was.. something else)

Ian McCloghrie ian at codrus.com
Fri Jan 31 09:00:54 EST 2003

On Jan 31, 2003 daniel chisholm wrote:
> Is this the same beginning of the RS6?  Could a turbo mod=450 hp?

It's probably the same bare block, but factory turbo cars generally use
different compression ratios and different cam specs than their
naturally aspirated siblings.  Converting an S4 4.2L NA V8 to RS6
specs would probably require replacing almost everything in the engine
as well as the ECU, and probably a large part of the wiring harness in
between.  Lots and lots of money.


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