2.7 vs 4.2

[JShadzi at aol.com]

>I agree that the 2.7t offers Audi significant headaches when justifying the
>4.2.  however there is something else to consider here - if that engine was
>not designed for 350 hp in the way that the RS4 has been, what sort of life
>are these 2.7t chipped engines going to offer.
>

Hehe...a chipped 2.7 will last forever, I don't think there will be any negligible life span loss on the motor itself, not even on the turbos.  The 2.7 motors, in stock form, are loosing turbos regardless of chipping, the 2.7 bottom end can support well over 500hp without modification.

>I think that either Audi is going to have a very lucrative parts business
>based on relative cost from rebuilding these engines in a few years, or
>their are going to be a ton of broken engines with lots of Japanese
>interiors/finishes around.
>

Its doubtful that Audi will be rebuilding any of these motors for any reason...

>So the issue in say 2006 is going to be whether to buy a S4/A6 2,7 with a
>broken engine for $2K and pay $30K to build it to an RS4 spec - or (say)
>$50K for the then offered S4 with a version of the 4.2 engine?
>
>Dunno, worth pondering.

Its highly doubtful, these motors ave very strong and overdesigned, an RS4 motor is just as overdesigned at 380hp as the 2.7tt is at 250hp.

Javad