[s-cars] urS4 chipped boost level?

[Sean Douglas]

Our local s-club did a dyno day earlier this year and we ran 6 cars through
it, 4 full RS2, one chipped K24 and one "stock".

This was on a Dyno Dynamics, which tends to produce wheel HP numbers that
are relatively low compared to Mustang, Dynojet and Dynopack.

The RS2'd cars ranged from 268 to a high of 317 WHP. My car was at 297 which
is full RS2 with RS2 injectors and MTM software on 94 pump. The other at 317
is the same as me, but with Uncle Bob's chipset and 94 octane plus toluene.
The 268 WHP one was with Lucas Delphi injectors / MRC software with 4 month
old fuel.

The so-called stock S6 was 215 WHP, which we suspect is chipped, but the
owner doesn't seem to know for sure (carpet is cut). Too bad we didn't have
a legit stock S6 which would have given us some good baseline numbers.

My dyno chart can be seen here:

http://forums.audiworld.com/s4s6/msgs/112477.phtml

Given these numbers, I'm fairly confident that a well sorted RS2'd AAN can
make 370 HP at the crank.

Also, not that I advocate this, but I have "heard rumours" that my S6 has
run with and passed the new Mustang GT (300 HP) at high illegal speeds as
well as beating a 4th gen Camaro (~320 HP) from a standing start.

Sean D.

> -----Original Message-----
> From: s-car-list-bounces at audifans.com [mailto:s-car-list-
> bounces at audifans.com] On Behalf Of Eric Phillips
> Sent: November 17, 2006 6:01 AM
> To: Taka Mizutani
> Cc: s-car-list at audifans.com
> Subject: Re: [s-cars] urS4 chipped boost level?
> 
> Well, folks make claims.
> 
> Dyno charts would settle any difference of opinion on the issue.
> 
> On 11/17/06, Taka Mizutani <t44tqtro at gmail.com> wrote:
> > You mention only 340hp with RS2 stuff- what is your take on the claims
> by
> > several
> > tuners of 370hp on pump gas w/ full RS2- EM, turbo, MAF, injectors,
> > software?
> >
> > I've driven full RS2 cars and I don't think that 320-340hp is a proper
> > assessment- my
> > chipped 200q was very conservatively a 260-265hp car, possibly 270-280
> and
> > full RS2
> > cars are waaaaaay faster- I would estimate far more than 50hp, closer to
> the
> > 90-100hp
> > gain judging by the difference in acceleration. They will run away from
> my
> > old 200.
> >
> > Normally aspirated Mustang Cobras ('99 & '01) can rate a decent 320hp
> with
> > about 3300-3400 lbs.
> > curb weight, will pull about the same as a full RS2 car, maybe a little
> > stronger, with a good 500lb.
> > weight advantage.
> >
> > Taka
> >
> >
> >
> > On 11/17/06, Eric Phillips <gcmschemist at gmail.com> wrote:
> > >
> > > Since a rebuild is somewhere near $400-500, the owner saves a boatload
> > > of cash going that way.  To get higher than 270HP, getting ahold of
> > > the RS2 EM, turbo and properly-flowing injectors, you can get 320HP.
> > > And this is with off-the-shelf ECU tuning maps.  Adding a front-mount
> > > intercooler could bump the 270 to 280 or so, and the 320 to 340 or so.
> > >
> > > The FMIC adds another $1300 to the mix.  To go higher than 320, custom
> > > exhaust manifolds and bigger exhaust systems start to pile on the
> > > cash, and once you're in the 400HP range, bottom-end work is starting
> > > to become necessary (so say some - not everyone agrees.)
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