RS6 Plus - information

[Erik]

I'm quite interested to know more about the extra radiators for the intercoolers. Anyone who can explain more?

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The sports version Audi RS 6 from quattro GmbH
Audi RS 6 plus with extra zest

quattro GmbH is now launching an ultimate sports version of the RS 6 developing 353 kW (480 bhp). The RS 6 plus is equipped with features echoing the world of motor sport and comes with new colour concepts.

With an output of 480 bhp, the RS 6 plus generates 30 bhp more than the standard Audi RS 6 version. The peak torque of 560 Nm is achieved across a range that now extends from 1950 rpm all the way up to 6000 rpm – in other words, the engine speed range across which this enormous traction is now available has been increased by a further 400 rpm.

The secret to this optimised performance is a new engine control unit. In order to maintain stable thermal conditions in the light of its uprated performance, the technical specialists from quattro GmbH have positioned two additional radiators behind the intercoolers.

The road performance is unequalled by any other model in the field of competitors: a mere 4.6 seconds elapse for the standard discipline of sprinting from 0 to 100 km/h. The Audi RS 6 plus hits 200 km/h in just 17.3 seconds.

Technology for the sports driver

The DRC suspension has already created a sensation on the Audi RS 6. DRC (Dynamic Ride Control) involves diagonally linked dampers with a central valve that reduces the rolling and pitching movements of the vehicle body by means of the damper characteristic, without the use of electronics.

Further specific features now underscore the professionalism and sports character of the Audi RS 6 plus.

The Audi RS 6 plus has perforated brake discs; these are visible between the five arms of the larger 19-inch cast aluminium wheels.

Buyers of the RS 6 plus can in addition order sports suspension plus, at no extra charge. With variable damping, firmer spring/damper settings and a body 10 mm lower than the RS 6, its road behaviour and responsiveness are even more active and sporty.

A counterpressure-optimised sports exhaust system with matt black, oval tailpipes acts as a forceful mouthpiece for the lusty sound of the eight-cylinder engine.

The trim strips and roof rails, likewise in matt black, outwardly visually underline its enhanced sportiness.

Inside this car, aluminium pedals signal the special sports emphasis of the Audi RS 6 plus.

More equipment, more individuality

The new equipment concept is a major plus point. The Audi RS 6 plus has black natural leather seats and carbon fibre trim strips as standard. Customers can choose between all standard exterior colours of the RS 6 – or between the Blue, Silver and Black/Cognac packages that are available at no extra charge.

The Blue equipment package comprises the special colour Sprint Blue, pearl effect, for the body; the seats are in black leather with silver-coloured Alcantara centre sections. The blue threads in the carbon fibre inserts echo the body colour.

The Audi RS 6 plus with Silver package has the special body colour Silver, metallic, and the black leather seats contrast subtly with the Alcantara centre sections, which are also black. The matt brushed aluminium trim inserts provide a note of contrast here.

The Black/Cognac equipment package looks particularly stylish. The exclusive body colour of Ebony Black, pearl effect, harmonises perfectly with the trim strips in black piano finish. Cognac-coloured leather seats with black piping accentuate the interior.

Even the vehicle identification number emphasises the fact that the Audi RS 6 plus is something utterly special. Its last three digits are reproduced on a plaque inside the car, displayed on the centre console. No more than 999 of this version will be built.

The Audi RS 6 plus can be ordered now, exclusively with Avant body, for delivery from the end of April. The recommended retail price inclusive of VAT is 101,050 euros.

[rs6_newyork]

THis little fluff piece

http://www.carpages.co.uk/audi/audi_fame_for_audi_race_chasing_duo_26_06_04.asp?s witched=on&echo=641392898

implies the RS6 plus has a new exhaust system .. is that correct?

[Nordschleife]

RS6 Plus has the 'sound enhanced' exhaust, additional bhp is from reprogramming, according to the people I have spoken to.

R+C

[audirs6sport]

so does that mean rs6+ has extra two radiators and two bigger ICs? or just additional two radiators with no change in IC size.

[gjg]

from Evo test:


A revised engine management unit accounts for the extra horses, but there's more to the transformation from RS6 to Plus than a bit of electronic tweakery. From its racing experience with the RS6 in the US (the RS6 saloon won both the drivers' and manufacturers' titles in last year's Speed GT World Challenge), Audi knew that Cosworth could easily get extra power from the engine, it was just that cooling would be a problem. So the RS6 Plus features two extra water radiators sitting behind the twin intercoolers on either side of the engine in order to cope with the extra cooling demands.

didn't see anything on larger intercoolers.

gg

[Phinnbill]

Now I am confused. As I understand it, the hp goes from 450 to 480 when moving from the RS6 to the RS6 Plus. That's only 30 additional horses. I use the word "only" on purpose. Audi tweeks the EMU and adds two extra raditiors because the engine will run hotter. Yet for the chip mods from other vendors (with or without modified exhaust, etc.) you can get up to te area of 530 hp with no cooling mods. Seems like I am missing something here? Or are there things the other vendors aren't telling us? Or is Audi just being overly cautious?

[audirs6sport]

Originally posted by gjg
from Evo test:



didn't see anything on larger intercoolers.

gg


i wasn't referring to only that post. there were previous posts about rs6+ where it stated that the rs6+ had larger intercoolers vs. the rs6.

phinnbill:
the rs6's intercoolers are actually hooked up to the engine as well (not just the turbos) to cool down the engine temp. Audi being just overly cautious? i wouldn't use the word overly, but i would say it's for the purpose of bringing down the temp. The chip modifiers out there all raise the boost (psi) and advance the timing as well, & etc. which results in higher temp. the rs6+ tweak on ecu to gain that extra 30hp is done by increasing the boost, perhaps remapping, etc, which will once again, raise the temp. if u noticed the chiptuned rs6's out there all tend to have higher temp while running vs factory. remember audi has to cover their a$$ up if anything goes wrong with the car through warrenty issues, in contrast with the aftermarket modifiers. they wanna keep everything at most stable level, as well as trying to avoid as much wear and tear of the engine life possible. i hope this makes sense. it's 4am here!! =)


:addict: :addict: :addict: :addict: :addict: :addict: :addict: :addict:

[Nordschleife]

There is an interesting history to those additional radiators.

Originally, quattro GmbH planned on fitting extra radiators to US spec RS6s. Then the Dollar tanked against the Euro and Audi was caught with a huge cash shortfall. Not wanting to throw good money after bad, they cancelled the extra radiator project.

Fast forward to the RS6 Plus, and now quattro GmbH can solve its storage problem; here is a new model that it can load up those space hogging radiators on. This is great, its a result, they are not caught with an embarrassing write-off.

Back in April 2002, the USD was worth EUR 1.14, now its worth EUR 0.83. What this means is that given a well specified RS6 that sells for EUR 91,000 pretax in Europe, the following applies. In April 2002, about USD 76,000 would be required to buy the car. Today the same car would cost USD 110,000. A difference of USD 34,000. The US gets some very cheap cars.

For those interested, MTM knows how to order these radiators, but don't rush, Bavaria is on holiday for 2 weeks from Monday.

R+C

[Nordschleife]

Originally posted by audirs6sport
i wasn't referring to only that post. there were previous posts about rs6+ where it stated that the rs6+ had larger intercoolers vs. the rs6.


Larger intercoolers was a figment of somebody's imagination. I could not speculate as to their motives.

R+C

[gjg]

but don't rush, Bavaria is on holiday for 2 weeks from Monday.

this is the weekend to avoid in Germany ...... 100+ km stau everywhere, adding Dutch caravans and you may as well stay home and drink some Pilsner Urquell, because you're not going anywhere anyway .......

:cheers: :cheers: :cheers: :cheers: :cheers: :cheers: :cheers:

[gjg]

The chip modifiers out there all raise the boost (psi) and advance the timing as well, & etc. which results in higher temp.

could we get some information on differences in running temps from someone running Euro chips (MTM, Hohenester, etc.) ? Oil temp that is ?

Or any chip for that matter ....

:vhmmm:

[Nordschleife]

Originally posted by gjg
you may as well stay home and drink some Pilsner Urquell, because you're not going anywhere anyway .......



Gambrinus???:cheers:

R+C

[gjg]

same brewery, very good beer too. I like the Urquell little bit better but would not discriminate ....... :D

[audirs6sport]

Originally posted by gjg
could we get some information on differences in running temps from someone running Euro chips (MTM, Hohenester, etc.) ? Oil temp that is ?

Or any chip for that matter ....

:vhmmm:


hmm for euro chips dunno, but for the us tuners possible. i had my buddy monitor the temp difference from stock to performance. there was about 15 degree celcius difference on a cool weather night around 2-3am. i might be able to obtain more accurate difference results for revo or giac; would u still be interested?

[gjg]

there was about 15 degree celcius difference on a cool weather night around 2-3am

that seems to be little bit too high difference for oil temp just with a chip, if the car was run the same way.

With stock RS6 Avant I had similar or higher difference depending on way the car run - cruising with traffic flow between 140-200 km/h the oil stayed relatively "cool", WOT with runs to 280+ when possible and cruise between 240-260 raised the temperature by about the same difference as you indicated.

From previous experience with S4 and S6 (this was AAN turbo) which was modified from 240 hp to about 390 hp the oil temperature did not change with chip/mechanical mods - always dependent on driving style and conditions.

I am not, by far, an expert - just seems strange that UNDER SAME CONDITIONS chipped engine would run temperature 15+C higher than stock. If that was my car I would seriously take a look to make sure there is no other problem (including testing chip/s/ from different tuners).

my .02

:rs6kiss:

[plus]

Originally posted by Nordschleife
There is an interesting history to those additional radiators.

Originally, quattro GmbH planned on fitting extra radiators to US spec RS6s. Then the Dollar tanked against the Euro and Audi was caught with a huge cash shortfall. Not wanting to throw good money after bad, they cancelled the extra radiator project.

Fast forward to the RS6 Plus, and now quattro GmbH can solve its storage problem; here is a new model that it can load up those space hogging radiators on. This is great, its a result, they are not caught with an embarrassing write-off.

Back in April 2002, the USD was worth EUR 1.14, now its worth EUR 0.83. What this means is that given a well specified RS6 that sells for EUR 91,000 pretax in Europe, the following applies. In April 2002, about USD 76,000 would be required to buy the car. Today the same car would cost USD 110,000. A difference of USD 34,000. The US gets some very cheap cars.

For those interested, MTM knows how to order these radiators, but don't rush, Bavaria is on holiday for 2 weeks from Monday.

R+C

But can you actually see the radiators looking at the engine bay?

PLUS.

[Nordschleife]

From underneath look into the exhaust air passage way for the intercoolers.

Experience is that the air which passes through the intercoolers does not rise much in temperature, so its a lot cooler than most of the other air in the engine bay. So an ideal spot for another interchanger in a hot and cluttered environment.

R+C

[plus]

do intercoolers and radiators mean the same thing here?:vhmmm:

[gjg]

no

[plus]

may just take nordschleifs word for it!:0:

[audirs6sport]

Originally posted by gjg


that seems to be little bit too high difference for oil temp just with a chip, if the car was run the same way.

With stock RS6 Avant I had similar or higher difference depending on way the car run - cruising with traffic flow between 140-200 km/h the oil stayed relatively "cool", WOT with runs to 280+ when possible and cruise between 240-260 raised the temperature by about the same difference as you indicated.

From previous experience with S4 and S6 (this was AAN turbo) which was modified from 240 hp to about 390 hp the oil temperature did not change with chip/mechanical mods - always dependent on driving style and conditions.

I am not, by far, an expert - just seems strange that UNDER SAME CONDITIONS chipped engine would run temperature 15+C higher than stock. If that was my car I would seriously take a look to make sure there is no other problem (including testing chip/s/ from different tuners).

my .02

:rs6kiss:


actually i was driving the shit out of the car at that time =)

[gjg]

:thumb:

[TaTaPiRaTa]

For those interested, MTM knows how to order these radiators, but don't rush, Bavaria is on holiday for 2 weeks from Monday.


If anybody gets them pls inform us all.