New S4 engine data

[KresoF1]

2995ccm V6 FSI Roots Kompressor
333ps
420Nm

0-100km/h: 5.4s(manual)
S Tronic will be 0.2s faster but, we need to see will it be in the offer from the start.
Regarding S5 it will use 4.2L V8 till end of its model life. Maybe some power/torque increase in MY2010...

Same engine will go also in A6 with 290ps.

[Rage]

Thanks. I thought it was inprobable that they would switch the S5 V8 to something else.

[tvrfan]

thats not all right. the 290ps version has 420 nm. the 333ps version should have more! thats said in lates AMS. they had a complete technical overview and picture from this engine.

their are also rumours that the engine would get named KFSI which would be perfect. K(ompressor)FSI T(urbocharged)FSI.

anyone heard about that KFSI naming??? i hope it will be true!!! because TFSI for a kompressor-engine is really dumb.

[Leadfoot]

2995ccm V6 FSI Roots Kompressor
333ps
420Nm

0-100km/h: 5.4s(manual)
S Tronic will be 0.2s faster but, we need to see will it be in the offer from the start.
Regarding S5 it will use 4.2L V8 till end of its model life. Maybe some power/torque increase in MY2010...

Same engine will go also in A6 with 290ps.

So it looks like my original statements of supercharge for the S4 and the S5 and S4 running different engine policies was indeed correct. :thumb:

The output should be enough to allow the S4 to stay ahead of the 335i. The S5 engine developments are harder to predict, VL is a probable but what's the possible power increase? I (me speaking here) doubt we will see an increase unless the S4's actual performance is better than the S5. There is still a lot of enhancements that can be done on the S5 before anything major needs done to the engine, S/Tronic will shave some tenths off it's acceleration and sportsdiff will make a marked difference to it's handling. These two things on their own could make the S5 every bit as good a car as the old RS4 is.

[KresoF1]

thats not all right. the 290ps version has 420 nm. the 333ps version should have more! thats said in lates AMS. they had a complete technical overview and picture from this engine.

their are also rumours that the engine would get named KFSI which would be perfect. K(ompressor)FSI T(urbocharged)FSI.

anyone heard about that KFSI naming??? i hope it will be true!!! because TFSI for a kompressor-engine is really dumb.

Article said "maybe 330ps...". Read more carefully, they did not mentioned more torque at all for S4 engine...

[Thrives]

Definitely seems to be marked out to be a 335i killer although of course its pricing may not quite match that of the 335i. What are the tuning opportunities here ... 420nm sounds a bit underpowered which could mean that a mild boost could be possible without sacrificing reliability?

0-100 sounds fair at 5.4 with S-tronic making it close to five flat. What do you guys reckon it will do at 0-200 ... <20s?


Thrives

[pampas]

so the S5 will be faster? at least in a straight line? cause on the track, the S4 will use the new QTV and S-tronic in it's favor, at least for now when we don't get it in the S5.

[AuditudeA642]

Nice this should be a real good car. What can be done to get more hp out of a Supercharged engine??? Pulley, DP's, Exhaust, custom tune, anything else that will not be too expensive. Do you think with minor mods it would be faster than the b7 rs4??

[ZeroCool]

@KresoF1...

Are you really sure about this figures? Because after the presentation of the engine in Vienna, Austria...there was the info, that this engine in the A6 will have 290HP and 420Nm ...

So i think that the Engine would have a little bit more Torque in the S4 - don't you think so?

[Leadfoot]

Definitely seems to be marked out to be a 335i killer although of course its pricing may not quite match that of the 335i. What are the tuning opportunities here ... 420nm sounds a bit underpowered which could mean that a mild boost could be possible without sacrificing reliability?

0-100 sounds fair at 5.4 with S-tronic making it close to five flat. What do you guys reckon it will do at 0-200 ... <20s?


Thrives

The manual will post 20s dead and the S/Tronic 18.9s. Reason for the big gap is 7 ratios instead of the 6 in the manual.

[PetrolDave]

S/Tronic will shave some tenths off it's acceleration and sportsdiff will make a marked difference to it's handling. These two things on their own could make the S5 every bit as good a car as the old RS4 is.
It's been rumoured this week that the sportsdiff (electronic torque vectoring) development program has been sent back to the drawing board...

For me the RS4 engine will always make it shine above the B6/B7 S4 and S5 engine.

I've owned 2 V8 S4s and the RS4 engine is just in a different league. The S4/S5 engine is suited to a cruiser and doesn't have the love of revs that the RS4 engine has - in my S4s I rarely hit the 6850rpm rev limiter but in my RS4 I'm regularly hitting the 8250rpm rev limiter, the engine just throws itself at the limiter and it gets stronger as the revs increase instead of tailing off above 6000 like the "normal" V8 does.

[tvrfan]

It's been rumoured this week that the sportsdiff (electronic torque vectoring) development program has been sent back to the drawing board...

For me the RS4 engine will always make it shine above the B6/B7 S4 and S5 engine.

I've owned 2 V8 S4s and the RS4 engine is just in a different league. The S4/S5 engine is suited to a cruiser and doesn't have the love of revs that the RS4 engine has - in my S4s I rarely hit the 6850rpm rev limiter but in my RS4 I'm regularly hitting the 8250rpm rev limiter, the engine just throws itself at the limiter and it gets stronger as the revs increase instead of tailing off above 6000 like the "normal" V8 does.

what do you mean with that, that the new S4 or S5 arent getting the sportdiff. TQ??? :confused:

[KresoF1]

@KresoF1...

Are you really sure about this figures? Because after the presentation of the engine in Vienna, Austria...there was the info, that this engine in the A6 will have 290HP and 420Nm ...

So i think that the Engine would have a little bit more Torque in the S4 - don't you think so?

Did you saw AMS article or Audi Internal PDF about that engine?

This is KOMPRESSOR engine which is much, much harder for aftermarket tuning then Turbo engines...

Regarding torque values-according to this PDF they will be the same for both versions, difference is in power output only... BUT, we will see.

Also, there is absolutely NO point at all to offer bigger numbers(be it only a torque figure) for S4 then for S5...;)

[steve]

very disappointed with the Kompressor :(

output figures aren't that amazing either.

[Cargo8]

5.4 is seemingly disappointing since it is the official time is worse than b7 S4 manual official time...

[artur777]

Audi is going by the way of lowering the size and emissions and sacrifice some power and acceleration...

I hope that RS4 will be V8TT or V8 high-revv with more than 450hp

[Mr. J]

No turbo for the new s4?? Dissapointing if u ask me! Audi have made such good turbo engines in the past! I love the 2,7tt in my s4 and its tuning abilities... Why suddenly kompressor?

[AndyBG]

And, S4 will be available to buy..., when?

[artur777]

Autumn 08

[chewym]

Autocar reporting some weird (wrong) numbers.

286 hp @ 4,850 RPM
310 lb-ft @ 2,500. 286 hp @ 4,850 RPM also translates to 310 lb-ft of torque @ 4,850


http://www.autocar.co.uk/News/NewsArticle/Audi-A6/232665/

[The Pretender]

A Roots Kompressor. ? :vhmmm:

What happen to the Twin Screw Four-Lobe (Twin Vortices Series) TVS Eaton Kompressor.
This sound not good at all.

Jarod.

[chewym]

I would prefer Audi give it 350 hp. Not that there is a giant difference between 333 and 350, but what's the point of taking a step back from the previous S4?

In the American market, Auidi faces competition that is priced very cheaply (big discounts from AMG/M) in the form of C63 and M3. The S4 is a little too close price wise to those two.

[KresoF1]

A Roots Kompressor. ? :vhmmm:

What happen to the Twin Screw Four-Lobe (Twin Vortices Series) TVS Eaton Kompressor.
This sound not good at all.

Jarod.

According to PDF it says(confusing I know) Roots twin rotors Kompressor by Eaton.

[The Pretender]

According to PDF it says(confusing I know) Roots twin rotors Kompressor by Eaton.
Ok, but Roots twin rotors Kompressor sound very dated.
It give the impression that they will use a old style Kompressor.
Further, is there any indication in the PDF that it will have Valve-Lift. ?

Jarod.

[PetrolDave]

what do you mean with that, that the new S4 or S5 arent getting the sportdiff. TQ??? :confused:
Yes. What else would


the sportsdiff (electronic torque vectoring) development program has been sent back to the drawing board

mean?

[KresoF1]

Ok, but Roots twin rotors Kompressor sound very dated.
It give the impression that they will use a old style Kompressor.
Further, is there any indication in the PDF that it will have Valve-Lift. ?

Jarod.

No, there is nor word about Valve-lift. Max revs are at about 7400rpm...

[Rage]

No, there is nor word about Valve-lift. Max revs are at about 7400rpm...

Any idea about RS5 engine?

[tvrfan]

its the twin screw (rotor) four loube compressor. the new one from TVS Eaton. i think it will have Valve-lift, its been said in every magazin.

[KresoF1]

Any idea about RS5 engine?

Definitely an V8. High reving or TT? God Knows...

There is an interesting rumor about S5 for MY2010... According to this rumor Audi will put S4 V6 in it... So, only RS4 and RS5 models will have V8...

[RXBG]

audi needs to give this engine about 350 hp, plop it in the S4 and S5 and be done with it. giving the S4 and S5 different engines means giving the RS4 and RS5 different engines and that is too expensive, stupid, and complex for such dimensionally and market-wise similar cars. it would also give a 480-500 hp RS model plenty of breathing space. in fact, the S4/S5 motor should be making about 370 hp so that there is not such a large gap between the S and RS lines. i don;t think the next RS motor should make less than 450 hp, unless the cars lose major weight with CF or aluminium.

[The Pretender]

No, there is nor word about Valve-lift. Max revs are at about 7400rpm...

i believe Valve-lift can handle 7800 rpm.

jarod.

[The RS6]

i believe Valve-lift can handle 7800 rpm.

jarod.

I think Kreso meant the engines' max RPM was 7400...

[RXBG]

has anyone postulated that the A6 version may only have the SC and the S4 may be twincharged? that would be exciting and an efficient way to go for audi assembly-wise.

what a cosy discussion we are having here.

[The Pretender]

No Twincharged, i can assure you that.
Twincharge is for inline engine's, not V engines.

Jarod.

[chewym]

someone quotes/claims

350 hp: 6,250-6,900 RPM
325 lb-ft/440 nm: 2,400-6,250

This would be very nice, exactly what the S4 needs.

[Leadfoot]

audi needs to give this engine about 350 hp, plop it in the S4 and S5 and be done with it. giving the S4 and S5 different engines means giving the RS4 and RS5 different engines and that is too expensive, stupid, and complex for such dimensionally and market-wise similar cars. it would also give a 480-500 hp RS model plenty of breathing space. in fact, the S4/S5 motor should be making about 370 hp so that there is not such a large gap between the S and RS lines. i don;t think the next RS motor should make less than 450 hp, unless the cars lose major weight with CF or aluminium.

Very valid points, the current gap between S and RS models are quite large, though there is quite a large in price between the models as well.

You can't have one without the other. :looking:

[RXBG]

someone quotes/claims

350 hp: 6,250-6,900 RPM
325 lb-ft/440 nm: 2,400-6,250

This would be very nice, exactly what the S4 needs.


lets hope you right. that WOULD be ideal. a bit more power than the outgoing car.

question is. what does audi do to make the same engine produce 290 and 330-350 hp? can't wait to find out.

[chewym]

lets hope you right. that WOULD be ideal. a bit more power than the outgoing car.

question is. what does audi do to make the same engine produce 290 and 330-350 hp? can't wait to find out.

290 hp is supposedly achieved @ 4,850 RPM and 350 @ 6,250. So Audi does something to the A6 version so it doesn't gain any extra horsepower past 4,850 RPM. Or maybe they do nothing.

[PetrolDave]

So Audi does something to the A6 version so it doesn't gain any extra horsepower past 4,850 RPM. Or maybe they do nothing.
Either just change the fuel and timing map - easy software change - or set a low rev limit - also an easy software change.

[RXBG]

if it is just about a software thing then that is pure silliness. i'll pimp my wife's A6!

i think there might be more to it. maybe intake and exhaust. i don't see the new base US bound A6 model having a dual exhaust. and in all likelihood, this engine is bound to replace the base A6 engine here, as well us the 3.2 upper level engine in the A4.

[PetrolDave]

i think there might be more to it. maybe intake and exhaust.
It's possible that they will fit the S4 version with a variable intake system - short intakes to give good torque low down, but longer intakes to give better power at higher revs.

[011]

Personaly I think that it's mistake in this news with mechanical compressor. First news that came from AM&S stated "compressor" but not what kind(turbo or mechanical). If Audi pursue fuel economy than turbo should definitely be choice #1, it's also more efficient than SC - even twin screw. But if they really opted for SC than Eaton is logic only from economy (cheaper than Opcon brands or others such as Whipple) point of view and maybe reliability. In any case 6th generation of Eaton's SC is still Roots, more efficient but it is not compressing air like Twin Screws, just pumping ("blowing") it.
To get good low end torque they need long runners, short ones are for HP on top of rev range.

[Tanner]

Found this on fourtitude.... note that this is for the A6 as it's only 290hp.

http://img.photobucket.com/albums/v422/scuk/Other/DSC_0232.jpg

http://img.photobucket.com/albums/v422/scuk/Other/DSC_0233.jpg