Autobild: RS6-trio and Option Auto: RS6 MTM

[KK265]

Does anybody know how much lighter is the saloon version of RS6 (vs avant)?

[The RS6]

Does anybody know how much lighter is the saloon version of RS6 (vs avant)?

According to this: http://www.rs6.com/forum/showthread....038#post139038 the difference is about 70kg!

[mdk]

According to the thread and audi's site difference is 40Kg.

Back to the topic, I still believe that there is some problem (typo?) with the figures in the magazine.

[Michaël Barbé]

I still believe that there is some problem (typo?) with the figures in the magazine.

What do you mean mdk?

MB

[mdk]

What do you mean mdk?

Please see the table, as presented by the magazine, and look at the figures I've added.




You will notice that although MTM has been substantially faster from 0 to 250 Km/h (a whole 1 second faster!) it takes 4.4 seconds more than the ABT to do from 250Km/h to 300Km/h :eye:

I can find no logical explanation for such difference in performance hence I guess these 38.8s on MTM column it's a typing error.

Michalis

[KK265]

Please see the table, as presented by the magazine, and look at the figures I've added.




You will notice that although MTM has been substantially faster from 0 to 250 Km/h (a whole 1 second faster!) it takes 4.4 seconds more than the ABT to do from 250Km/h to 300Km/h :eye:

I can find no logical explanation for such difference in performance hence I guess these 38.8s on MTM column it's a typing error.

Michalis

The problem is more complicated if you see 200-300 km/h times between MTM and ABT.

[Kram]

I don't know this case, but I saw something similar with turbochargers cars using different tuner maps. (Audi RS4 v6tt)
Because of difference in ignition and boost maps, on high speed runs, some cars tends to build too much heat from overboost on the first phase of acceleration and the ECU pulls back ignition advance.

It could be the same here.

[Michaël Barbé]

Please see the table, as presented by the magazine, and look at the figures I've added.




You will notice that although MTM has been substantially faster from 0 to 250 Km/h (a whole 1 second faster!) it takes 4.4 seconds more than the ABT to do from 250Km/h to 300Km/h :eye:

I can find no logical explanation for such difference in performance hence I guess these 38.8s on MTM column it's a typing error.

Michalis

You're right! I wished Mr Balsen could give us an explanation right away!

MB

[KK265]

I doubt about these(autobild) times 0-300km/h.According to this figures RS6 avant ABT is quicker between 200-300 km/h than a porsche 997 GT3 for example.See next videos times between 280 km/h and 300 km/h on speedo:

http://www.youtube.com/watch?v=VKFo8eVu5yw
http://www.youtube.com/watch?v=IjNNlNwVfUA
Gt3 needs 9 secs and rs6 ABT v 10 needs 14 secs....
997 GT2 needs 6 secs :
http://www.youtube.com/watch?v=VFPPpgXc3ow
also 997 turbo stock is quicker:
http://www.youtube.com/watch?v=-MrnvG1Zy2Q
All of us know 0-200 km/h times for these cars.

0-300 km/h

Abt 35,4 secs
Sportec 36,3
MTM 38,8


Compare with 0-300 km/h:

Porsche Carrera GT (AMS) 34,2 s
Mercedes SLR (Auto Bild) 34,8 s
Mercedes SLR (AMS) 36,9 s
Porsche 997 Turbo (AMS) 40,7 s
Corvette Z06 (AMS) 41,8 s
Aston Martin Vanquish S (AMS) 57,1 s

[audi_ch]

I doubt about these(autobild) times 0-300km/h.According to this figures RS6 avant ABT is quicker between 200-300 km/h than a porsche 997 GT3 for example.See next videos times between 280 km/h and 300 km/h on speedo:

http://www.youtube.com/watch?v=VKFo8eVu5yw
http://www.youtube.com/watch?v=IjNNlNwVfUA
Gt3 needs 9 secs and rs6 ABT v 10 needs 14 secs....
997 GT2 needs 6 secs :
http://www.youtube.com/watch?v=VFPPpgXc3ow
also 997 turbo stock is quicker:
http://www.youtube.com/watch?v=-MrnvG1Zy2Q
All of us know 0-200 km/h times for these cars.

0-300 km/h

Abt 35,4 secs
Sportec 36,3
MTM 38,8


Compare with 0-300 km/h:

Porsche Carrera GT (AMS) 34,2 s
Mercedes SLR (Auto Bild) 34,8 s
Mercedes SLR (AMS) 36,9 s
Porsche 997 Turbo (AMS) 40,7 s
Corvette Z06 (AMS) 41,8 s
Aston Martin Vanquish S (AMS) 57,1 s

thanks for that posting
i clearly agree with you.
the times 0-200 sems to me logical and wright, but the rs6 wouldnt be quicker than a carrera gt, slr or gt2.

specially all those cars are clearly faster up to 200 kmh, say around 10 secs, and there is know way that a care with a mutch bader horsepower/wight ratio (rs6) will make sutch a faster time from 200-300 then the cars mentiond above.gt, gt2 or slr

dont forget, it is sportcars, and this magasins belong to autobild, the tested once an sl 55 amg in about 12 secs for 0-200, later tests showed the same car in about 15 sec...

[MTMBerlin]

You're right! I wished Mr Balsen could give us an explanation right away!

MB

Generally it is not a perfect test at all - all cars should have been tested with stock 20" wheels. Now assuming that it is no printing mistake (although 34.8s or 35.8s would make more sense at all):

My guess is, that the difference from 250-300 km/h is affected by the wheels and the software probably.
ABT uses 9x20" with 275/35/20 and MTM 10.5x21" on 285/30/21 - thats definetely more rotating mass. Even the Sportec RS6 is faster than the MTM RS6 by 2.5s and only 0.9s slower than the Abt (from 0-300km/h). Please remember - the Sportec RS6 has 10x22" on 265/30/22 and only 650bhp / 760Nm. (Maybe their power figures are lower than real)

The Sportec RS6 is equal with the MTM from 0-200km/h (13.0s) whereas the ABT loses 0.9s. Personally I don't think there is something wrong with MTM's software but it may be possible there is a lack of performance between 250-310. The heavier wheels make more sense to me because from 250km/h onwards that plays a bigger role than below that speed.

For the math cracks it is of course possible to calculate the moment of inertia.

http://en.wikipedia.org/wiki/Moment_of_inertia

[mdk]

@MTMBerlin
Thanks for the input!

The figures we have from 250-300 km/h are:
ABT 14,1s, Sportec 15,5s and MTM 18,5s

So MTM is slower by 3s from the Sportec which carries the largest wheel size of the three hence I don't think it's a wheel inertia issue.

Maybe it's only software. But still the difference of 4s in 14s is huge.
Maybe MTM head offices could give you some opinion.

Michalis

[MTMBerlin]

@MTMBerlin
Thanks for the input!

The figures we have from 250-300 km/h are:
ABT 14,1s, Sportec 15,5s and MTM 18,5s

So MTM is slower by 3s from the Sportec which carries the largest wheel size of the three hence I don't think it's a wheel inertia issue.

Maybe it's only software. But still the difference of 4s in 14s is huge.
Maybe MTM head offices could give you some opinion.

Michalis

I'll try to get more information during the week from MTM. Also think of the tires... The difference from 10,5x21" to 10x22" is not that big (1 inch bigger, 1/2 inch less wide). That in mind combined with the tire sizes of only 265/30 Sportec to 285/30 MTM makes me think that the Sportec RS6 is nearly as powerful as the MTM / ABT RS6.

Does anyone have any weight information ? Would be interesting to know which wheel is heavier (I think the Sportec wheels are lighter - although being bigger)

[audi_ch]

I'll try to get more information during the week from MTM. Also think of the tires... The difference from 10,5x21" to 10x22" is not that big (1 inch bigger, 1/2 inch less wide). That in mind combined with the tire sizes of only 265/30 Sportec to 285/30 MTM makes me think that the Sportec RS6 is nearly as powerful as the MTM / ABT RS6.

Does anyone have any weight information ? Would be interesting to know which wheel is heavier (I think the Sportec wheels are lighter - although being bigger)

Sportec is known for his good quality and underrated hp figures, in Switzerland.

As well the whels from sportec are not as heavy as the 21 rims of mtm, so that could be a factor pro Sportec