engine difference between S6, S8, and Bentley?
09-16-2012, 02:43 PM
#1
AudiWorld Member
Thread Starter
engine difference between S6, S8, and Bentley?
They are all 4-liter V-8 twin-turbocharger engines, but with quite different horsepower ratings.
Are they mechanically different, or has the S6 engine been de-tuned at the computer?
If the latter, does that imply that tuners like Stasis will be able to eliminate the de-tuning and get the same output the S8 and Bentley have?
Are they mechanically different, or has the S6 engine been de-tuned at the computer?
If the latter, does that imply that tuners like Stasis will be able to eliminate the de-tuning and get the same output the S8 and Bentley have?
09-16-2012, 06:39 PM
#2
AudiWorld Senior Member
What may stop me from getting an s6 is that there are major concerns the dsg in the s6 can handle any additional power. Chipping it may not be possible. I believe that is why the s8 has an 8 speed non-dsg tranny... Due to the additional power.
If that's the case, a chipped 3.0t can come close to hanging with the s6 which may not be chippable. assuming the tuners ever figure out how to chip a 2012+ car.
If that's the case, a chipped 3.0t can come close to hanging with the s6 which may not be chippable. assuming the tuners ever figure out how to chip a 2012+ car.
09-16-2012, 06:43 PM
#3
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I would be amazed if any car manufacturer, let alone Audi, would install a major drivetrain component with no performance margin.
09-16-2012, 11:11 PM
#4
09-17-2012, 01:58 AM
#5
AudiWorld Senior Member
They are all 4-liter V-8 twin-turbocharger engines, but with quite different horsepower ratings.
Are they mechanically different, or has the S6 engine been de-tuned at the computer?
If the latter, does that imply that tuners like Stasis will be able to eliminate the de-tuning and get the same output the S8 and Bentley have?
Are they mechanically different, or has the S6 engine been de-tuned at the computer?
If the latter, does that imply that tuners like Stasis will be able to eliminate the de-tuning and get the same output the S8 and Bentley have?
Last edited by John Simcox; 09-17-2012 at 02:02 AM.
09-17-2012, 03:36 AM
#6
I didn't realise it wasn't the standard 8 speed auto transmission.
I'd imagine key areas are upgraded for the higher spec models, bearings, gearbox, cooling etc etc.
The S6 has already been remapped here in europe to ~510PS/540 (B&B/Abt). I'm sure MTM will do something similar, but these guys will always cost a bit more because they are the trailblazers.
I'd imagine key areas are upgraded for the higher spec models, bearings, gearbox, cooling etc etc.
The S6 has already been remapped here in europe to ~510PS/540 (B&B/Abt). I'm sure MTM will do something similar, but these guys will always cost a bit more because they are the trailblazers.
09-17-2012, 03:49 AM
#7
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I never believe in ABT claims, and this is from my experience. Heck, the stock S7 power curve shown in their website is not even correct.
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09-17-2012, 05:18 AM
#8
AudiWorld Senior Member
That is complete speculation, albeit by enthusiasts. As far as I can tell, no one has the specs on the specific DSG in the S6, so no one should really be able to make such an assertion.
I would be amazed if any car manufacturer, let alone Audi, would install a major drivetrain component with no performance margin.
I would be amazed if any car manufacturer, let alone Audi, would install a major drivetrain component with no performance margin.
I believe a chipped 3.0t will do 0-60 in 4.3-4.5. Thats close enough to the stock s6 that if it never becomes possible to chip the s6, there is not enough difference for me to make the leap.... That's from a purely performance angle. The dsg is a very cool tranny and there are some other really nice features to consider.
09-17-2012, 07:02 AM
#9
AudiWorld Super User
In a mass production environment products must be designed with margin to minimize failures. Audi often seems to be extra conservative when it comes to turbos, transmissions, and engine blocks. If you push the design beyond what Audi has specified, you will likely shorten the life of the product/component, but I'd argue that Audi expects their products to last a long time.
The adage "You gotta pay to play" certainly applies. If you want to make more power, do expect to have to replace/maintain certain things more often
.
The adage "You gotta pay to play" certainly applies. If you want to make more power, do expect to have to replace/maintain certain things more often
.
09-17-2012, 08:27 AM
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First of all, speculating is fun :-). But in all seriousness, why would Audi put the 8-speed in the s8 if the dsg could handle the power... I don't have any data to back it up, and I think it's clear we are speculating at this point. We won't know for several months.
I believe a chipped 3.0t will do 0-60 in 4.3-4.5. Thats close enough to the stock s6 that if it never becomes possible to chip the s6, there is not enough difference for me to make the leap.... That's from a purely performance angle. The dsg is a very cool tranny and there are some other really nice features to consider.
I believe a chipped 3.0t will do 0-60 in 4.3-4.5. Thats close enough to the stock s6 that if it never becomes possible to chip the s6, there is not enough difference for me to make the leap.... That's from a purely performance angle. The dsg is a very cool tranny and there are some other really nice features to consider.