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Discussion in 'A3/S3/Sportback (8P Chassis)' started by SMOKINSKINS, Oct 12, 2009.
COULD ANYBODY TELL ME THE DIFFERENCE BETWEEN DSG AND S TROINC? CHEERS
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Twin-clutch pioneer Audi is now the proud manufacturer of a new 7-speed twin-clutch gearbox called S Tronic. Joining Audis other offerings like 6-speed DSG, Multitronic, manual, Tiptronic and R Tronic, S Tronic is another step forward in the pursuit of high performance, lower fuel consumption and satisfying driving experiences.
The S Tronic is capable of attending to up to 550Nm of brute torque, and handling engine speeds of up to 9,000rpm. This probably explains why the [Nm RS 6] uses a normal 6-speed Tiptronic transmission.
S Tronic is a twin-clutch transmission system that, you guessed it, uses two clutches to engage and change gears. The gist of it is that while other systems only engage the next appropriate gear when the control unit decides speed, revs and throttle are optimal for that action, twin-clutch systems work a little faster. These engage the next gear as soon as the current gear is engaged, thus in essence lie in wait for the action to be approved so as to quickly slip into engaged selected gear. Simple.
S Tronic can also be driven in various modes, such as D (Drive) and S (Sport). In normal D mode drive changes are auctioned by the computer, while S allows for quicker shifts that can even be done via optional rockers behind the steering wheel.
.. and if you cba to read all that...
The S-tronic and DSG are the same thing as far as VW/Audi goes and it is simply known as S-tronic. It's a twin clutch, sequential auto/manual. Supposedly can change gears in .02 seconds. And thought to be the second most advanced gearbox, behind only Ferrari.
Well done lad.
Yeah S-tronic is just a name change on the Audi side of the VAG stable, Its still the same DSG box fitted to the VAG range.
Some 09 models come with a revised 7 speed version including the new Ibiza Cupra but the tech is still the same
Basically the replies given so far are correct, but I would add a couple of points.
Firstly Audi was not the twin-clutch pioneer. The DSG gearbox was originally developed by VW engineers in conjunction with Borg-Warner for use in it's transverse engined models. Audi also decided to use the same gearbox in it's transverse engine model - the A3 and the TT. It also changed the name to s-tonic in it's models. All the DSG/s-tronic gearboxes are manufactured in a new VW plant at Kessel for use in all VAG models.
Audi have now done some further development on the s-tronic to produce a version for use in it's front to back mounted engines and it gradually being introduced into various models. Current on some version of the A4 and A5 can be ordered with it.
Also the newer 7-speed version differs from the original 6-speed version in the type of clutches used. The 7-speed uses dry-plate clutches where as the 6-speed uses wet clutches which are always covered special oil.