New Borgwarner 7-speed DSG w/ Dry clutch
12-21-07, 01:25 PM
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New Borgwarner 7-speed DSG w/ Dry clutch
Volkswagen's dual-clutch gearbox (DSG) has proven that a balance can be struck between driver involvement and running the daily slog without a cramped left leg, with a bump in fuel economy to boot. As reported earlier this year, VW has plans to introduce another cog onto its six-speed DSG unit, while at the same time dropping the wet clutch arrangement for a dry-clutch setup. Now it's official: the new seven-speed DSG not only boasts another gear and dry clutches, but it's the first time the DSG transmission is able to be mounted for a front-traverse setup.
12-21-07, 02:32 PM
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DSG is like a smart manual transmission
it has 2 clutches that predicts what gear you will be going to next and have the 2nd clutch ready to engage on that gear
makes for a very very fast and easy shifting in the world of manual transmissions
it has 2 clutches that predicts what gear you will be going to next and have the 2nd clutch ready to engage on that gear
makes for a very very fast and easy shifting in the world of manual transmissions
12-21-07, 03:35 PM
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A DSG is like two manual transmissions in one. It consists of two clutches, one that engages gear 1, 3, and 5 (+7 in this case) and the other engages gears 2, 4, and 6.
For example, picture yourself shifting from 1st to 2nd. In a traditional manual the clutch is disengaged, the gear selected, then the clutch is re-engaged. In a DSG transmission clutch 1 is engaged to gear 1 and clutch 2 is hovering over gear 2. During the shift, clutch 1 disengages as clutch two engages simultaneously. The original borgwarner DSG used fluid similar to automatic transmissions to engage the clutch(s), however this new 7 speed DSG is said to use a dry clutch just like a bonafide race car
12-21-07, 03:41 PM
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12-21-07, 08:54 PM
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12-22-07, 09:04 AM
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amen to that!
and for those of us who didn't major in ME, this video helped me understand DSG (jk)
http://www.youtube.com/watch?v=SJL15n5P9BU
and for those of us who didn't major in ME, this video helped me understand DSG (jk)
http://www.youtube.com/watch?v=SJL15n5P9BU
Last edited by kit cat; 12-22-07 at 09:09 AM.
12-22-07, 12:30 PM
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12-22-07, 12:51 PM
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damn, just saw that. DSG GTi is almost .5 sec faster in the 1/4 than the 6 spd even with a 200 lb weight disadvantage. jesus christ, now I want to wait for the auto S5. it'll probably do 0-60 in 4.5 sec and 1/4 mi in 13 sec. almost as fast as the big guns (M3, RS4, IS-F). omg I can't imagine the RS5 with the DSG, if it does have it. I wonder why Audi didn't put the DSG option for the RS4 which would have made the car much faster than the M3 and IS-F.
12-22-07, 01:17 PM
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amen to that!
and for those of us who didn't major in ME, this video helped me understand DSG (jk)
http://www.youtube.com/watch?v=SJL15n5P9BU
and for those of us who didn't major in ME, this video helped me understand DSG (jk)
http://www.youtube.com/watch?v=SJL15n5P9BU
btw whats the difference btwn dry and wet clutches?
12-22-07, 01:39 PM
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I believe DSG hasn't been proven on very high horsepower engines, but since Porsche and BMW are going to use it too it will soon be proven!
12-22-07, 02:50 PM
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But rumors still have this being a tiptronic and not a DSG. 
That won't be anywhere near as nice.
It has been proven in the Veyron but that is a "special" application. They have not yet been made available in mass market high HP applications though.
That won't be anywhere near as nice.It has been proven in the Veyron but that is a "special" application. They have not yet been made available in mass market high HP applications though.
12-22-07, 04:36 PM
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Maybe not yet, but very close. The new Nissan GT-R uses the same Borgwarner 6 speed dual-clutch transmission in a transaxle with its ~480HP. That counts as high horsepower + great weight distribution to me.
12-22-07, 04:52 PM
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M6nightrid
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12-01-16 11:36 AM
7speed, borg, borgwarner, borgwarnerdsg, club, culuch, dry, dsg, hydraulics, lexus, spd, speed, strip, warner
