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      05-25-2007, 08:27 PM   #1
ruff
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VW debuts new 7 speed DSG

It appears this new DSG is a step backwards from the current DSG except for the increase from 6 speed to 7 speed. It is built to accomodate even smaller displacement engines rather than larger high reving motors. It is now a dry clutch rather than a wet clutch. This would appear to make it even more vulnerable to burning clutches. It makes me wonder if Porsche is struggling to develop a DSG for it's high reving motors. It sounds like the M division may be ahead of the competition with their upcoming DCT. I can't wait to see how it performs.


http://www.autoblog.com/2007/05/25/v...t-end-of-year/
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      05-25-2007, 11:24 PM   #2
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Quote:
Originally Posted by ruff View Post
It appears this new DSG is a step backwards from the current DSG except for the increase from 6 speed to 7 speed. It is built to accomodate even smaller displacement engines rather than larger high reving motors. It is now a dry clutch rather than a wet clutch. This would appear to make it even more vulnerable to burning clutches. It makes me wonder if Porsche is struggling to develop a DSG for it's high reving motors. It sounds like the M division may be ahead of the competition with their upcoming DCT. I can't wait to see how it performs.
Dry clutches are preferred for efficiency. The Getrag 7-speed DCT uses wet clutches, and I have been guessing this is the E92's, but some say it will be ZF.



http://www.getrag.de/455
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      05-26-2007, 08:56 AM   #3
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Quote:
Originally Posted by GregW / Oregon View Post
Dry clutches are preferred for efficiency. The Getrag 7-speed DCT uses wet clutches, and I have been guessing this is the E92's, but some say it will be ZF.



http://www.getrag.de/455
Both ZF and Getrag are to supply BMW with such gearboxes

Which one will make the M ones and which the non-M ones isnt known publicly yet
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      05-26-2007, 04:02 PM   #4
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I heard from a friend that works with the research team in munich that the they are looking at over 5 different Duel Clutch Trannys. He said he believes the M future DCT will be from the same company that makes the Transmissions for BMW Sauber F1.
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