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04-13-2007, 03:43 PM | #2 |
the name says it all...
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They'll put something better than the SMG in March 2008...
patience...
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04-13-2007, 04:11 PM | #4 | |
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Quote:
search for DSG, ZSG, or DCT.... all names which have been used to refer to bmw's new dual clutch transmission available for the new m3
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04-13-2007, 04:17 PM | #5 |
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Read this thread
http://www.e90post.com/forums/showthread.php?t=55395 It's all in the name of progress, but I will reserve judgement until I have tested it for myself. |
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04-13-2007, 04:23 PM | #6 | |
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DCT, DSG
Quote:
http://cars.about.com/od/thingsyoune...owDSGworks.htm. BMW's is sure to be similar--rumored to be a 7-speed made by Borg Warner.
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04-13-2007, 04:25 PM | #7 |
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04-13-2007, 05:46 PM | #10 |
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Its strange that you say Getrag because it seems to me that all the information I have about the 7-speed DCT is from ZF Sachs. See a few threads down and there is a thread with a link to a description and animation. Dual wet clutches is very cool!
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04-13-2007, 09:56 PM | #12 | |
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Getrag DCT
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KEY BENEFITS - Optimized efficiency - Shifting without interruption of traction - Excellent comfort - Very quick and sportive shiftings possible Max. Torque Capacity 600 Nm Weight (dry) 79 kg Installation length 660 mm Synchronization 1st, 2nd and 3th gear dual cone 4th and 5th gear single cone 6th, and 7th gear dual cone Reverse gear single cone Gear Spread Ratio 6,8 Max. Gross Vehicle Mass/Gross Trailer Mass 2500 kg/4500 kg Shifter System hydraulic Miscellaneous DCT dual clutch transmission http://www.getrag.de Click on Transmissions/Dual Clutch Transmissions, then from the popdowns on the right DCT/Inline/Over 400 NM Torque
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Greg Lake Oswego, Oregon, USA 2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 Last edited by GregW / Oregon; 04-13-2007 at 10:13 PM.. |
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04-14-2007, 05:51 AM | #14 | |
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Quote:
Gertag are ahead of ZF in this DCT technology race and that's who BMW have chosen for the new M3, so ZF are now playing catchup but will not have a competitive transmission available I believe until 2009. These new DCT transmissions can handle considerably more torque than the early Borg Warner designed systems as fitted to VW/Audi, so I am expecting Gertag's DCT system to be far better than those we have previously experienced on the Golf GTi. Should be interesting to find out. Here are a few more articles describing why SMG is being replaced with DCT http://www.zeroshift.com/pdf/EAC906%2013.pdf http://newsletter.csmauto.com/4thQtr2005/?a=2 |
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