BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
European Auto Source (EAS)
Post Reply
 
Thread Tools Search this Thread
      04-13-2007, 03:40 PM   #1
_LoHaN_
New Member
1
Rep
10
Posts

Drives: BMW 325i
Join Date: Apr 2007
Location: Brazil

iTrader: (0)

Angry SMG Gearbox on M3... why not, wtf?

I'd like to know why BMW won't use SMG on new M3?!

A 6-speed gearbox seems so poor...
Appreciate 0
      04-13-2007, 03:43 PM   #2
Mr.Marvelous
the name says it all...
Mr.Marvelous's Avatar
Turkey
71
Rep
269
Posts

Drives: F30 BMW 320i Sport Line
Join Date: Oct 2006
Location: Turkey

iTrader: (0)

They'll put something better than the SMG in March 2008...

patience...
__________________
Join Driven: The Ultimate Car App http://www.getdrivenapp.com/
Appreciate 0
      04-13-2007, 03:45 PM   #3
_LoHaN_
New Member
1
Rep
10
Posts

Drives: BMW 325i
Join Date: Apr 2007
Location: Brazil

iTrader: (0)

And what can it be?

Do you know something?

Where can I read about it?
Appreciate 0
      04-13-2007, 04:11 PM   #4
esquire
Brigadier General
esquire's Avatar
United_States
478
Rep
3,044
Posts

Drives: 2011 Dakar Yellow M3, 2018 M5
Join Date: Feb 2007
Location: Orange County, California

iTrader: (0)

Quote:
Originally Posted by _LoHaN_ View Post
And what can it be?

Do you know something?

Where can I read about it?

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
__________________

[ESS VT2-625] [Akrapovic Evolution Exhaust] [KW Clubsports] [OSS Angel Eyes] [Revinora r-CRT Lip]
[Vorsteiner Boot] [Challenge Race Diffuser] [See the Build Thread HERE]
Appreciate 0
      04-13-2007, 04:17 PM   #5
Steved
Lieutenant
Steved's Avatar
United Kingdom
50
Rep
503
Posts

Drives: M3 CSL, AMG ML63, B7 RS4 Avant
Join Date: Feb 2006
Location: England

iTrader: (0)

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.
Appreciate 0
      04-13-2007, 04:23 PM   #6
GregW / Oregon
Commander-In-Chief
2070
Rep
8,898
Posts

Drives: 2023 M2 Coupe, 2020 GLE 450
Join Date: Nov 2005
Location: Lake Oswego, OR

iTrader: (3)

Garage List
DCT, DSG

Quote:
Originally Posted by _LoHaN_ View Post
And what can it be?

Do you know something?

Where can I read about it?
Here's an explanation of Audi's DSG:
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.
__________________

Greg Lake Oswego, Oregon, USA
2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450
Appreciate 0
      04-13-2007, 04:25 PM   #7
Steved
Lieutenant
Steved's Avatar
United Kingdom
50
Rep
503
Posts

Drives: M3 CSL, AMG ML63, B7 RS4 Avant
Join Date: Feb 2006
Location: England

iTrader: (0)

Quote:
Originally Posted by GregW / Oregon View Post

BMW's is sure to be similar--rumored to be a 7-speed made by Borg Warner.
No, SMG is being replaced by Getrag's new DCT transmission (see post above.)
Appreciate 0
      04-13-2007, 04:52 PM   #8
posterchild336
Private First Class
7
Rep
106
Posts

Drives: 2008 bmw 335
Join Date: Apr 2006
Location: ft lauderdale

iTrader: (2)

go to youtube and type dsg and look at what the golfs have, it seems much better than smg
Appreciate 0
      04-13-2007, 04:53 PM   #9
ilmor
ilmor
United_States
4
Rep
46
Posts

Drives: BMW M3
Join Date: Feb 2007
Location: CT

iTrader: (0)

SMG, DSG, whatever...that's what I want. I'm not planning to buy my next M3 until the fall of '08, so perhaps it will be available by then. I hope so.
Appreciate 0
      04-13-2007, 05:46 PM   #10
epiphone3
Lieutenant Colonel
110
Rep
1,772
Posts

Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

iTrader: (0)

Quote:
Originally Posted by Steved View Post
No, SMG is being replaced by Getrag's new DCT transmission (see post above.)
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!
Appreciate 0
      04-13-2007, 07:46 PM   #11
_LoHaN_
New Member
1
Rep
10
Posts

Drives: BMW 325i
Join Date: Apr 2007
Location: Brazil

iTrader: (0)

I wanna to change my car for a new m3, but not with that Manual Transmition...

I'll wait untill this knew gearbox comes out.
Appreciate 0
      04-13-2007, 09:56 PM   #12
GregW / Oregon
Commander-In-Chief
2070
Rep
8,898
Posts

Drives: 2023 M2 Coupe, 2020 GLE 450
Join Date: Nov 2005
Location: Lake Oswego, OR

iTrader: (3)

Garage List
Getrag DCT

Quote:
Originally Posted by Steved View Post
No, SMG is being replaced by Getrag's new DCT transmission (see post above.)
Good info. I found this on the Getrag website:



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
__________________

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..
Appreciate 0
      04-13-2007, 11:40 PM   #13
E36325is
Second Lieutenant
Hong Kong
18
Rep
220
Posts

Drives: 1M coupe
Join Date: Dec 2006
Location: Hong Kong

iTrader: (0)

Awesome! Gladly waiting for mine!
Appreciate 0
      04-14-2007, 05:51 AM   #14
Steved
Lieutenant
Steved's Avatar
United Kingdom
50
Rep
503
Posts

Drives: M3 CSL, AMG ML63, B7 RS4 Avant
Join Date: Feb 2006
Location: England

iTrader: (0)

Quote:
Originally Posted by epiphone3 View Post
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!
ZF have been the main transmission partner to BMW for many years, but they banked on the AMT style transmission (i.e. SMGII and SMGIII) and the technology battle has now shifted to DCT.

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
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:29 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST