|
|
02-07-2008, 02:26 AM | #1 |
Lieutenant
46
Rep 528
Posts |
MB following firmly in BMW's footsteps
Glad to see that the competition is making good use of BMW's inventions. Last week when the facelifted SLK came out MB announced thats its going to feature and optional direct steer system similar to the active steering pioneered by BMW. This week when the facelifted SL63 AMG was announced MB confirmed that its going to ditch the torque converter auto for this model in favour of a SMG type system called MCT. Its going to feature a single robotised clutch.
|
02-07-2008, 07:23 PM | #2 |
Lieutenant General
611
Rep 10,407
Posts |
^ automated manual ala SMG with a single clutch was offered on the E36 M3 how long ago??? MB - time to get with the times and offer a dual clutch.
|
Appreciate
0
|
02-08-2008, 05:08 AM | #3 |
Lieutenant
46
Rep 528
Posts |
The MCT offers 100 ms shifts in best mode. Wasnt the SMG faster (80ms if memory serves me right). Eventhough its no dual clutch its going to make the Sl63 mighty quick. No torque converter power sapper + the MB performance package should make for an entertaining drive. I fear, however, that when specced properly its going to be north of 150 000 Euro.
|
Appreciate
0
|
02-08-2008, 03:55 PM | #4 | |
Lieutenant General
611
Rep 10,407
Posts |
Quote:
BMW claimed 65 ms shift times for SMG III, again reality through testing showed about 150 ms. BMW claims shifts in "milliseconds" for M-DCT. To me that press release means <10 ms. I think in reality we will see shift times < 50 ms for sure, maybe 30 ms. |
|
Appreciate
0
|
02-08-2008, 04:16 PM | #5 |
Captain
20
Rep 658
Posts |
"The engine is coupled to a newly developed seven-speed multi-clutch transmission exclusive to the SL63 that Mercedes says combines the convenience of an automatic with the direct connection of a manual gearbox and "the lightning-quick automatic gear shifts of a Formula 1 race car." The tranny features a start-up wet clutch that replaces a conventional torque converter and features four shift modes and a double-clutching function."
http://www.autoweek.com/apps/pbcs.dl...8/newsletter01 |
Appreciate
0
|
02-08-2008, 05:51 PM | #6 |
Moderator
7517
Rep 19,368
Posts |
I was wondering when I'd see a thread on MCT around here. Googling it turns up a little more info, but I still want to know more about modes and times. I suspect that the '09 or '10 C63 will get this tranny.
|
Appreciate
0
|
02-08-2008, 08:06 PM | #7 | |
Lieutenant General
611
Rep 10,407
Posts |
Quote:
|
|
Appreciate
0
|
02-08-2008, 08:15 PM | #8 | |
Major General
374
Rep 8,033
Posts |
Quote:
|
|
Appreciate
0
|
03-07-2008, 01:44 AM | #10 |
Lieutenant
46
Rep 528
Posts |
|
Appreciate
0
|
03-07-2008, 02:47 AM | #11 |
Major General
602
Rep 5,448
Posts |
last MB i drove was like piloting and med. size boat.
__________________
Fore Sale Rare 6 speed manual X3 3.oi silver over grey. PM me
|
Appreciate
0
|
03-11-2008, 02:44 PM | #12 | |
First Lieutenant
26
Rep 359
Posts |
It is an auto... albeit an updated one.
Quote:
|
|
Appreciate
0
|
03-11-2008, 04:08 PM | #13 |
Moderator
7517
Rep 19,368
Posts |
Thanks for that dechoong. Informative.
I still don't have a clear picture of how thing thing works. When I think of clutch in a transmission, I am thinking of something that needs actuation to engage or disengage. Is this a centrifugal clutch, like on a go-cart? Is it like a torsion differential? Is it something else? I know its a wet clutch but that does not explain how it operates exactly. |
Appreciate
0
|
03-25-2008, 04:10 PM | #14 |
Captain
76
Rep 956
Posts |
It actually started with the E46. I believe it was 04 right? But even though BMW states 80ms shift times, I sometimes think that is the time it takes to just change the gears, not including disengaging and engaging the clutch. I might be wrong, but it just never seems anywhere near what they state the times as being.
|
Appreciate
0
|
03-25-2008, 09:08 PM | #15 |
Moderator
7517
Rep 19,368
Posts |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|