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02-03-2008, 12:31 PM | #1 |
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Choosing DCT over 6MT (meta-analysis)
Hi!!
I know this has been discussed, but I was wondering if the people that are choosing the DCT can summarize the reason of their decision. I have always been a MT person, and really get bored when I don't have a clutch, but if there are reasonable facts maybe I will have to go for the DCT. For example, the launch control feature is something I really would like to have. |
02-03-2008, 12:39 PM | #2 | |
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DCT vs. MT
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Greg Lake Oswego, Oregon, USA 2023 M2 Coupe - Brooklyn Grey/Cognac/CF, 6MT; 2020 MB GLE 450 |
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02-03-2008, 12:40 PM | #3 |
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I am a early adopter for new tech. and plus my fiancee can drive it too instead of burning out the clutch all the time.
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02-03-2008, 12:52 PM | #4 | |
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02-03-2008, 01:13 PM | #6 | |
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"...it's not about the money and not about the brand of the car, it's about handling,performance and passion......And that, no other car has all together like an M3........when you talk about the most complete car the M is invincible." --Tony Kanaan. |
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02-03-2008, 02:08 PM | #7 |
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For me personally its faster and more fuel efficient, I love the idea of shifting right there with my hands on the steering at all times, as well as some times that clutch can be a real bother i.e., bumper to bumper traffic. Plus F1 technology in a street car is totally amazing. The list goes on and on.
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02-03-2008, 02:23 PM | #8 |
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Well after 800kms, mostly through twisties I am oh so glad I went for the 6MT.
In bumper to bumper traffic the manny is an absolute joy to drive, very smooth and forgiving, apples and oranges I suppose, but compared to my Subaru, in traffic it is a beautiful box. There is so much power in this car you don't need to row through the gears all the time, there is plenty of torque at 2000rpm in the top gears without needing full pedal travel to give acceptable acceleration. Get onto the twisties, select Sport Plus Power mode and you have yourself a beautifully responsive throttle coupled with excellent placement of the pedals allowing easy, crisp and satisfying heel-toe blipping on the downshifts. I spent several hours through the twisties yesterday with a friend sitting next to me and another on a 750cc sportsbike and the sheer joy of sweeping through the corners and shifting smoothly up and down really proved to me that figures like 4.8 or 4.6 and all the graphs, shift times etc mean very little, in my world anyway. Perhaps its just me, but I do notice this car attracts attention and in traffic I quite enjoy letting other drivers scream away from the lights and abuse their clutches, rear tyres etc whilst I jost potter along. Gimme a twisty and the manny over a straight and the DCT anyday!!! Disclaimer: This is my opinion, I am not trying to tell anyone they are wrong, don't flame me!!! |
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02-03-2008, 02:30 PM | #9 | |
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Disclaimer: This is just my opinion lol
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02-03-2008, 05:53 PM | #10 | |
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02-03-2008, 06:23 PM | #11 |
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why cant BMW provide a Launch Control on the 6MT? even chevy has it on the new HHR SS model (the PT cruiser look alike)
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02-04-2008, 12:11 AM | #12 | |
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1. Performance (quicker acceleration) 2. Versatility (3 ways to drive, paddle shift, full auto, or gear shifting sequentially) 3. Ease for traffic driving 4. No clutch depression bodes well for not worsening my chronic back issue any further 5. Less shifting effort than in MT allows you to concerntrate on others things as you rapidly go through the gears and allows you to pay better attention on redline shifting etc.. 6. Launch Control |
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02-04-2008, 01:06 AM | #13 |
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Advantages of DCT(not in any particular order, except the first):
Advantages of MT:
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02-04-2008, 01:29 AM | #14 | |
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Haha - having fun? 1. for the less skilled driver 2. for the video game kids 3. for those tha must work for a living 4. for the eldrerly 5. for the those with poor concentration 6. again for the less skilled video gamers. but rally I am jealous cause BMW could provide a launch control for the 6MT. ;(
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02-04-2008, 11:37 AM | #15 | |
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02-04-2008, 11:49 AM | #16 |
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im so proud of BMW for producing such amazing technology as DCT, but i went 6MT...its just so sexy, and pure. Yeah, you DCT guys will get me by 0.2 seconds. But i'm ok with that. the point is: the M3 is simply amazing no matter what changes the gears.
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02-04-2008, 01:11 PM | #17 |
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can someone explain what launch control exactly does?
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02-04-2008, 01:45 PM | #18 |
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The launch control is tempting, but the other arguments are not too convincing, unless you don't really dominate a MT.
Why would it make it have better performance (apart from the 0.2 seg faster in 0 to 60)? A MT will definitely not make you loose concentration, assuming you are used (and know) how to drive a MT.... the same thing with the rev matching. My concern is reliability (you never know if the first production units will work perfectly) and if it will really work nicely. |
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02-04-2008, 02:14 PM | #19 | |
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02-04-2008, 02:19 PM | #20 |
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Well... basically, once engaged (from a dead stop), you floor the go pedal and keep it to the wood, with your other foot on the brake (I believe). The engine speed automatically rises to 4-5k, where it remains until you release the brake at which time the car is launched. The system controls the amount of throttle dependant upon traction until the car is completely underway. This is supposed to be, and likely is, the most efficient method. Once fully launched you engage the subsequent shifts.
I am not certain of the exact revs, but that is essentially how it is done. |
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02-04-2008, 02:35 PM | #21 |
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Im not sure thats quite right, I of course may be wrong, but I thought you select the RPMs using the cruise control lever and the launch is with DSC off and FULL throttle the whole time, wheel slip is controlled via clutch slip?
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