More miles on the A8 and?
09-08-2018, 12:29 PM
#41
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thanks for the Jalopnik article- it was an interesting read.
to be fair, it wasn’t the Mercedes engineers talking but the BMW M marketing guy talking about their beliefs.
When he said more or less MB decided long ago that automatics were more efficient that isn’t quite true. Not yet at least. The only real sports car in the MB lineup, the AMG GT, still uses the Speedshift 7-speed DCT. That one puts up decent track times from what I’ve seen.
Here's an article on those:
https://www.autoevolution.com/news/m...s-112461.html#
Last edited by Warp Factor; 09-08-2018 at 12:30 PM.
09-08-2018, 12:52 PM
#42
Drifting
Mercedes-AMG has two other "Speedshift" transmissions, a 7 and a 9 speed, with planetary gear architecture (not DCT), similar to that of the A8. Whether these will find their way into the GT remains to be seen.
Here's an article on those:
https://www.autoevolution.com/news/m...s-112461.html#
Here's an article on those:
https://www.autoevolution.com/news/m...s-112461.html#
Besides, your “MCT”: It’s just a way to get a patent and marketing on a single input shaft vs dual shaft multi clutch auto controlled manual gearbox ... is a relation clearly of DCT vs torque converter auto. Changing the DCT gearbox to planetary doesn’t change the fact the principle is like DCT. Even keeps same line name...
Last edited by Parcival; 09-08-2018 at 12:59 PM.
09-08-2018, 01:24 PM
#43
thanks for the Jalopnik article- it was an interesting read.
to be fair, it wasn’t the Mercedes engineers talking but the BMW M marketing guy talking about their beliefs.
When he said more or less MB decided long ago that automatics were more efficient that isn’t quite true. Not yet at least. The only real sports car in the MB lineup, the AMG GT, still uses the Speedshift 7-speed DCT. That one puts up decent track times from what I’ve seen.
that's like saying, "yeah I'm a plumber because I use flex seal!!!!" Haha
the a8 is a joke compared to real dct. And that's just fact.
its adequate. Or good when tuned. But still terrible when comparing to trans of other high performance cars lol
09-08-2018, 01:54 PM
#44
Team Owner
Thread Starter
AMG knows how to build insanely fast cars. And they dont use the type of "technology" that's found in the GM a8 lol.
that's like saying, "yeah I'm a plumber because I use flex seal!!!!" Haha
the a8 is a joke compared to real dct. And that's just fact.
its adequate. Or good when tuned. But still terrible when comparing to trans of other high performance cars lol
that's like saying, "yeah I'm a plumber because I use flex seal!!!!" Haha
the a8 is a joke compared to real dct. And that's just fact.
its adequate. Or good when tuned. But still terrible when comparing to trans of other high performance cars lol
Here we go again first it was GTRS2 vs A8 now it is AMG cars that are 5-6 and more the price. HAHA!
You're far from an expert on the Corvette A8 since you haven't owned one just a 2 cent opinion. You knowing nothing about plumbing either. You whole post is spew and looks and sounds like it was
written by a 5 year old. ANY DCT that would come in any 80k car would be far short of the A8.
The DCT would fail from the high RWTQ demands. Tell us about how the V-8 with about 1000 hp works with a DCT! Which the A8 can do!
Tell why we should gives a crap about your 2 cent opinion about a car you will never own . All you know about the car is from Magazine racing! Those are the real facts.
Tell us more about the CONTI tires how they are better than the MPSS that come on the car another one of your misnomers !
Better for cars and coffee runs !
Last edited by 3 Z06ZR1; 09-08-2018 at 03:35 PM.
09-08-2018, 02:25 PM
#45
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well that’s my point,right? We know the amazing SL65 amg and sl63 use autos. But MB specifically decided to put the DCT in their sports car line today.
Besides, your “MCT”: It’s just a way to get a patent and marketing on a single input shaft vs dual shaft multi clutch auto controlled manual gearbox ... is a relation clearly of DCT vs torque converter auto. Changing the DCT gearbox to planetary doesn’t change the fact the principle is like DCT. Even keeps same line name...
No, those Mercedes planetary transmission are not a DCT, any more than the A8 and A10 are. The main difference is that the Mercedes MCT transmission uses a computer-controlled-slip 7-plate clutch up front, rather than a torque converter, which means that they give up the torque multiplication of a torque converter. I'm not sure what the advantages would be, if any. Maybe they just don't want people to be able to call it a "slushbox".
However, the "slushbox" moniker really stopped being applicable when torque converters started spending most of their time locked up.
But if you want to call the Mercedes and GM planetary gear transmissions "single-input-shaft DCTs", I guess it's OK with me, even though it is highly inaccurate. One reason is that the A8 has 5 clutches, rather than 2. I didn't count how many the Mercedes transmission has, but it is way more than two. I will leave you to your own to look up the meaning of "dual".
Last edited by Warp Factor; 09-08-2018 at 02:39 PM.
09-08-2018, 03:10 PM
#46
What year does he have? Like I said you really don't know till you drive a few thousand miles on the car. IMO Even an hour drive doesn't clue you in on how to drive for one thing.
Mine shifts quickly even at part throttle much improved over what you are thinking. 16 M3 loses by a country mile to this car! Would not want one after the Z06. I had one!
Mine shifts quickly even at part throttle much improved over what you are thinking. 16 M3 loses by a country mile to this car! Would not want one after the Z06. I had one!
09-08-2018, 04:56 PM
#47
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So for you, it might be best to stick to what you knew "back in the olden days".
Last edited by Warp Factor; 09-08-2018 at 05:20 PM.
09-08-2018, 05:10 PM
#48
Thank god i have him on ignore.
Of course the M3 loses by a "country mile", it has 200hp less than a Z lol
But the trans is obviously better than the A8. Why are people even attempting at arguing against that? You have an A8, great. You like it? Also great.
But just because YOU OWN ONE, doesn't mean it's the greatest ever. That's like having a mentally challenged child and claiming, "my kid is the smartest because i said so!!!!!" There, take that!!!
LOL some people are so delusional when it comes to topics like this. We all know what's better. And it's not the GM 8 speed lol.
GM final calling for the dual clutch in the C8!!!! We're waiting! LOL
09-08-2018, 05:25 PM
#49
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09-08-2018, 05:39 PM
#50
Good to know my fishing reel keeps working! 
So how about that dual clutch??? LOL
So how about that dual clutch??? LOL
09-08-2018, 05:41 PM
#51
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09-08-2018, 05:59 PM
#52
When i post initially, you come right after. So now i expect it.
So guess who's taking whose bait??
So guess who's taking whose bait??
09-09-2018, 12:10 PM
#53
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09-09-2018, 12:37 PM
#54
Team Owner
Thread Starter
It is more the latter of someone who is simply a troll much like the handled "full of "excretion guy with a conflict addiction.
Last edited by 3 Z06ZR1; 09-09-2018 at 12:41 PM.
09-10-2018, 10:55 PM
#55
i like the A8, once i learned what it did and when, and in which modes, i think its great. Track mode when it holds gears at high lateral G's is awesome too. I'm pretty proficient with it, more than i thought i would be. I thought i wouldn't be able to control drift the car without wrecking it at high speed in curves, and that it was something i was sacrificing by not buying a manual this time around... with enough seat time, it started to become second nature... it seems scary to think about considering a wrong shift would cause me a lot of trouble, but it is consistent enough in what it does and the way it does it, that i can rely on it doing what i know its going to do next, and im talking about in true auto, not messing with the paddles at all. I like it a lot. My next car will be an auto or dct as well.
Last edited by Mikec7z; 09-10-2018 at 11:01 PM.
09-11-2018, 08:09 AM
#56
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Oldtimer
Really never gave it any thought until it was mentioned on the forum. I'm still amazed at the speed of my A8 at full throttle. 
09-11-2018, 11:02 PM
#58
if you are trying to drag race, i am pretty ignorant, the other guys can help you like JHebert and Chuck Cow. If you are trying to road race and pull high lateral G numbers, then i might be of assistance.
Last edited by Mikec7z; 09-11-2018 at 11:06 PM.
