View Poll Results: DCT or traditional AT? | |||
I prefer a DCT. | 235 | 60.57% | |
I prefer a traditional AT. | 32 | 8.25% | |
Either is fine with me. | 53 | 13.66% | |
I don't care. No manual, no purchase. | 68 | 17.53% | |
Voters: 388. You may not vote on this poll |
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07-24-2019, 02:37 PM | #111 | |
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An M-DCT box is marketed as an "automated manual" - i consider it a fly-by-wire version of a manual transmission where I don't need to use levers and pushrods to make something happen, and the mechanical parts move a lot faster. I don't need to take my hand off the steering wheel and waggle one foot around in the air to feel driver engagement. BUT... driver engagement depends crucially on the fact that my input timings matter. When I want to downshift, it has to happen now. So, can we please try to get away from the 6MT "purists" saying "if I don't use a stick then all auto transmissions are the same" and "the ZF changes gear really fast and smooth". That's basically irrelevant to me. I am prepared to hope that M-division includes some test drivers who feel the same way I do. Perhaps they will tweak the ZFat to be more responsive to inputs than all existing incarnations. If not, I'll be looking elsewhere. |
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07-24-2019, 02:41 PM | #112 | |
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07-24-2019, 03:02 PM | #113 |
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Its quicker and more responsive.
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07-24-2019, 03:04 PM | #114 | |
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The quest to make more money. Hell, the DCT in the F8x was from the M5. |
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07-24-2019, 03:07 PM | #115 |
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The torque now would kill a DCT quick. Couldn't handle the 460WTQ in my SC E92 without upgrades and the ZF in my F90 is quicker and more precise than the DCT in my M4GTS. Just my personal comparison. Also the ZF comes in with less weight. Not sure about your "cheaper" claim but lots of speculation out there. I do agree that the DCT is more aggressive, because it is mechanical.
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07-24-2019, 03:23 PM | #116 | |
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07-24-2019, 03:31 PM | #117 |
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I think the BMW DCT can't handle the torque. BMW doesn't want to spend money on developing a new DCT to handle the torque so they went with the ZF.
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07-24-2019, 05:52 PM | #118 |
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I don't know if this is a fair comparison but I've driven an M4 DCT and an Alfa Quad with the ZF and the Quad felt a tad quicker to me. Maybe it was just me, but I honestly did not feel the DCT better in anyway or worse..fairly even maybe a hair to the Quad.
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07-24-2019, 06:23 PM | #119 | |
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07-24-2019, 08:57 PM | #120 | |
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07-24-2019, 09:53 PM | #121 | |
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07-25-2019, 01:14 PM | #122 | |
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~ 24 M4 Comp
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07-25-2019, 01:17 PM | #123 | ||
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07-25-2019, 01:29 PM | #124 |
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not true at all. The F1x M5 and M6 cars came with a 600ps engine with 516lbft of torque. The G8x will not have more torque than that!
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07-25-2019, 01:35 PM | #125 | |
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Plenty of people have put up dynos of them making more than 500lbft at the wheels, such as this (first in google, I didn't bother to look if this is a high or low dyno) https://www.6post.com/forums/showthread.php?t=1204708 The DCT in the E9x had different ratios and IIRC was rated at 450nm torque. In the F1x and F8x it is rated at 700nm
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SCOTT26 "So as an admirer of the M5 and a potential customer of an M5 Touring. I would run naked around the streets of Garching if they were to offer one."
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07-25-2019, 01:41 PM | #126 | ||
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07-25-2019, 09:25 PM | #127 | ||
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07-26-2019, 04:42 AM | #128 | |
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Ever wonder why Supercars have DCTs almost exclusively ? |
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07-26-2019, 05:22 AM | #129 | |
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2008: Remember how BMW boasted the shit out of consistent less-than-60ms shifting speed of M-DCT back in 2008? They now advertise ZF transmission in M5 as "M sport step-tronic 8 speed automatic transmission" without any of those performance adjectives. Quite odd for M that likes to boast other technologies like M-xDrive, Don't you think? They don't claim the transmission is better shifting than previous generation. It is presumably due to legal reasons. 2014: BMW M markets the shit out of CFRP driveshaft in M4, boasting 40% weight reduction in rotating mass. 2017: BMW Group quietly announces on their webpage that M4s from October 2017 will gradually have steel driveshafts, on pretext due to inability to cope with larger diameter exhaust pipes of OPF filters. Now anyone who took a materials engineering class would know this is pure bs as CFRP composite is able to achieve the same torsional stiffness of steel/aluminum alloys at around half the weight given identical dimensions. 2018: BMW M puts ZFat on M5. Some long term owners start to complain its lack of input response. 2019: BMW M does not confirm which "automatic" transmission will be on the G8x M3/M4. But BMW's internal naming clearly differentiates torque converter automatics with dual clutch transmission (look up on dealer system, quite similar to R**loem) I'm thinking that this is because BMW knows that some customers will immediately move on to Porsche or AMG if they were to offer the same transmission, so they are waiting for the old customers to "accept" that it will likely be automatic transmission. I refuse that, and so should you for a better world.
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Last edited by kyrix1st; 07-26-2019 at 05:28 AM.. |
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07-26-2019, 05:49 AM | #130 | ||
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They don't advertised because most likely it's not faster. Plus there is cost savings. I am sure M3 will get similar transmission as M5 About CFRP there has been testing done on torsion tester see below. Will see if there will be one on new M3/4 i would assume it will sense they know they need to add OPF filter and they should make room.
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07-27-2019, 12:09 AM | #131 | |
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Your words dude |
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07-28-2019, 04:42 AM | #132 |
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I agree however I think it does not matter what technology sits in the box. Is auto transmission good is good that is all auto people (recently me too) care about.
I test drove the new M5 and was impressed. Same with 911 PDK.
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