bimmerpost/
BMW M2 and 2-Series Coupe
BMW Garage BMW Meets Register Today's Posts
home
BMW M2 Forums 2023+ (G87) BMW M2 G87 General Topics

Post Reply
 
Thread Tools Search this Thread
      04-17-2023, 04:33 AM   #23
M2withACC
Private First Class
131
Rep
160
Posts

Drives: M2
Join Date: Nov 2008
Location: NA

iTrader: (0)

Quote:
Originally Posted by c1pher View Post
I’m not sure which transmission to get. I’ve always got manuals, but driving in the city and having something like adaptive cruise control is helpful and less fatiguing for me. I do like to shift and don’t hate paddle shifters. I’m spoiled by PDKs when I do have to drive autos. However, I owned a 2020 Cayenne Turbo Coupe for a year with their sport auto, which is also a torque converter. It was pretty quick on upshifts but reminded you that it’s an auto on the downshifts. I suspect it’s similar behavior in the M2 auto. While I’m not buying for fuel economy, the 1/2 series has always had dinky fuel tanks. The auto with eight speeds might be a little less hungry. One thing I do like about my 911 manual is that seventh gear gives me 28-29mpg if I’m just cruising.
I am glad I picked the auto G87 over the 6speed. I wanted the ACC and the extra two gears on when I cruise on the freeway. The downshifts are slower than the dual clutches.
Appreciate 0
      04-17-2023, 07:48 AM   #24
trey100
Colonel
trey100's Avatar
United_States
1129
Rep
2,564
Posts

Drives: 2020 M2 Competition
Join Date: Jul 2007
Location: New York

iTrader: (0)

Quote:
Originally Posted by kyrix1st View Post
I disagree. I've mentioned this several times, but a skilled MT driver will shift as quick as the auto; it takes more time for the engine to rev up and down vs. the actual shift times, which means there's plenty of time for both auto and MT to engage the next gear. Auto can be perceived fast because the ZF8 has extremely short first 3 gears.

And just because the MT has longer gearing initially does not mean the car is accelerating slower. In fact, you are staying in the optimum powerband longer because each gearshift, other than DCTs which add inertia, will result in deceleration. In principle, less shifts are better.
Not the perfect example because of the traffic, but the in-gear acceleration for MT vs. DCT is identical as shown below.


Gearshifts are fairly instant for skilled MT drivers, unlike the ZF8 which struggle to downshift in certain lateral G situations. It's really annoying when you are threshold braking and the car wouldn't give you multiple downshifts instantly. I'd rather shift one less gear with MT.
I’m an MT guy but can’t agree on longer gearing being better because of the reason you state. The shorter gearing allows more torque multiplication which is a big bump especially on these big flat torque curve vehicles where being at any one specific rpm isn’t as big of a benefit. At some point even with shorter gearing there will be plotted points where the manual will be putting more power down but the overall area under the curve in terms of power to the wheels goes in favor of shorter gearing and more gears. It’s just not feasible to do in a manual because it wouldn’t be fun to have the first 3 gears being short when you are shifting yourself.

The one area where I wish BMW would improve is making 6th gear longer in the manual. On my F80 it has the engine buzzing at pretty ordinary speeds and with the power the car has it really isn’t necessary to keep it on boil.
Appreciate 0
      04-17-2023, 02:02 PM   #25
jmg
Lieutenant General
jmg's Avatar
19421
Rep
14,305
Posts

Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (1)

Garage List
Quote:
Originally Posted by 10" View Post
might as well drive an 80s Buick.

its a gussied up torque converter automatic that’s done to save money and because regular drivers were too dumb to figure out dual clutch transmissions.

Manual or bust—
I love manuals, I learned to drive on a manual, I drove manuals for over 25 years. Statements like these are simply gatekeeping something that is more precious to them then it should be.
__________________

2022 G82///M4 Competition X-Drive - KW-HAS, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing
Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3
Ordered • 2025 ///M2
Appreciate 0
      04-17-2023, 02:07 PM   #26
jmg
Lieutenant General
jmg's Avatar
19421
Rep
14,305
Posts

Drives: G82 M4C X-Drive
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (1)

Garage List
Quote:
Originally Posted by Ravenseal View Post
I've had the ZF on multiple cars, and I've owned the M-DCT as well. Agree that while the ZF is great and really smooth, it lacks the responsiveness of the DCT. When I test drove the M2 HEA car, I noticed they added a shift aggressiveness setting to the transmission that gives it a "fake" upshift kick like the DCTs have. The responsiveness on downshifts is still pretty lackluster. If I had a choice between a DCT and a 6MT for the G87, I think I would have chosen the DCT. The lack thereof made it a lot easier to go with the 6MT, which is in the spirit of this car, I suppose. The real downside of the 6MT for backroad warriors like myself is going to be the gearing. Going to spend a lot of time on 2nd gear hitting twisties, since I'm assuming 2nd is going to top out around 70-80mph. At least with the 8ZF, you can bounce through 2,3,4 on back roads - which is a fun feeling to be able to slap gears once the power band flattens out.
It's a conundrum. I'd love a G87 manual for backroads, but on track, I prefer a DCT and M-ZF8 over a manual. In traffic I prefer the ZF8 and DCT over a manual.
__________________

2022 G82///M4 Competition X-Drive - KW-HAS, Millway Race Camber Plates, Cup2 Connect*, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing
Previous • 2018 F80 ///M3 CS • 2016 F80 ///M3
Ordered • 2025 ///M2
Appreciate 1
      04-22-2023, 04:07 PM   #27
kyrix1st
Colonel
kyrix1st's Avatar
2447
Rep
2,402
Posts

Drives: G87 M2; E92M3 MT&DCT; M3 euro
Join Date: Sep 2014
Location: nyc

iTrader: (0)

Garage List
2004 BMW Z4  [0.00]
Quote:
Originally Posted by dominoM View Post
Just because a pro driver can manually shift as fast as an auto doesn't mean I can. Most of us are good but not that good. I think that is kind of the point in getting what works best for you.
If you are referring to that particular video...that's average Joe (myself) driving with average Toms (others). My point is, art of fast manual shifting is definitely achievable and should be pursued, especially with these cars! Auto never teaches you that.
__________________
Pass me if you can.
Appreciate 0
      04-22-2023, 08:49 PM   #28
dominoM
Private Low Class
305
Rep
280
Posts

Drives: G87 M2 ZB 6MT
Join Date: Feb 2011
Location: Colorado

iTrader: (0)

Thumbs up

Quote:
Originally Posted by kyrix1st View Post
If you are referring to that particular video...that's average Joe (myself) driving with average Toms (others). My point is, art of fast manual shifting is definitely achievable and should be pursued, especially with these cars! Auto never teaches you that.
Fair enough.
Appreciate 0
      04-23-2023, 05:40 AM   #29
Reesnat
Private
India
161
Rep
95
Posts

Drives: BMW G87 M2
Join Date: Aug 2020
Location: India

iTrader: (0)

For me it’s the Auto. Why? 8 gears means the gearing is much tighter and 100% better matched to extract the maximum performance of this engine.

On track and in general traffic, the auto is going to be much better, I doubt anyone can dispute that.

On a back road, Sunday morning drive, sure the manual would be fun. But to me that fun will be offset against the long gears and the fact that I won’t be able to extract the full potential of the engine.

Not to mention , if you intend to tune it, the auto is the much better choice.

And no, just because you drive a stick doesn’t make you more of an enthusiast so let’s not fall for the hyperbole.

Evaluate the choice based on what’s important for you.
Appreciate 2
D22M21425.50
      04-23-2023, 07:31 AM   #30
wj100
Lieutenant
578
Rep
475
Posts

Drives: 2022 Supra 3.0
Join Date: May 2010
Location: Annapolis, MD

iTrader: (0)

The DCTs in my previous E90 and F82 were my favorite parts about those cars. I've since had a ZF8 in an Alfa Giulia QV and now a Supra and, while it's certainly a good box, I would give up around town smoothness for the tactile feel of the DCT 100 times out of 100...I still dream about those up shifts...

Looking forward to my incoming G87. But, I'd be looking forward to it more if equipped with a DCT.
Appreciate 1
m2ss2210.00
      04-24-2023, 06:38 AM   #31
RockCrusher
Lieutenant Colonel
United_States
1839
Rep
1,711
Posts

Drives: BMW 2024 M8 Competition Coupe
Join Date: Jun 2022
Location: Benton County, AR

iTrader: (0)

Quote:
Originally Posted by wj100 View Post
The DCTs in my previous E90 and F82 were my favorite parts about those cars. I've since had a ZF8 in an Alfa Giulia QV and now a Supra and, while it's certainly a good box, I would give up around town smoothness for the tactile feel of the DCT 100 times out of 100...I still dream about those up shifts...

Looking forward to my incoming G87. But, I'd be looking forward to it more if equipped with a DCT.
My 1st real exposure to a DCT was with my 2023 MINI S. It came with a 7-speed dual clutch automatic. Turned out to be a great transmission at least for the 7K miles I put on the car. I only bought it to drive until I could find a JCW with a 6-speed. But if I had had room for a 3rd car I would have kept the S.
Appreciate 0
Post Reply

Bookmarks


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 11:53 PM.




g87
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