G29 Transmission vs E89 Transmission?

HEY32G · 07-17-2020, 01:39 PM

Hey guys, I currently have a Z4 sdrive35is, just wondering if anyone can compare the dual clutch in mine to the 8 speed auto in the new G29, particularly interested in M40i configuration if that matters - I don't think it does. I love the way mine shifts (I like to use the paddles when driving more spirited), does the new car shift as quick? Thanks.

Sladester100 · 07-17-2020, 05:48 PM

Can’t speak for the E89 dual clutch system but can attest to the 8HP gearbox being amazing. It has a triple clutch and according to stats it shifts in 200ms.

In real experience in S mode I find it incredibly smooth, quick and reactive and I love the paddle action too (but S is so good I often leave it there). I told it will change non-sequentially too if needed but it’s so smooth I haven’t noticed particularly.

An interesting write up here; https://www.bmwblog.com/2019/05/02/v...-the-business/

And another; https://www.caranddriver.com/feature...f-eight-speed/

In short, I love it.

BEAR-AvHistory · 07-17-2020, 06:10 PM

Yes its just as quick & hits really hard in Sport+ stick left & Stability off. Will chirp the tires on a 1/2 shift at WOT everytime.

Have run sub 4 second 0-60 low 12's 1/4 mile on Launch Control as measured by a "Draggy" GSP device pure stock with factory tires. Think a JB4 tune will put it in the 3.5 second to 60 range.

Had a tuned 335is 7DCT.

HEY32G · 07-20-2020, 08:02 AM

Thanks for the replies guys. Makes me feel better.

gasnet · 07-20-2020, 08:15 PM

Dct transmission shifts great. Had it in my e89, but its no fun. I prefer the G29. You can't power brake a dct. I like to make a quick u turn and smoke the tires. You can't do that with the e89 dct. I always hated my 35is for that reason.

DPelletier · 07-23-2020, 02:47 PM

Love it in the Z4 and loved it in my Jag F type.

Romer · 07-24-2020, 10:05 PM

I never used the paddle shifters in either the E89 or the G29 so I can't comment on that. I will say the transmission shifts better and the whole drive train is much more responsive. I liked driving the E89, I love driving the G29. Not only the drive train, but everything except for cup holders is better.

Sladester100 · 07-25-2020, 06:06 AM

Quote:

Originally Posted by Romer

... Not only the drive train, but everything except for cup holders is better.

🤣👍🏻 hows the adapted one holding up?

Romer · 07-25-2020, 07:47 AM

Quote:

Originally Posted by Sladester100

🤣👍🏻 hows the adapted one holding up?

The cup holder I added is fine. I would recommend it

07-17-2020, 01:39 PM	#1
HEY32G Captain 224 Rep 770 Posts Drives: Z4 sdrive35is Join Date: Jun 2007 Location: Texas iTrader: (0)	G29 Transmission vs E89 Transmission? Hey guys, I currently have a Z4 sdrive35is, just wondering if anyone can compare the dual clutch in mine to the 8 speed auto in the new G29, particularly interested in M40i configuration if that matters - I don't think it does. I love the way mine shifts (I like to use the paddles when driving more spirited), does the new car shift as quick? Thanks.
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07-17-2020, 05:48 PM	#2
Sladester100 Lieutenant 128 Rep 588 Posts Drives: F30 320d & G29 M40i First Edtn Join Date: Dec 2012 Location: South East, UK iTrader: (0) Garage List 2019 BMW Z4 M40i Fi ... [9.50]	Can’t speak for the E89 dual clutch system but can attest to the 8HP gearbox being amazing. It has a triple clutch and according to stats it shifts in 200ms. In real experience in S mode I find it incredibly smooth, quick and reactive and I love the paddle action too (but S is so good I often leave it there). I told it will change non-sequentially too if needed but it’s so smooth I haven’t noticed particularly. An interesting write up here; https://www.bmwblog.com/2019/05/02/v...-the-business/ And another; https://www.caranddriver.com/feature...f-eight-speed/ In short, I love it. __________________ F30 320d ED Melbourne Metallic, Vis Pack, Dakota Leather, & Other Goodies G29 M40i First EditionFrozen Orange
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07-17-2020, 06:10 PM	#3
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3124 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	Yes its just as quick & hits really hard in Sport+ stick left & Stability off. Will chirp the tires on a 1/2 shift at WOT everytime. Have run sub 4 second 0-60 low 12's 1/4 mile on Launch Control as measured by a "Draggy" GSP device pure stock with factory tires. Think a JB4 tune will put it in the 3.5 second to 60 range. Had a tuned 335is 7DCT. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT Last edited by BEAR-AvHistory; 07-17-2020 at 06:28 PM..
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07-20-2020, 08:02 AM	#4
HEY32G Captain 224 Rep 770 Posts Drives: Z4 sdrive35is Join Date: Jun 2007 Location: Texas iTrader: (0)	Thanks for the replies guys. Makes me feel better.
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07-20-2020, 08:15 PM	#5
gasnet Lieutenant 255 Rep 408 Posts Drives: 2020 Z4 M40i Join Date: Jan 2013 Location: NY iTrader: (0)	Dct transmission shifts great. Had it in my e89, but its no fun. I prefer the G29. You can't power brake a dct. I like to make a quick u turn and smoke the tires. You can't do that with the e89 dct. I always hated my 35is for that reason. __________________ Garage 2014 Z4 35is RIP /2016 Z4 28i RIP 2015 335i RIP 2016 Audi A7 RIP / 19 Genesis G80 RIP 2020 Z4 M40i / 2022 X3
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07-23-2020, 02:47 PM	#6
DPelletier Lieutenant 675 Rep 556 Posts Drives: 2020 Z4 M40i Join Date: May 2019 Location: Kelowna, B.C. Canada iTrader: (0) Garage List 2020 Z4 M40i [8.00]	Love it in the Z4 and loved it in my Jag F type.
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07-24-2020, 10:05 PM	#7
Romer BMW and Toyota Enthusiast 73 Rep 212 Posts Drives: 2019 Z4 sDrive30i Join Date: Oct 2007 Location: Centennial, CO iTrader: (0)	I never used the paddle shifters in either the E89 or the G29 so I can't comment on that. I will say the transmission shifts better and the whole drive train is much more responsive. I liked driving the E89, I love driving the G29. Not only the drive train, but everything except for cup holders is better. __________________ 2019 Z4 sDrive30i, 1973 FJ40 Land Cruiser, 2014 URJ Land Cruiser and 2016 Kimberley Kamper
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