[themnmd]

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Hey Zed 4 M40 owners I was wondering how you like the speed/performance of your cars. I have a M340 and it is amazingly fast. Since we share the same B58 engine, or do we?

[BEAR-AvHistory]

Its pretty quick. Standard B58 382BHP

[BMWGirlFL]

Z4 is about 500 lbs. lighter so faster with same engine.

[themnmd]

Love the chance to drive one. Would have purchased one but not practical with kids in school

[BMWGirlFL]

I expect next gen 2er to be similar but with back seat, roof, bigger trunk & more tech.

[QueueCumber]

Originally Posted by themnmd

Hey Zed 4 M40 owners I was wondering how you like the speed/performance of your cars. I have a M340 and it is amazingly fast. Since we share the same B58 engine, or do we?

I absolutely love it. I’ve taken it on a few long road trips around NY, CT, and MA, and I find I’m comfortable for hours in it. It has amazing pickup for a car with single clutch and no launch control.

Plus, I even enjoyed it in traffic before NYC shut down. The cabin technology in the m40i has been a nice reprieve from the overly simplistic Porsche cabin tech (and terrible Porsche GPS.....).

[QueueCumber]

You learn something new everyday... lol

[Joe240]

I thought it was quick in stock form, but coming from a modded xDrive m240i the launch wasn't quite the same. Handling was significantly better. Less body roll from lower center of gravity. Had to mod it though in the end. Tried just the jb4 from the m240i initially and enjoyed it a bit. Ended going catless and stage 2 BM3 and it puts a shit grin on my face every time I decide to gas it in 3rd and the ass starts to slide out (sport+, manual shift, DTC on, DSC off)

[QueueCumber]

Originally Posted by Joe240

I thought it was quick in stock form, but coming from a modded xDrive m240i the launch wasn't quite the same. Handling was significantly better. Less body roll from lower center of gravity. Had to mod it though in the end. Tried just the jb4 from the m240i initially and enjoyed it a bit. Ended going catless and stage 2 BM3 and it puts a shit grin on my face every time I decide to gas it in 3rd and the ass starts to slide out (sport+, manual shift, DTC on, DSC off)

I’m heading in that direction eventually. It helps that I have a 997.2 GT3 RS to play around with also to slow that process down, but eventually I’m going to want more power.

[BEAR-AvHistory]

Sort of up in the air on that. Car currently can overpower the tires from a dead start. Also looses time with a short strip on the one two shift.

Expect more power will be a chase. More power, more tire. More tire, beef-up the half-shafts & so on.

Dragy already has it under 4 seconds to 60 but would take a lot more work to catch the cars at the next performance level.

[themnmd]

Originally Posted by BEAR-AvHistory

Sort of up in the air on that. Car currently can overpower the tires from a dead start. Also looses time with a short strip on the one two shift.

Expect more power will be a chase. More power, more tire. More tire, beef-up the half-shafts & so on.

Dragy already has it under 4 seconds to 60 but would take a lot more work to catch the cars at the next performance level.

I would guess that my m340 has the advantage of AWD. Best stock 0-60 I have seen is 4.0 seconds.
The Zed would be under that by a few ticks due to 500lbs lighter, provided a perfect hook up

[BEAR-AvHistory]

Originally Posted by themnmd

I would guess that my m340 has the advantage of AWD. Best stock 0-60 I have seen is 4.0 seconds.
The Zed would be under that by a few ticks due to 500lbs lighter, provided a perfect hook up

Agree it will run in the high 3's pure stock. Better to drive it than use LC.

[Sash///M]

It feels faster now...

Just had it tuned with catless downpipes installed... made nice power gains.

Current modifications
- H&R Springs
- 12.5mm spacers all round
- Catless downpipes
- Custom ECU tune

[Sladester100]

Originally Posted by QueueCumber

I absolutely love it. I’ve taken it on a few long road trips around NY, CT, and MA, and I find I’m comfortable for hours in it. It has amazing pickup for a car with single clutch and no launch control.

....

The 8HP gearbox has a triple clutch
https://g29.bimmerpost.com/forums/sh....php?t=1740288

Originally Posted by CarAndDriver.com

Albert Dick, vice president of car powertrain technology at ZF, says the 8HP’s deeply satisfying shifts are rooted in factors ranging from the quality of the solenoids to the manufacturing methods to the control software. They’re also a product of a fundamental design that determines how the four planetary gearsets, three clutches, and two brakes in every 8HP gearbox are parsed into eight forward ratios. All one-gear and two-gear shifts use just two shifting elements: one opens, another closes. The 8HP also executes certain multigear shifts in this manner; witness the leaps from sixth gear to third and even eighth to second.

[BEAR-AvHistory]

Originally Posted by Sladester100

The 8HP gearbox has a triple clutch

Its not really the same thing apples to oranges. The 8ZF is a classic single shaft type AT that uses internal clutch packs to manage the planetary gear sets. A torque converter sits where a clutch would be on a manual transmission.



The DCT is a fully geared transmission (same as a manual box) with two shafts each having its own clutch external from the gear set case.



In the Porsche PDK (DCT) supplied by ZF Friedrichshafen most of the parts are also used in the Porsche MT.

[themnmd]

Didn't we call these a manumatic a while back?

[Mixitt]

Test drove a 30i yesterday. About shit in my pants it's so fast and responsive. You're not getting but about 1/2 second more speed 0-60 with a 40i and paying dearly for it.

[DPelletier]

Originally Posted by Mixitt

Test drove a 30i yesterday. About shit in my pants it's so fast and responsive. You're not getting but about 1/2 second more speed 0-60 with a 40i and paying dearly for it.

the difference is more like 1.0 - 1.5 sec. zero to 60. Quarter mile is 13.8 at 100.7 vs. 12.4 at 112. If you're happy with the 30i, that's great and everyone has a different budget, but from a power/speed perspective, the difference is large.


Dave

[SakhirM4]

Originally Posted by Mixitt

Test drove a 30i yesterday. About shit in my pants it's so fast and responsive. You're not getting but about 1/2 second more speed 0-60 with a 40i and paying dearly for it.

Originally Posted by DPelletier

the difference is more like 1.0 - 1.5 sec. zero to 60. Quarter mile is 13.8 at 100.7 vs. 12.4 at 112. If you're happy with the 30i, that's great and everyone has a different budget, but from a power/speed perspective, the difference is large.


Dave

I think that using the price difference in terms of power/speed is really myopic. You need to compare the standard features list on a 30i to a 40i. You will find that you get way more than power speed in "what you are "paying dearly for". Even the body differences are worth extra to me as I like the 40i much better.

[BMWGirlFL]

I think M40i = small well spent upcharge over 30i w/ track pack.

[Joe240]

Originally Posted by BMWGirlFL

I think M40i = small well spent upcharge over 30i w/ track pack.

Couldn’t agree more

[BEAR-AvHistory]

Originally Posted by BMWGirlFL

Thats a picture of the LSD. This is an 8ZF