135i to get electronically controlled LSD?!

335i=:) · 07-01-2007, 06:31 PM

http://www.autocar.co.uk/News/NewsAr...Series/226353/

whoever wrote this better be right, I was pretty sure it wouldn't get a lsd, but now?

blacknbean · 07-01-2007, 06:44 PM

i hope the article is right too *crosses fingers*

krassanova · 07-01-2007, 07:00 PM

It's really hard not to get excited about the 135 Coupe when you read an article like that. If this car doesn't hit a homerun, I don't know what would.

Big Red One · 07-01-2007, 08:08 PM

Unfortunately, I'm thinking the author misunderstood some of the press info. Can't remember where, but I've seen the traction control system referred to as an approximation of an LSD on the car. The idea is that the TC applies individual brakes when it senses one wheel is rotating faster than the other. So, yeah, it accomplishes the same end result as an LSD (both wheels rotating at the same speed) but probably not as effectively.

emm3tt · 07-01-2007, 08:57 PM

Quote:

Originally Posted by jrsites

Unfortunately, I'm thinking the author misunderstood some of the press info. Can't remember where, but I've seen the traction control system referred to as an approximation of an LSD on the car. The idea is that the TC applies individual brakes when it senses one wheel is rotating faster than the other. So, yeah, it accomplishes the same end result as an LSD (both wheels rotating at the same speed) but probably not as effectively.

You are correct based on my understanding of the press release:

The DSC system on the 135i Coupe is designed specifically for performance-oriented driving. For instance, the accelerator pedal has a quicker response rate and electronic rear brake management is used to simulate a differential lock for stronger acceleration in turns.

ibeam81 · 07-01-2007, 09:58 PM

Although I'm pretty confident that the rear brake management system will do a reasonable simulation of LSD in limited use, I can't wait to see what kind of impact this has on the longevity of the rear brakes. Is any other manufacturer using a similar system and if so what has been the impact on the wear of the brakes?

imported_MPower · 07-01-2007, 09:59 PM

Quote:

Originally Posted by jrsites

So, yeah, it accomplishes the same end result as an LSD (both wheels rotating at the same speed) but probably not as effectively.

Definitely not as effectively. The difference being that a true LSD maximizes the power going to the tire with most grip, whereas the simulated lock brakes the tire with the least amount of grip (i.e. tire spinning) without sending more power to the other wheel. Each wheel will always get an even split of the power whereas an LSD varies the power delivery.

Quote:

Originally Posted by ibeam81

Although I'm pretty confident that the rear brake management system will do a reasonable simulation of LSD in limited use, I can't wait to see what kind of impact this has on the longevity of the rear brakes. Is any other manufacturer using a similar system and if so what has been the impact on the wear of the brakes?

It really shouldnt be any different than most of the traction control systems. It is very nearly the same thing.

strtfghtr · 07-02-2007, 02:34 PM

Quote:

Originally Posted by MPower

Definitely not as effectively. The difference being that a true LSD maximizes the power going to the tire with most grip, whereas the simulated lock brakes the tire with the least amount of grip (i.e. tire spinning) without sending more power to the other wheel. Each wheel will always get an even split of the power whereas an LSD varies the power delivery.

Yup, dead on.

I'll sit back and hope the LSD rumor is true

mikeo · 07-02-2007, 04:16 PM

I'm already speculating if the wonderful E46 M3 LSD dif will bolt up to the 135i subframe. Oh well, I'll have a whole warranty to drive through before I worry about that.

imported_MPower · 07-02-2007, 05:39 PM

Quote:

Originally Posted by mikeo

I'm already speculating if the wonderful E46 M3 LSD dif will bolt up to the 135i subframe.

That's highly optimistic. Im sure, though, that there will be hundreds of companies that will offer LSDs for these vehicles.

mikeo · 07-02-2007, 05:42 PM

Quote:

Originally Posted by MPower

That's highly optimistic. Im sure, though, that there will be hundreds of companies that will offer LSDs for these vehicles.

You're right of course. First things first--get the car.

imported_MPower · 07-02-2007, 05:46 PM

Quote:

Originally Posted by mikeo

You're right of course. First things first--get the car.

Absolutely. It's going to be a long 9 months.

amdmaxx · 07-02-2007, 05:53 PM

EVO/STI in 2 door lightweight hatch form..

Quote:

Originally Posted by krassanova

It's really hard not to get excited about the 135 Coupe when you read an article like that. If this car doesn't hit a homerun, I don't know what would.

strtfghtr · 07-03-2007, 09:08 AM

Quote:

Originally Posted by amdmaxx

EVO/STI in 2 door lightweight hatch form..

I hate the new hatch STi...

It wouldn't make any sense for a 2 door either, they are rally vehicles, not sports coupes.

Now an EVO engine and drivetrain in an Eclipse is something that would sell like hotcakes.

Back on topic:
I found this on the BMWusa website press release:

Quote:

The rear differential on the 1 Series comes from a new generation of final drives optimized
for running smoothness. Featuring double-helical ball bearings for the first time, the
differential runs at an even lower operating temperature reached more quickly than before
thanks to the reduction of fluid required in the differential.

This doesnt make any sense as I have no idea what a "helical" bearing is (I am a former bearing engineer)
I assume thay mean helical gears with doublerow angular contact ball bearings...

335i=:) · 07-03-2007, 11:22 AM

The good news is that you can buy LSD for 1500.00 from quaife. Assuming it's the same rearend as the 335i.

Probably not much more then it would be as a option from the dealer. I guess you might void your warranty, but probably not.

mikeo · 07-03-2007, 11:52 AM

Quote:

Originally Posted by 335ito135i

The good news is that you can buy LSD for 1500.00 from quaife. Assuming it's the same rearend as the 335i.

Probably not much more then it would be as a option from the dealer. I guess you might void your warranty, but probably not.

I'm sure that will become a VERY popular after-market mod!:thumbup:

Propagator · 07-03-2007, 12:23 PM

Quote:

Originally Posted by 335ito135i

The good news is that you can buy LSD for 1500.00 from quaife. Assuming it's the same rearend as the 335i.

Probably not much more then it would be as a option from the dealer. I guess you might void your warranty, but probably not.

How much does the installation usually run?

335i=:) · 07-03-2007, 12:37 PM

Quote:

Originally Posted by spinzero

How much does the installation usually run?

I'd say 500.00. But my uncle installed LSD's in 4 x 4 for 25 years, and he's going to help me.

krassanova · 07-03-2007, 10:14 PM

Quote:

Originally Posted by amdmaxx

EVO/STI in 2 door lightweight hatch form..

The official Sti pix have not been released...I saw what might be a photoshop, but it actually made the new Impreza bodystyle look good IMO. The fender wells were more aggressive and the stance looked wider (kit). I liked it.

TerpENME · 07-04-2007, 01:01 PM

Sigh... second car I'll be buying that'll need an immediate must-have mod. My current GTI came jacked up like a 4x4 on US-market specific springs to guarantee a 5 star crash rating. BMW needs to get over their rule about M-only LSDs.

krassanova · 07-04-2007, 06:31 PM

Quote:

Originally Posted by HotShoe32

Sigh... second car I'll be buying that'll need an immediate must-have mod. My current GTI came jacked up like a 4x4 on US-market specific springs to guarantee a 5 star crash rating. BMW needs to get over their rule about M-only LSDs.

BMW bent that rule with MINI. I am wondering if X-Drive would be just as good as an LSD. Anybody know? More importantly, have there been any discussions about a 135xi?

replicat · 07-04-2007, 06:49 PM

It would be a dream if it came with one, but it would definately be against all marketing logic.

The 335i is a hair slower that the E46 m3.. and purposefully so, they didnt want it to be quicker...and LSD would have gave it the advantage.

It also came detuned from factory, as to not rival the E92 M3 so closely. Adding an LSD to that equation would make the cars alot harder to choose from to the idiot office jerk that only looks at 0-60 times.

Now imagine if the 135i which,

(unless BMW decides to be punks and makes it purposefully slower, however they shouldn't worry as it is a different market of ppl.)

should beat the 335i without a doubt, had an LSD, it would be a 0-60 4.5 second car....

WOW! im already getting excited!

LSD, vishnu, 3" TBE, = 400rwhp 0-60 3.9-4.0secs
and using an ET Calculator i got 11.8!!!

C6 Z06 goodday SIR!!! (okay maybe im getting ahead of myslef, but wow. $40K + $10K mods = Quick, balanced, and agile sex!

07-01-2007, 06:31 PM	#1
335i=:) Second Lieutenant 27 Rep 290 Posts Drives: 335i sedan-blk/blk-Poplar Join Date: Oct 2006 Location: utah iTrader: (0)	135i to get electronically controlled LSD?! http://www.autocar.co.uk/News/NewsAr...Series/226353/ whoever wrote this better be right, I was pretty sure it wouldn't get a lsd, but now?
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07-01-2007, 06:44 PM	#2
blacknbean Major 14 Rep 1,044 Posts Drives: e92 335i 6MT Join Date: Jul 2007 Location: LA iTrader: (2)	i hope the article is right too crosses fingers
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07-01-2007, 07:00 PM	#3
krassanova Private First Class 2 Rep 156 Posts Drives: Join Date: Jun 2007 iTrader: (0)	It's really hard not to get excited about the 135 Coupe when you read an article like that. If this car doesn't hit a homerun, I don't know what would.
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07-01-2007, 08:08 PM	#4
Big Red One Private First Class 9 Rep 130 Posts Drives: Join Date: Jun 2007 iTrader: (0)	Unfortunately, I'm thinking the author misunderstood some of the press info. Can't remember where, but I've seen the traction control system referred to as an approximation of an LSD on the car. The idea is that the TC applies individual brakes when it senses one wheel is rotating faster than the other. So, yeah, it accomplishes the same end result as an LSD (both wheels rotating at the same speed) but probably not as effectively.
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07-01-2007, 09:58 PM	#6
ibeam81 Captain 20 Rep 722 Posts Drives: 2016 EBII M235i, 2004 Acura TL Join Date: Jul 2007 Location: Germantown, MD iTrader: (0)	LSD vs. Rear Brake Management Although I'm pretty confident that the rear brake management system will do a reasonable simulation of LSD in limited use, I can't wait to see what kind of impact this has on the longevity of the rear brakes. Is any other manufacturer using a similar system and if so what has been the impact on the wear of the brakes?
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07-02-2007, 04:16 PM	#9
mikeo Santa Fe Concorso 103 Rep 2,984 Posts Drives: '11 M-sport 328i, '13 X1 28i Join Date: Jul 2007 Location: Santa Fe, NM iTrader: (3)	I'm already speculating if the wonderful E46 M3 LSD dif will bolt up to the 135i subframe. Oh well, I'll have a whole warranty to drive through before I worry about that. __________________ Santa Fe Concorso - The Southwest's Premier Automotive Gathering.
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07-03-2007, 11:22 AM	#15
335i=:) Second Lieutenant 27 Rep 290 Posts Drives: 335i sedan-blk/blk-Poplar Join Date: Oct 2006 Location: utah iTrader: (0)	The good news is that you can buy LSD for 1500.00 from quaife. Assuming it's the same rearend as the 335i. Probably not much more then it would be as a option from the dealer. I guess you might void your warranty, but probably not.
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07-04-2007, 01:01 PM	#20
TerpENME Enlisted Member 0 Rep 40 Posts Drives: Join Date: Apr 2005 iTrader: (0)	Sigh... second car I'll be buying that'll need an immediate must-have mod. My current GTI came jacked up like a 4x4 on US-market specific springs to guarantee a 5 star crash rating. BMW needs to get over their rule about M-only LSDs.
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07-04-2007, 06:49 PM	#22
replicat Lieutenant 23 Rep 515 Posts Drives: 40MPG Join Date: Oct 2006 Location: Southern California iTrader: (0)	It would be a dream if it came with one, but it would definately be against all marketing logic. The 335i is a hair slower that the E46 m3.. and purposefully so, they didnt want it to be quicker...and LSD would have gave it the advantage. It also came detuned from factory, as to not rival the E92 M3 so closely. Adding an LSD to that equation would make the cars alot harder to choose from to the idiot office jerk that only looks at 0-60 times. Now imagine if the 135i which, (unless BMW decides to be punks and makes it purposefully slower, however they shouldn't worry as it is a different market of ppl.) should beat the 335i without a doubt, had an LSD, it would be a 0-60 4.5 second car.... WOW! im already getting excited! LSD, vishnu, 3" TBE, = 400rwhp 0-60 3.9-4.0secs and using an ET Calculator i got 11.8!!! C6 Z06 goodday SIR!!! (okay maybe im getting ahead of myslef, but wow. $40K + $10K mods = Quick, balanced, and agile sex!
	Appreciate 0 Quote