LSD info |
View Poll Results: Will you get the LSD? | |||
Yes | 37 | 42.53% | |
Pass | 50 | 57.47% | |
Voters: 87. You may not vote on this poll |
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03-16-2014, 12:30 PM | #45 |
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03-16-2014, 12:32 PM | #46 |
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03-16-2014, 01:39 PM | #47 |
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Wife drives a '12 Z4 35is foothills east of Seattle. We put blizzaks on it from Nov/Dec - March. No issue in the snow.
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03-16-2014, 02:01 PM | #48 |
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Seems as though many responding here have not owned M cars. An M LSD is amazing and is one of the things that makes an M car so special. You all don't know what you are missing.
In our M3's, in M dynamic mode you can drift in turns with just a touch of power at very modest speeds. It is incredible. The thing I don't know is how this M performance LSD will compare to an M LSD. If it's as good as an M LSD I would buy it. If not, I would not. The driving dynamics of an E90/92/93 M is so superior to the non-M cars it's VERY difficult to go back to non LSD BMW product unless you are talking X drive models
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03-16-2014, 03:34 PM | #49 |
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She drove an E92 M3 for 50k miles. I have a '12 335 xi. All three are autos. While the M3 certainly out handled either of car, it's really only noticeable on the track, as other have said. Driving it on the street in a manner to routinely feel the difference the LSD of the M offers is probably very irresponsible and illegal. But fun .
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03-16-2014, 05:05 PM | #50 | |
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No disrespect intended, but if you can't feel the difference of the LSD in normal or slightly spirited driving.. uh.. maybe the M is overkill for you.
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03-16-2014, 05:37 PM | #51 |
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03-16-2014, 05:46 PM | #52 |
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1st: The is no reason a nearly $50k performance car doesn't already come with a mechanical LSD.
2nd: The cost (optional) should be supplemented by a $2,500 credit for any BMW, that has a //M in it's name (M135/M235). 3rd: It is not even out yet. I have no doubts it will transform the car, but BMW is feeding off it's customers here. $50,000+ for a BMW M235i w/lsd ..? I have a 135is and the car is negative experience/frustrating for not having a LSD. The e-diff is too controlling and nothing is consistent, or constant, as the e-lectonics are always trying to do something different. Now instead of enjoying the finesse of the car, I am fighting it. So, at nearly $50k (w/lsd), how is the M235is going to touch the new Mustang GT350 (s550)? Or, any other $45,000+ car, that comes standard with a mechanical LSD, or AWD..? |
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03-16-2014, 10:00 PM | #53 | |
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ok the argument is that for $3500+ for a lsd is not worth it for the 235
we all already know how good lsd is and how badass the m cars are Quote:
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03-17-2014, 01:36 AM | #54 | |
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03-17-2014, 10:01 AM | #56 | |
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03-17-2014, 10:11 AM | #57 |
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Well yes it does, but if you think for a second that BMW has put the kind of development into the brake biased control that Macca has for the P1, I've got a bridge to sell you. Don't forget the rear weight bias of the P1 and the ability to agnostically add e-power to either rear wheel too. However, a great statement by Chris Harris on Pistonheads about the P1's open diff:
I'm the biggest critic of these electronic non-differentials. I think the 12C suffered for not having a mechanical LSD, and even though I do buy all of the engineering arguments that see then as a malign influence in the search for optimum road behaviour, I think modern power outputs require them (and I like doing skids) The P1's system is the first I've driven that actually works. When you see the video next week, you'll see. The response from the rear axle under power feels like there is a mechanical locking diff. It's uncanny. But I just judge these things on confidence - in a 12C, even in its latest brake-steer calibration ( and late cars are much different to early ones) you never quite know if one or both wheels will spin-up. In the P1, it's always both. Sounds terrible, but you need to feel it from the cabin to see how it works. For me it was the big question mark over the car's specification, having driven it, it's a compete non-argument. The perfect suspension system for a RWD car would have no locking rear diff. It corrupts pretty much everything: it effectively adds spring rate under load, it causes understeer,it harms height speed stability in a straight line, and in the case of a plate-type diff it can cause havoc as/when/how it loads and unloads. But with today's massive power outputs, cars are traction limited and tend to run such stiff springs that the LSD effect is less pronounced because the chassis is already so compromised for road use. And on a practical level, not fitting one to your new super sports car precludes big, controllable slides for the media push. Ask McLaren about that one. The holy grail I suppose is a constantly variable locking diff that gives 100percent when you need it (post apex) and zero when you don't (braking and turn-in) (the SLS Black has the best one of these I've tried, but BMW M do a good job too) I don't like stuff with heaps of power/torque and an open diff. It spoils the fun - ergo, I'd sacrifice some Lotus-like compliance to feel that LSD connection between my right foot and the rear axle. This is where those early 12C's struggled. And hence my genuine sense of alarm when I asked C.Goodwin if the car ran an open diff and he smiled and said 'Yes, but drive it before you start shouting at me'. I'm probably stirring a hornet's nest here, and people with greater knowledge/experience will flame me down, but that's a brief summary of how I view the subject. Mechanical locking diffs are like a good cigarette: destructive, probably non-justifiable. But in the right circumstances they're perfect and easily justified. To extent the metaphor: The P1 is the first e-cigarette that could persuade a hardened Marlboro red puffer to go electronic. |
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03-17-2014, 11:20 AM | #58 | |
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Exactly! My build was close to 51k without an LSD. With the 3600 LSD I'd be at 55k with taxes which puts this car price-wise in territory it shouldn't be in, especially when it should have come standard on the car. But, for a feature that should be factory installed (or optioned) but isn't and that nobody has even tried/reviewed yet, to shell out that kind of money is not worth it on this car, at least at this point in time. |
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03-17-2014, 11:38 AM | #59 | |
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I would guess than your E30 did not have 330 ft-lbs of torque from 1,400 rpm?
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03-17-2014, 12:44 PM | #60 |
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Point taken.
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03-18-2014, 09:40 AM | #61 |
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Does anyone know what kind of LSD it is? There are many different types of LSD qualities. Also, anyone know if the gear ratios change or anything?
For example, turner sells some LSD that are 2,000 for the parts alone. With installation, you could probabaly get into the 3K range and it's not OEM or backed up BMW warranty
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03-18-2014, 10:01 AM | #62 |
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Of all the parts you could change on a car that influence warranty claims, I'd think an LSD would be somewhere between lug nuts and the little button on the end of the e-brake handle.
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03-18-2014, 06:14 PM | #63 | |
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You have 12 years of track experience and could definitely benefit from the LSD. Only a small portion of m235i's will ever see track time, and even fewer will be driven in a competition where the fraction of a second gained from a LSD will matter. I still don't see the need for it on the street if the nannies are on. P.S. My E30 is NA, so the torque comes in way past 1,400. P.P.S. I bet your 911 is a beast!
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03-18-2014, 06:38 PM | #64 | |
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I would assume that generally enthusiast drivers are the target market for this car, so it applies to us all. |
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03-18-2014, 07:13 PM | #65 |
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Again....is it worth the $3500+
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03-19-2014, 01:18 PM | #66 | |
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Quaife LSD
Hi all
Just had quaife LSD, birds b1 ARBs and H&R sport springs put on my m135i with oem adaptive damper Superb All for about the same price installed as an oem drexler LSD retrofit would be from BMW. Happy days Quote:
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