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      02-01-2016, 07:17 AM   #1
M2withACC
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Question M135i vs M135i LCi

Hey folks,

I just picked a fully loaded 2014 M135i with 9300km on it. I am just very curious what's the difference between the LCi models? I think 6hp bump and 0.1 torque bump. Is there any hardware mechanical difference? I am sure BMW updated the ECU and most likely a few minor tweaks in the ZF 8 speed gear box? Is possible to get the latest software to behave like the latest M135i? Or Is there any 3rd party tuning company can do this?

( it pretty much drove the same as my previous 2015 M235i 8 speed )

Many thanks!
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      02-02-2016, 12:01 PM   #2
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anyone?
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      02-02-2016, 02:29 PM   #3
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we are all on eco pro mode,thus we are replying very slowly
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      02-02-2016, 03:23 PM   #4
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There's been a few other threads on this, so it might pay just to look or search.
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      02-03-2016, 03:47 AM   #5
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The pre-LCI M135i's had the uprated engines in them (326BHP) for about six months
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      02-04-2016, 08:21 AM   #6
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Quote:
Originally Posted by matthewcornish View Post
The pre-LCI M135i's had the uprated engines in them (326BHP) for about six months
Hi, could you be more specific?! thanks!
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      02-04-2016, 10:05 AM   #7
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I dont believe there was any other hardware changes although some people swear the handling is improved on LCI models. BMW deny this however so it may be simply snake oil.

I for one am a happy owner of a 2013 nearly new M135 (8800 miles on clock when i bought mine 2 months ago)
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      02-04-2016, 10:39 AM   #8
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Two mates dyno'd there cars with a decent outfit; both pre LCI, one just under 340bhp, one just over 340.
Another tuner I know has tested over 20 M135is, all pre LCI; not one has been under 350lbs-ft.

They aren't short of poke.
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      02-06-2016, 09:25 AM   #9
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You should add a LSD and have a lot of fun with the car!
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      02-09-2016, 05:18 AM   #10
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Quote:
Originally Posted by vladberca View Post
You should add a LSD and have a lot of fun with the car!
How much fun will it gain?
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      02-09-2016, 05:25 AM   #11
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Quote:
Originally Posted by europeankar View Post
How much fun will it gain?
Depends on your driving style. If you stay well within the limits of traction, there is no gain. If you are a drift king, it will gain lots of fun.
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      02-09-2016, 01:05 PM   #12
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Searching the limits

Quote:
Originally Posted by ovekvam View Post
Depends on your driving style. If you stay well within the limits of traction, there is no gain. If you are a drift king, it will gain lots of fun.
For me the biggest advantage is the benign nature it endows on the car as you approach then exceed its limits of traction.

For sure it drifts a lot better but its the transition from neutral to oversteer that becomes a lot more controllable. Instead of that sudden transition, which many drivers may not be quick or skilled enough to catch, its simply a matter of taking off some lock as the car gradually and progressively starts to oversteer. For me, its that gentle transition that delivers the biggest payoff
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      02-09-2016, 01:39 PM   #13
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Quote:
Originally Posted by SteveC View Post
For me, its that gentle transition that delivers the biggest payoff
I agree. It is the handling when you drive the car at the limit. There is also an added traction advantage on those slippery winter days.

For most drivers, it makes no sense to install the LSD, because they would never notice the difference anyway. But most drivers don't have an M135i.

I remember a suspension engineer at BMW that was asked if the suspension setup on a new BMW was set up for the average driver. He said no! It was set up for the average BMW driver! :-)
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      02-09-2016, 03:35 PM   #14
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Quote:
Originally Posted by europeankar View Post
Hi, could you be more specific?! thanks!
Not really, sorry it's just that I noticed BMW updated the pre-LCI M135i specification not long before I committed to order one and the dealer confirmed the new builds were getting some of the little engine tweaks of the upcoming LCI. Not that 6HP makes a great deal of difference but y'know... I'll take it
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      02-09-2016, 04:00 PM   #15
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Quote:
Originally Posted by SteveC
Quote:
Originally Posted by ovekvam View Post
Depends on your driving style. If you stay well within the limits of traction, there is no gain. If you are a drift king, it will gain lots of fun.
For me the biggest advantage is the benign nature it endows on the car as you approach then exceed its limits of traction.

For sure it drifts a lot better but its the transition from neutral to oversteer that becomes a lot more controllable. Instead of that sudden transition, which many drivers may not be quick or skilled enough to catch, its simply a matter of taking off some lock as the car gradually and progressively starts to oversteer. For me, its that gentle transition that delivers the biggest payoff
But here, we're talking track day limits. Very, very rare in any daily or even spirited on road driving...and if one finds oneself approaching them, it's time to slow down.
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      02-09-2016, 04:13 PM   #16
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Quote:
Originally Posted by ttimbo View Post
But here, we're talking track day limits. Very, very rare in any daily or even spirited on road driving...and if one finds oneself approaching them, it's time to slow down.
It is slightly more common to approach the limit now and then in countries with winter climate. A little bit of sliding around and wheelspin is common to have a feel for how slippery it is. Even if you are going with safe speed with lots of safety margin, you can touch the limit with a quick stomp on the brake or throttle, or a yank in the steering wheel.
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