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      03-30-2018, 11:58 AM   #45
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Quote:
Originally Posted by kern417 View Post
I kind of thought that could be the case and makes sense, because abs is electronically controlled. So I can see that, but still weird that a bbk requires coding but upgraded rotors/pads that may make your car stop just as fast, don't. I still think there is some fluff to that requirement, maybe safety regulations or something that they have to meet as an OEM provider for aftermarket upgrades. But did the brakes actually feel any different before and after coding (if you tried it)?

the thing about our diff is nothing's electronically controlled. with an aftermarket diff you won't have any electronics either. but maybe someone that knows more than us will stumble on the thread and explain.
No, i didnt drive before and after programming as it was all dealer installed so then the BMW parts assume the full remaining warranty of the car.
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      01-12-2019, 10:46 PM   #46
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Originally Posted by 3ToAgree View Post
Maybe the 335i was different but the 340i for sure requires coding.
I pulled the trigger on the LSD and had it installed this week. So far very happy with the results. Car feels all around smoother and handles nicely even in simple every day driving.

Out of all the benefits or characteristics I read regarding an LSD, something I had not expected was a difference in the way the engine sounds on accelerations. More "angry": when before it was more of a loud "hum", now it's like every piston stroke can be heard more deliberately. At first I thought it was just me, but my girlfriend noticed it too when I took her for a ride. The only thing I can think of is simply that the difference in the feeling of grip changed the way in which I am applying throttle. (Of course this is just a function of how I react to it, as opposed to a feature of it in itself)

Had a word with the head engineer over at the BMW dealership regarding coding:

He said that no coding was necessary during installation as this was a mechanical adjustment to the car that did not concern the electronics.

I did not want to press him on the issue, after all, he's the expert and I'm not.

Left me wondering though, given what I've read in this thread.

Last edited by Aberle; 01-12-2019 at 11:32 PM.
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      01-18-2019, 08:36 PM   #47
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Quote:
Originally Posted by Aberle View Post
I pulled the trigger on the LSD and had it installed this week. So far very happy with the results. Car feels all around smoother and handles nicely even in simple every day driving.

Out of all the benefits or characteristics I read regarding an LSD, something I had not expected was a difference in the way the engine sounds on accelerations. More "angry": when before it was more of a loud "hum", now it's like every piston stroke can be heard more deliberately. At first I thought it was just me, but my girlfriend noticed it too when I took her for a ride. The only thing I can think of is simply that the difference in the feeling of grip changed the way in which I am applying throttle. (Of course this is just a function of how I react to it, as opposed to a feature of it in itself)

Had a word with the head engineer over at the BMW dealership regarding coding:

He said that no coding was necessary during installation as this was a mechanical adjustment to the car that did not concern the electronics.

I did not want to press him on the issue, after all, he's the expert and I'm not.

Left me wondering though, given what I've read in this thread.
Interesting, never thought of that...
I recently drove a 340i ZHP with the LSD standard, the first thing I noticed was significant harder pull from stop to 30 MPH and the better acceleration coming out of corners where my 335i MPPK standard axle breaks loose way too easy or starts to lose grip on any imperfect surface. I was debating putting a LSD on mine or just taking the plunge on a new ZHP. That being said, I could hear the sound being deeper after your install, because the traction would be much better, thus not activate the traction control (instant de-tune to keep from spinning wheels). Which LSD unit did you get? who did you buy from?
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      01-18-2019, 09:15 PM   #48
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Been itching about one myself. If it doesn't require coding then installing it is a cake on my end.
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      01-19-2019, 12:20 AM   #49
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Quote:
Originally Posted by kpgray View Post
Interesting, never thought of that...
I recently drove a 340i ZHP with the LSD standard, the first thing I noticed was significant harder pull from stop to 30 MPH and the better acceleration coming out of corners where my 335i MPPK standard axle breaks loose way too easy or starts to lose grip on any imperfect surface. I was debating putting a LSD on mine or just taking the plunge on a new ZHP. That being said, I could hear the sound being deeper after your install, because the traction would be much better, thus not activate the traction control (instant de-tune to keep from spinning wheels). Which LSD unit did you get? who did you buy from?
Very interesting!

I got the M Performance LSD, part number: 33108659989

I bought it from Theis Motorsport. Bought the MPPSK from them as well as a couple of other items (pedals/rear diffuser), very good service.

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Originally Posted by B58 View Post
Been itching about one myself. If it doesn't require coding then installing it is a cake on my end.
You'd install it yourself? If so, would you consider making a video of the process?
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      01-19-2019, 04:25 PM   #50
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Hello, I have installed the OS Giken LSD from Japan at Hardeman Motorsport in the Netherlands. It's the best upgrade on my 2016 440I with MPPSK. They also replaced adaptive m-sport suspension with the Íhlins Road & Track kit and i love the combination. Best mods for my car sofar. Understeer has gone, only when you do engine braking, then the LSD is adjusted to limit to about 40 % and you get safe understeer. Going on throtle midcorner creates a good controllable oversteer.
And indeed there is no need for software adjustments. Due to the LSD the need for corrections by the ESP is less.
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      01-19-2019, 05:43 PM   #51
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Quote:
Originally Posted by Aberle View Post



You'd install it yourself? If so, would you consider making a video of the process?

If i get one i will
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      01-19-2019, 07:41 PM   #52
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so with the new unit going in - are people selling their "old" diffs to offset the cost of the new one? If yes, what it the market value?
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      01-20-2019, 03:36 PM   #53
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Quote:
Originally Posted by jandeman58 View Post
Hello, I have installed the OS Giken LSD from Japan at Hardeman Motorsport in the Netherlands. It's the best upgrade on my 2016 440I with MPPSK. They also replaced adaptive m-sport suspension with the Íhlins Road & Track kit and i love the combination. Best mods for my car sofar. Understeer has gone, only when you do engine braking, then the LSD is adjusted to limit to about 40 % and you get safe understeer. Going on throtle midcorner creates a good controllable oversteer.
And indeed there is no need for software adjustments. Due to the LSD the need for corrections by the ESP is less.
That's a very interesting build you've got there. I was checking out the features on that OS Giken LSD and it looks amazing!

Thank you for confirming that bit regarding (no) coding.

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Originally Posted by B58 View Post
If i get one i will
Awesome! I'll be checking your thread for updates.

Quote:
Originally Posted by RTPenland View Post
so with the new unit going in - are people selling their "old" diffs to offset the cost of the new one? If yes, what it the market value?
Ideally yes, but according to the dealership I am one of only two owners of a 340i in my country thus far. When picking out the LSD online, I ordered one that "seemed" to match, but was quickly told by the store that I required a part number specific to my 340i, so I have no one to sell it to. This might change with time as I heard they might be bringing in some this year. So just as is the case of the stock exhaust when I had the MPPSK installed, the "old" diff is sitting in a closet awaiting the prospect of becoming a decorative item.
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      01-29-2019, 05:50 PM   #54
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anybody know what % of lock the MPerf. LSD on accel and decel?
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      01-29-2019, 05:56 PM   #55
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Quote:
Originally Posted by dab_of_oppo View Post
anybody know what % of lock the MPerf. LSD on accel and decel?
30% lockup on acceleration and 9% lockup on deceleration.-
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      01-30-2019, 12:21 PM   #56
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Originally Posted by Aberle View Post
30% lockup on acceleration and 9% lockup on deceleration.-
Yikes that doesn't seem like a lot. I'm trying for the same 'feel' as my e92 M3 (diff-wise) but that was 100% lock I believe. Basically want guaranteed 2-wheel wheelspin on accel, as this open diff is killing me.
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      01-30-2019, 06:07 PM   #57
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Quote:
Originally Posted by dab_of_oppo View Post
Yikes that doesn't seem like a lot. I'm trying for the same 'feel' as my e92 M3 (diff-wise) but that was 100% lock I believe. Basically want guaranteed 2-wheel wheelspin on accel, as this open diff is killing me.
Same here man this open diff is killing me as well
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      02-02-2019, 01:31 PM   #58
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Quote:
Originally Posted by dab_of_oppo View Post
Yikes that doesn't seem like a lot. I'm trying for the same 'feel' as my e92 M3 (diff-wise) but that was 100% lock I believe. Basically want guaranteed 2-wheel wheelspin on accel, as this open diff is killing me.
The OS Giken is a visco type lsd like the MPerf lsd. But it has a lot more discs in it so it is much more robust and needs less to no maintenance. Before install the the technician can adjust the % for accellaration and decelleration
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      02-14-2019, 08:26 PM   #59
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Quote:
Originally Posted by jandeman58 View Post
The OS Giken is a visco type lsd like the MPerf lsd. But it has a lot more discs in it so it is much more robust and needs less to no maintenance. Before install the the technician can adjust the % for accellaration and decelleration
sounds like a great mod for when the warranty is up!
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