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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old September 28th, 2017, 19:44   #1
travis45
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Default Limited Slip Differential in DSG

Looking everywhere for some information. Would like very much to install a limited slip differential in my 14' JSW With a DSG transmission.

A lot of information out there on install of a LSD in a manual transmission.

Would love to have a conversation with someone who has done this job. Or if anyone who can point me in the direction of more information. I've never opened up a DSG and want to be prepared before I do.

Respectfully,
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Old September 29th, 2017, 04:22   #2
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Wavetrack makes it for dq250 ..that would be my 1st choice.
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Old September 29th, 2017, 04:44   #3
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The standard ASR/EDL with the ESP is not enough? I think that is why they generally do not bother much with locking or limited slip mechanical differentials in FWD cars. The traction control works pretty good.

Of course if you are wanting to road race or track day the car, that may be a different story. Then the mechanical type has an advantage. Because it needn't reduce any available power in order to work.

But for getting around in winter weather, all my dubs equipped with ASR/EDL do just fine. Excellent actually.

But with a lot of power mods, the LSD would certainly be welcome and may even make for the electronic nannyware to not intervene nearly as much.
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Old September 29th, 2017, 04:54   #4
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I agree that the traction control works well. But after last Sunday at Road America, I realize how much potential isn't hooking up with the track. My guess is that seconds would be shaved off my times with th LSD.

Thanks Mac, yes Wavetrac is the one. But have you ever installed one?
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Old September 29th, 2017, 05:26   #5
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You will likely find more information on LSD into DSG installs by widening your internet searches to not specifically limit TDIs. Because a quick google search just now revealed ALL KINDS of info, videos, pictures, part numbers, etc. for folks putting them in DSG equipped GTIs. Which should be mostly the same thing for your car.
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Old September 29th, 2017, 06:21   #6
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The performance pack Mk7 GTIs come standard with an electronically-controlled LSD. That would probably be a nightmare to source and install though.
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Old September 29th, 2017, 07:16   #7
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Electronically controlled LSD is just the brakes being applied to alternating sides to simulate LSD. Not a true LSD.
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Old September 29th, 2017, 07:25   #8
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Quote:
Originally Posted by Enabled View Post
Electronically controlled LSD is just the brakes being applied to alternating sides to simulate LSD. Not a true LSD.
Incorrect. https://youtu.be/HQqh2Tv5Puc
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Old September 29th, 2017, 07:37   #9
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Nice info.

That's how the 'lesser' electronically controlled LSDs used to work. Which wasn't all that great.

Now I wonder if all this electronic control over the LSD is worth the complication over a simple and very good torsen type LSD, or even the classic clutch pack style.
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Old September 29th, 2017, 08:04   #10
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Quote:
Originally Posted by Enabled View Post
Nice info.

That's how the 'lesser' electronically controlled LSDs used to work. Which wasn't all that great.

Now I wonder if all this electronic control over the LSD is worth the complication over a simple and very good torsen type LSD, or even the classic clutch pack style.
Probably not quite as good, but a no-brainer option on the GTI, when performance pack also comes with larger Golf R brakes (and a minor tune +10 bump in hp), all for $1500.
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Old September 29th, 2017, 11:02   #11
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Of course, how could I have not thought of such a simple solution. Thanks Oilhammer.

Let me add to the madness by asking if it is possible to put in a taller 6th gear? If a DSG is just an automatic manual, why not? Would be great to lower a few hundred RPM on the highway commutes.

If I have the case cracked, I'd want to do it all at once.
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Old September 29th, 2017, 11:17   #12
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I have done one on a DSG worked well .
For any real roadracing it is a must to have a LSD in a front wheel car.
Here is my car last year as the car rolls it will lift the inside wheel so you need all the tires touching driving you forward.


Quote:
Originally Posted by travis45 View Post
I agree that the traction control works well. But after last Sunday at Road America, I realize how much potential isn't hooking up with the track. My guess is that seconds would be shaved off my times with th LSD.

Thanks Mac, yes Wavetrac is the one. But have you ever installed one?
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Old September 29th, 2017, 12:45   #13
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You could look into sourcing the 6th gear from the '15+ DSG TDI as they have a taller ratio than your '14.
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Old September 29th, 2017, 13:35   #14
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Bob,

Is there much difference to this job on a DSG compared to a manual?

Crack case, remove shift forks, remove gears, remove ring gear with differential, drill out rivets, install LSD to ring gear, reassemble?

What about new bearings and checking lash?

Respectfully
Travis



Quote:
Originally Posted by CNGVW View Post
I have done one on a DSG worked well .
For any real roadracing it is a must to have a LSD in a front wheel car.
Here is my car last year as the car rolls it will lift the inside wheel so you need all the tires touching driving you forward.
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Old September 29th, 2017, 15:52   #15
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I did the ring gear work I used a tranny shop to pull it apart I use a lot. He said it was a bear to assemble had to watch a few youtubes to get it right.
On start up made a lot of noise and then did the adaption and it was fine after that.
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