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For those who want to refresh their factory LSD.
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I'm thinking of rebuilding my LSD myself, I would like to do the following:
Check all my bearings on play/damage but not replace them if they are ok
Check all the seals but not replace them if they are ok
Use porsche 951 332 551 00 friction disks 2x instead of the worn E30 LSD discs same thickness
Use porsche 917 332 552 12 dog ears 2,1mm 2x instead of the standard 2mm E20 LSD discs
Is this totally plug and play? do i have to check something special? measurements? shims or spacers?
Thanks!
PieterLast edited by tweetyoost; 03-22-2010, 07:10 AM.
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I mean, you should def at least do the diff marker and make sure the teeth still align. From all the articles I've read, unless you mess with the rear pinion, shit shouldn't change and it should be plug and play.
The porsche dog ears are 1.9-2.1mm thick. you picked the 2.1mm ones. They should give you slight mroe lock up. The friction disks would be better from bimmer world as they are actually made for aftermarket application.
Oh yea. replace all the seals you can. it's just cheap insurance.
Status: HG repair. 488wtq though!
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Originally posted by shiboujin View PostI mean, you should def at least do the diff marker and make sure the teeth still align. From all the articles I've read, unless you mess with the rear pinion, shit shouldn't change and it should be plug and play.
The porsche dog ears are 1.9-2.1mm thick. you picked the 2.1mm ones. They should give you slight mroe lock up. The friction disks would be better from bimmer world as they are actually made for aftermarket application.
Oh yea. replace all the seals you can. it's just cheap insurance.
I would pick the 2,1mm plates to have better lockup indeed..
I found a shop in poland (europe) that sells the porsche friction plates and dog ears for around 150 euro (2 x dog ear 2x friction disc) and shipping cost would be cheaper because I live in Belgium.
Would there be so much differents between the bimmerworld aftermarkets and the OEM porsche discs?
Thanks for this helpfull topic!
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I stock metal compound direct fit 188mm LSD 2.0mm Clutch discs if somebody wants better than bimmerworld or porsche (organic). you can do a 4 disc setup. Also 188mm steels in custom thickness-
Also have organic Porsche 2.4MM discs for those who want to get creative and run 2.4mm clutch discs
changing ramp angles must be ground on precision grinder; this is not nearly as easy as thought out to be. Ramps are hardened and cannot be milled traditionally; must be ground. It's cheaper to purchase a BMW motorsports asymetrical center 1.5 way ramp set if you want to go 1.5 way than grinding (and consuming in the learning process) ramps.OBD1 M54/M52TU swap as a M50b25
Z4 non powered steering rack fits e30
Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine
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Since this thread popped back up, an update on this LSD:
I started to notice the locking action starting to go away at an auto-x last fall. Its not gone, but I'm definitely getting some additional inside tire wheelspin while cornering hard.
I suspect that increasing the pre-load with the thicker plates also increases wear. I think I'll end up upgrading to a 3 or 4 disc LSD, or maybe an OS Giken...'91 318is
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