LSD upgrade, any thoughts

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   Eamo

Is the recommendation to change to a 3.64 (40%?) diff so it's better for track use.....or.....better all round in and more in character with the car.? (If you know what i'm trying to say!)

Thanks for the figures 'jpb'

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M3cK Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 13-April-2006 Status: Offline Points: 616	Posted: 17-May-2006 at 12:46
	Eamo Is the recommendation to change to a 3.64 (40%?) diff so it's better for track use.....or.....better all round in and more in character with the car.? (If you know what i'm trying to say!) Thanks for the figures 'jpb'
	'89 E30 M3 Made in Munich

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jpboost Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member I Joined: 24-June-2005 Location: London, GB Status: Offline Points: 292	Posted: 17-May-2006 at 05:59
	My diff rebuild (std) cost me around �150. I'd assume a little bit more (+�50? labour on top of the extra parts) if upgrading to 40% slip rings.

Eamo Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 13-May-2003 Location: Ireland Status: Offline Points: 3450	Posted: 17-May-2006 at 05:24
	Kris Very worthwhile upgrade is changing the diff ratio as well Assuming you have a standard car you will have a 3.25 diff. Change this to a 3.64 and it will make a world of differnece. Thats what I did with my Cecotto.

M3cK Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 13-April-2006 Status: Offline Points: 616	Posted: 16-May-2006 at 16:49
	Snap!
	'89 E30 M3 Made in Munich

M3Kris Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02-January-2006 Location: Belgium Status: Offline Points: 39	Posted: 16-May-2006 at 16:44
	Mine has just over 100k m as well....recent oil change did not improve anything so have to go the rebuilding way.

M3cK Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 13-April-2006 Status: Offline Points: 616	Posted: 16-May-2006 at 16:40
	Just gone 100k (m)
	'89 E30 M3 Made in Munich

M3Kris Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02-January-2006 Location: Belgium Status: Offline Points: 39	Posted: 16-May-2006 at 16:37
	M3CK, I have the wining noise, first when the diff oil was warm, now at all times. In NL and Germany they quote around 300 Euro for rebuilding the standard diff with normal wear. What is the mileage on yours?

M3cK Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 13-April-2006 Status: Offline Points: 616	Posted: 16-May-2006 at 15:03
	M3Kris Is your noise an 'offbeat rotational droning' ? I think mine has got a prob! Does anyone know rough costs for having a standard one rebuilt.?
	'89 E30 M3 Made in Munich

215DMX Members Profile Send Private Message Find Members Posts Add to Buddy List Really Senior Member II Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780	Posted: 16-May-2006 at 14:55
	Drop, JON90 a PM, he's got some 40% slip rings in his. Mine are still sitting on the shelf........

M3Kris Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02-January-2006 Location: Belgium Status: Offline Points: 39	Posted: 16-May-2006 at 12:41
	Hello (e30)M3 race and trackday experts, I am having my diff done because it started making noise. Now my thinking is while they are at it I can as well have it upgraded from 25% to 40% Lslip. But, what would it get me. I use the car for track days and to get to them and for the occasional drift practice. Any thoughts on this? Thx, Kris