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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 10-18-2011, 07:11 PM   #221
tinkwithanr
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Lol, let me know if that ever works Brady, I might start trying it on the local forums.

I did end up tearing into the e46 lsd I purchased this past summer. Sadly the seller failed to mention his real reason for removing it from the car, and upon closer inspection the inner spider gears are marked and pitted. I would guess he grenaded it, opened it up to clean it and then put it back together. Oh well, life goes on. I haven't lost hope that someone will come in here one day and have the perfect solution.
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Old 08-31-2015, 01:30 AM   #222
Taper
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Quote:
Originally Posted by JimmyOberg View Post
This is one way to get a LSD E46 non-m.

E30 188 diff vs E46 diff.


E36 Diff cover


These are also from E36, And fits fine with the E30 diff and E46 halfshafts.


New mounting brackets...




Then I guess you're ready to go.


Is necessary to make an adapter to fit e46 6 bolts driveshaft to e30 4 bolts input joke?
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Old 09-01-2015, 08:03 PM   #223
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Originally Posted by Taper View Post
Is necessary to make an adapter to fit e46 6 bolts driveshaft to e30 4 bolts input joke?
Some e46 drive shafts are 6bolt. The 330i and maybe some others.

Did you do this? Wondering if the axle widths turn out the same. If so I may have to do this. I'm sick of an open diff.
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Old 09-01-2015, 08:40 PM   #224
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IMO, what I think you guys are missing is the fact that by the time you do ALL of the mods required to make this work you could have bought a Wavetrac LSD for about ~$1155.

http://forum.e46fanatics.com/showthr...096&highlight=



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !

Last edited by Rob43; 09-01-2015 at 09:31 PM.
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Old 09-02-2015, 05:11 AM   #225
Thaniel
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IMO, what I think you guys are missing is the fact that by the time you do ALL of the mods required to make this work you could have bought a Wavetrac LSD for about ~$1155.

http://forum.e46fanatics.com/showthr...096&highlight=



Rob43
Thanks for the info. Might help some. But for me Not missing that at all.

First the $1155 is only for the guts. Still have to pay or do the installation.to. If one has fabrication skills and equipt, the e30 mods could be done for probably $500 total and might be easier than rebuilding the e46 diff with the new guts.

2nd the wavetrac is not a friction LSD like the e30 diff is. I've had some other style LSD in other cars and didn't like them.

3rd I may be missing something but wavetrac doesn't claim to be a LSD. At least I don't see them ever say that on their website. It's design appears to be more of a locker. Which for racing or off roaring might be great. But not suitable for my driving.


What I think many people are missing is that for about $1k one can buy a m3 LSD rear assembly and fit that into an e46. There are brake issues to examine and for 4bolt driveshafts cars the diff flange or driveshaft needs to be changed, but it is a cheap oem feel diff. Bit again not a friction diff. But has some tricks that might help it perform better. Haven't driven a car with one. So can't say.
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Old 09-02-2015, 07:57 AM   #226
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Differential Housing Question

The wavetrac is a Torsen type lsd that also has a system to stop the power going to one side if the wheel is unloaded(the torsens main flaw). So, in the end, it works similarly to a clutch type lsd, except it creates less understeer on entry.

Badass project you have going here though
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Last edited by Pole position; 09-02-2015 at 08:00 AM.
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Old 09-02-2015, 01:26 PM   #227
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Quote:
Originally Posted by Thaniel View Post
Thanks for the info. Might help some. But for me Not missing that at all.

First the $1155 is only for the guts. Still have to pay or do the installation.to. If one has fabrication skills and equipt, the e30 mods could be done for probably $500 total and might be easier than rebuilding the e46 diff with the new guts.

2nd the wavetrac is not a friction LSD like the e30 diff is. I've had some other style LSD in other cars and didn't like them.

3rd I may be missing something but wavetrac doesn't claim to be a LSD. At least I don't see them ever say that on their website. It's design appears to be more of a locker. Which for racing or off roaring might be great. But not suitable for my driving.

What I think many people are missing is that for about $1k one can buy a m3 LSD rear assembly and fit that into an e46. There are brake issues to examine and for 4bolt driveshafts cars the diff flange or driveshaft needs to be changed, but it is a cheap oem feel diff. Bit again not a friction diff. But has some tricks that might help it perform better. Haven't driven a car with one. So can't say.

I guess you'll need to figure this all out for yourself then, as this subject of which is better has been Beaten to death over the years. Based on my lengthy SCCA racing experience it will always be my opinion that a Gear type LSD = DD & a Clutch pack LSD = Track.



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SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 09-14-2015, 10:40 AM   #228
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Quote:
Originally Posted by Rob43 View Post
I guess you'll need to figure this all out for yourself then, as this subject of which is better has been Beaten to death over the years. Based on my lengthy SCCA racing experience it will always be my opinion that a Gear type LSD = DD & a Clutch pack LSD = Track.
Rob43
Some people know from driving on the track; others just speculate about things

GEAR TYPE DIFFERENTIAL = GROCERY STORE A++
CLUTCH TYPE DIFFERENTIAL = CIRCUIT USE

installing random e30 LSD from 1989.......any one feel like trusting a 26 YEAR OLD differential?
I'm sure all of them at the junkyard had only like 20k miles of 0 abuse over those 26 years.
Im sure it will be GREAT to add an LSX of power to; very cheap to rebuild also (not really at all)
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Last edited by wanganstyle; 09-14-2015 at 10:43 AM.
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