LSD for the F30? - BMW 3-Series Forum (F30 / F32)

utenigma · 12-12-2012, 03:22 PM

Anybody heard/know what WaveTrac's plans are to build a torsen LSD for the F30? Does the F30 have the same horrible ring gear welded to the differential carrier that the 2007+ E90's had?

RSXDC5 · 12-12-2012, 04:33 PM

I would like an answer on this too! The F30's open diff is really a bummer to drive with :/

PGT · 12-12-2012, 05:30 PM

even with 255's in the rear? seriously?

RSXDC5 · 12-12-2012, 09:15 PM

Quote:

Originally Posted by PGT

even with 255's in the rear? seriously?

Coming out of slow speed corners, damp surface, having just your inside tire spinning is no fun, seriously

utenigma · 12-12-2012, 11:24 PM

Quote:

Originally Posted by RSXDC5

Quote:

Originally Posted by PGT

even with 255's in the rear? seriously?

Coming out of slow speed corners, damp surface, having just your inside tire spinning is no fun, seriously

+1

Worse with DTC juddering away trying to fix it

gtastray · 12-12-2012, 11:29 PM

Yeah im wondering in the same thing. LSD is a must for a RWD car.

Bold Vitalic · 12-13-2012, 12:00 PM

Quote:

Originally Posted by utenigma

...Does the F30 have the same horrible ring gear welded to the differential carrier that the 2007+ E90's had?

Sad but yes it does. So the only way is to switch the rear shaft completely?

shivaswrath · 12-13-2012, 02:22 PM

Umm....for manual trannies only, correct?

utenigma · 12-13-2012, 04:27 PM

Quote:

Originally Posted by Bold Vitalic

Sad but yes it does. So the only way is to switch the rear shaft completely?

Post 2007 E9x's wavetrac had a kit where you'd send your dif/ring gear assembly to them, and they'd separate the ring gear from the diff with a CNC machine, then they'd drill and thread it to allow bolt mounting to the wavetrac diff - super fun, like an extra $700 fun or something like that

utenigma · 12-13-2012, 04:43 PM

Quote:

Originally Posted by shivaswrath

Umm....for manual trannies only, correct?

I'd hope they'd offer one for both manual and auto with different gear ratios (being that the final drive ratio's are different between the two)

328i MT - 3.91:1
328i AT - 3.15:1

335 MT - 3.23:1
335 AT - 3.15:1

shivaswrath · 12-13-2012, 04:46 PM

Quote:

Originally Posted by utenigma

I'd hope they'd offer one for both manual and auto with different gear ratios (being that the final drive ratio's are different between the two)

328i MT - 3.91:1
328i AT - 3.15:1

335 MT - 3.23:1
335 AT - 3.15:1

Doubt they'll tweak FG's...that'll impact fuel economy.

Have they ever offered an LSD for auto's? Usually past will dictate outlay for new existing models.

utenigma · 12-13-2012, 05:06 PM

Quote:

Originally Posted by shivaswrath

Doubt they'll tweak FG's...that'll impact fuel economy.

Have they ever offered an LSD for auto's? Usually past will dictate outlay for new existing models.

Yeah, They've got diff's for MT and AT E9X's

http://wavetrac.net/application_bmw335.htm

RSXDC5 · 12-13-2012, 06:38 PM

We need to start emailing wavetrac to begin developing a differential for the F30!

Bold Vitalic · 12-14-2012, 02:24 AM

Quote:

Originally Posted by utenigma

Post 2007 E9x's wavetrac had a kit where you'd send your dif/ring gear assembly to them, and they'd separate the ring gear from the diff with a CNC machine, then they'd drill and thread it to allow bolt mounting to the wavetrac diff - super fun, like an extra $700 fun or something like that

This is quite a money saving approach. Respect to wavetrac if they'll manage to do it the same way for F30

Нere in Moscow the only way available now is to install a complete rear shaft with Quaife diff. The price is 5k$ incl. labor hours.

12-12-2012, 03:22 PM	#1
utenigma Private First Class Drives: 2013 F30 335i 8SA M-Adaptive Join Date: Oct 2012 Location: Dallas, Tx Posts: 197 iTrader: (0) Garage List 2013 BMW 335i Sport ... [4.25] 2001 BMW 330i [5.00]	LSD for the F30? Anybody heard/know what WaveTrac's plans are to build a torsen LSD for the F30? Does the F30 have the same horrible ring gear welded to the differential carrier that the 2007+ E90's had? __________________ My 2013 F30 335i SportLine My 2001 E46 330i Sport - Gone but never forgotten
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12-12-2012, 04:33 PM	#2
RSXDC5 Enlisted Member Drives: 2013 328i M-Sport Join Date: Sep 2012 Location: San Diego, CA Posts: 37 iTrader: (0)	I would like an answer on this too! The F30's open diff is really a bummer to drive with :/ __________________ 2013 Alpine White M-Sport 8spd Sport Auto

12-12-2012, 05:30 PM	#3
PGT Second Lieutenant Drives: 328i M-Sport in Estoril Blue Join Date: Sep 2012 Location: Leesburg, VA Posts: 271 iTrader: (0)	even with 255's in the rear? seriously? __________________ \| '13 328i M Sport - Estoril Blue \| '12 300C SRT8 \| '12 Wrangler Rubi Unlimited - COD MW3 Edition\|

12-12-2012, 11:29 PM	#6
gtastray Enlisted Member Drives: 2013 335i M-sport Join Date: Jun 2012 Location: Hamilton, Canada Posts: 46 iTrader: (0)	Yeah im wondering in the same thing. LSD is a must for a RWD car. __________________

12-13-2012, 02:22 PM	#8
shivaswrath Lieutenant Colonel Drives: 2012 335i Join Date: Apr 2008 Location: Norwalk CT Posts: 1,971 iTrader: (2)	Umm....for manual trannies only, correct? __________________ 2012 335i Mineral Gray M Performance Whore: PPK\|Exhaust\|Brakes\|Performance Suspension Struts & Springs\|Black Kidney Grilles\|CF Spoiler and Mirror Caps\|M Sport 400M\|BMWF30.com 335i brakes FS!

12-13-2012, 06:38 PM	#13
RSXDC5 Enlisted Member Drives: 2013 328i M-Sport Join Date: Sep 2012 Location: San Diego, CA Posts: 37 iTrader: (0)	We need to start emailing wavetrac to begin developing a differential for the F30! __________________ 2013 Alpine White M-Sport 8spd Sport Auto

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