3.91 LSD Brand New

BGR · 07-11-2015, 12:45 PM

BIMMERPOST / Classifieds

Asking Price:

USD 2,000.00

Or Best Offer

Shipping Costs Included

Location:

✓ Will Ship

Item Interest

Had this diff built by Jim Blanton for my 3.0si track car but ended up picking up a Cayman S before ever having it installed. 30/90 locking with 3.91 ratio. If I can track down the brand new center support bearing that will be included as well.

$2,500 PayPal/shipped. Take $100 off if you are local to Minnesota and can pick up this 100lb beast.

seank · 07-11-2015, 05:16 PM

Nice addition to a supercharger.

Twixboy · 07-12-2015, 04:10 PM

Whoa, you only had your 3.0si coupe for a couple months. Didn't like the electronic steering?

BGR · 07-12-2015, 04:37 PM

Quote:

Originally Posted by Twixboy

Whoa, you only had your 3.0si coupe for a couple months. Didn't like the electronic steering?

Bought a Cayman S and couldn't justify having both. Although I already miss the Z.

BGR · 08-28-2015, 03:22 PM

Bump. I would like to get this sold, so my plan is to reduce the price at least $25 every day, Dutch auction style. Of course, if you don't want to wait, you can also make me an offer. The price includes shipping.

$2,400

pokeybritches · 08-28-2015, 03:30 PM

Do you have any additional specs? Static lock, number of clutches, Z4 finned cover, etc.?

BGR · 08-28-2015, 03:36 PM

Good questions.

No finned cover on the back (use your old one. Jim said the covers tend to get damaged in shipping)

30/90 ramp angles

Heavier gear was able to be used in this ratio to provide better longevity

BGR · 08-28-2015, 03:39 PM

I just went on Turner's website and built a similar diff and it was $4k...

3002 tii · 08-28-2015, 05:13 PM

I'd be all over if this was a 3.64 or 3.73

3.91 wouldn't work well on the tracks I frequent the most but I bet this is a blast during auto-x

BGR · 08-28-2015, 05:48 PM

Quote:

Originally Posted by 3002 tii

I'd be all over if this was a 3.64 or 3.73

3.91 wouldn't work well on the tracks I frequent the most but I bet this is a blast during auto-x

I can't remember if it was you or another member that used a program to calculate the best ratio for my car around Road America. The best was 3.73 I believe, but the 3.91 was only a couple hypothetical tenths slower. It meant a few more shifts but not a huge disadvantage. Maximum calculated speed with the 3.91 is about 148 mph.

3002 tii · 08-28-2015, 08:25 PM

Quote:

Originally Posted by BGR

I can't remember if it was you or another member that used a program to calculate the best ratio for my car around Road America. The best was 3.73 I believe, but the 3.91 was only a couple hypothetical tenths slower. It meant a few more shifts but not a huge disadvantage. Maximum calculated speed with the 3.91 is about 148 mph.

Was not me but I too would've gone for a 3.73 but they're so hard to come by. And the cost to go from 3.46 to 3.64 wasn't worth it so I just kept stock gearing when I installed the Quaife.

BGR · 08-29-2015, 09:32 AM

Quote:

Originally Posted by 3002 tii

Quote:

Originally Posted by BGR

I can't remember if it was you or another member that used a program to calculate the best ratio for my car around Road America. The best was 3.73 I believe, but the 3.91 was only a couple hypothetical tenths slower. It meant a few more shifts but not a huge disadvantage. Maximum calculated speed with the 3.91 is about 148 mph.

Was not me but I too would've gone for a 3.73 but they're so hard to come by. And the cost to go from 3.46 to 3.64 wasn't worth it so I just kept stock gearing when I installed the Quaife.

Fair enough. The 3.91 is only 5% shorter than 3.73 over stock. If the price gets low enough it might be worth a try.

$2,350 shipped

3002 tii · 08-29-2015, 02:23 PM

Quote:

Originally Posted by BGR

Fair enough. The 3.91 is only 5% shorter than 3.73 over stock. If the price gets low enough it might be worth a try.

$2,350 shipped

Find me a buyer for my Quaife 3.46 and I would consider yours lol

BGR · 08-31-2015, 01:08 PM

$2,250 shipped.

BGR · 09-04-2015, 10:42 AM

$2,200

BGR · 09-09-2015, 05:40 AM

$2,100

seank · 09-09-2015, 11:12 PM

Crazy this has not sold. Cheap, inexpensive, dependable hp

BGR · 09-23-2015, 09:04 PM

Bump. $2k shipped.

BGR · 10-22-2015, 01:52 PM

Forgot I had this until I was cleaning out the garage. $2k shipped.

NickyC · 10-22-2015, 04:14 PM

Quote:

Originally Posted by BGR

Forgot I had this until I was cleaning out the garage. $2k shipped.

Baller.

Steeler · 10-22-2015, 04:29 PM

PM sent

BGR · 10-22-2015, 05:06 PM

Quote:

Originally Posted by NickyC

Quote:

Originally Posted by BGR

Forgot I had this until I was cleaning out the garage. $2k shipped.

Baller.

Haha

07-11-2015, 12:45 PM	#1
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	3.91 LSD Brand New BIMMERPOST / Classifieds Asking Price: USD 2,000.00 Or Best Offer Shipping Costs Included Location: ✓ Will Ship Item Interest Had this diff built by Jim Blanton for my 3.0si track car but ended up picking up a Cayman S before ever having it installed. 30/90 locking with 3.91 ratio. If I can track down the brand new center support bearing that will be included as well. $2,500 PayPal/shipped. Take $100 off if you are local to Minnesota and can pick up this 100lb beast. Last edited by BGR; 10-22-2015 at 01:53 PM..
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07-11-2015, 05:16 PM	#2
seank enthusiast 48 Rep 1,695 Posts Drives: e30 m3,e90 wagon,sprinter,z4m Join Date: Dec 2011 Location: sacramento, ca iTrader: (4)	Nice addition to a supercharger.
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07-12-2015, 04:10 PM	#3
Twixboy Captain 124 Rep 904 Posts Drives: '04 Z4 3.0i 6spd Join Date: Mar 2015 Location: MA iTrader: (2)	Whoa, you only had your 3.0si coupe for a couple months. Didn't like the electronic steering?
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08-28-2015, 03:22 PM	#5
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Bump. I would like to get this sold, so my plan is to reduce the price at least $25 every day, Dutch auction style. Of course, if you don't want to wait, you can also make me an offer. The price includes shipping. $2,400
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08-28-2015, 03:30 PM	#6
pokeybritches Colonel 479 Rep 2,782 Posts Drives: ESS/G-Power Z4M, VF Z4, 996tt Join Date: Sep 2009 Location: Los Angeles iTrader: (12) Garage List 2006 BMW Z4M [10.00] 2006 BMW Z4M [8.50] 2003 BMW Z4 3.0i [9.00]	Do you have any additional specs? Static lock, number of clutches, Z4 finned cover, etc.? __________________ VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
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08-28-2015, 03:36 PM	#7
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Good questions. No finned cover on the back (use your old one. Jim said the covers tend to get damaged in shipping) 30/90 ramp angles Heavier gear was able to be used in this ratio to provide better longevity
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08-28-2015, 03:39 PM	#8
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	I just went on Turner's website and built a similar diff and it was $4k...
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08-28-2015, 05:13 PM	#9
3002 tii Lieutenant General 2282 Rep 12,565 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.22]	I'd be all over if this was a 3.64 or 3.73 3.91 wouldn't work well on the tracks I frequent the most but I bet this is a blast during auto-x __________________ Follow for latest mods
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08-31-2015, 01:08 PM	#14
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	$2,250 shipped.
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09-04-2015, 10:42 AM	#15
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	$2,200
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09-09-2015, 05:40 AM	#16
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	$2,100
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09-09-2015, 11:12 PM	#17
seank enthusiast 48 Rep 1,695 Posts Drives: e30 m3,e90 wagon,sprinter,z4m Join Date: Dec 2011 Location: sacramento, ca iTrader: (4)	Crazy this has not sold. Cheap, inexpensive, dependable hp
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09-23-2015, 09:04 PM	#18
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Bump. $2k shipped.
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10-22-2015, 01:52 PM	#19
BGR Captain 518 Rep 788 Posts Drives: C7 GS 7MT; e90 M3 6MT Join Date: Nov 2013 Location: Midwest iTrader: (1)	Forgot I had this until I was cleaning out the garage. $2k shipped.
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10-22-2015, 04:29 PM	#21
Steeler Colonel 2428 Rep 2,704 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	PM sent __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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