Anyone running an LSD yet?

HP Autosport · 12-18-2008, 10:43 PM

Quote:

Originally Posted by turbobum

HOLY CRAP!! 4k for just a diff?!

It's not just the diff, but a complete Quaife Final Drive Unit.

HP Autosport · 12-18-2008, 10:45 PM

Quote:

Originally Posted by E82TT6

I've been thinking about an HP Autoworks Dif for months. I'm just kinda trying to budget, and I think a good suspension setup might take priority for me. The price is just higher than I'm used to for a LSD solution!

If you have an manual, it's gets very expensive. Automatic guys have it easier, just need the Quaife only and not the complete Quaife Final Drive Unit.

BerkTechnology · 12-18-2008, 11:09 PM

Quote:

Originally Posted by turbobum

HOLY CRAP!! 4k for just a diff?!

It's really BMW's fault that an LSD upgrade costs $3600.

Midway through the production of the 335i final drive units, BMW decided to cut some costs and weld the ring gear to the diff in lieu of bolting the ring gear to the diff. Our 135i's use the same final drive as the 335's.

Some of the early model 335i's out there can just swap their open diff for a Quaife @ $1695 + labor.

For us 135's, we all have the later welded diff units. So you have to buy the Quaife + a complete differential unit = $3595. We priced out what it would cost us to do a custom lockup clutch type LSD. Ready for this one? (see below)

$8500!!

PLUS labor!!! So the Quaife didn't seem so bad afterall. But if you're coming from the Ford camp, $3600 for a diff does seem astronomical.

WAY · 12-19-2008, 12:04 AM

If you want clutch type LSD, why not just go Drexler instead of some custom one?

BerkTechnology · 12-19-2008, 12:36 PM

I couldn't find a dealer in the USA for a Drexler unit. After going with the Quaife from HP, I have zero regrets. Makes for a perfect street/track car.

turbobum · 12-19-2008, 11:19 PM

This car is turning out to be less and less the "ultimate driving machine" The UDM would have something as basic as a LSD...standard.

300hp w/o a limited slip...that's just stupid. While they're at it, why not offer a 3 speed manual, one that shifts on the column! That way they could save the 6-speeds for their precious M cars. It seems the marketing people at BMW have more say than the engineers, which is a shame for a car like this.

HP Autosport · 12-22-2008, 01:43 AM

BMW could have added the LSD, but that will raise the price of the vehicle by at least $2K and will bring the 135i closer to the performace of the M3, not something BMW wants to do.

Mega Man · 01-14-2009, 11:00 PM

Quote:

Originally Posted by HP Autowerks

BMW could have added the LSD, but that will raise the price of the vehicle by at least $2K and will bring the 135i closer to the performace of the M3, not something BMW wants to do.

Great assessment of why our beloved 1ers don't have LSD. This is the first car I've owned without LSD, and I am missing it!

HP Autosport · 01-14-2009, 11:30 PM

Quote:

Originally Posted by Mega Man

Great assessment of why our beloved 1ers don't have LSD. This is the first car I've owned without LSD, and I am missing it!

Is your 135i white?

I think I have seen it running around near the Cerritos Town Center/Library area.

Jockey · 01-14-2009, 11:36 PM

So what's the average cost of labor to install one of these beauties?

Mega Man · 01-15-2009, 12:57 AM

Quote:

Originally Posted by HP Autowerks

Is your 135i white?

I think I have seen it running around near the Cerritos Town Center/Library area.

It is white...but I haven't been around the Town Center or Library since High School! I was thinking about using the Library's parking lot for some pictures...that place is nice when it's empty!

To get back on topic, if BMW made an LSD part that wouldn't potentially void my warranty, I would hop on it right now! In fact, in order of what I want to do with my car (fictional within limits (no flying car) or realistic):
1. LSD
2. Shorter shift throw
3. Suspension
4. Lose some weight

HP Autosport · 01-21-2009, 07:09 PM

Quote:

Originally Posted by Mega Man

It is white...but I haven't been around the Town Center or Library since High School! I was thinking about using the Library's parking lot for some pictures...that place is nice when it's empty!

To get back on topic, if BMW made an LSD part that wouldn't potentially void my warranty, I would hop on it right now! In fact, in order of what I want to do with my car (fictional within limits (no flying car) or realistic):
1. LSD
2. Shorter shift throw
3. Suspension
4. Lose some weight

Those are a good list of mods for your 135i!

CoolToolGuy · 01-22-2009, 10:47 AM

This just in from my installer:

I have a Steptronic, so I have a bolted-on ring gear. However, the bolts are stretch bolts, and they are typically osed only once.

They are burning up the phone lines trying to find the proper bolts. BMW doesn't even list them in their parts system. Hmmmm. . .

I am anxiously waiting to hear from them.

Has anyone run across this issue?

Have Fun,
Rick

12-19-2008, 12:04 AM	#26
WAY Brigadier General 458 Rep 4,822 Posts Drives: Fast ones Join Date: Jul 2007 Location: Melbourne, Australia iTrader: (0)	If you want clutch type LSD, why not just go Drexler instead of some custom one?
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12-19-2008, 12:36 PM	#27
BerkTechnology Lieutenant Colonel 223 Rep 1,565 Posts Drives: Fast Join Date: May 2008 Location: Irvine, CA iTrader: (1)	I couldn't find a dealer in the USA for a Drexler unit. After going with the Quaife from HP, I have zero regrets. Makes for a perfect street/track car.
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12-19-2008, 11:19 PM	#28
turbobum Family Man 14 Rep 126 Posts Drives: White '09 135i Join Date: Oct 2008 Location: Washington State iTrader: (0)	This car is turning out to be less and less the "ultimate driving machine" The UDM would have something as basic as a LSD...standard. 300hp w/o a limited slip...that's just stupid. While they're at it, why not offer a 3 speed manual, one that shifts on the column! That way they could save the 6-speeds for their precious M cars. It seems the marketing people at BMW have more say than the engineers, which is a shame for a car like this. __________________ [SIGPIC][/SIGPIC]
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12-22-2008, 01:43 AM	#29
HP Autosport Supreme Allied Commander 3845 Rep 54,376 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	BMW could have added the LSD, but that will raise the price of the vehicle by at least $2K and will bring the 135i closer to the performace of the M3, not something BMW wants to do.
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01-14-2009, 11:36 PM	#32
Jockey Brigadier General 3451 Rep 4,983 Posts Drives: 992 C4S Join Date: Mar 2008 Location: Park City, UT iTrader: (1)	So what's the average cost of labor to install one of these beauties?
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01-22-2009, 10:47 AM	#35
CoolToolGuy 1er Happy Camper! 27 Rep 474 Posts Drives: '09 135i,'07 X3 Join Date: Oct 2008 Location: Maryland USA iTrader: (0)	This just in from my installer: I have a Steptronic, so I have a bolted-on ring gear. However, the bolts are stretch bolts, and they are typically osed only once. They are burning up the phone lines trying to find the proper bolts. BMW doesn't even list them in their parts system. Hmmmm. . . I am anxiously waiting to hear from them. Has anyone run across this issue? Have Fun, Rick __________________ 2009 135i (E82) Space Gray; Gray Leather; Steptronic w/paddles; Premium; Sport; CA - Dinan: Stage 2 ECU; Cold Air Intake; Oil Cooler; Susp. bushings; Strut Brace. - BMWPerf: Suspension; rotors front & rear; exhaust; grilles; sideskirts; trunk spoiler. BMW 261M wheels w/Sumitomo HTR ZIII. - Quaife: LSD. - Custom Graphics. 2007 X3 - 2002 Pontiac Montana
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