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      12-13-2010, 07:03 PM   #1
335coupe2007
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LSD on a Automatic 335

Hey guys.. I am stuck....and in a dilemma right now. I have a Dinan stage 2 tune in my car and AFE DCI as far as upgrades go with 34k on the car. I was looking to do some more upgrades and I am not sure what to do. First to explain my driving habits-- I do not drive it like I just stole it.. LOL. I mean every once in a while i hit my 140mph on I-95 but its not a regular occurrence for me at all... I will NEVER track my car.. NEVER... I just like to have it to play with every once in a while..u know what i mean?

I was looking at an exhaust... but that kinda died down. I then got reallllllllllly super interested in a LSD.. I started doing all kinds of research and I was about to decide between a OS GIKEN and Quaife-- UNTIL TODAY!!!!!!!!. I called a company and the sales person told me that getting an LSD on an automatic 335 unless I drive it really, really hard all the time is pointless and waste of money-- While i appreciated his honesty b/c he couldve filled my head with a bunch of B.S-- it made me think, damn, is it really that pointless to get an LSD in my car r if a SALES PERSON IS WILLING TO GIVE UP A SALE??

Does anyone with an AUTOMATIC 335, 2007 have an LSD installed and what is your opinion on this?

PLEASE give me constructive feedback... Thanks in advance.

Shawn
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      12-13-2010, 07:09 PM   #2
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people that get LSD usually get it for track use. i mean, you will get benefit out of it on the street and get more consistant launch since there is less slippage. if you don't push the car all that much, i would suggest using that money for other supporting mods first. Like get FMIC, DP, Meth, coilover, dv/bov or aesthetics.

point is, LSD is good, but from what i understand you won't get full benefit of having one unless you track and drive your car hard.
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      12-13-2010, 07:14 PM   #3
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you really don't need an LSD if your main purpose is for spirited driving. It would just be a big waste of money. Your first idea of an exhaust would have been better IMO.
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      12-13-2010, 07:20 PM   #4
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if lived in an area that had curvy hilly roads than the LSD would make sense. just going straight, eh not so much. I still think its good to have....especially to do 2 wheel burnouts!
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      12-13-2010, 07:21 PM   #5
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+1 imo I doubt itll be worth the money for your style of driving...
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      12-13-2010, 07:22 PM   #6
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I think the ZF transmissions have a very similar ratio to most aftermarket LSDs as well.
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      12-13-2010, 07:22 PM   #7
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Quote:
Originally Posted by Bimmer This View Post
you really don't need an LSD if your main purpose is for spirited driving. It would just be a big waste of money. Your first idea of an exhaust would have been better IMO.
THanks!! i appreciate the feedback!!! Make sense
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      12-13-2010, 07:25 PM   #8
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It seems from your post that you really don't need an LSD. If you never get track time, if you never push the car, if you never get sideways, if you never get massive amounts of HP, then you really don't need the LSD. You are talking yourself out of it. Save the money.
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      12-13-2010, 07:30 PM   #9
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Quote:
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It seems from your post that you really don't need an LSD. If you never get track time, if you never push the car, if you never get sideways, if you never get massive amounts of HP, then you really don't need the LSD. You are talking yourself out of it. Save the money.
Appreciate the feedback man. I really do. Thanks alot. This posting was very important to me so again.. thank you!!
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      12-13-2010, 07:32 PM   #10
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Appreciate the feedback man. I really do. Thanks alot. This posting was very important to me so again.. thank you!!
But let me warn you, once you do get into a 335i with an LSD, you will want to throw your car around and change your driving habit. It is also beneficial if you live in bad weather climates because the car is more predictable. Just food for thought.
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      12-13-2010, 08:23 PM   #11
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So driving habits aside, is there a difference between LSD in 6MT vs 6AT like he said?
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      12-13-2010, 08:53 PM   #12
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Quote:
Originally Posted by 335coupe2007 View Post
Does anyone with an AUTOMATIC 335, 2007 have an LSD installed and what is your opinion on this?

PLEASE give me constructive feedback... Thanks in advance.

Shawn
LSD on my "AMT" 335i 2007 Coupe is the last thing to be done after Dinan S3 all around. If I was you since you started with the Dinan S2 flash is to continue in piece meal if you dont have the money to do everything all at the same time. You started with Dinan end it with Dinan.

I think "progresively" building your car is the best way to go though. This way each component breaks in the drivetrain properly and the car becomes more adpative to each new component you add as time passes.

There is not a day that goes by that I dont take my car over 100 MPH on I-95, and I do alo of pickup races passing through your area and Miami. So, LSD will help out alot on my end.

Never know, I may have passed you on I-95 and you probably thought I was nuts

Last edited by BuraQ; 12-13-2010 at 09:04 PM.
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      12-13-2010, 09:12 PM   #13
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I think a LSD is more for someone who is going to track their car. I mean, you get an lsd if you're looking to have better launches, or if you're trying to drift. Not a very street-useful application. A lot like drag radials are used for the drag strip, while street tires are used for the street
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      12-14-2010, 12:14 AM   #14
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I have an 08 Auto and am looking at buying one. But I drive canyons and go sideways a lot. Plus a race track is only 10 miles from me. I just need to find time.
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      12-14-2010, 04:26 AM   #15
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A LSD is good if you want to decrease DSC / DTC intervention. Occasionally, I get tired of stability control cutting off power and feeling those few milliseconds where the throttle pedal is "dead" but at the same time, I don't want to disable DTC when I'm literally inches away from the mountain wall. By getting power down better, a LSD should increase the tolerance to lighting the dashboard up.
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      12-14-2010, 08:42 PM   #16
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Quote:
Originally Posted by corb View Post
I think a LSD is more for someone who is going to track their car. I mean, you get an lsd if you're looking to have better launches, or if you're trying to drift. Not a very street-useful application. A lot like drag radials are used for the drag strip, while street tires are used for the street
Errrr... Sorry dude. Completely untrue. Yes ok, an LSD is nice for launching and drifting but there is a much larger benefit. Cars with a lot of torque will spin the inside tire while cornering. Drive a 350z with and without the LSD. Base models did not have the LSD. The difference is staggering. It has a stiff rear sway bar so any cornering would take too much load off the inside rear. Also, a car with a gear type LSD wil actually turn it harder with an LSD. Drive a Civic Si. It's actually handles great. There are plenty of street cars with LSDs. It is mostly for performance cars but it's not only for the track.

OP, the LSD would really help you if you have trouble with wheelspin while cornering. If you install a rear sway or get aftermarket software you might find a use for it. Also that salesman you were talking to is a complete idiot for 2 reasons. One: he totally blew a sale to someone who was ready to buy. Two: having a automatic tranny has NOTHING to do with an LSD. Maybe you do t need a LSD because of the way you drive but not because of the tranny you chose.
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