12-24-2013, 10:51 AM
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#1
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Lsd
I saw a post for a "cheap" LSD, was wondering what applications it had for street use. Any insight?
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Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
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12-24-2013, 11:36 AM
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#2
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Registered User
Join Date: Oct 2008
Location: Ohio
Posts: 868
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I used a good bit of LSD in college and would not recommend using it while on the highway.
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12-24-2013, 11:39 AM
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#3
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Registered User
Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,574
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1995 Porsche C4 Cab
2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD
Last edited by Chuck W.; 12-24-2013 at 12:21 PM.
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12-24-2013, 11:54 AM
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#4
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Quote:
Originally Posted by schnellman
I used a good bit of LSD in college and would not recommend using it while on the highway.
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I was waiting for this post.. haha
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
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12-24-2013, 12:18 PM
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#5
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Moderator
Join Date: Feb 2012
Location: DFW
Posts: 782
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Ah nothing like meth injection and having lsd too... 
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12-24-2013, 02:17 PM
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#6
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Rennzenn
Join Date: Feb 2005
Location: Virginia
Posts: 1,369
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Is your price for the complete trans or just the diff? Putting an LSD into the trans is a bit if work... The axle stubs have to be cut down in order to fit.
And to answer your question, the LSD is beneficial in traction challenged situations, such as snow. With both wheels getting power, there's less chance for getting stuck.
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12-24-2013, 02:25 PM
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#7
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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650 for the LSD
I'll have the trans completely out for a clutch and IMS job... so...
I got an indie friend 
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
Last edited by alanqning; 12-24-2013 at 02:27 PM.
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12-24-2013, 02:29 PM
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#8
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Rennzenn
Join Date: Feb 2005
Location: Virginia
Posts: 1,369
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$650 is a great price. Who makes the diff?
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12-24-2013, 02:36 PM
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#9
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Sent ya a message
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
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12-24-2013, 03:13 PM
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#10
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Theoretical propagandist
Join Date: Dec 2011
Location: Pacific Northwest
Posts: 793
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...just stay away from Window Pane and those funky pictures on rice paper...
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When life throws you curves, aim for the apex...
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12-24-2013, 06:42 PM
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#11
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Quote:
Originally Posted by j.fro
Is your price for the complete trans or just the diff? Putting an LSD into the trans is a bit if work... The axle stubs have to be cut down in order to fit.
And to answer your question, the LSD is beneficial in traction challenged situations, such as snow. With both wheels getting power, there's less chance for getting stuck.
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I would think for everyday use in the snow it would not be so good? Just remembering when I had a LSD in a truck in the snow. A simple corner especially with a trailer was a handful.
Maybe if I had the proper snow tires at the time 
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12-25-2013, 04:18 AM
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#12
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Registered User
Join Date: Oct 2008
Location: Ohio
Posts: 868
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Given the power to weight ratio of a Boxster, I believe LSD would introduce some pretty squirrelly behavior on any curve with the least bit of slippery surface.
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12-25-2013, 06:21 AM
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#13
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Registered User
Join Date: Oct 2008
Location: Gilbert, AZ
Posts: 266
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Quote:
Originally Posted by j.fro
The axle stubs have to be cut down in order to fit.
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This is only true on the 6 speed, not on the 5 speed.
IMO, an LSD in a dedicated street car that doesn't see track time is a waste of time. Especially on a base model that doesn't make a whole lot of horsepower.
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12-25-2013, 08:04 AM
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#14
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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I agree, the only time I have inside tire wheelspin issues is some 2nd gear right hand turns, and only for an instant. It wasn't even a problem in an autocross, though that may depend on the course layout.
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12-26-2013, 07:45 AM
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#15
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Well, theres a $650 LSD for sale on the classified section that I was interested in. The car is mostly for street use but I will want to take it on the track a few times.
The LSD would make the car "drift" more easily right?
It seems like the LSD was made for the 2.7 5 speed which I have anyways.
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
Last edited by alanqning; 12-26-2013 at 07:49 AM.
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12-26-2013, 09:57 AM
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#16
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Quote:
Originally Posted by alanqning
Well, theres a $650 LSD for sale on the classified section that I was interested in. The car is mostly for street use but I will want to take it on the track a few times.
The LSD would make the car "drift" more easily right?
It seems like the LSD was made for the 2.7 5 speed which I have anyways.
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LSD will allow the car to over-steer easier however depending on how it locks, unlocks, and what tires you have, it can also have a effect of pushing initially in some turns
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12-26-2013, 09:58 AM
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#17
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Quote:
Originally Posted by healthservices
it can also have a effect of pushing initially in some turns
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What does that mean exactly?
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
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12-26-2013, 11:08 AM
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#18
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Registered User
Join Date: Oct 2009
Location: atlanta
Posts: 57
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Since you are talking about the LSD I have for sale I will add to the discussion. This diff will not lock as hard as say a GT or other clutch type diff. I was going to use it on my ITR car and was setting the car up to not use a big rear bar. I wanted just a little insurance that I was not going to have any wheel spin and to help when I was curb hopping. I have used this diff many times in FWD race cars with good luck. It is a good low cost solution for an LSD for these cars.
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Blake Meredith
Flat 6 Innovations Engine Shop Foreman
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12-26-2013, 11:09 AM
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#19
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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It would be better if someone with the same design LSD chime in to say whether this style does that or not.
Sent from my SAMSUNG-SGH-I317 using Tapatalk
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12-26-2013, 11:24 AM
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#20
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Registered User
Join Date: Dec 2013
Location: Chicago
Posts: 141
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Quote:
Originally Posted by bam914
Since you are talking about the LSD I have for sale I will add to the discussion. This diff will not lock as hard as say a GT or other clutch type diff. I was going to use it on my ITR car and was setting the car up to not use a big rear bar. I wanted just a little insurance that I was not going to have any wheel spin and to help when I was curb hopping. I have used this diff many times in FWD race cars with good luck. It is a good low cost solution for an LSD for these cars.
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Nice to hear from you bam 
I am just wondering about streetability and practicality of your LSD on the street. I know you don't need a LSD for the street, but I'm putting in a performance clutch, flywheel and doing the IMS job so I thought while the transmission is out I might as well put in a LSD. I assume that the LSD will not be worn out during normal street use.
My other question is, what kind of differential is in the stock 986? I keep getting information about transmission oil changes when I search for it.
__________________
Black on Black 2001 Boxster Base
Clutch Masters Stage III Clutch
Luk Flywheel // IMS Retrofit // Rear Main Seal
Last edited by alanqning; 12-26-2013 at 11:28 AM.
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2000 Porsche Boxster
986RS
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