 L.S..D., Who has it and what does it do?? |
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 Mar 25, 2005 - 8:07 AM
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 Enthusiast  Joined Jan 1, '05 From rapid city, SD Currently Offline Reputation: 0 (0%)  |
Simple and general question.......what is a limited slip diff, what does it do, and who has it??
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Mar 25, 2005 - 8:29 AM
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 Enthusiast Joined Nov 24, '04 From Moscow, russia Currently Offline Reputation: 0 (0%) |
i have it !
but as i have a '4' i'm not sure what help it will be to you.... as i under stand, it work by, if a wheel starts to spin on say snow, power is reduced to that wheel therefore allowing the wheels with grip to work it also help reduce excesive wheel spin and burning rubber on the street. but hey this is how i understand that it work, i'm sure the tec' guys on site will give you more and better info when they wake up 
--------------------  Life is for living, and you don't get a second chance Take care now !! |
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Mar 25, 2005 - 9:59 AM
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Enthusiast Joined Jan 17, '04 From Illinois Currently Offline Reputation: 0 (0%) |
The nice thing about LSD on a FF drive application is that it dramatically reduces torque steer. Since you have an ST, and assuming you do not have a turbo or other performance modifications, you will notice no difference except in slippery conditions.
-------------------- QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback] i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this. |
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Mar 25, 2005 - 10:45 AM
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 Enthusiast Joined Feb 10, '03 From Connecticut Currently Offline Reputation: 11 (100%) |
But what it does is distribute power evenly to both left and right wheels. You may think this already happens, but nay nay. Power goes to one wheel first, then the other. This is why you get torque steer.
It also helps in cornering, because in a normal transmission, the inner wheel moves less than the outter wheel. With LSD, they both move the same, so cornering is made easier. -------------------- |
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Mar 25, 2005 - 11:43 AM
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 Enthusiast Joined Feb 19, '04 From austin tx Currently Offline Reputation: 1 (100%) |
The inner wheel moves less in either case, hence the name "differential." The limited slip differential uses clutches or fluid that engage when one wheel is spinning considerably faster than the other, so that more power is transferred to the wheel with traction.
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Mar 25, 2005 - 11:50 AM
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Enthusiast Joined Jan 17, '04 From Illinois Currently Offline Reputation: 0 (0%) |
QUOTE(mikew04 @ Mar 25, 2005 - 11:43 AM) The inner wheel moves less in either case." [right][snapback]262193[/snapback][/right] A good way to think about this is that if you turned the wheel all the way to the right and did a circle with the car, the circle made with the passenger side wheels would be smaller than the circle made with the driver side wheels. Therefore, the driver side wheels must travel farther regardless if you have LSD or not. That is why its called a "Limited" slip differential. If it didn't allow the differential to slip at all, you would bounce going around corners and turning would be very hard. -------------------- QUOTE(lagos @ Jul 10, 2006 - 1:55 PM) [snapback]454118[/snapback] i know your trying to do the right thing for your motor, but this is one of those times where you should just trust the guys who have had their swaps for a while and have done a ton of research into this. |
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Mar 25, 2005 - 12:59 PM
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 Enthusiast Joined Sep 28, '03 From Bloomington, IN Currently Offline Reputation: 0 (0%) |
I have LSD. Typically when I take it I sorta freak out and see bats. I call it bat country.
-------------------- NASA/SCCA RX-7....currently under the knife
92 Civic hatch B16 - Sold 10th anniv RX-7 - RIP The Slow Celica - Sold...and then crushed crushed due to street racing. Quote from Seinfeild: George's Boss reading a magazine: "People magazine's most beautiful people. Oh and a Celica...nothin wrong with that!" |
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Mar 26, 2005 - 1:50 AM
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Enthusiast Joined Feb 19, '04 From austin tx Currently Offline Reputation: 1 (100%) |
one toke. you poor fool. wait till you see those Godd*mn bats.
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Mar 26, 2005 - 2:42 AM
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 Enthusiast Joined Sep 17, '03 From Tampa FL Currently Offline Reputation: 1 (100%) |
well how the !@#$ do you know if you hav it? GT ST? where to look?
-------------------- -97 Celica ST
-2001 Celica GTS dk blue mica 100hp per litre (GOT LIFT?) |
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Mar 26, 2005 - 9:17 AM
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Enthusiast Joined Jan 1, '05 From rapid city, SD Currently Offline Reputation: 0 (0%) |
so basically there is no point in having it, if your car isnt putting out enough torque? Right?
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Mar 26, 2005 - 11:48 AM
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 Enthusiast Joined Dec 16, '02 From Cincinnati, Ohio Currently Offline Reputation: 0 (0%) |
QUOTE well how the !@#$ do you know if you hav it? GT ST? where to look? Our cars did not come with LSD. |
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Mar 26, 2005 - 2:26 PM
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 Enthusiast Joined Mar 17, '05 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
As opposed to a Torsen (TORque SENsing) diff which actually transfers power to the wheel with most grip. IIRC, doesn't the GT-FOUR have a Torsen diff at the rear?
Gary --------------------  1994 ST205 Celica GT-FOUR Group A WRC - running in new engine 1993 Rover 220 GTi tarmac rally car (under construction) 3SGE power here we come.... GT-Four spec list |
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Mar 26, 2005 - 4:57 PM
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Enthusiast Joined Sep 28, '03 From Bloomington, IN Currently Offline Reputation: 0 (0%) |
QUOTE(4wheelWOnder @ Mar 26, 2005 - 2:17 PM) so basically there is no point in having it, if your car isnt putting out enough torque? Right? [right][snapback]262485[/snapback][/right] Everyone always disagrees with me on this one. I like em, would love to have one. Now, our cars are under powered but we can still benifet from having one. Winter would be a lot easier on you and your car would give you more thrills when driving it. But for the price.....I dunno.... -------------------- NASA/SCCA RX-7....currently under the knife
92 Civic hatch B16 - Sold 10th anniv RX-7 - RIP The Slow Celica - Sold...and then crushed crushed due to street racing. Quote from Seinfeild: George's Boss reading a magazine: "People magazine's most beautiful people. Oh and a Celica...nothin wrong with that!" |
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Mar 26, 2005 - 7:30 PM
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 Enthusiast Joined Nov 8, '02 From New Zealand Currently Offline Reputation: 0 (0%) |
QUOTE(GT4WRC @ Mar 27, 2005 - 8:26 AM) As opposed to a Torsen (TORque SENsing) diff which actually transfers power to the wheel with most grip. IIRC, doesn't the GT-FOUR have a Torsen diff at the rear? Gary [right][snapback]262550[/snapback][/right] This link has good info on the GT-Four diffs as well as definitions explaining how they work. --------------------  |
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Mar 27, 2005 - 5:13 AM
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 Enthusiast Joined Mar 6, '03 From South Central Los Angeles and Long Beach, CA Currently Offline Reputation: 1 (100%) |
I'm not sure but did i read that if we add an LSD to our stock tranny usually its good for a little bit more HP? I'm looking at building my 3s up to about 300hp and I already know the e153 would be the best choice off the bat, but would the stock tranny (s54) w/ LSD handle it?
Soon to be Boosted, David This post has been edited by ToYCeLi8: Apr 2, 2005 - 5:57 AM |
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Mar 27, 2005 - 12:59 PM
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 Enthusiast Joined Dec 27, '03 From Nor Cal Currently Offline Reputation: 0 (0%) |
QUOTE(ToYCeLi8 @ Mar 27, 2005 - 10:13 AM) I'm not sure but did i read that if we add an LSD to our stock tranny usually its good for a little bit more HP? I'm looking at building my 3s up to about 300hp and I already know the e153 would be the best choice off the bat, but would the stick tranny (s54) w/ LSD handle it? Soon to be Boosted, David [right][snapback]262758[/snapback][/right] E153 LSD will NOT fit in the S5x trannies. The diffs are totally different and there is no way to make it work. For the most part... if you don't know what an LSD is and what it does... you DOn't need an LSD... -------------------- "It's ok to be naked girl... I'm an artist!"
1995 AT200 Celica ST: stocked out daily driver... 1984 AE86 Corolla GT-SR5: silvertop 20V 4AGE project car jacked up with goodies... 1991 SW2x MR2 n/a: bare bones hardtop model soon to be... |
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Mar 28, 2005 - 5:26 AM
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 Enthusiast Joined Nov 16, '04 From UK Currently Offline Reputation: 0 (0%) |
Neo, good link man. Thanks.
QUOTE(mikew04 @ Mar 25, 2005 - 11:43 AM) The inner wheel moves less in either case, hence the name "differential." The limited slip differential uses clutches or fluid that engage when one wheel is spinning considerably faster than the other, so that more power is transferred to the wheel with traction. [right][snapback]262193[/snapback][/right] Yup. Think of it this way. Jack the car up, clamp the left front wheel and attach a something that measures torque to it. Turn the car on and engage first. The front right will spin away in space. The front left wil register virtually no force at all. Power will go to the easiest wheel to spin. This is bad when you have one wheel on tarmac, and one on gravel. Or, you're in a hairpin and the inside wheel is light - which is why you will spin all the power away. LSD tries to stop this, by Limiting the amount of difference between the wheels. Obviously it has to allow enough for the car to go around corners....... -------------------- JDM ST205
Blitz Spec NUR Exhaust, somewhere over $1000 Needing another one 18000 miles later, bloody annoying. |
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Apr 2, 2005 - 6:05 AM
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Enthusiast Joined Mar 6, '03 From South Central Los Angeles and Long Beach, CA Currently Offline Reputation: 1 (100%) |
QUOTE(Kwanza26 @ Mar 27, 2005 - 10:59 AM) QUOTE(ToYCeLi8 @ Mar 27, 2005 - 10:13 AM) I'm not sure but did i read that if we add an LSD to our stock tranny usually its good for a little bit more HP? I'm looking at building my 3s up to about 300hp and I already know the e153 would be the best choice off the bat, but would the stick tranny (s54) w/ LSD handle it? Soon to be Boosted, David [right][snapback]262758[/snapback][/right] E153 LSD will NOT fit in the S5x trannies. The diffs are totally different and there is no way to make it work. For the most part... if you don't know what an LSD is and what it does... you DOn't need an LSD... [right][snapback]262824[/snapback][/right] Oh i know that the E153 LSD will NOT fit the S5X tranny. My question was if by adding the LSD to our stock S5X tranny will that give it a little more strength to hold about 300whp? I know that the GT tranny is good for about 250hp that is my concern before blowing mine and having to go through the hastle of upgrading. Soon to be Boosting, David |
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Apr 2, 2005 - 1:29 PM
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Enthusiast Joined Dec 27, '03 From Nor Cal Currently Offline Reputation: 0 (0%) |
[quote=ToYCeLi8,Apr 2, 2005 - 11:05 AM]
[quote=Kwanza26,Mar 27, 2005 - 10:59 AM][quote=ToYCeLi8,Mar 27, 2005 - 10:13 AM] For the most part... if you don't know what an LSD is and what it does... you DOn't need an LSD... [right][snapback]262824[/snapback][/right] [/quote] Oh i know that the E153 LSD will NOT fit the S5X tranny. My question was if by adding the LSD to our stock S5X tranny will that give it a little more strength to hold about 300whp? I know that the GT tranny is good for about 250hp that is my concern before blowing mine and having to go through the hastle of upgrading. [right][snapback]265596[/snapback][/right] [/quote] LSD has nothing to do with strength... it's all about traction... -------------------- "It's ok to be naked girl... I'm an artist!"
1995 AT200 Celica ST: stocked out daily driver... 1984 AE86 Corolla GT-SR5: silvertop 20V 4AGE project car jacked up with goodies... 1991 SW2x MR2 n/a: bare bones hardtop model soon to be... |
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