LSD. Whats does it do. (know very little about it)

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x_okami_x

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hanging_mickey
i have a little knowledge about it. but frankly i would consider my self a total dummbas when it comes to the LSD.

how does it affect drifting.

i read dat the initial torque affects how fast the other two work.
and accelaration affects how much u "slide" while accelerating
and braking sensetivity affects how much u slide while u let go of the pedal/acceleration.

is that at least a little true?
 
The yellow button on top of the LSD settings in your "settings" menu gives a good explanation how the LSD works.

and also tells you what kind of an effect high or low settings will produce.
I think you'll gain a good understanding by just reading through that and experimenting.

If theres something there you cant quite understand, im sure people here will be more than willing to help out.
 
When you increase acceleration bar, the higher it is, the more traction the wheels will retain during acceleration, but the more understeer will become prominent. So if you have a car that over steers and spins out due to too much low end tourque, increase this. The braking does same thing I think, but for during braking instead of acceleration.
 
If you do a search, you'll find lots of threads talking about how an LSD works. Scaff has a good tuning guide for GT4 that explains how an LSD works along with the game's LSD settings. Even though it was for GT4, same theory applies to GT5:

Just click on the link to the guide that includes LSD: https://www.gtplanet.net/forum/showthread.php?t=135268

There are a couple other threads that explain the LSD in various detail. For all of them, do a search here or on Google, there's just way too many to list. Here are a couple:

https://www.gtplanet.net/forum/showthread.php?t=167077
https://www.gtplanet.net/forum/showthread.php?t=66142

Also, I would recommend that you capitalize your sentences, along with not using textspeak here before you get warned from the moderating staff. Improper grammar is frowned upon here and is against the AUP anyways.
 
It gives you psychedelic trip. Mostly a bad one though.
"Haaaave you eeever beeeen....have you ever beeen...to eleectric ladylaand...~~"
 
defaultoasis
It gives you psychedelic trip. Mostly a bad one though.
"Haaaave you eeever beeeen....have you ever beeen...to eleectric ladylaand...~~"
Click to expand...

And your teacher knows everything! :)
It is a psychoactive drug that might be good for pain relief or as part of psychotheraphy, but the ban on it caused by the recreational use with high dosages has hampered the research on the substance. :p
 
Why I only have to copy and paste it:

Limited Slip Differential

The differential essentially allows the drive wheels to spin at different speeds (only the drive wheels). This has to happen because as a car turns an apex, the inside wheel will travel a shorter distance than the outside wheel will do. A standard differential will distribute the power between the driven wheels evenly, unless one of the wheels begins to slip, the torque will then go down the path of least resistance and that one wheel will spin up, thus wasting all of the power. This is where the LSD comes into play.

Initial Torque

This value controls the dif as a whole, so it will act to increase or decrease the acceleration or deceleration settings themselves. It also determines how responsive the dif. itself is, so can be used to help control how manoeuvrable the car is.

A lower setting will increase the cars manoeuvrability but it will reduce the effect of the acceleration or deceleration settings.

(If set to 5, the LSD will act as an open dif and will spin one wheel at different speeds to the other. If set to 60, the dif will act as a locked dif thus meaning both wheels will spin at the same speed. Either values will make A & D settings redundant. The point
where Initial Torque makes the other settings redundant varies from car to car.)

Acceleration Settings

This setting controls the locking level of the LSD under acceleration, it can be used to control wheel spin whilst exiting a corner, but it can also limit the cars ability to turn under acceleration.

Higher values increase traction out of corners by limiting wheel spin but it can also limit the cars ability to turn in tight corners.

Lower values reduce traction out of corners by increasing the chance of wheel spin but it improves the cars ability to turn in tighter corners.

Deceleration Settings

Controls locking under deceleration, can improve car stability when braking into a corner.

Higher values increase stability when decelerating into a corner but can limit the cars ability to turn.

Lower values reduce stability when decelerating into a corner but can improve the cars ability to turn.
 
When I bought my Porsche the sales guys told me to only factory spec a LSD if I wanted to do powerslides - so I did :)
 
This is probably already stated here but here is my take on the LSD tuning.

I break the LSD down to 3 positions on track then tune from there.

1 (Inital)) Car spins coming out of corner on acceleration
2 (Accel)) Car spins after corner has been exited and is under hard acceleration
3 (Decel)) Car spins when lifting off gas or braking before corner

Increase each number until the car stops spinning one tire in each of the three position. If you are fine everywhere but when you hit the brakes or lift, then just increase the last number. You want to run the numbers as low as possible without spinning one tire on the car.

I also run some basic LSD tuning based on the HP of the car.

500-below 13/25/7
500-700 18/32/9
700-above 22/35/11

I start with those values and then change from there. Hope this helps someone out :)
 
LSD? It helps you enjoy that horrible 70s music that would otherwise make you punch a fork through your eardrums.
 
I find myself understanding the "theoretical" concept of LSD, with the various posts I ahve been reading, but unfortunately, without actual diagram/animation of these theories, under accel, or under braking, entering, through, exiting, from inital starting speeds, all this theory means jack squat to me, and probably to many others, unless you actually test run some variables in the car you choose to drive, and take notes of settings, as you try different turns, etc.

What I have trouble grappling is: the accelleration and deceleration settings themselves, and what they have to do with the car's ability to turn. Why would a high value increase stability, yet hinder the turn itself? wouldnt good stability mean good turns?

this is what throws the theory out the window to me.
 
Lambob
I find myself understanding the "theoretical" concept of LSD, with the various posts I ahve been reading, but unfortunately, without actual diagram/animation of these theories, under accel, or under braking, entering, through, exiting, from inital starting speeds, all this theory means jack squat to me, and probably to many others, unless you actually test run some variables in the car you choose to drive, and take notes of settings, as you try different turns, etc.

What I have trouble grappling is: the accelleration and deceleration settings themselves, and what they have to do with the car's ability to turn. Why would a high value increase stability, yet hinder the turn itself? wouldnt good stability mean good turns?

this is what throws the theory out the window to me.
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Exactly the opposite. Think about a car turning. To get the car to turn the outside wheel needs to spin faster to rotate the car around. Lower numbers on the LSD will make the wheel spin faster therefore increasing turning speed.

A locked LSD (higher numbers) will make both wheels spin at the same speed and therefore cause the car to push through the turn.

You want to find that number on your LSD to where it allows the wheel to spin fast enough to turn but not fast enough to unload the wheel and spin out.

Ever driven a 4x4 with a locked front end and tried to steer it around a corner without backing up 50 times? Same concept.

A good test to see....turn LSD inital to 60 and drive, then turn to 5 and drive. You will see exactly what I am saying. :)
 
thank you KForceOH,

just so I understand, lets say the car is parked in the driveway, and I jack up the rear (lift both rear wheels off the ground)

if the diff is open, I can rotate (spin) , with my hands, a rear wheel, while the other won't turn, correct?

if the diff is locked, or wedged, and I try to turn with my hand, the same rear wheel, it will force the other wheel to turn with mine, correct?

I just want to make sure, the LSD works in locking the actual axle, to turn wheels at the same "time" , and not just at the same "speed", or is this the same? lol.

now how can we apply the torque settings, and accel and decel numbers in practice, while the rear is jacked up? (assuming this is a FR car)

starting with initial torque, if set low (to 5), then it wouldn't take much "force" of my hands to make the axle locked,
whereas if set to high (60) I would have to "suddenly" "want to" spin them with chuck norris strength, in order for the wheel axle to "become" locked, correct? whereas if I turn them faster and faster, but "taking my time to do so" aka, low HP / low torque car, then having a 60 setting would want to keep the wheels open ...
 
Sohvakettu
And your teacher knows everything! :)
It is a psychoactive drug that might be good for pain relief or as part of psychotheraphy, but the ban on it caused by the recreational use with high dosages has hampered the research on the substance. :p
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👍
 
Lambob
thank you KForceOH,

just so I understand, lets say the car is parked in the driveway, and I jack up the rear (lift both rear wheels off the ground)

if the diff is open, I can rotate (spin) , with my hands, a rear wheel, while the other won't turn, correct?

if the diff is locked, or wedged, and I try to turn with my hand, the same rear wheel, it will force the other wheel to turn with mine, correct?

I just want to make sure, the LSD works in locking the actual axle, to turn wheels at the same "time" , and not just at the same "speed", or is this the same? lol.

now how can we apply the torque settings, and accel and decel numbers in practice, while the rear is jacked up? (assuming this is a FR car)
Click to expand...

If the diff is open when you spin one tire the other will go the opposite direction in real life, but yea it is essentially just what you said.

If it is locked you are exactly right both will spin at same speed with a 50/50 power split and that is a constant value.

Speed and time in this case would mean the same.

Now this is a LSD we are tuning so it is really never a fully true locked rear but very very close with numbers of 60.

What you want to do is think of it as a clutch, (at least I do), I just control the slip with the LSD numbers.

Break it down to one single corner. You hit the brakes, turn the apex, and accel out. Now think of those 3 parts as the 3 numbers in the LSD.

If you come into the corner and hit the brake and you rear end slides out or the car is unstable then TURN UP DECEL.

In the middle of the corner and partial exit when you hit the gas if your car spins in the rear and gets to loose for you the TURN UP INITAL.

After exiting the corner and your on the gas and the car shifts 2nd - 3rd and spins loosing grip then TURN UP ACCEL.

You can tune the car pretty good and get a good understanding of whats going on by just hitting one corner on a track and keep doing the same one with different numbers you can feel the car and the adjustments.

You want to get the numbers as low as you can and still be able to hammer on the car. A lot has to do with driving style also. If you are light on the pedal you can run lower numbers. If your a lead foot, like me lol, you need higher numbers.

Try running those base numbers I posted earlier based on the HP of your car and go from there.

Anything else just ask I'll try and answer my best :)
 
great answer, thank you,

now, if I am starting by adjusting decel first, can I assume that the Initial setting has little to do with the decel?

is the initial setting mainly used for the accel?
 
I always start with initial as it seems to be the most important and it does have an effect on the other numbers. Really I start with my base settings and then adjust whichever piece needs it. For example I setthe base numbers based on hp then if then car slides under braking I will just bump decel up a couple numbers. Once I get a ok setup I can drive then start lowering each number and really dial it in.

Honestly unless its really a car I drive all the time or am trying for a fast lap I just run my base numbers based on hp and roll out
 
Thank you for your help, now I must learn what to set the springs, according to height adjustments on the car!
 
Maybe you can help me, so, i'm actually trying to set my LSD correctly using a Audi TTS Coupe 09, using 4WD, i'm struggling to make it a bit faster in corners at nurburgring GP/D, so i'm telling you whats happening and maybe you can tell me what i'm doing wrong,

so i've my LSD set to 5/5/20 in Front and 5/5/20 in Rear, i dont understand what i'm doing wrong cuz i belive this settings are the most "opened" differencial i can get, although my car just still understeering which makes me lose a lot of time on those thight corners.

i'm using a torque distribuition of 10F/90R so that make my car can oversteer but still, it doesn't make what i want it to.

So i ask you what settings should i use to make my car steer wayyyyy better in thight corners.

Thanks
 
Stability really almost means "less movement." Turning requires a bit a moving, so the more stable your car is, the greater the turning radius becomes.

I'm not sure if you're a skateboarder, but a great example would be adjusting the bolt on the kingpin of the trucks. The more you tighten that bolt, the less the board wants to lean from side-to-side (that means it is more stable--a higher LSD value if you will) and the greater your turning radius becomes. If you loosen that bolt it'll allow the board to lean from side-to-side more, and that will allow your board to be able to turn in a much tighter radius, yet it also becomes a bit more wobbly (less stable--like a lower LSD value).

Not the best example ever, but hopefully it can help you paint a better mental picture. 👍
 
ViLLaiN
Stability really almost means "less movement." Turning requires a bit a moving, so the more stable your car is, the greater the turning radius becomes.

I'm not sure if you're a skateboarder, but a great example would be adjusting the bolt on the kingpin of the trucks. The more you tighten that bolt, the less the board wants to lean from side-to-side (that means it is more stable--a higher LSD value if you will) and the greater your turning radius becomes. If you loosen that bolt it'll allow the board to lean from side-to-side more, and that will allow your board to be able to turn in a much tighter radius, yet it also becomes a bit more wobbly (less stable--like a lower LSD value).

Not the best example ever, but hopefully it can help you paint a better mental picture. 👍
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lol i know wat u mean. gud call with the skateboard reference, cuz actually i do skateboard. ^^
 
x_okami_x
lol i know wat u mean. gud call with the skateboard reference, cuz actually i do skateboard. ^^
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Loose Trucks for Street, Tight trucks for Ramp, I miss my youth.. (I rode on an autographed Tony Hawk Powell board) back in 198...8-ish?
 

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