Limited Slip Diff

crazy88uk

130

crazy88uk

• Jan 9, 2011

• #1

I was hoping there may be someone that could explain tuning the LSD in layman's terms?

i know what an LDS is and what it does but i cant get my head around what handling characteristics in GT5 would mean i change certain settings or how adjusting those settings would effect the handling or impact on other settings.

any help would be much appreciated

thanks in advance!

 

FULL_THROTTLE

334

• Jan 9, 2011

• #2

Basically it stops the wheels on either side of a car turning at different speeds. On Gran Turismo 5 you have 3 settings on it, Initial torque: sets the overal amount of force before the LSD works; Acceleration: the higher this setting, the more the car will act like the go-kart; Deceleration: will slow your car down when you lift off the throttle.

Simple tuning goes, for a FR/MR/RR car set Initial torque 40-50 Acceleration 50-55 Deceleration 20-30 stops them from spinning out every time you go near the throttle.

And thats how a LSD works 👍

 

D

davidson

10

derkinator

• Jan 9, 2011

• #3

https://www.gtplanet.net/forum/showthread.php?t=135268

 

Hig-GT

1,096

Higz7

• Jan 9, 2011

• #4

Look at the first post here:

https://www.gtplanet.net/forum/showthread.php?t=135268&highlight=scaff+tuning+guide

You'll see the Downforce, LSD settings etc.

That should help

 

J

Jdmyo93

240

• Jan 9, 2011

• #5

FULL_THROTTLE

Basically it stops the wheels on either side of a car turning at different speeds. On Gran Turismo 5 you have 3 settings on it, Initial torque: sets the overal amount of force before the LSD works; Acceleration: the higher this setting, the more the car will act like the go-kart; Deceleration: will slow your car down when you lift off the throttle.

Simple tuning goes, for a FR/MR/RR car set Initial torque 40-50 Acceleration 50-55 Deceleration 20-30 stops them from spinning out every time you go near the throttle.

And thats how a LSD works 👍

Click to expand...

Will this help to like im not sure how I can explain it but here I go. Im using a RX7 GT-X '90 and I have installed all the parts to up the horse, and with a good set of sports tires its good. But my main concern is that sometimes when I turn to much and push the throttle the car starts to slide and I have to throttle control out of it. Will the LSD help for it? I'll try right now but need to get money again

EDIT:
Oops just barely saw that post Hig. Thanks 👍

 

Sandy106

644

Sandy106 // Frosty207

• Jan 9, 2011

• #6

Intial torque is how much torque you need before the LSD kicks in, the higher the setting, the more torque before the LSD will start to work.

Acceleration sensitivity adjusts how strong the LSD is when you hit the gas

Deceleration sensitivity adjusts how strong the LSD works when you are on the brakes//slowing down.

At least thats my understanding, I could be wrong. I usually keep it pretty high so it doesnt affect the car's handling as much.

 

H

harmonium

149

Dansemaskine

• Jan 9, 2011

• #7

FULL_THROTTLE

Simple tuning goes, for a FR/MR/RR car set Initial torque 40-50 Acceleration 50-55 Deceleration 20-30 stops them from spinning out every time you go near the throttle.

Click to expand...

I'm having that exact problem with my Audi R10 TDC RC '06. (Forum thread incoming as soon as moderators accept it) How would you recommend me to set the LSD values for that particular car? Just.. An overall setup, not for any specific track. I know absolutely nothing about tuning.

All help is appreciated. Thanks in advance

 

Mr. Boy

676

ham_vet001

• Jan 9, 2011

• #8

Increasing LSD Acceleration => more understeer when you get on the throttle.
Increasing LSD Deceleration => more understeer when you lift the throttle or get on the brakes.
Increasing LSD Initial Torque => gives more understeer and increases the overall effect of the LSD

Decreasing any of the LSD settings will give oversteer instead. That's how I understand it. I set it to 15/20/20 in most race cars.

 

D

desmosabie

98

desmosabie

• Jan 9, 2011

• #9

adjust the initial torque all the way up to 60 if you want something like a solid rear axle, the tires spin the same all the time. Note: this will eliminate the other LSD settings since the LSD is "locked" (adjusting initial torque to 60 is the same as setting them all to 60). This will give max acceleration but hamper some turning ability. For decel, if the car is "wavy" while braking adjust it up, but only enough to get the wave out, granted the the initial is not locked.
I start high an work my way down, every time. In my experience, as an example, if I put a rear tire in the grass on the outside of the corner, in any car other than a FF, with a stock LSD setting I will spin out 9 of 10 times. Sound familiar ? When I lock the diff (60) I will accel through little mishaps of putting a rear tire in the grass. This is why I "lock" as a standard, the other settings I do not adj until I'm happy, or safe, with the initial.

Just a little different way to say the same thing.

 

Last edited: Jan 9, 2011

RacingManiac

1,936

United States

RaceManiacGT1

• Jan 10, 2011

• #10

Mr. Boy

Increasing LSD Acceleration => more understeer when you get on the throttle.
Increasing LSD Deceleration => more understeer when you lift the throttle or get on the brakes.
Increasing LSD Initial Torque => gives more understeer and increases the overall effect of the LSD

Decreasing any of the LSD settings will give oversteer instead. That's how I understand it. I set it to 15/20/20 in most race cars.

Click to expand...

While that is true in general I think there some some exception. Increasing acceleration lock will couple the powered wheel together more, but sometimes that doesn't necessarily mean more understeer in all cases(say on a RWD car), since say in mid corner when the outside wheels are loaded, on a open diff car, you apply power, and the inside wheel will spin, you go nowhere since its just spinning up and smoke. Add LSD gives you that option of sending power to the loaded outside and it'll drive the car out of the corner, but it might result in more push(understeer) as the rear wheels are now coupled and less likely to turn. But if you are driving a powerful enough car, you can overwhelm the outside tire that is currently already loaded with the weight transfer mid-corner, and cause it to lose grip.

The more acceleration lock will also means the car will be more sensitive to bump and uneven surfaces(say bumps on the Ring or just riding the curb or putting a wheel on grass. The car might be more tricky to drive, especially if you are driving something particularly powerful...