L.S.D. Settings

  • Thread starter Thread starter OmniusGT
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OmniusGT

OmniusGT

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What am I doing wrong?

I have a rough understanding of what the LSD does on cars, my question is, where am I going wrong with high powered RWD cars with the LSD settings?

Its not so much the tail letting go, I guess thats because I'm applying too much right foot too soon in a corner? What I will says is what's going on with my RWD cars wanting to push the front into an understeer?

Surely the LSD with be able to iron out one of my concerns - Accelerationg from the apex but causing the front to drift to the outside of the bend.... :banghead:
 
So…to simplify, you're experiencing understeer from mid-corner onwards, right? I've not been doing much "revision" on exactly how to cure it, but I'd say either raise LSD Braking or LSD Accel.

And looking back at the tuning guides is always a good thing to do. 👍
 
Onboy - your advice sounds like a guess. What are you telling this guy?

OmniusGT - I have very clear thoughts about how the LSD works. Higher numbers in the LSD means more stability, lower means more turning ability. To be more specific.

LSD Decel - effects corner entry down to apex, only when off throttle. Higher number equals more stability, lower number equals better rotation. I use as low of a number as I can for decel. I want cars to turn in well and very agressively.

LSD Accel - effects mid-corner off, only when on throttle. Use this setting to manage outside/inside wheel spin. If you turn the outside tire red on exit, decrease this number. If you turn the inside tire red on exit, increase this number. If both tires break loose at the same time, Accel is set perfectly and you need to look at other settings to get more grip off the corner.

LSD Initial - there has been much debate about what this does. I believe that it sets the diffs ability to lock and unlock at different torque settings. Higher number equals more stability and lower number equals more turning ability.

To see what most others believe, see the link in my signature below.
 
Onboy123
I've not been doing much "revision" on exactly how to cure it, but I'd say either raise LSD Braking or LSD Accel.
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I'd say the exact opposite. I'm not very experienced with LSD tuning but to me it's easy to start off with a setting that's too stiff. Too stiff will cause the understeer that OP is describing and it's easy to try and lower it from there until you cure the understeer but still maintain maximum stability.

Many people say they can pretty much alter 100% how the car handles with just LSD tuning so I'm sure many people have good ideas.
 
Motor City Hami
Onboy - your advice sounds like a guess. What are you telling this guy?
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It's exactly that. A guess. I'm basing this guess on next to no theory and just what little I know, right or wrong.

As said, I've not been revising LSD theories nor using it in practice for a while, and for all I know at this point, in this situation it seems to concern the LSD Braking or Accel.

Of course, since you've pretty much got this LSD thing sorted in your head, you've probably got a clearer idea in your head as to what's wrong here than I do.
 
what about suspension setup? I set-up the LSD for stability entering a corner and overall grip through the middle and exit, and use the suspension to iron out understeer problems.
 
arb tip above is good

as well:

raise front damper extension and/or rear damper compression

shift some weight to the back
 
esoxhntr
raise front damper extension and/or rear damper compression

shift some weight to the back
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Explain yourself?

To shift weight to the back I would do the opposite.

I believe
Increasing front damper extension - keeps weight over front for longer
Incresing rear damper compression - allows weight to shift over to the rear more easily.

Raising the rear compression setting makes it harder for weight to shift over to the rear, keeping the load over the front for longer.

Correct me if im wrong.
 
Jackthalad
Explain yourself?

To shift weight to the back I would do the opposite.

I believe
Increasing front damper extension - keeps weight over front for longer
Incresing rear damper compression - allows weight to shift over to the rear more easily.

Raising the rear compression setting makes it harder for weight to shift over to the rear, keeping the load over the front for longer.

Correct me if im wrong.
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you misunderstood. those were 3 separate suggestions to help with corner exit understeer.

shift some weight to the back = move it in the game (ie. ballast) rear weight biased cars tend to oversteer more.
 
esoxhntr
you misunderstood. those were 3 separate suggestions to help with corner exit understeer.

shift some weight to the back = move it in the game (ie. ballast) rear weight biased cars tend to oversteer more.
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Ohh ok I get you now

Shift some weight as in ballast. Got ya!

But what about your Damper theory.

Increase front extension
Decrease rear compression
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That can increase understeer.
 
I think I said increase rear compression (at least I meant it).

If you are of the belief that higher damper values = harder to compress/extend, doing one or both of those will decrease understeer on corner exit.
 
This video from 50 years ago and explains how it works! explanation simple and fun






PS :Moderators, if this video can not stay here as an explanation, excuse me, can you delete or move topic ... thanks
 
Clearly, from that video you can tell that the Initial Sensitivity does Imjustkiddingitdoesnt and that the Acceleration Sensitivity alters Imjustkiddingitdoesnt and at the end of the video it explains that a higher DeAcceleration setting will Imjustkiddingitdoesnt.
 
CCR_BR2
This video from 50 years ago and explains how it works! explanation simple and fun
Click to expand...

Hold up. I had to watch the video to understand Adrenaline's sarcasm. That video did not demonstrate a limited slip differential. That was an open differential. Though it was fun to watch 50 year old footage, it wasn't very useful or helpful for the OP.
 

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