What type of LSD does the stinger GT have

[dddd]

The reason I ask is because today I was changing the rear brake pads, with both sides jacked up when I rotate one wheel the opposite side moves in the opposite direction, all my cars that have had limited slip diff's before have always moved/rotated in the same direction, and yet when you take it out on the grass turn off traction/ stability control and give it a boot both sides do spin up and bite, what am I missing here is this some type of new LSD ??

 

[Rynil2000]

Torsen LSD (Limited Slip Differential) both wheels need to be on ground. It’s like open dif when wheel is off the ground. Not clutch type from my understanding.

I was interested myself, so I did some digging. It's a Torsen LSD, which is different from some other clutch pack type differentials. There is a good discussion about it in this thread.

Also, depending on your model and year, you may not have an LSD. The GT AWD didn't get the LSD, but has torque vectoring, and the RWD didn't get the LSD in all GT trim levels until 2019.

 

[Rynil2000]

Here's a better video with animation to explain

 

[dddd]

I was interested myself, so I did some digging. It's a Torsen LSD (Limited Slip Differential), which is different from some other clutch pack type differentials. There is a good discussion about it in this thread.

Also, depending on your model and year, you may not have an LSD (Limited Slip Differential). The GT AWD didn't get the LSD (Limited Slip Differential), but has torque vectoring, and the RWD didn't get the LSD (Limited Slip Differential) in all GT trim levels until 2019.

Yes I considered a Torsen but I dont believe they do run the Torsen (very expensive compared to normal clutch type diff) and even if they did both wheels should turn in same direction
Mine is an Australian 2019 model and all AU V6's were suppose to have LSD
It has me intrigued and will do a bit more experimentation

 

[ShannonC]

According to Kia its Mechanical.

 

[Hockster]

From the KGIS system:

 

[dddd]

From the KGIS system:

View attachment 48176

Thanks, now all we need is someone who can tell us if we are looking at a Torsen or not

 

[Rynil2000]

Thanks, now all we need is someone who can tell us if we are looking at a Torsen or not

Yeah - I honestly don’t know. I just found that older thread and ran with it. However that diagram doesn’t look too convincing. The search continues.

 

[G-270730]

G70 lists multi plate which I believe is another way of saying torsen. Should be the same as the stinger

 

[sgearhart3]

A Torsen LSD is a mechanical type LSD. Mechanical meaning that is uses gears instead of clutches. That diagram looks like a mechanical LSD to me. The word "Torsen" is sort of confusing because it's not like a brand or something, it just stands for "torque sensing." I'm pretty confident the LSDs in the equipped Stingers are mechanical. If you're not talking about a true torque vectoring differential, most O.E. LSDs tend to be mechanical because they don't really need periodic maintenance, whereas clutch based LSD will wear out over time. Mechanical LSDs also act like open diffs until there is slippage, which is good for regular driving. But like stated above, they don't do anything if one wheel comes of the ground completely. You see clutch based more in aftermarket stuff for like track setups for that reason, and I believe they are more expense actually.

 

[ZyroXZ2]

It's a mechanical clutch-type LSD with a mechanically pre-defined allowable slip percentage.

 

[dddd]

It's a mechanical clutch-type LSD (Limited Slip Differential) with a mechanically pre-defined allowable slip percentage.

If thats the case mine is faulty, because when jacked up you can turn one wheel while the other can easily be held still and yet under power both wheels put power down
My best guess after doing a bit of digging and looking at its symptoms is that it is a Torsen

 

[ZyroXZ2]

If thats the case mine is faulty, because when jacked up you can turn one wheel while the other can easily be held still and yet under power both wheels put power down
My best guess after doing a bit of digging and looking at its symptoms is that it is a Torsen

Dude... lol... You really think you have the arm strength to reach the necessary torque difference between the wheels to engage the clutch?!

I get what you were trying to test, but you ended up just your wasting time. It allows slip (one wheel to spin) up to a certain point in which the torque (not engine torque from the driveshaft, but between the two wheels and the road surface) difference causes the clutches to engage. When you drive it from the driveshaft, of course it engages both wheels like an open diff would: there's no friction difference between the two.

But yea, it's not a Torsen. If it was, not only would they advertise that (because that would be a selling point), but the dude above posted a diagram that clearly shows the standard look/layout of a clutch-based limited slip diff. Lastly, in order to stop the "clunking" many early Stinger GT owners had with the limited slip just parking or turning, they (Kia) changed the fluid. Fluid plays a major part in clutch engagement/slip, so there's further "proof" right there. A Torsen is purely mechanical (gear-based), the fluid would not alter engagement and thus offer no real affect. Torsens also have helical gears in them, so visually they're easy to identify once opened up.

 

[dddd]

Dude... lol... You really think you have the arm strength to reach the necessary torque difference between the wheels to engage the clutch?!

I get what you were trying to test, but you ended up just your wasting time. It allows slip (one wheel to spin) up to a certain point in which the torque (not engine torque from the driveshaft, but between the two wheels and the road surface) difference causes the clutches to engage. When you drive it from the driveshaft, of course it engages both wheels like an open diff would: there's no friction difference between the two.

But yea, it's not a Torsen. If it was, not only would they advertise that (because that would be a selling point), but the dude above posted a diagram that clearly shows the standard look/layout of a clutch-based limited slip diff. Lastly, in order to stop the "clunking" many early Stinger GT owners had with the limited slip just parking or turning, they (Kia) changed the fluid. Fluid plays a major part in clutch engagement/slip, so there's further "proof" right there. A Torsen is purely mechanical (gear-based), the fluid would not alter engagement and thus offer no real affect. Torsens also have helical gears in them, so visually they're easy to identify once opened up.

I guess I'm just having trouble getting my head around the "mechanically pre-defined allowable slip percentage"It must be extremely low with the Kia . All the other clutch type LSD I have had over the years have not worked that way, but I am far from any expert on the subject that for sure

 

[Kimberly Lazarski]

If thats the case mine is faulty, because when jacked up you can turn one wheel while the other can easily be held still and yet under power both wheels put power down
My best guess after doing a bit of digging and looking at its symptoms is that it is a Torsen

To test this in your garage you can raise one side of the car on a jack, get in the car, put it in gear, and touch the throttle; the raised wheel will spin. Next, bury the throttle. If you're right, the car will stay still and the raised wheel will just spin. (don't actually do this; the car will be launched through your wall and you'll end up suing me over bad advice...) You'll find the car will launch forward, the jack will be kicked out from under the car and go flying off hitting whoever is nearby, and you'll be opening up a new door in one of the back corners of your garage.

The clutch packs will allow for some amount (limited) slip, then once you pass the threshold of the clutchpack, the other wheel will lock with it and each wheel will receive 50% of the torque sent to that axle.

 

[Insanedonut351]

torsen diffs dont require friction modifier in the fluid. they are good for off road use, not sure in a sport/supercar application. you can spin many clutch type lsd in the air and they will act like an open diff. some have more resistance than others. most likely stinger gts have a clutch type lsd because they tend to be more daily friendly. torsen lsd are very rigid and can be noisy

 

[ephone]

I've read elsewhere the LSD on the stinger is the exact same one BMW uses on the 3 Series.

 

[Insanedonut351]

I've read elsewhere the LSD (Limited Slip Differential) on the stinger is the exact same one BMW uses on the 3 Series.

it would make sense. a lot of german engineering went into the kia/hyundai/genesis lineup