Upgrading to a limited slip differential

[Andy C]

Those saying brake torque vectoring is not useful for a car with a diff do not understand how differentials work. Torsen and clutch pack diffs put a multiple of the the lowest torque to the opposite wheel. So if one wheel is slipping, torque is zero, and the diff multiplies some torque by zero for the other axle. Since zero times any number is zero, no torque is sent to the wheel with grip. Applying brake to the slipping wheel makes the torque a non-zero value, and therefore torque can be applied to the wheel with grip. Engineering explained on YouTube has a good video.

 

[NismoDPB]

Those saying brake torque vectoring is not useful for a car with a diff do not understand how differentials work. Torsen and clutch pack diffs put a multiple of the the lowest torque to the opposite wheel. So if one wheel is slipping, torque is zero, and the diff multiplies some torque by zero for the other axle. Since zero times any number is zero, no torque is sent to the wheel with grip. Applying brake to the slipping wheel makes the torque a non-zero value, and therefore torque can be applied to the wheel with grip. Engineering explained on YouTube has a good video.

"Those" didn't say it, I said it Mr. Passive aggressive and yes we understand how it works. The very concept has been explained on the thread. The reason I said that was because if you had the front edif slowing down the inside wheel during a rotation while the rear LSD is increasing speed of the outside tire then it would be counter productive to having an LSD. The whole reason you would have LSD is to not use a brake based torque vectoring system to increase cornering speed. Also having an inside front wheel braking while cornering would induce more slip angle.

I am not saying the car doesnt have it, just I am not sure why it would. This is not due to a "lack of understanding of how a differential works" , its due to the fundamental difference in their applications.

Edit: The other reason I think this is the D-AWD in the GTS is supposed to allow some sort of AWD drift, which i think only works if the front inside wheel is allowed to spin.

 

[Andy C]

I wasn't being passive aggressive, you presumptive ****.

 

[Kia Stinger]

Two personal insults; two people removed from the discussion.

 

[Talloneus Khan]

Anywho, drama aside, is there anybody else that has done this upgrade?
Select a Product | DamnFastDD.com
What else would I need if I were to go this route? Link is for what I am looking at buying

 

[Jacques]

^^^Link is broken.

 

[Hockster]

^^^Link is broken.

NVM

Edit: the forum adds in extra character that can't be removed

 

[Talloneus Khan]

Well, try it now

 

[Jacques]

OK, now I see it. They don't have much details except to call it "Kia Stinger OEM LSD", do they?

 

[Talloneus Khan]

Exactly, which is why I am curious what else I would all need

 

[Hockster]

Probably best to call them, or message on FB.

 

[Marc Collins]

The LSD is now (finally) standard equipment on the 2020 top model (AWD) in Canada. Hopefully someone who actually understands these things will confirm whether there is any software difference required/advised.

 

[Brandondrums]

Actually, you totally *could* get a bit of drift going on in the AWD with a LSD. The AWD Genesis G70 which has LSD proves that fact. Heck I can get throttle-on oversteer out on my 2005 WRX even (in the wet) and it's an extremely nose-heavy AWD car with 45/55 F/R power distribution.

Even without an LSD though, if the torque vectoring were tuned for it the AWD would still be able to get throttle-on oversteer but it sounds like it just isn't programmed that way. For comparison, the famous McLaren P1 hypercar has an open rear diff and relies 100% on torque vectoring to control the power.

 

[bpang1]

Exactly, which is why I am curious what else I would all need

Did you ever hear back from them? They are pretty quick to get back to emails from my experience

 

[Roy Martinez]

Reviving this... OP, Did you ever do the "upgrade" to LSD. I am in the exact same boat as you.

 

[Callum]

Reviving this... OP, Did you ever do the "upgrade" to LSD (Limited Slip Differential). I am in the exact same boat as you.

I did not. I actually just learned to live with it. The last thing I need is to buy a used diff, it has some oil or BS issues and exploded lol

I'm contemplating on selling mine, and going to a new BMW M Comp vehicle.

 

[Dia1Up]

Check with your dealer to see if they can order one. Talking to my service here at our dealership, they can look at the part, we aren't sure about ordering until we go and do it. When I get my Stinger, depending on the route I go (whether it has one or not) I'll get them to do the research. It will be the first thing I do.... after Eibach of course. I get to order those straight through my dealership \o/

 

[Marc Collins]

Check with your dealer to see if they can order one. Talking to my service here at our dealership, they can look at the part, we aren't sure about ordering until we go and do it. When I get my Stinger, depending on the route I go (whether it has one or not) I'll get them to do the research. It will be the first thing I do.... after Eibach of course. I get to order those straight through my dealership \o/

Which dealer is ordering and installing Eibach (springs or bars)?

 

[Dia1Up]

Which dealer is ordering and installing Eibach (springs or bars)?

It seems all in Canada. Our vehicle guides we get straight from Kia has them listed

and (if I can post links now)

Tire Wizard

app.tirelocator.ca

The official Kia Canada website even! (It says tire wizard but that is an accessory list for the 2020 Stinger on the Kia Canada website)

 

[Marc Collins]

It seems all in Canada. Our vehicle guides we get straight from Kia has them listed

and (if I can post links now)

Tire Wizard

app.tirelocator.ca

The official Kia Canada website even! (It says tire wizard but that is an accessory list for the 2020 Stinger on the Kia Canada website)

Interesting...hadn't seen that. But can they get any Eibach parts, or only that one combo? And how much is installation at your dealer?

I will check with mine about this and the LSD, but the last time I asked about LSD, they had no clue whether it would seamlessly retrofit to a 2018. I also only want the rear bar, at least to start.