Torsen limited slip - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

7thgear · 03-13-2012, 03:14 PM

you guys troll but for every 1 of you there are 100 people that actually think like that.

7thgear · 03-13-2012, 03:15 PM

Quote:

Originally Posted by Bristecom

Well I know open diffs rarely ever need their oil changed. Clutch and viscous types (like mine) need them changed more often. But does anyone know how often a Torsen needs its oil changed? I'm assuming a lot less. I remember reading that the Quaife/helical front diff oil is basically good for the life of the diff. So I suppose it could be the same with a Torsen?

not all viscous LSD's can have their fluids replaced, most are sealed.

at least subaru is like that, they had pre 98 subaru's had center viscous diffs that could have the fuilds replaced but they gave up on that. If you fry one now, gotta get a new one.

Bristecom · 03-13-2012, 03:19 PM

Quote:

Originally Posted by 7thgear

Most viscous LSD's are sealed units, you cannot change the liquid that creates the force properties. (in a subaru anyway)

pre 98 subaru's had center viscous diffs that could have the fuilds replaced but they gave up on that.

Oh... my rear and center viscous LSD does need to be changed though. The center shares transmission fluid and the rear uses a 90 weight gear oil.

Dave-ROR · 03-13-2012, 03:28 PM

Quote:

Originally Posted by Bristecom

Well I know open diffs rarely ever need their oil changed. Clutch and viscous types (like mine) need them changed more often. But does anyone know how often a Torsen needs its oil changed? I'm assuming a lot less. I remember reading that the Quaife/helical front diff oil is basically good for the life of the diff. So I suppose it could be the same with a Torsen?

Need and should have can be different. IIRC Hondas with Torsen's usually want 30k, maybe 45k changes. I can't recall. I change my hondas every 12-15k. IIRC (I'd have to check) the open diff/transaxle suggested intervals were the same as those with a torsen.

SkullWorks · 03-13-2012, 03:41 PM

In a clutch type the fluid life is shortened by the shearing action that creates the force that splits torque.

In a helical or Open diff there is only heat and age related break down (heat is also considerably less since it is not a friction based torque transfer

korinfox · 03-13-2012, 07:35 PM

My IS300 OEM Torsen LSD (the same one I think that's going to be in the FR-S/BRZ), is supposed to have the oil changed every 60k miles, the same as the open diff. Some people change their LSd diff oil every 30k miles.

Bristecom · 03-13-2012, 11:28 PM

Quote:

Originally Posted by korinfox

My IS300 OEM Torsen LSD (the same one I think that's going to be in the FR-S/BRZ), is supposed to have the oil changed every 60k miles, the same as the open diff. Some people change their LSd diff oil every 30k miles.

Sweet, so what fluid does it use? Just some 75w-90 LSD gear oil?

koyv90 · 03-14-2012, 12:12 AM

why not get the base model with no lsd and swap in a better aftermarket one? Or is this one going to be OMG amazing or something?

Bristecom · 03-14-2012, 12:16 AM

Quote:

Originally Posted by koyv90

why not get the base model with no lsd and swap in a better aftermarket one? Or is this one going to be OMG amazing or something?

Because they likely aren't going to offer one here in the US without an LSD. Not to mention, it's more money and the Torsen is more progressive and more reliable/consistant than a clutch type anyway.

serialk11r · 03-14-2012, 12:17 AM

Quote:

Originally Posted by koyv90

why not get the base model with no lsd and swap in a better aftermarket one? Or is this one going to be OMG amazing or something?

Base model not sold in the USA. I know, I'm sad too.

korinfox · 03-14-2012, 02:40 AM

Quote:

Originally Posted by Bristecom

Sweet, so what fluid does it use? Just some 75w-90 LSD gear oil?

Yeah. I just used Mobil 1 75w-90 gear oil.

Bristecom · 03-14-2012, 02:46 AM

Quote:

Originally Posted by korinfox

Yeah. I just used Mobil 1 75w-90 gear oil.

Cool, that's what I use in my car now and was hoping to use in this car when needed.

Corey · 03-14-2012, 04:42 AM

Quote:

Originally Posted by koyv90

why not get the base model with no lsd and swap in a better aftermarket one? Or is this one going to be OMG amazing or something?

There's a number of reasons but a big one is many racing classes restrict modifications and don't allow retrofitting optional equipment like the LSD unless the entire associated package/trim is added as well. For people in such a situation where the stock LSD would certainly be better than an open differential it makes more sense to buy the car equipped with it stock.

Alliedforces86 · 06-12-2012, 10:04 PM

Stock works fine for me.
[ame="http://www.youtube.com/watch?v=cOAsjB1P1vU&feature=youtube_gdata_player"]Fun in My new FR-S - YouTube[/ame]

03-13-2012, 03:14 PM	#29
7thgear i'm sorry, what? Join Date: Jan 2012 Drives: Canada Location: I rock a beat harder than you can beat it with rocks Posts: 4,399 Thanks: 357 Thanked 2,508 Times in 1,268 Posts Mentioned: 40 Post(s) Tagged: 3 Thread(s)	you guys troll but for every 1 of you there are 100 people that actually think like that. __________________ don't you think if I was wrong, I'd know it?

06-12-2012, 10:04 PM	#42
Alliedforces86 Flat 4 Handyman Join Date: Apr 2012 Drives: Firestone Red FR-S & WRB MY2002 WRX Location: Vacaville CA Posts: 197 Thanks: 12 Thanked 35 Times in 27 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	Stock works fine for me. [ame="http://www.youtube.com/watch?v=cOAsjB1P1vU&feature=youtube_gdata_player"]Fun in My new FR-S - YouTube[/ame] __________________

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03-13-2012, 03:41 PM	#33
SkullWorks Banned Join Date: Mar 2012 Drives: SSM LT MT BRZ Location: SoCal Posts: 1,033 Thanks: 803 Thanked 754 Times in 328 Posts Mentioned: 23 Post(s) Tagged: 1 Thread(s)	In a clutch type the fluid life is shortened by the shearing action that creates the force that splits torque. In a helical or Open diff there is only heat and age related break down (heat is also considerably less since it is not a friction based torque transfer

03-13-2012, 07:35 PM	#34
korinfox Member Join Date: Dec 2011 Drives: Lexus IS300 Sportcross Location: Boston, MA Posts: 61 Thanks: 5 Thanked 15 Times in 8 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	My IS300 OEM Torsen LSD (the same one I think that's going to be in the FR-S/BRZ), is supposed to have the oil changed every 60k miles, the same as the open diff. Some people change their LSd diff oil every 30k miles.

03-14-2012, 12:12 AM	#36
koyv90 Rocket Bunny FRS Join Date: Dec 2011 Drives: 2013 Rocket Bunny FRS Location: United States Posts: 447 Thanks: 15 Thanked 29 Times in 24 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	why not get the base model with no lsd and swap in a better aftermarket one? Or is this one going to be OMG amazing or something?

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