[Supras] Torsen problems/concerns....

[Joel Watkinson (Cars)]

> I got the Torsen bolted in last night and went for a test drive. I
> immediately noticed I could feel the rear of the car pulling to one
> side, almost like you could feel it differentiating. This was in a
> straight line which I thought was strange.

It was my recollection that the Torsen required normal motor oil and
that the weight of the oil affected the torque split. I can't seem to
find that info again now though... I do know for sure that is does not
need any friction modifiers though. That's just for the clutch-pack
style LSDs.

Anyone got the REAL specs for a JZA70 with Torsen? I found some on Turbo
Supras:

http://turbosupras.com/pages/en/pages/specifications/JZA70/jza70.htm

But with so many blanks, it makes me wonder if all the specs are
correct.

I also recall that Torsen in the Supras is a Type 1, which, according to
Torsen:

http://www.torsen.com/fsae/fsaefaqframes.htm

they suggest 70w90 but say any GL4 or GL5 will do.

As far as the pull, it shouldn't. I've never heard of any diff that is
operating normally and has a pull to either side in a straight line.,
but, I'm no expert on the subject either.