LSD rear end
#19
Lexus Champion
bringing this back from the dead, i was told my car has a TT auto diff but it never locks, or at least i dont think it does, i tried doing some donuts in a wet parking lot and the car just stood still and i think one wheel was just spinning. is a torsen supposed to lock in situation like that? also would a MK3 turbo Clutch type LSD, which is a 1.5 way, work in an SC?
#20
bringing this back from the dead, i was told my car has a TT auto diff but it never locks, or at least i dont think it does, i tried doing some donuts in a wet parking lot and the car just stood still and i think one wheel was just spinning. is a torsen supposed to lock in situation like that? also would a MK3 turbo Clutch type LSD, which is a 1.5 way, work in an SC?
If you're not experiencing the feel of the car straightening out the rear when you induce a tail slide you should have the rear end checked. There is no way to tell if you have a Torsen T-1 for sure unless you can tell by driving the car or by physically pulling the aluminum cover off the differential casing and visually verifying. Up in the air a Torsen T-1 diff acts exactly like an open differential. It also acts exactly like an open differential in the event one wheel becomes unloaded in the air in a racetrack situation (this is an extreme case compared to normal street driven SC's). I read that even rarer (97-98 Turbo only I think and more commonly JDM) Torsen T-2's don't exhibit this behavior. The likelihood of a Torsen T-2 being in that differential from a late model TT Auto is extremely doubtful to improbable.
No, Torsen or clutch-type LSD's from the MKIII Supra / IS300 / IS250 / Cressida / FR-S / BRZ differential family will not work in an SC, GS or MKIV Supra. Some have tried it in a couple of threads but it's not recommended. Unfortunately we don't have it easy for LSD options but the good news is our differential casings and diffs are extremely tough compared to the MKIII style diffs. MKIII clutch-type OEM LSDs also were not very well designed. The rarer Torsen years are better for those cars and even better yet are the aftermarket clutch LSD options for MKIII's like Cusco or OS Giken... which we also have made for our MKIV 200mm style differentials.
Last edited by KahnBB6; 08-20-14 at 12:23 AM.
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