LSD bugging?
05-04-11, 10:21 AM
#1
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LSD bugging?
I just recently installed supra LSD pumpkin in to my 95 sc300.
Left hand turns are great, i can swing the back out with 0 effort. Right hand turns completely different story, it feels exacly like open differential. Does this make sence? Which ever way you turn should not matter, should it?
Left hand turns are great, i can swing the back out with 0 effort. Right hand turns completely different story, it feels exacly like open differential. Does this make sence? Which ever way you turn should not matter, should it?
05-04-11, 11:33 AM
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Well i didt really have a chanse to test it well enough, wasnt really paying attention to it untill lately, but the difference is very obvious. Well it rained today pretty hard hopefully it will be still wet tonight, trying not to kill tires 
. Ima get out to some quiet place and test it out.
Was just wondering if anyone knew what i was talking about
. Ima get out to some quiet place and test it out. Was just wondering if anyone knew what i was talking about
05-04-11, 12:10 PM
#4
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Maybe one of your axles is pooched? If the diff was gone then I don't think it would be locking at all...Try getting the rear end off the ground and spin the wheels. Clear indicator of if the diff is works or not?
05-04-11, 02:25 PM
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Interesting, where would i look for this kit? Cant seem to find anything
05-04-11, 02:37 PM
#7
Here is a link to one rebuild kit.
http://www.weirperformance.com/maxgriplsdkits.html
This site explains how the diff works, take a look here and maybe you can pull the over and see what exactly is happening.
http://www.celicasupra.com/forums/sh...7.5-quot/page3
The diffs in these cars and the Supra unit are based on Toyotas 7.5 inch solid axle. You should be able to purchased a limited slip or locker from a 4x4 manufacturer and use it as well. I was reading on ARBs site, they make an air locker for front IFS Toyota 4x4 trucks which use the same center section as the sc rear. Their site stated their locker would work in mid 90's Celica models, since the Celica is fwd I imagine they meant Supra models so it should work in the sc as well.
http://www.weirperformance.com/maxgriplsdkits.html
This site explains how the diff works, take a look here and maybe you can pull the over and see what exactly is happening.
http://www.celicasupra.com/forums/sh...7.5-quot/page3
The diffs in these cars and the Supra unit are based on Toyotas 7.5 inch solid axle. You should be able to purchased a limited slip or locker from a 4x4 manufacturer and use it as well. I was reading on ARBs site, they make an air locker for front IFS Toyota 4x4 trucks which use the same center section as the sc rear. Their site stated their locker would work in mid 90's Celica models, since the Celica is fwd I imagine they meant Supra models so it should work in the sc as well.
Last edited by FatBrian81; 05-04-11 at 02:54 PM.
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05-05-11, 11:48 AM
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Eh dont really want to experiment here, yet another reason why i bought complete pumpkin, and now I have to open it up anyway. ESHhh way a pain. It was mentioned that it's adjustable, could it be that one side is just set up too light?
05-09-11, 10:07 PM
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just saw this post!
Roman the rear diff is a Torsen, not a clutch pack (Aristo/Supra LSD is Torsen)
also see the pics form the ad thread, it's a mechanical assembly not clutch packs on either side
the Torsen is the sought after rear diff, because it doesn't use wearable clutch discs for friction
The Torsen is built for traction and overall use (long term and no noise compared to 1.5 and 2 way LSD's)
It's not ideal for drifting, for that you want a 2 way (but that requires years of practice; until then start with a 1.5 way)
There's a significant difference between the different rear diffs, and each behaves differently
Not to be condescending, but think you need to do some more research before just buying a part and bolting it in
FatBrian81;
the 92.5+ supra doesn't have a solid rear axle, it's IRS
Roman the rear diff is a Torsen, not a clutch pack (Aristo/Supra LSD is Torsen)
also see the pics form the ad thread, it's a mechanical assembly not clutch packs on either side
the Torsen is the sought after rear diff, because it doesn't use wearable clutch discs for friction
The Torsen is built for traction and overall use (long term and no noise compared to 1.5 and 2 way LSD's)
It's not ideal for drifting, for that you want a 2 way (but that requires years of practice; until then start with a 1.5 way)
There's a significant difference between the different rear diffs, and each behaves differently
Not to be condescending, but think you need to do some more research before just buying a part and bolting it in
FatBrian81;
the 92.5+ supra doesn't have a solid rear axle, it's IRS
05-09-11, 10:21 PM
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some additional info
http://www.supraforums.com/forum/sho...automatic+diff
http://mkiv.supras.org.nz/specs.htm
if you have the Royal Purple in there now, don't dump out it.
There's no adjusting needed (since there's no clutch discs) , it was a fully 100% working rear diff
who did the installation work?
here's some info for the rear axles, in case something was followed....
http://www.mkiv.com/manual/manualtt/...ent/index.html
my current SN has a low thread count and later join date.
But I've been on here since 1995! (yea I'm old
but I also know this car and it's parts)
http://www.supraforums.com/forum/sho...automatic+diff
http://mkiv.supras.org.nz/specs.htm
if you have the Royal Purple in there now, don't dump out it.
There's no adjusting needed (since there's no clutch discs) , it was a fully 100% working rear diff
who did the installation work?
here's some info for the rear axles, in case something was followed....
http://www.mkiv.com/manual/manualtt/...ent/index.html
my current SN has a low thread count and later join date.
But I've been on here since 1995! (yea I'm old
but I also know this car and it's parts)
Last edited by dumdumgreg; 05-09-11 at 10:25 PM.
05-13-11, 09:45 AM
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Well i mean why does it act so different on turns, shouldnt it act the same regardless which way you turn? Maybe it is axel but i dont really see how bad axel could have this outcome.
Sry late reply.
Sry late reply.
05-13-11, 10:02 AM
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Well i mean why does it act so different on turns, shouldnt it act the same regardless which way you turn? Maybe it is axel but i dont really see how bad axel could have this outcome.
Sry late reply.
Sry late reply.
05-13-11, 11:14 PM
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cause you say you "swing the tail out" so your attempting to drift through the turn?
if so, thats not what a Torsen is built for, nor will it behave in a way you want for drifting
The Torsen is a gear assembly either it's working or a total failure scenario
http://auto.howstuffworks.com/differential6.htm
Last edited by dumdumgreg; 05-14-11 at 08:57 AM.