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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Diff ratio in standard G series Torsen?
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Mon, 16 August 2004 10:02
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Does anyone know what the final drive ratio is on a Standard G series Torsen Diff?
I am also considering getting rid of it when the 1JZ goes in becuase progressive LSD shites me right off, i.e. One wheel, then two, then one, then two, etc,etc...
I dont really want to change the diff housing, so what centre would be a suitable replacement?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Mon, 16 August 2004 11:45
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What do you mean propressive LSD? If you have a clutch pack LSD it should just spin both wheels unless its f**ked. Are you sure you even have an LSD, most I've seen GZ20's dont.
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Location:
Tasmania
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Mon, 16 August 2004 13:45
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If you want a G series clutch plate LSD, get a center from a 4wd HiLux, or MA70 Supra. You should be able to keep your crown wheel and pinion, just swap the very center diff parts.
I guess the TorSen diff was ment more for snow and safety on wet roads. Not so good for sport. Interesting.
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Mon, 16 August 2004 23:24
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My torsen LSD doesn't behave like that at all. In fact it behaves like a really tight clutch LSD. Are you sure you have a torsen?
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Mon, 16 August 2004 23:50
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| MR 1GGTE wrote on Mon, 16 August 2004 19:32 |
Does anyone know what the final drive ratio is on a Standard G series Torsen Diff?
I am also considering getting rid of it when the 1JZ goes in becuase progressive LSD shites me right off, i.e. One wheel, then two, then one, then two, etc,etc...
I dont really want to change the diff housing, so what centre would be a suitable replacement?
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Thats sounds more like a clutch pack LSD that is getting a bit tired. You can get the clutches re-tightened/shimmed on these.
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Tue, 17 August 2004 03:07
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Apparently my axel code matches that of a factory fitted torsen LSD...
Might have to look into getting it tightended then...
Gear ratios tho?
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Tue, 17 August 2004 03:33
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Diff ratio is determined by the crownwheel and pinion, NOT the diff centre. It's a totally separate issue.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Tue, 17 August 2004 06:19
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Don't always believe the plate, get underneath and check out the car for yourself - many times things get swapped/changed long before you even see the car.
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Registered:
June 2002
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Re: Diff ratio in standard G series Torsen?
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Wed, 18 August 2004 06:57
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I was under the impression the JZA70 was the only car to come equiped with a "G" series TORSEN (G**9 would be on the build plate)
As the Soarers JZZ30/Supras JZA80 have a "A" or "B" series diff.
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Wed, 18 August 2004 07:13
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You're correct about the JZZ30 Soarer, but it's possible the earlier Soarers (eg MZ20) were available with a G series torsen centre. I've never actually seen one, but Toyota are good at mix'n'matching parts.
AFAIK if your Soarer was originally fitted with a torsen, the axle code on the build plate should read "Gxx9". A clutch LSD will be Gxx5 and a single-spinner (most common) will be Gxx4.
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Location:
Sydney
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Wed, 18 August 2004 22:17
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whats your trans code, as far as I knew only jza70s had torsens.
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Thu, 19 August 2004 10:42
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Im going outside to check my trans code now, if i dont come back avenge my death...
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Thu, 19 August 2004 10:50
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ok the axel code is G254? what does that mean???
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Thu, 19 August 2004 11:36
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That code means you have a 4.556 non-LSD diff, just as most GZ20's have, and the reason you're bitching about your LSD not working properly 
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Thu, 19 August 2004 22:19
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Thu, 19 August 2004 22:57
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| justcallmefrank wrote on Thu, 19 August 2004 21:06 |
That code means you have a 4.556 non-LSD diff, just as most GZ20's have, and the reason you're bitching about your LSD not working properly
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It means once the 1jz is in you'll be pulling big single spinner burnouts everywhere you go
4.556:1 will make for some terrific acceleration off the line, if you ever get traction.
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Location:
Sydney
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 00:17
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and ga70s manuals were fitted with that ratio but with the 5 on the end. LSD
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 01:11
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LSD was optional on the GA70's... they more often come with open diffs.
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Location:
Sydney
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 03:00
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even the manuals?
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:12
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Then my diff is well and truly fuct...
I chucked some chemi weld in the 1GGTE last night so I could go for one last thrash, went down to the local park and ripped a fat burnout in the carpark, two wheels, two lines, lots of smoke...
Open wheeler diffs become fucked when they start doing LSD burnouts
Even i know this...
Right this thread will be changed to what diff that is LSD will fit into my diff housing?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:15
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JZA70 Torsen or MA70 clutch-LSD should both fit, but it might be easier to swap the whole thing over, cheaper too, still requires a removal and install.
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:33
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yes but the brakes and shit are different on my car than a supra...
What is the differences between the clutch LSD and the Torsen??
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:39
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| MR 1GGTE wrote on Fri, 20 August 2004 14:33 |
yes but the brakes and shit are different on my car than a supra...
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WTF? He's talking about swapping the diff, not the brakes.
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What is the differences between the clutch LSD and the Torsen??
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http://www.google.com
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:47
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| Norbie wrote on Fri, 20 August 2004 14:09 |
| MR 1GGTE wrote on Fri, 20 August 2004 14:33 |
yes but the brakes and shit are different on my car than a supra...
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WTF? He's talking about swapping the diff, not the brakes.
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What is the differences between the clutch LSD and the Torsen??
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http://www.google.com
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I thought he meant swap the entire diff over, uni joints and all??
Then again I forgot about the IRS for a second there...
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 04:47
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Oh yeah dont believe in google, im just too lazy...
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Location:
Sydney
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 05:47
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howthingswork.com explains a torsen too
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Location:
Brisbane
Registered:
May 2002
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 06:14
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| MR 1GGTE wrote on Fri, 20 August 2004 14:47 |
I thought he meant swap the entire diff over, uni joints and all??
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Uni joints? Have you ever looked under your car??
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Diff ratio in standard G series Torsen?
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Fri, 20 August 2004 06:53
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| Norbie wrote on Fri, 20 August 2004 15:44 |
| MR 1GGTE wrote on Fri, 20 August 2004 14:47 |
I thought he meant swap the entire diff over, uni joints and all??
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Uni joints? Have you ever looked under your car??
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Obviously not well enough to know what i am talking about...
I will shut up now...
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