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PostPosted: Wed Sep 04, 2013 2:59 am 
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Group N

Joined: Tue Feb 16, 2010 4:05 am
Posts: 207
Location: Germany
Car Model: ST185 CS/RC
My CS was owned by a guy who work at Toyota Germany in Cologne. In the time he owned it he blew the engine and bought a new old stock group N spec engine from TTE that came in a wooden box with a uge TRD logo and mounted it into the CS.

He also replaced the rear diff by a two way LSD.

I took it out as it wend more and more noysie in the last years. Maybe someone have a idea what kind of diff it is. Two of the housing srews had drilled heads what let me think it may be a rally part from TTE:

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PostPosted: Wed Sep 04, 2013 7:50 am 
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Group N
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Joined: Tue Apr 10, 2012 9:27 am
Posts: 409
Location: Chirnside, Scottish Borders
Car Model: ST205
I think that diff is an "Im a lucky bastwerd to own such a car"

Not clue as to what diff it actually is but good luck

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PostPosted: Wed Sep 04, 2013 6:56 pm 
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Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205
It should be possible to view the cam and pawl through the holes in the central diff housing. This will allow you to confirm if its a two-way diff. The diagrams on the Cusco web site illustrate this. It won't tell you if its TTE although I guess if you stripped it down to the component parts there may be some clues.

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PostPosted: Wed Sep 04, 2013 7:45 pm 
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Group N

Joined: Tue Feb 16, 2010 4:05 am
Posts: 207
Location: Germany
Car Model: ST185 CS/RC
Will defently take a closer look at it when I have more time. Currently preperating the car for a one week trip through Switzerland.

Replaced the diff temporary with a stock ST205 one I´ve bought used. So I´m able to work on the 2way over the winter. Hope it´s only a bearing that is worn. Can´t see any damage on the diff itself and it´s drive, but found a lot of shavings on the magnetic drain plug. It is still working, but sounds very strong, espacially at downhill driving.

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PostPosted: Wed Sep 04, 2013 11:39 pm 
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Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205
I would have thought the car would feel quite different with a standard ST205 Torsen LSD compared to a two-way clutch type LSD. A two-way diff is normally only used for straight line sprints and drag racing as the car will tend to understeer on corner turn-in. The 1.5 way diff unlocks as you come off the throttle so the car should turn in better. All this is theory so would be interested to hear about your actual driving experience.

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1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
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PostPosted: Thu Sep 05, 2013 1:07 am 
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Group N

Joined: Tue Feb 16, 2010 4:05 am
Posts: 207
Location: Germany
Car Model: ST185 CS/RC
Yo're right. The car tend less to understeer indeed! Didn't drove it on the track since replacing the diff but did a fast testdrive on one of my favorite forest roads.

Also had a custom wheel aligment with much more chamber done yesterday which made the car even better to handle.

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Last edited by XLarge on Thu Sep 05, 2013 6:40 pm, edited 1 time in total.

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PostPosted: Thu Sep 05, 2013 6:35 pm 
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Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205
Thanks for the feedback, good info :)

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1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


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PostPosted: Fri Sep 13, 2013 7:48 pm 
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Joined: Wed Sep 23, 2009 9:12 pm
Posts: 27
Car Model: None
Looks like a cusco, the tte diffs were xtrac and they wont fit in standard casing as yours as the drive shafts are a lot bigger than standard.

Sent from my GT-P5110 using Tapatalk 2


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PostPosted: Fri Sep 13, 2013 10:10 pm 
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Group N

Joined: Tue Feb 16, 2010 4:05 am
Posts: 207
Location: Germany
Car Model: ST185 CS/RC
I´ve seen the Xtrac. It´s really totally different, including the frame it sits on and the driveshafts.

But maybe TTE homologated a LSD that fit into the stock housing for Group N .

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PostPosted: Fri Sep 13, 2013 10:18 pm 
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Not that I am aware of, they used trd ones in the group n

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PostPosted: Tue Sep 17, 2013 11:34 am 
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Group N

Joined: Tue Feb 16, 2010 4:05 am
Posts: 207
Location: Germany
Car Model: ST185 CS/RC
Did a small research and came across www.gtfours.co.uk where I found pictures of the Cusco and a TRD 2way LSD. Looks like the one I found in my car:

http://www.gtfours.co.uk/pics/trans/rea ... r_diff.htm

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PostPosted: Wed Sep 18, 2013 4:41 pm 
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Group N
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Joined: Fri Mar 30, 2012 8:31 am
Posts: 332
Location: Wiltshire
Car Model: ST205
Just wondering if it behaves like this LSD?

How to check for a Limited Slip Differential The Easy Way! (LSD DIFF)

http://www.youtube.com/watch?v=TI8ewn6HOjg

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