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Ralliart viscous coupling revealed..


vrfour_nz
Junior Member


Galant VR-4 org Post #: 715465 posted 10/29/08 02:21 AM     Remind Me!  Send Private Message   Edit Post      
If any of you run plate lsd's front and rear in your VR4,you will know that understeer can be a issue..especially on tarmac with rally tyres The ralliart viscous coupling RA737828A1 is what I have used in my rally car..given details on the box +30% 23.1KGf/100rpm,has transformed the car when pointing into corners!
u

Posts: 55 | From: Wellington,New Zealand | Member Since: 10/27/08 | IP: (218.101.88.68) | Report this post to a Moderator

bazeng
work in progress


Galant VR-4 org Post #: 715482 posted 10/29/08 07:29 AM     Remind Me!  Send Private Message   Edit Post      
Very nice!

Can you take more pics on the other side also?

Did you get it new and how much?



Australia's Slowest VR4

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G Galant VR4.org Moderator
JDM Unit
486/1000


Galant VR-4 org Post #: 715548 posted 10/29/08 12:32 PM     Remind Me!  Send Private Message   Edit Post      
Is that ra # the part #?



www.japanesenostalgiccar.com
www.nostalgic.co.jp

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Bimmubishi
giant log


Galant VR-4 org Post #: 715549 posted 10/29/08 12:49 PM     Remind Me!  Send Private Message   Edit Post      
Yes G, it is. 600 Euros! Brace yoself.

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Bimmubishi
giant log


Galant VR-4 org Post #: 715560 posted 10/29/08 01:26 PM     Remind Me!  Send Private Message   Edit Post      
Anyone know anything about this one?


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G Galant VR4.org Moderator
JDM Unit
486/1000


Galant VR-4 org Post #: 715662 posted 10/29/08 06:21 PM     Remind Me!  Send Private Message   Edit Post      
What's that #? xd ????



www.japanesenostalgiccar.com
www.nostalgic.co.jp

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chris
Unregistered


Galant VR-4 org Post #: 715666 posted 10/29/08 06:31 PM     Remind Me!  Send Private Message   Edit Post      
the million dollar question is.... where can i get one?? i do live about 45min away from dsg.. hook it up alex

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Dialcaliper
Flagration Member
1269/2000


Galant VR-4 org Post #: 715675 posted 10/29/08 07:00 PM     Remind Me!  Send Private Message   Edit Post      
That's awesome. $780 at the current exchange rate is cheap compared to a plate or helical center diff, or about comparable if you throw in the cost of a 4-spider - is that price delivered to your shop or the catalog price from Britain?

Also, +30% would mean a brand new OEM VCU is 17.8kgf/100rpm, before it degrades

Our final drive/front diff ratio is 3.545 compared to the WRX's 3.9, but even still, that's miles better than the stock, or even the moderate "STI" VCUs (10kgf and 12kgf - ours would be the equivalent of a 16kgf (21kgf for the Ralliart unit compared to the 20kg JDM STI VCU) due to the gearing difference. The stock subaru VCUs are really pretty pathetic it sounds like.



1269/2000 Summit White


Edited by Dialcaliper (10/29/08 08:43 PM)

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chris
Unregistered


Galant VR-4 org Post #: 715677 posted 10/29/08 07:05 PM     Remind Me!  Send Private Message   Edit Post      
click

i just found that link... hmmm anyone have a ralliart catalog with parts for the vr4?

"At Text Spares, we stock thousands of Mitsubishi Ralliart Parts right at your fingertips. You can now search for your own Mitsubishi Ralliart Car Parts Online, order them, and have them delivered directly to your door without leaving the comfort of your armchair."

thats what i am talking about.. ill pay to get whatever shipped from the uk.

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kartorium
hillbilly racer
334/1000


Galant VR-4 org Post #: 715916 posted 10/30/08 01:47 PM     Remind Me!  Send Private Message   Edit Post      
^^sorry dude, not gonna happen. You're not gonna find any ralliart parts at that place.

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bazeng
work in progress


Galant VR-4 org Post #: 716007 posted 10/30/08 05:22 PM     Remind Me!  Send Private Message   Edit Post      
I'll chase it up with Ralliart Australia...
See how we go...



Australia's Slowest VR4

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vrfour_nz
Junior Member


Galant VR-4 org Post #: 716026 posted 10/30/08 06:31 PM     Remind Me!  Send Private Message   Edit Post      
This could be a early Group A viscous..I remember the motorsport viscous couplings being numbered like this
Quoting Bimmubishi:

Anyone know anything about this one?





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vrfour_nz
Junior Member


Galant VR-4 org Post #: 716031 posted 10/30/08 06:41 PM     Remind Me!  Send Private Message   Edit Post      
The ralliart part number actually refers to a Evo 1-3 CD-CE9A Lancer Group N viscous coupling..I can enquire with ralliart nz if anyone is interested..


Edited by vrfour_nz (10/31/08 12:48 AM)

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3rdstrikedsm
Now mandatory for Wendy's Chili to come with cheese


Galant VR-4 org Post #: 716034 posted 10/30/08 06:48 PM     Remind Me!  Send Private Message   Edit Post      
check with Adam at devo tuning he used to deal with them. I remember one he had in his shop. He also knows where to send them to have them altered.



1994 supra 6spd 612whp and more to come soon!
1995.5 Audi s6 Vi-pec powered!

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Jonvr4
Unregistered


Galant VR-4 org Post #: 716036 posted 10/30/08 06:53 PM     Remind Me!  Send Private Message   Edit Post      
why not just get a clutch type?

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harrisrallysport
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Galant VR-4 org Post #: 803992 posted 06/20/09 08:51 PM     Remind Me!  Send Private Message   Edit Post      
Just came arcoss this thread and was wondering if anybody can tell me what mine is. I had been told it may be a ralliart unit. The numbers on it are XD373828. It also has 92.4.21 no.5 on it.

Can anybody help?

Thanks

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Bimmubishi
giant log


Galant VR-4 org Post #: 804875 posted 06/23/09 11:18 PM     Remind Me!  Send Private Message   Edit Post      
I have a Ralliart one in my dogbox. It might still be different than the above one since there is a motorsport version as well as a upgraded street version. The one in my box won't physically fit onto the syncronized box shaft. It is too wide.

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mrgravel
Unregistered


Galant VR-4 org Post #: 817360 posted 08/04/09 07:42 AM     Remind Me!  Send Private Message   Edit Post      
Any news on this ? im in the market for one of these are they still available or does anybody have a second hand one for sale ?

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mrgravel
Unregistered


Galant VR-4 org Post #: 817361 posted 08/04/09 08:01 AM     Remind Me!  Send Private Message   Edit Post      
Are these still available ? im in the market for one dooes anybody want to sell one ????

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randedge
Unregistered


Galant VR-4 org Post #: 849539 posted 11/14/09 01:24 AM     Remind Me!  Send Private Message   Edit Post      
I have also heard of people making their stock VCU stiffer.
How exactly is this done? And who does this service? These things are sealed right? Not sure how such a thing can be performed really. In fact I doubt the info - although I have heard of it more than once, so I guess it's worth asking.


Edited by randedge (11/14/09 01:25 AM)

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vrfour_nz
Junior Member


Galant VR-4 org Post #: 861688 posted 12/31/09 09:20 AM     Remind Me!  Send Private Message   Edit Post      
yeh i might have a few in a box somewhere,i'll have to dig and have a look if you're still keen

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turboaddict
Barnes


Galant VR-4 org Post #: 861780 posted 12/31/09 06:00 PM     Remind Me!  Send Private Message   Edit Post      
I have seen a pic of a clutch lsd that fits in the stock vicous location. Has any see or know anything about these???
Thanks

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cheekychimp Galant VR4.org Moderator
Director of Housing and Urban Development, and carbon/kevlar balls


Galant VR-4 org Post #: 861817 posted 12/31/09 09:15 PM     Remind Me!  Send Private Message   Edit Post      
The Cusco centre clutch diff has a machined ring that eliminates the oem viscous coupler.



Getting old sucks ... but it sure beats the alternative !!!

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turboaddict
Barnes


Galant VR-4 org Post #: 864210 posted 01/11/10 02:52 AM     Remind Me!  Send Private Message   Edit Post      
so no one has an idea on the vc replacement? Would something like that be beneficial? A clutchpack replacement for th vc or would this be a waste of time? thanks.

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cheekychimp Galant VR4.org Moderator
Director of Housing and Urban Development, and carbon/kevlar balls


Galant VR-4 org Post #: 879905 posted 03/07/10 02:56 AM     Remind Me!  Send Private Message   Edit Post   
Raising this from the dead.

Anyone who has used one of these or simply understands the physics of these a little more can you spell out why they work to counteract understeer? Am I correct in assuming they require more of a torque split front rear before locking up and therefore let the rear end go more before transferring power forward allowing the car to rotate further before 'catching' the tailslide.

If so, would one of these work well in conjunction with a centre differential that offered a rear biased split?



Getting old sucks ... but it sure beats the alternative !!!

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