Subaru (R160 diff) Rear Locker project

I find the majority of the time the centre diff isn't really an issue, it's more the open diffs front and rear which cause me to loose traction and come to a stop. On any surface this is my biggest issue. Second behind that is lack of engine power, but that's a different story all together :iconwink:
 
Nachaluva said:
jf1sf5, you will have LOTS of people on here very interested in the ERM locker :lildevil: Please keep us posted on any updates.

My understanding of the DCCD centre is that the driver dials in whatever ratio he/she wants & the diff sticks to that, whether it is 20/80 or 50/50. I'm not sure if it "locks" the diff though... It is certainly a step up from the standard vLSD centre however. It also seems to be pretty strong going by the high performance engines some hook up to it :twisted:
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Your understanding is wrong, the DCCD only goes from 35f/65r to 50f/50r, they don't like being driven in 50/50 mode on bitumen (remembering they were designed for rally use) there is no need for a controller but they are better for track work or off road where you can dial in whatever you want between the 35 & 50 parameters.
 
I have already had diagonal wheel spin up a hill with both rear wheels and 1 front wheel on the ground and all the power went on the other front wheel because the center diff is not strong enough...so thats 1 wheel drive, and the wrong one !
 
jf1sf5 said:
I have already had diagonal wheel spin up a hill with both rear wheels and 1 front wheel on the ground and all the power went on the other front wheel because the center diff is not strong enough...so thats 1 wheel drive, and the wrong one !
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I have had this happen quite a few times. But for the $$ in comparison to how often that happens I can't justify the cost. But again I don't have money pouring out of my ears to afford it either..
 
So do you think that with a DCCD, I could have gone up my hill ?
 
I think it would have got you up the hill or spun the diagonal rear also.

I'm sold on the idea of a helical front diff but I'm not sure if I should get the cheap OBX or save for the Quaife.
 
Mmmmmh, not sure I would have got up that hill then.

And as the DCCD is a sort of a clutch type diff, it maybe gets used or burnt ?
 
Yeah the OBX is a copy of the quaife.

The DCCD would probably burn out if you drove about in 50/50 lock on tarmac all the time. I can't see it having any problems if used correctly though.

Bear in mind I've never seen, owned or driven one.
 
I have read here somewhere that the center LSD can go in the rear diff with little modifications...what about a DCCD, is it about the same size ?

Well, I think I am going to find one of those...
 
I think you'll find most of those articles about the washers are quite old, I'm pretty sure OBX has since uprated the quality of their diffs since they were written, also most of the failures were on cars punching pretty high HP numbers through them, with the Subi it's a bit more spread out.
 
jf1sf5 said:
I have read here somewhere that the center LSD can go in the rear diff with little modifications.
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Not sure that this is any where near accurate. I'd call it impossible without redesigning the rear diff...

Biesel said:
Stilson, from what i've read the obx diff is a great diff as long as you replace the factory washers.
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d_generate said:
I'm pretty sure OBX has since uprated the quality of their diffs since they were written, also most of the failures were on cars punching pretty high HP numbers through them,
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I hope so! My LSD is waiting on me to find a new centre diff (lockable) then I'll have my "fully sick" gearbox ready to go into Ruby Scoo - that'll be an awesome day!

Cheers

Bennie
 
I was just curious about the DCCD, but I'm still going for the rear locker, and after that maybe a center locker, but one thing at a time, I'm swiss but not rich !
 
Did you buy an obx front diff el freddo?

They don't seem to make one for 6speeds :( but i see JDM sti front diffs come up on ebay for very cheap. like $280 aud but with $140 shipping. I don't know how the STI diffs rate.
 
Biesel said:
Did you buy an obx front diff el freddo?
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Yeah I did. Venom's got one in his H6 and it goes well - so I figured it should go well in the L series as well. But I've got to get a "new" secondhand locking centre diff in good/great condition as mine turned out to be fried - the fella building the box said he's never seen one so bad and was surprised it was still in one piece!

Biesel said:
They don't seem to make one for 6speeds :( but i see JDM sti front diffs come up on ebay for very cheap. like $280 aud but with $140 shipping. I don't know how the STI diffs rate.
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Probably more of a case that they haven't opened up a 6 speed to see if it will fit (expense) or they haven't copied an expensive unit that has put in the research!

The STi LSDs should be good - they're factory to begin with, but the type of LSD that they are could be the main issue with offroading - that usual thing of the difference between bitumen and offroad use...

Cheers

Bennie
 
El_Freddo said:
Yeah I did. But I've got to get a "new" secondhand locking centre diff in good/great condition as mine turned out to be fried - the fella building the box said he's never seen one so bad and was surprised it was still in one piece!

Cheers

Bennie
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Damn, that's rotten luck.
 
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