E-locker a Reality.

MiddleAgeSubie said:
Ok, so how much lock does dccd provide? Does it really lock? Because if you can fully lock the center and the rear as on a full time 4x4 system, then I assume you can start worrying about the robustness of the various parts. Slippage prevents drivetrain breakdowns. Otoh, street tires will probably never have enough grip for anything to break:lol:
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DCCD locks up pretty hard. If you turn on a sealed road and come off the throttle, the car stops pretty quickly at the slow speeds I do it. Here are 2 videos of it in action

[ame="https://www.youtube.com/watch?v=hoemHADzQvg"]Forrie at DD's - YouTube[/ame]

[ame="https://www.youtube.com/watch?v=ibeqYONr8VU"]Racecam Watagans May 2015 - YouTube[/ame]

As for not having enough grip and breaking things, well, here is my WRX. Launches pretty hard on road tyres in slippery conditions- the same tyres (in a different size) I run on the Forrie. Haven't broken anything yet. lol
[ame="https://www.youtube.com/watch?v=FwQSDawWDZ4"]Tony's WRX - YouTube[/ame]
 
El_Freddo said:
Rally, I'm keen as mustard! What's stopping me:
1) young family
2) cost of and access to parts
3) how to mate the r180 diff to the L series rear shafts or beefed shafts to the L series outer stub axles
4) too many other projects on the go

I've always thought it could be done with an r180 diff - apparently ARB used to make an air locker for them back in the day. I've also *heard* that the factory Nissan r180 live axle diff lock will fit in the r180 I dependant diff housing...

Options options.

Definitely something I've always wanted to do since having a welded rear diff - point and shoot off-roader with that diff. Having the AWD gearbox killed that mod plus I missed the 4wd on the fly that the L series offered too ;)

I'm hoping I'll get there one day!

Cheers

Bennie
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The ARB availability story might have come around because a bloke in Melbourne modified a Hi lux diff to fit a Subaru, and used an ARB centre. I don't know of anyone using a Subaru housing and modifying the ARB centre to fit a Subaru
 
Rally said:
The ARB availability story might have come around because a bloke in Melbourne modified a Hi lux diff to fit a Subaru, and used an ARB centre. I don't know of anyone using a Subaru housing and modifying the ARB centre to fit a Subaru
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I'm aware of Les's efforts - met him a number of years ago and have a DVD video somewhere of his efforts.

The r180 ARB locker was for the Nissan/Datsun and was never produced with the Subaru in mind ;)

Cheers

Bennie
 
video to come
 
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scalman said:
thats awesome work for DCCD. do you need more for offroad ? front lsd diff would help no ? and too much grippy tires would be not best thing for lockers. less chance to brake something.
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The WRX components were engineered for street performance and can take grippy stock sized tires. I am sure it will slip if it gets to that point.

Breaking things is really an issue with fully locked rigs and aired down huge tires, when only one tire has grip.

The DCCD seems to allow plenty of slippage judging from the grass video. No worries, then.

Still, the most cost effective solution for most people would be to simply upgrade to a VDC Subaru, which would not have any issues with the scenarios in the videos. Very, very few people can take/would be willing to take advantage of the small footprint and short WB of the older Foresters to justify this degree of modification.
 
Their x mode is even better. But why they couldnt make that on different levels and give you options to choose how hard you wanna traction control to work. Is that so hard do something similar as toyota and some others did as sand/rocks/mud options. Its nothing more then programed levels of traction control.
Why we cant have that? Or somehow make that.
Yh saw videos with independant front suspension 4wd cars that put locker on those axles and then it brakes because too much torque too grippy tires and one in air and other side just snaps.
 
MiddleAgeSubie said:
The DCCD seems to allow plenty of slippage judging from the grass video. No worries, then.
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The DCCD on full lock doesn't allow for slippage, at least not on slippy surfaces like gravel, sand, snow, mud, grass...but sure does on grippy surfaces and then you hear some heavy "clonks" from the clutch plates slipping. At idle with DCCD locked, you can't make a U-turn on tarmac without stalling.
 
scalman said:
thats awesome work for DCCD. do you need more for offroad ? front lsd diff would help no ? and too much grippy tires would be not best thing for lockers. less chance to brake something.
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I am running a helical front lsd out of an 06 STI. A plated diff would be better and a locker better again. While not ruling a front locker out totally, there are a number of major obstacles in the way. These include space, crown wheel bolt pattern, spline count, axle retention and more. I am instead looking at a plated front diff.

I only lock the dccd on non sealed roads when it is needed, and once past the difficult section, I open the diff up. I think if the surface you are on, regardless of tyre, has enough grip might be enough to break something. Feels that way at least.
 
Keep in mind that a wrx on standard road tyres on a sealed road will have more grip than any sized off road tyre on an unsealed road. Any slippage in the videos above would be down to the front or rear diffs, not the centre diff.
 
Rally said:
I am running a helical front lsd out of an 06 STI. A plated diff would be better and a locker better again. While not ruling a front locker out totally, there are a number of major obstacles in the way. These include space, crown wheel bolt pattern, spline count, axle retention and more. I am instead looking at a plated front diff.

I only lock the dccd on non sealed roads when it is needed, and once past the difficult section, I open the diff up. I think if the surface you are on, regardless of tyre, has enough grip might be enough to break something. Feels that way at least.
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yeah some thinking must be put into what you using when and how. not as me just cruising along :) . sometimes just changing gears from D to 1 or 2, or turning off VDC traction control for fun. but mostly just drive on D all times.
i just wonder , somehow couldn't find info about how VDC system with 55/45 split works when i turn it off. so no more traction control and no more braking wheels no more cutting power. they just spin freely, but do center locks or do something else happens there i don't know that.
 
Rally, a plated front diff might be more efficient than a helical in some situations but will still allow a wheel in the air to spin and suddenly lock which could cause some breakage. Another disadvantage would be wear of the plates meaning you have to open the gearbox for maintenance/repair.
 
Yes, agreed, except I think the breakage issue can be addressed by using sti front axles.
 
MiddleAgeSubie said:
Ok, so how much lock does dccd provide?
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It's not actually a locking centre but comes close. The DCCD is a very complicated bit of engineering with multiple types of LSD controlled by weights & electronics. In use, it's similar to a locking centre. It will still cause binding in the drivetrain on high grip surfaces
 
Ok, thanks, so it does get there.

Good stuff. I am glad some folks managed to get that on Foresters. Great upgrade.
 
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No, and there won't be for a while. It's the hottest time of the year right now, and I have to be take it easy during summer for health reasons. Besides, Dave is away for a few weeks and if anything needs looking at, best he be around to either sort it out or tow it home.
 
I need a Dave.
 
Ben Up North said:
I need a Dave.
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Well he’s in Queensland now, just pop down and say hello. He’s the big fat guy on the jet ski. If you have been to Mackay, he looks like he comes from there! :lol:
 
Rally said:
If you have been to Mackay, he looks like he comes from there! :lol:
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So he either looks like a miner or a methhead.

He’s the big fat guy on the jet ski
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Miner it is then. Is he surrounded by XXXX cans? (that'll make him harder to spot):rotfl:
 
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