greasemonkey

You probably know this, but it's the centre diff that's adjustable, not the rear.

Theoretically, well, anything's possible theoretically. Practically, depends how much you want to spend, whether you want to keep the UK car's gearing, or adopt the shorter Japanese ratios, whether you want to integrate the proper R180 rear diff, shafts, hubs, brakes and so-on.

Difficult to suggest a price without knowing which way you plan to proceed. In addition, the DCCD gearboxes, ECM's and STi dashboards aren't especially easy to get hold of, and standalone DCCD units (if you wanted to drop one into an existing UK gearbox) are even harder to find, so to a large extent the price depends on how badly you want to do it, and how hard a bargain the seller wants to drive.

From a practical point of view it'd probably be easier to by a Type R/RA than it would be to get all the bits you'd need to do the job properly.

If you go that route you'll also be able to sell the car on at a realistic market price. If you bought all the bits for a UK car and subsequently sold it, there's no way you'd get back what you spent.

[Edited by greasemonkey - 12/2/2003 11:29:39 AM]

Nezz10

As per title, how much would it cost to get a system like the RA's etc with the adjustable rear diff control by the handbrake.

Is is at all possible on a UK?

Prices, places, hints and tips welcome!

Floyd

iTrader: (9)

Andy F was selling a system IIRC.

F

Nezz10

I didn't want to change the gearing to keep the costs down so I guess it is just the centre diff I need to change + loom/switch etc.

beryllium

i have already talked the same question.
if i have well understood,you must change the center diff with the center shafts,and the rear crownwheel because genuine center ratio on european cars is 1,10,you must add the dccd ecu,the wiring harness,and switches.myabe the dashboard.
dccd:15k with drop gears
rear crownwheel:4k
ecu,etc:5k (avalaible at rallispec)
dashboard : 6k (if enough avalaible)
anybody can confirm the prices

Adam M

if you want rear torque bias, you can buy a kazz diff which isnt adjustable.

Think theo has done this already.

You don't nede to do R180 rear diffs and driveshafts etc.

but to my knowledge the centre diff is not compatible with the drop gears of the UK transfer case which is 11:10 instead of 10:10 of the jap cars.

This gives you two options, neither is expensive in parts, but they may be in labour.

You can fit the crown wheel from a sport which is 3.9:1 to your rear diff, or you can change both your front and rear final drives to 4.44 (easier to come by. After this via either method, just bolt on the jap 10:10 transfer case and off you go.

The diff unwired will be completely open and thus will have little LSD effect (does have some but not much). Moraymackenzie has fitted this to his car, although he had a jap car with 4.44 final drives anyway.

Note that changing the final drive up will mean your speedo over read.

would be nice if someone could confirm that the drop gears can't be transferred to the DCCD in which case it would be a straight awap.

Andy.F

I can confirm that the dccd has a dedicated set of drop gears with additional roller bearing. As far as I'm aware they only come in 1:1 ratio. (either 33:33 or 30:30 I forget. UK/Euro is 33:30)

I have a dccd and a 3.9 plated R160 rear diff for sale which would just bolt in to a UK/Euro spec car.
http://www.scoobynet.co.uk/bbs/Forum.asp?ForumID=17

No controller with it so it runs as an open diff, or as Cusco call it ....tarmac spec Town end garage do a mappable ecu to suit this diff for around £450 IIRC.

Andy

[Edited by Andy.F - 12/2/2003 11:19:30 PM]

RB5_245

Andy, how difficult would it be to get this diff on to my car with GEMS(has DCCD control)? Any Ideas? Also, are the dash light's just an indication (so could do without them)?

I'm hoping for 'Don't be daft dave there's no chance'. That way i don't have to looking behind the couch for change to fund this

Adam M

Thanks andy, does it mean you bought a cw+p from a sport?

what have you replaced it with?

the dash lights are not a requirement, they are just a helpful reminder.

The gems can be made to control the dccd, but I would rather do it via the townend route personally.

I think steve simpson did offer the dccd mappign as part of the gems package though.

Andy.F

No, the early Ra's with dccd had 3.9 plated rear diffs and ultra low gearbox ratios.
The CR box is still in the car but with a visco centre and 3.9 visco rear as fitted std in the non dccd Ra's of that year.

Andy

[Edited by Andy.F - 12/3/2003 6:26:55 PM]

Adam M

Did you not like the handling characteristics of the dccd?

thanks for the info on early RAs, was not aware of that.

Andy.F

The handling was much better with the dccd, no more understeer

I'd never get the money for the car with all the bits on it that I'm advertising, so it's going back to nearly standard (420bhp )
to sell.

Andy

Adam M

gotcha, didn't realise you were selling.

420bhp standard!