CHUNKY.MONKEY.

hi all i have a 99' jdm sti
it has no dccd so how does mine work ? does my diff shift power automatically
or does it just stay at the same split and what it this 60 rear 40 front?
also does my car have a limited slip or anything? cheers people

CHUNKY.MONKEY.

anyone

CHUNKY.MONKEY.

?????????????

Tidgy

iirc the power splity on the classics is locked if its not got dccd, i may be wrong though

CHUNKY.MONKEY.

what does locked mean mate

Tidgy

as in 60/40 split and stays at that.

stigaz

yep will be 60 % power to rear wheels 40% to the front.

stoneface

iTrader: (6)

Its 50:50 split and is an open diff.

CHUNKY.MONKEY.

which is it 60:40 or 50:50
and what is closed and open?

subaruturbo_18

lol from reading your first post, to your last you sound even more confused than what you started at

GC8

Theoreticaly it is 50:50.

Steve Whitehorn

iTrader: (13)

To clarify
50:50 Front Rear
with open viscous center diff

In standard guise.
Will power understear.
And lift off/trail brake overstear.

stigaz

so am i now, the centre diff on my car was knackered the garage replaced it but still had the same problem ,they took the car back did some mystery work on it,fixed it ,and told me it was now running 50/50 instead of 60/40 .by that time (4 weeks later) (and near £1000) i was just happy to have the car back in working order.

finalzero

DCCD equipped car's have a viscous coupling centre diff, basically two big magnets floating in some fluid type stuff.

When a voltage is applied the centre diff starts to 'lock' by reducing the amount of slip so power goes from being transferred mostly to the rear wheels to being shifted equally front and back to full lock.

RA's are quite lairy with the diff in open mode (most of the power is sent to the rear wheels), they can and will bite back hard in the wet.

GC8

Would pointing out that no Type-RAs had DCCD and that only STI Type-RAs did, make a pedant?

Steve Whitehorn

iTrader: (13)

LOL

DCCD only on STI Type RA and R.

The split here is rear bias but not a fixed percentage. Depending on where it is set - for example it might be sending 69 to rear 31 to front or move it again it might be 58 to rear and 42 to front.
No matter where you set it - it is probably going to power overstear (its just to what degree). This makes these cars potentaily more of a handful and a touch more difficult to control on the limit.

finalzero

Aye I can vouch for that