Bil

ive tried changing the DCCD


whats the point of it?

Mr Bat

You have to use it in conjunction with the water spray and gear change indicator and bleeper.. BUT only after you have fitted a cocklink

GC8

Special offer; get it now... Two bell-ends for the price of one!

white

RedScoob

From what I understand, the DCCD alters the amount of torque available to the front wheels in relation to the rears. In normal driving, you wouldn't expect to notice any difference, but in adverse road conditions and more agressive driving the DCCD allows the driver to change the characteristics of the all-wheel-drive to alter the car's handling and grip. All 4wd cars are inherantly "understeery" and by transfering more torque to the rear wheels you improve turn-in, but obviously in wet/ icey conditions the lack of power going through the front wheels is a disadvantage, so you use different settings for different conditions. It's all in the manual, but if you really can't tell the difference then you're not in the extremes where altering the DCCD will be of benefit.
Either that or the switch is broken.......
p.s. Great advice, Pete.

Shark Man

Depedning on which DCCD your on about, when it isturned off (i.e fully open), the car is in fact oversteery.

TonyBurns

iTrader: (3)

You have it the wrong way round
Open (or all the way back) and the car will understeer as the power is to the rear wheels forcing the nose out more, when locked the car will oversteer, though its not recommended to use lock on the road.

The general point is that it transfers power from the front to the rear and vise versa to improve the turn in of the car in corners, hence giving better stability and less under/over steer.
Is it worth it? try an STi without it fitted (pete wont know this as he has never tried a scoob with it fitted ) and you can tell the difference

Tony

ru'

rooferman

iTrader: (6)

Well on my sti ra if the diff is open(wound back,ie green light on)it certainly does not push the nose out....It is tail happy and as i am aware this is oversteer!

Sure your switch aint back to front

Elmer Fudpucker

'fraid I'm with Bill on this one,doesn't make a blind bit of difference to the way I drive my car.Unless you enjoy the unbearable low speed 'clonking'(and I have owned STi's with and without it)

The only time mine is ever used is when the g/f activates it by mistake,cos thats where the leccy window switch is on her Peugeot

TonyBurns

iTrader: (3)

Positive
It was the classics that suffered that problem, its not really possible to do it on a new age A-DCCD car as its computer controlled

Tony

PS just to point out what its doing, power to the rear forces the front of the car out as its being "pushed" causing understeer, when the power becomes more even the nose gets more grip as its not being pushed

dn12345

I'm with rooferman, with the diff open alot of torque to rear wheels = oversteer and tail losing fun esp in the wet. With it locked, a bit more understeer but doesn't slide out in the wet/snow.

rooferman

iTrader: (6)

The dccd on my car makes a huge difference to its handling/turn in/and stability in dry,damp,wet conditions.....even with only a slight adjustment of the controller.

I know my car has a helical front diff,maybe this is why the dccd acts differently to other dccd equiped cars?Its certainly handles completely different to my previous uk turbo which suffered from understeer.

scoobfan

Now now Simon !

Rob

pippyrips

if you are just driving around town etc you won't notice any difference. If hjowever you push the car you will...

Shark Man

Thirded, Mr burns obviously doesn't know what happens when the rear LSD starts taking up the slack under power with a open centre diff that has (iirc) a 60:40(ish) rear biased split ratio

Either that, or he has very grippy rear tyres and "Road champs" on the front

marmski

I notice the difference in my MY05 STi...

More Power to Rear + Empty Roundabout = Ultimate Drifting fun

Set to auto and push the car and you will feel the yaw sensors switch the diff around when the inherent understeer of the Impreza starts to come in.

TonyBurns

iTrader: (3)

Yes RE070's with solid sidewalls, 65/35 split I believe pushing towards a 50/50 split on lock.
You may have only tried this on the road, ive done it on an airfield, the nose is pushed out with the settings all the way back, plus ive 2 LSD's, front and rear.
The nose pushes out with the power to the rear = understeer.
If you want to see whats left of the front tyres due to the understeer I can arrange pictures if you wish?

Tony

Shark Man

You sure your not understeering from excessive steering lock/ over-zealours steering input?

Even RWD cars will do that


Less lock...more foot


Yes you have a front LSD, but it's more sloppy than the rear one...otherwise it wouldn't be able to turn, regardless of your DCCD setting

TonyBurns

iTrader: (3)

Definately not excessive steering, coming out of corner and add power maybe its just my car has more power than other scoobs? but yours is a classic, mine is a new age, my setup is different to yours so maybe yours was designed to oversteer though god knows why (its not a good design to make anything oversteer) but getting oversteer on a new age with a-dccd is pretty hard going, even understeer is hard going with the a-dccd on.

Tony

pslewis

DCCD??

That will be for the .......

D ozy
C ocks who
C an't
D rive



It sits alongside the CockLink, Water Spray and Change Gear NOW Idiot!!! Beep ..... ie, fooookin useless, only halfwits and chavs need apply!!

Pete

ex-webby

Having mine fully open stops the front end from washing away and turn-in much better. Mine IS a MY03, not a classic.

That does exactly what it is supposed to do.... Tony - I suggest you get your diff settings checked!

TonyBurns

iTrader: (3)

Pete, does your car have ABS?

Tony

pslewis

A bsolutely
B loody
S ensible??????

Yes, it does!

I consider ABS,AirBags and SeatBelts essential safety items ...... I have never, ever, heard anyone say, "I wouldn't have crashed if I had DCCD!!"

If you need DCCD to stop from crashing then you are driving like a *****!! IMHO

Pete

TonyBurns

iTrader: (3)

I dont have any problems with the diff settings Shaun
On the road with the A-DCCD on the car wont understeer, though you do get that instant of oversteer going into a corner then the nose pulls out to keep you on line for the rest of the corner, not nerve racking or anything
But I did drive the car on an airfield (concrete) so it could be that the low grip surface could have had something to do with it?
I know Litchfields do something with the A-DCCD settings on some of the cars they get in? though im not sure what?

Tony

TonyBurns

iTrader: (3)

DCCD isnt a safety item pete, its there to increase the cars stability so its a driver aid, just like power steering if you wish
ABS also what I would call a safety item, you still get people crashing with it due to them taking it for granted.
Go back to the good old days of the mk1 escort pete, no anything on one of those

Tony

Shark Man

Not been fiddling with your front ARB? :

pslewis

True ..... I guess, like you, I was able to drive Cortina Mark 2's in the wet - able to steer a Capri round a corner and wind a Granada 3 Litre through country lanes ........

That means that we can actually drive, and I mean REALLY drive, the kiddies these days need all this wizardry just to stop from planting the car into the landscape!!

Its a pathetic state of affairs ... I believe that not one driver under the age of 30 could drive a car from the 1960s or 1970s!!!

That why I can humiliate an Impreza thats had £1000's spent on it and throwing out 500BHP - because I can actually drive by the seat of my pants not by some CockLink induced dream!!

Pete

Mr Bat

Not tonight ducky

GC8

You're mistaken Mr Bat; we already have more than enough trolling fuckwits here.