essexrob_scooby

can someone please tell me i have a 2001 wrx awd and im scaced about pulling the handbrake does it lock all wheels or **** the diffs?allow we did have fun playing in the snow sidewides all wheels spinning the nuts

Claudius

That would depend on the center diff.

essexrob_scooby

arrrhhhhh emmmmmmmm welll dunno what it is thanx for ya help though....will have to find out..i think it locks all wheels up.

ian_sadler

If it's an import with DCCD then pulling on the hand brake disconects the center diff so only the rear wheels lock.

On a UK I think all 4 wheels lock.

HTH

Ian

Razor2001

If you pull hard enough the car will stop ?

chiark

Caution: non techie here...

If you've not got an adjustable centre diff, you do put strain on the diffs as I understand it. Dipping the clutch should help quite a bit, but every ibt of advice I've seen has been "don't do it".

essexrob_scooby

that seem like a great idear i wont do it emmmmmm start saving for me prodrive satge 1 kit i think if i take it in to them will they do the filter cat etc but fit a back box of my choice and still keep it under warrenty?

sempers

The rears lock, the diff will allow it to happen.

HOWEVER it's a REALLY BAD idea 'cos:
1) it's bad for the diff (I believe the wrx (mechanical?) diffs will handle a lot better than the viscous coupling type in the UK cars)

2) There is a good chance it will break the handbrake - IIRC the handbrake is a separate mechanism, with a lightweight caliper that's not up to handbrake turns.

Anyways, who needs a handbrake to get the car spinning
- M.

ustolemyname??stevieturbo

iTrader: (1)

All the centre diffs are viscous, possibly with the exception slightly with the adjustable centre diff cars.
Pulling the handbrake, simply applies the brakes to the rear wheels, same as any car. But due to the mechanical link between the front and rear wheels, with the 4wd system, then it will also try and stop the front wheels also.
Basically if you are trying handbrake turns, all it will do is make the handbrake slightly less effective. I find it very doubtful the handbrake mechanism is strong enough to apply enough force to any diff to cause it damage. Especially considering the abuse that it would receive anyway, during some hard driving.

dowser

My my00 centre survived a drift training day - constant WOT 3rd gear hardbrake action....
However, I put no power through front wheels until handbrake was off.

Richard

essexrob_scooby

sooo ill leave me handbrake down then...4wd love the ice and snow coverd carparks dont they think ill take the carema next time..

Adam M

as stated the dccd will be fine, thats why its there.

all othjer standard centre diffs are viscous.

they aloow the front and rear axles to rotate at completely different speeds.

but the greater the speed differential, the more work the diff has to do, this means the viscous fluid in the diff will get hotter.

This is of course assuming the handbrake is capable of doing this as stated above.

To my knowledge it isnt a caliper as such since all the handbrakes are drum brakes to my knowledge.