is this normal, been playing around with the dccd and when i set it lock if its fine driving around but if i try to turn onto my drive with steering wheel on full lock up a flat kerb the car trys to stop moving? same when backing off too, is it purely doing what a diff lock should I'm new to all of this stuff

Thanks Dan

 

Yes, diffs are needed as when a car turns, theres a DIFFerence between how far a left and right, or front and back wheels have to move.

the word differential basically means that the total rotation of its two output shafts add up to double the rotation of the input shaft, but neither one has to be the same.

So, when you lock the centre diff and try and turn sharply, 1 of your wheels will inevitably have to scrub across the tarmac, this is the stopping that your feeling.

 

Thank you! ah thats good news then i thought my dccd was on it was out, I'm a happy bunny now :P

 

Look in the tech archive for information on the dccd

Tony

PS, you will virtually never need to use the Lock on the dccd unless in really bad conditions like snow.

 

i dont think thats dccd related it happens in the non dccd cars too.
nothing to worry about though

 

^ That shouldnt happen with the viscous centre'd cars as the contrarotation of turning isnt enough to cause the viscous diffs to start binding! And the standard rear LSD's arent strong enough to cause this either.

Possible with an LSD front, but theyre few and far between.

If the cars had alot of miles on different sized tyres front/back, the centre diffs can pop and become fully open or locked.

 

bang on

i doubt you should have full dccd lock on when driving on dry tarmac

i would have thought you would get transmission wind-up

 

cheers for the info guys! i have no idea what any of the lock setting meant so i was just playing about, from now on ill leave it out of lock unless its snowy

 

My 03 sti can skip the front tyres on full lock when reversing, its done that since new in 2003. No DCCD on mine.
The 03's have a suretrack front LSD and rear torsen LSD.


Dipster.

 

I have no idea what either of them things mean :P ahaha

 

So an LSD is a limited slip differential, these are cross axis diffs if you look at what Dipster is saying (front and rear LSD) or if you like, wheel to wheel.
There are several types of LSD's used in scoobs, and not all STI's have front LSD's.

Tony

 

Ah okay Thanks how do i know if i have a front lsd?

 

you have

 

That was easy Thank you