sorry for the noob question. does the center diff disengage when you pull the hand brake while in motion? like on a hair pin turn in a rally stage.

do you have to switch ASC off?

any info would be helpful.
thanks

 

Switch off ASC is a must to pull the handbrake and make a turn or slide.

 

so switching off the ASC, does that disengage the center diff when the rear locks up?
how does it work? dont want to break anything trying to have some fun :P

 

If your car is in neutral when you do it, the spinning front wheels will just cause the transmission side of the diff to spin freely, and the rear wheels will lock up. If you have the clutch engaged, then the torque will either double the speed of the front tires, cause the engine to double in speed, or something in between. I doubt it's good for the car. But I don't see any issues if you have the clutch depressed.

 

if you use e-brake, car becomes front wheel drive. That is what my master tech mitsu mechanic told me. you can click the e-brake once and it disengages the rear wheel drive.

So he said. So dont grill me.

 

thanks for all the info.

will it do any damage to the center diff if i dont turn off the ASC?

 

It might, just like doing anything else...

 

guys this is incorrect (jack the car up and try it if you want).

Our "handbrake" is really just a "try not to fall down the hill brake." It doesn't disengage the diff when it's pulled it just pulls a shoe onto a drum inside the rear brake rotor hats.

You're gonna **** your car up if you try this stuff and you don't know what you're doing.

 

This issue has come up in a different thread and people who search (thanks!) might come across this thread. Most of the above is nonsense.

When you pull the hand-brake, the ACD is disabled. That's it. Thus, the limited-slip component of the center diff will not "fight" the fact that the rear wheels are not turning and (if you didn't press the clutch) the front wheels will double in speed or the engine will halve in speed or something in between those two. You don't want this, which is why you press the clutch when you yank the hand-brake.

The ASC has absolutely nothing to do with any of this. You can do hand-brake turns in any ASC mode, although I would hope that you have the ASC in at least plain-off if you're doing hand-brake turns.

The idea that pulling the hand-brake causes the center diff to cease to exist (i.e., the car becomes FWD) is just silly, but the odds are that the Mitsu tech was just simplifying matters to the point of falsehood either because he didn't know much more or he thought that the listener couldn't handle the detailed truth.

As to whether this will do any damage ... to the extent that hand-brake turns are an element of aggressive driving, yes, it isn't the best thing that you can do to the car. Is it, by itself, going to break something? ... it hasn't (yet) on my car and I've warn the shoes to the rivets. (Note: the shoes are not designed for hand-brake turns, so be ready to replace them yearly. Also be ready for most websites to have the wrong shoes in the system, such that buying shoes via, say Andy's Parts Warehouse, will be very frustrating, as they will send you the wrong shoes. Get them directly from Centric, instead. Ask me how I know.)

The only open question (as it were) is whether one or both clutches on an MR are opened when you pull the hand-brake. I assume so, but have never been allowed to do a hand-brake turn in someone else's MR to be sure.