[325boi]

ive had my car around two months and i dont know how the dccd works? when and were do i use it ( going to the track),how do i know if the power is to the front or the back, were is the best place to use it or should i just leave it on auto? i want to get the most out of my sti, so am i missing out on something?

[tyler_sti]

You're not missin out on squat. Keep it in auto unless you're trying to go tokyo drift on us. I personaly bought the car because it stuck to the road so well.

[UrbanGunz]

well if you want the rear tires to slip, put it all the way to the back. I use that in the rain sometimes to do donuts lol. 05SilverSTi here on the board said he was a slight bit faster at the track putting the dccd second from the back vs auto. I think putting the car in "LOCK" is the best for driving aggressively in the snow but other than that, just keep it in auto.

[MeoW71]

Typically keep it in auto. Works best for a majority of things.

Want to do donuts easily and have it behave more like a RWD car, manual and full open (all the way back). Don't do this in low traction conditions, you'll be all over the place. I know I did it for the fun of it once.

Loose surfaces like dirt and stuff. Manual and full lock (all the way forward) typically work pretty well.

[donmei]

In the snow, putting it in full lock helps the car to understeer. While this is not what you want for driving fast or having fun, it is the safest way for a car to behave in normal driving.

If you don' tknow what understeer is, botom line is with it in lock, the car doesn't "fishtail" at all.

Don

[[z0ne]]

Donmei: I don't know about you, but, driving my car in the snow, I definitely do not want it to understeer. I had to use some innovative maneuvers to transfer weight to the rear so I could avoid smashing into a guard rail last time it snowed.

Quick question: When the DCCD is in Auto, is it 50/50 torque distribution? I know that the "farter" you slide the DCCD controller back, the more torque gets allocated to the rear wheels.

[Majin]

Don is correct (as usual) - if you want to get where you want to go in the ice and snow and want the car to behave like a 4WD car, and do what you expect it to, then "LOCK" is the way to go.

everyone in here can learn from Don - i know i did. lots too!

[[z0ne]]

I'm not doubting the Don here; I wouldn't want to go against the family. I just might get my legs broken :P I was just curious as to why you'd want your car to understeer and slide into sh!t. If my car oversteered and the tail whipped around, I could feather the throttle and control it around a corner. If it understeered, I would just pump the brakes and try to accelerate out of the slide.

[Majin]

sorry [zOne], didn't mean to imply you were doubting Don, just wanted to reassure the OP that "LOCK" would make the car more predictable in snow/ice versus another setting...

Bruce Chapman, for example, likes driving the car in snow/ice with the setting just above open (2nd to last green) for the same reason you stated.

[RichXKU]

Don't forget, no matter what manual setting you are using, the diff defaults to full open as soon as you apply the brakes, and returns to your manual setting when you let off. The ABS/EBD would not be able to work properly if the center diff was under any kind of lock when the brakes are applied.
(This is also why the DCCD is disabled when ABS is disabled)

[Zach STI]

I was just thinking the other day - would putting the DCCD all the way to the rear help with gas mileage at all? Figure'd it would since it is not distributing power to all 4 wheels? Maybe I'm wrong.

[elirentz]

Originally Posted by Zach STI

I was just thinking the other day - would putting the DCCD all the way to the rear help with gas mileage at all? Figure'd it would since it is not distributing power to all 4 wheels? Maybe I'm wrong.

It does help gas mileage but it there's always power to all four wheels. Read the dccd faq in the drivetrain forums for more info on what exactly goes on.

[Parker]

on our trips to the mountains, I usually put the DCCD somewhere in the middle since I want to force most of the torque to all 4 wheels with a little more to the rear. other than that, I leave it in auto. even with the dial toward the rear, you'll still get some clicking when you turn the front wheels.

[MadRussian]

Originally Posted by Zach STI

I was just thinking the other day - would putting the DCCD all the way to the rear help with gas mileage at all? Figure'd it would since it is not distributing power to all 4 wheels? Maybe I'm wrong.

I don't think you can put 100% to any wheels, so in some way, you will always be in awd

Unless you race your car, leaving it in Auto is best

[fry_ed]

Originally Posted by MadRussian

I don't think you can put 100% to any wheels, so in some way, you will always be in awd

Unless you race your car, leaving it in Auto is best

you can in LOCK