Qwerty1274 - the first demo is NOT in Auto mode, it is in manual mode with the centre diff fully unlocked. This gives more torque to the rear wheels as explained in the video. In Auto mode there is much less wheel spin than this. This demo is to show the difference between the two extreme settings in manual mode. In Auto mode it will adjust the torque distribution to the axle with the most grip.
Some people understand it and some people think they understand it. 41/59 is 06+ STi. 35/65 is 03-05 STi. The 41f/59r torque split is a result of its natural design. ie. The number of cogs on the transmission output gear and the number of cogs receiving the torque on the front and rear axles. These cogs teeth numbers result in its native 41f/59r torque split. When the DCCD is unlocked the torque will go anywhere with the least resistance 100/0 or 0/100 whichever end is on water or ice. Locking the diff, the DCCD will try its best to output an even 50/50 because it's trying to restrict and speed difference between the front or rear axle. It's still possible to send torque 100/0 or 0/100. This is because say for example the vehicle is chained in place, not letting it move at all. If the front wheels are on ice and the rear wheels are on dry tarmac, what will happen is 30, 40, 50nm of torque (whatever is required to spin the tires on ice) will go to the front and 0 is going to the rear because it's not moving. Vice versa for the rear axle. All the dccd is doing is not letting the front or rear go at different speeds, to the best of its ability. It's "NOT" torque vectoring, trying to send power either front or rear.
How can it go to 100/0 if the distribution is 41/59 while the clutch pack is unlocked (as open as it can get), and 50/50 when the clutch pack is locked? It cannot lock or unlock any more than that.
@@joshjlmgproductions3313When the diff is open, it's always 41/59, that's how open diff works. When the diff is locked then you may consider static torque split (50/50) or dynamic torque split (range from ~100/0 to ~0/100).
You should note that in auto the distribution of drive is not on or off, the system smoothly increases the drive as needed, when needed. In lock it is locked 50/50 and that’s why it drives off the rollers without wheel spin.
Even this guy is from subaru (maybe) He doesn't really know what he's talking about. C-diff does not have the abillity to change torq split. You CAN NOT do full lock driving on pavement dry or wet because the front and rear wheel turns at different speed due to the 41/59. you will f up the DCCD clutch in no time.
I'm crying inside when he said locked is 50/50. The torque split is NOT variable, it's fixed by gearing. What you CAN change is the enforcement of that 41/59 split. Subaru has always done a poor job of explaining torque split on DCCD cars because the physics are not apparent to the layman.
@@brother_maleiksame what the hell does it do. Seems like it just locks the differential and sends power so it doesn't slip. Not necessarily ever torture split
@@brother_maleik it's nothing different then a LSD on rear wheel drive sportscar. but it get relocated between front and back. Regular LSD keeps both wheel 50/50, DCCD keept the front and back 41/59. It's very simple don't over think.
@@Align700nitro locking the diff will distribute 50/50 because it's trying its best to prevent either front or rear axles rotating at different speeds. 41/59 is its native output governed by its gearing outputting to front & rear axles.
These videos are great, the dealer doesn't tell you any of this when you buy it. Great info, keep these types of videos coming!
Did someone magically remove the spoiler??
It's there at 0:05, and by 1:45 it's gone!
This comment is sold but so underrated what the hell!
Dude WTF... you can see it on the car at 1:27 when it rolls off the rollers but then it's completely off when the camera pans out.
Qwerty1274 - the first demo is NOT in Auto mode, it is in manual mode with the centre diff fully unlocked. This gives more torque to the rear wheels as explained in the video. In Auto mode there is much less wheel spin than this. This demo is to show the difference between the two extreme settings in manual mode. In Auto mode it will adjust the torque distribution to the axle with the most grip.
That is one English looking group of people right there.
Some people understand it and some people think they understand it.
41/59 is 06+ STi. 35/65 is 03-05 STi.
The 41f/59r torque split is a result of its natural design.
ie. The number of cogs on the transmission output gear and the number of cogs receiving the torque on the front and rear axles. These cogs teeth numbers result in its native 41f/59r torque split.
When the DCCD is unlocked the torque will go anywhere with the least resistance 100/0 or 0/100 whichever end is on water or ice.
Locking the diff, the DCCD will try its best to output an even 50/50 because it's trying to restrict and speed difference between the front or rear axle. It's still possible to send torque 100/0 or 0/100.
This is because say for example the vehicle is chained in place, not letting it move at all.
If the front wheels are on ice and the rear wheels are on dry tarmac, what will happen is 30, 40, 50nm of torque (whatever is required to spin the tires on ice) will go to the front and 0 is going to the rear because it's not moving. Vice versa for the rear axle.
All the dccd is doing is not letting the front or rear go at different speeds, to the best of its ability.
It's "NOT" torque vectoring, trying to send power either front or rear.
How can it go to 100/0 if the distribution is 41/59 while the clutch pack is unlocked (as open as it can get), and 50/50 when the clutch pack is locked? It cannot lock or unlock any more than that.
@@joshjlmgproductions3313When the diff is open, it's always 41/59, that's how open diff works. When the diff is locked then you may consider static torque split (50/50) or dynamic torque split (range from ~100/0 to ~0/100).
You should note that in auto the distribution of drive is not on or off, the system smoothly increases the drive as needed, when needed. In lock it is locked 50/50 and that’s why it drives off the rollers without wheel spin.
I would like to hear on Manual fully open opinion, how it is like to dodge corners?
a c.diff button, might need flagyl/vanco added to the trans
fucking weak LMFAOOOOOO & better have a handwash station w/ contact precautions
Magic spoiler!!!
Bad weather? what that mean? Wet road? In wrx sti you can't use full differential lock on surface different than snow, ice, sand road...
what model sti is that? i reckon they look cool without the standard massive wing
Very nice. Love to see more on this.
so what about the plus and minus toggle switch? what does that do?
Even this guy is from subaru (maybe) He doesn't really know what he's talking about. C-diff does not have the abillity to change torq split. You CAN NOT do full lock driving on pavement dry or wet because the front and rear wheel turns at different speed due to the 41/59. you will f up the DCCD clutch in no time.
As long as you are driving in a straight line, you can drive with full lock. Torque split of the diff in open state doesn't matter then.
Video is a little wrong, its not sending more to the rear its just opened the diff and spins those wheels because they are on rollers.
It's sending more in comparison to being locked. But yeah, it can't send more than 59% of the torque.
TheSELFYYY - Yes this was filmed at one of our driving events at Castle Combe last year.
that was a HUGE amount of time for the auto mode to react to the rear wheelspin.... whats up with that? It took like 4 seconds!
Is this only available on the sti?
yes
11 years ago...
So essentially the adjustment is diff preload?
Sort of, yeah.
Chuckdude61 - this is a standard 2011 UK Spec STi
Must be an Impreza Sedan then, looks like the new legacy though tbh.
I'm crying inside when he said locked is 50/50. The torque split is NOT variable, it's fixed by gearing. What you CAN change is the enforcement of that 41/59 split. Subaru has always done a poor job of explaining torque split on DCCD cars because the physics are not apparent to the layman.
Finally someone who knows it
I've been researching for a while and still don't get it. I get physics it's just so much misinformation idk what to believe
@@brother_maleiksame what the hell does it do. Seems like it just locks the differential and sends power so it doesn't slip. Not necessarily ever torture split
@@brother_maleik it's nothing different then a LSD on rear wheel drive sportscar. but it get relocated between front and back. Regular LSD keeps both wheel 50/50, DCCD keept the front and back 41/59. It's very simple don't over think.
@@Align700nitro locking the diff will distribute 50/50 because it's trying its best to prevent either front or rear axles rotating at different speeds.
41/59 is its native output governed by its gearing outputting to front & rear axles.
this is the Impreza wrx sti :D
this is an impreza wrx sti! not a legacy -___-"
legacy
How bored are they, If looks could say just do some bloody doughnuts mate...