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Old 10-08-2019, 12:35 PM   #1
ricochet
Driving Sports TV Staff
 
Member#: 15542
Join Date: Feb 2002
Location: Kirkland, WA
Vehicle:
2004 WRX

Default Subaru AWD Explained: AWD, VDC, DCCD


If you buy a 2020 Outback, WRX STI, a Crosstrek with a manual transmission or a WRX with a CVT, you get one of four very different all-wheel drive systems. Even though Subaru advertises it simply as "Subaru Symmetrical All Wheel Drive". In this video we look at the modern history of the systems, and how every version of the system works in current Subaru models.

Key information in this video was sourced from internal Subaru tech docs and conversations with Subaru engineers.
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Old 10-08-2019, 05:20 PM   #2
Lug_Nuts_23
Scooby Newbie
 
Member#: 506272
Join Date: Sep 2019
Location: Kansas City area
Vehicle:
2002 WRX Sedan
Silver

Default

Nice information!

However, I think it misses the early manual-transmission WRX system which has a center viscous limited-slip coupling/differential (50:50 split) and rear viscous limited-slip differential. (I found that out after a lot of reading online.)

I loved the "in action" clips btw.
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Old 10-08-2019, 05:32 PM   #3
ricochet
Driving Sports TV Staff
 
Member#: 15542
Join Date: Feb 2002
Location: Kirkland, WA
Vehicle:
2004 WRX

Default

Quote:
Originally Posted by Lug_Nuts_23 View Post
Nice information!

However, I think it misses the early manual-transmission WRX system which has a center viscous limited-slip coupling/differential (50:50 split) and rear viscous limited-slip differential. (I found that out after a lot of reading online.)

I loved the "in action" clips btw.
Thanks for watching! I mentioned that the earlier WRX models in the USA had rear LSD units in the Active AWD section (as with my 04). I should have been more explicit that also extended to the Continuous AWD models as well.

Cheers,

R
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Old 10-25-2019, 06:47 PM   #4
BigWrecKs
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Member#: 93830
Join Date: Aug 2005
Chapter/Region: South East
Location: Flori:derp:
Vehicle:
'06 Silverado
'19 STI

Default

Nice video. Are there guidelines for manual DCCD on dry surfaces? I vaguely recall seeing something about manual/full lock would be harmful to the center diff for street driving. And the recommendation was, if you were in manual mode, keep it all the way down.
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Old 10-26-2019, 12:21 PM   #5
old school
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Member#: 22647
Join Date: Aug 2002
Chapter/Region: NWIC
Location: Emerald City
Vehicle:
2018 Crosstrek
Blue.

Default Hey Ryan

Did you ever get the email I sent you explaining what I'd discovered about XMODE and hill descent?
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Old 11-13-2019, 02:32 PM   #6
beardo073
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Member#: 508130
Join Date: Nov 2019
Default Learner.

Learn something new every day! How neat. Love the technology that goes into these machines.
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Old 11-13-2019, 02:56 PM   #7
willthetech
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Member#: 498029
Join Date: Feb 2019
Location: Cleveland Ohio
Vehicle:
2019 WRX Premium
Pearl Blue

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ok so maybe i missed it, but which one is in the regular 2015-2020 wrxs?
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