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https://www.youtube.com/watch?v=t09ExAUgtyE
Are AWD systems really this bad? How can Subaru be the only make that has a fully-functioning AWD system while others can't even do the basics?
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>>16238207
Subaru isn't the only one, anything with a center diff will be able to do this test. That's the only point of comparison here. The transmission is delivering power to the driveshaft running out the back and to the front diff at all times but the RDU will selectively engage depending upon some logic.
The problem that they're highlighting here is that VDC is fucking retarded when interacting with these AWD systems. It detects the front wheels are slipping so it starts braking them and cutting throttle to reduce the slip.
As a result, because the AWD system requires that you power the front wheels in order to also power the rear wheels, cutting throttle to stop the front wheels from slipping causes the rear tires to not receive any power.
This may be better in modern VDC systems that aren't just blindly trying to minimize wheelslip. Otherwise you need to turn it off to go anywhere.
What Subaru conveniently neglects to mention is that by putting the engine so far forward and always distributing power to the front wheels that the car is going to be an understeering pig by default.
You can try the same experiment on the Skyline GT-R and find that it will climb a hill even if the rear wheels have no traction.
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https://www.youtube.com/watch?v=z0LzVoLiVCw
This isn't the Skyline GT-R but the modern GT-R has ATTESA with VDC and you can see that in VDC-R mode where it allows for some wheelslip that it will drive just fine in low traction conditions.
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Nothing can beat a quattro.
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>>16238391
this.
80s-90s 4WD systems are the best.
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>>16238391
STis come with 3 mechanical limited-slip-differentials and many have adjustable center diffs. Not even an Evo can out-perform an STi from a stop in snow. I'm sure something like a fully limited-slip Wrangler would be the best though, but that'd 4WD not AWD.
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Not owning an old Subaru ea81 with exploding gears whenever you hit the awd button while driving
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