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Old 09-28-2009, 02:57 PM   #1
skidder
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Member#: 155343
Join Date: Jul 2007
Chapter/Region: BAIC
Location: Lake Tahoe
Vehicle:
2010 WRX
Spark Silver

Default VDC questions, owner insight and opinions wanted

Coming from BMW's and an older WRX I have always had or installed LSD's... The new WRX's don't have LSD's and uses VDC and I've never been a fan of electronic babysitters (especially ones that aren't fully defeatable). So I'm wondering if a new WRX is the car for me?

**Most of my questions pertain to very snow driving conditions, because I'm a avid skier in an area that sees over 400 inches a year. My morning commute is switchbacks up a unplowed mountain pass.**

Is VDC decent in the snow? Driving impressions with it off and on?
In deep snow are you more likely to leave this system on or turn it off to get some wheels spinning?
Does this car still foster the kind of tail out snow fun my 04 WRX did? (feel free to compare it to any previous car)

I will be doing one HPDE (road course) school a year, I assume the VDC wont bother me because I generally try to keep the back end under control... but feel free to talk about anything you noticed about VDC in this aspect too.

Cheers, thanks in advance.
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Old 09-28-2009, 09:36 PM   #2
MT_Pockets
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Join Date: May 2008
Chapter/Region: MWSOC
Vehicle:
08 obs

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I don't have a WRX, but on the NA impreza I've found the VDC to be very unobtrusive. I've played with it off/on in snowy lots but end up just leaving it on for driving because I don't see it affecting the handling in a negative way. If the roads are bad enough to warrant VDC, I'm usually driving slower to the point where it would only activate in an emergency.

As far as traction control, it works great but I really have to be in the gas hard on a snowy road for it to do anything (no wrx). I can't say for sure if it ever helped during normal driving or not, as in snowy conditions I usually am easy on the skinny pedal.

You can disable it with the push of a button, so no worries there. Since you can disable it (wrx different?) there is no sense in avoiding a WRX simply because of VDC...?
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Old 09-29-2009, 12:22 PM   #3
skidder
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Member#: 155343
Join Date: Jul 2007
Chapter/Region: BAIC
Location: Lake Tahoe
Vehicle:
2010 WRX
Spark Silver

Default

I read somewhere that turning it off just dismantled the TCS, but the skid recovery system was very much still going? Might have been confused with the STI owners who have a slightly different VDC system.

I guess its not a huge deterrent to a newer WRX since I haven't found an overwhelming number of posts bashing the VDC system... and my reasearch proves I can add a LSD to this car from the subaru parts bin or aftermarket (if it turned out to be limiting my fun).

I would still like to get more opinions and driving impressions if anyone has them?
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Old 10-19-2009, 08:38 PM   #4
niquapod
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Member#: 227390
Join Date: Oct 2009
Location: SE, PA
Vehicle:
2008 Impreza 2.5i
Dark Grey Metallic

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We have an 08 Impreza 2.5i and I forget about this little annoyancy until this time of year. There is a steep little rise just out of our driveway, and when I pull out in slippery conditions (wet leaves, ice, snow) with the vdc on, when the wheels start spinning, the car keeps facing straight but slides side to side until I get over the rise. I tested it out in a packed snow parking lot last winter and it did the same on a level surface. When I tried it with the vdc turned off, it took off straight as an arrow each time no matter how hard I pushed it.

There is also a patch of ice that forms at the base of our driveway thanks to a spring that gets pushed to the surface in winter. The vdc doesn't work so hot on that either, but with it turned off and especially in second gear the car walks right off the ice like it's nothing.

Under daily conditions, I've only seen the vdc active light come on two or three times, and never felt a harsh difference. Turning the vdc off in bad conditions is no big deal either. It actually got to be habit by the time spring came. As one hand turned the key, the other hit the vdc button.

I am curious to if getting the factory tires off will make a difference since I plan on getting new tires this week.
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Old 10-19-2009, 10:47 PM   #5
424wrx
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Location: new york
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2008 vf52wrx12.6@108
11 forester,14 legacy

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i usually turn mine off. i dont like it. its always off in snowy weather. i feel more comfortable that way.
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Old 10-20-2009, 08:11 PM   #6
SubMojo
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I've never had a problem with it, my 08 wrx has seen plenty of snow in the northeast.. I did put a snowpackage wheelset on the car.. Driven through some pretty bad stuff and no worries.
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Old 10-22-2009, 02:28 AM   #7
skidder
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Join Date: Jul 2007
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Location: Lake Tahoe
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2010 WRX
Spark Silver

Default

Thanks for your input guys, I ended up getting a 2010 WRX its an awesome car and I don't think I've got the VDC to kick in on a dry corner yet... maybe once or twice but by the time VDC tries to do something about understeer I've already taken it back a notch to compensate.

I tested VDC in snow and it seems to be pretty much useless... but then I've had only a few inches of slush so far to play around in. And the summer tires haven't been swapped for snows yet. I very much wish I had a limited slip rear diff to go with the VDC system for snowy weather. But I don't think I'll really miss it on dry payment, unless I start going crazy with HPDE's again.
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Old 11-02-2009, 05:21 PM   #8
etothen
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Join Date: Aug 2009
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Location: Portland
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09 Ivory Tower
Ivory...duh

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I have yet to drive my 09 in the snow yet but I have driven it with VDC both on and off on watered down mud, slick as all get out rally cross courses with the summer Dunlop’s on, it is a good low traction test and the VDC actually improved my lap times a couple of seconds when the track was very very slick, as it dried out to the point of no longer being ridiculous I turned the VDC off and got better times that way.
I found the VDC to be very useful for surfaces so slick you would not want to walk across them but when the grip picks up I feel better relying on my own skills. By the way I had some trepidation about the WRX’s open difs but found that if you turn the VDC off the rear of the car will swing out with a little turn in throttle application quite nicely, with the VDC on it is very difficult to bring the rear around in anything but the slickest of conditions (I call this wife mode, we have the WRX because she had had some traction control ‘issues’ with the Murano that led to its early recycling)
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Old 11-13-2009, 01:38 AM   #9
Jay89
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Location: Alberta
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2007 WRX
Urban Grey

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if you like bmws, you will love subarus. ive met so many bmw enthusiasts that love how well my 08 impreza handles in the snow. so dont worry about it lol
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