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03-01-2007, 11:24 AM | #1 |
Scooby Newbie
Member#: 141259
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Issaquah, Wa
Vehicle:2007 STi - Totaled 99 C5 Vette, 475+WHP |
Wow... STi In Snow
All I have to say is wow. Back in January when we had the bad weather I had my Trans Am with proxes 4 on it (also high performace summer tires). AWD is sooooo much better in the snow even with the stock tires, I love my scooby .
Oh and the center diff controll is awsome, rwd when having fun...
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03-01-2007, 11:47 AM | #2 |
Scooby Specialist
Member#: 94085
Join Date: Aug 2005
Chapter/Region:
NWIC
Location: Eugene, OR
Vehicle:2009 BMW 335i Cloud Gray |
You should still change out those stockers with a winter tire.
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03-01-2007, 12:30 PM | #3 |
Scooby Specialist
Member#: 78075
Join Date: Dec 2004
Chapter/Region:
NWIC
Location: North Seattle, WA
Vehicle:98' SF5 STI 93' GF8 (rally) |
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03-01-2007, 12:31 PM | #4 |
Scooby Specialist
Member#: 110567
Join Date: Mar 2006
Chapter/Region:
NWIC
Location: Oregon
Vehicle:2009 JK Sunburst Orange |
yeah stockers are ok in the snow until you really need to stop.
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03-01-2007, 12:52 PM | #5 |
Scooby Newbie
Member#: 141259
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Issaquah, Wa
Vehicle:2007 STi - Totaled 99 C5 Vette, 475+WHP |
I know they aren't great in the snow but I was very impressed by the AWD. I wonder how much more snow we will have this year...
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03-01-2007, 01:31 PM | #6 |
Scooby Specialist
Member#: 89821
Join Date: Jun 2005
Location: A Series Of Toobs
Vehicle:2015 STI LE |
As long as they have good tread, the RE070's aren't the end of the world if you get stuck with a dusting of snow. Just be damn careful and slow down, because they are about as bad of a snow tire as you could put on this car without resorting to drag radials .
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03-01-2007, 01:34 PM | #7 |
Scooby Specialist
Member#: 86243
Join Date: May 2005
Chapter/Region:
NWIC
Location: Spokane, WA
Vehicle:2001 2.5RS brp 07 FXT Sports ugm |
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03-01-2007, 01:35 PM | #8 |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
You cannot make it RWD with the DCCD. That's not what it does.
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03-01-2007, 01:56 PM | #9 |
Scooby Newbie
Member#: 139797
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Federal Way, WA
Vehicle:2006 STI WRB |
I was kindof hoping for snow in the south-end but noooooo. Maybe I'll get to play in the snow next year.
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03-01-2007, 02:47 PM | #10 |
Scooby Newbie
Member#: 141259
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Issaquah, Wa
Vehicle:2007 STi - Totaled 99 C5 Vette, 475+WHP |
Well I guess not full rwd but you know what I am saying, most of the power at the back tires
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03-01-2007, 03:03 PM | #11 |
Scooby Specialist
Member#: 84006
Join Date: Mar 2005
Chapter/Region:
NWIC
Location: Auburn, WA
Vehicle:2005 Impreza WRX STi WRB with Goldies |
I ran my DCCD in full lock mode, it was GREAT! Just wish we had more snow. I guess there is still some hope...
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03-01-2007, 03:21 PM | #12 | |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
Quote:
By moving your DCCD all the way down you are reducing your center differential to only 10% lock and that's it. |
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03-01-2007, 05:09 PM | #13 |
Scooby Guru
Member#: 6971
Join Date: May 2001
Chapter/Region:
NWIC
Location: Edmonds, Washington, USA
Vehicle:2008 WRX STi SSM |
Actually, all the way down should be open, so the DCCD isn't applying any lock. In the 04-05 cars no lock acts like an open center diff with a 35:65 torque split. In the 06+ I believe they have a mechanical center diff with a different torque split along with the DCCD so they do not behave like the earlier centers and act faster than with the DCCD alone.
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03-01-2007, 05:22 PM | #14 |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
I thought you couldn't do fully open just 10***37;, I might be wrong on that though.
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03-01-2007, 05:25 PM | #15 |
Scooby Specialist
Member#: 112343
Join Date: Apr 2006
Location: Oregon 503 Ya Hurd
Vehicle:04 STi SOLD e30 pimpin now |
04-05's do up to 65/35, and everything in between to my knowldge... i.e. 65 front 35 back to 65 back 35 front, or at least thats how i interprited it
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03-01-2007, 05:35 PM | #16 | |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
Quote:
The DCCD does NOT allow you to directly change the torque split and you cannot control where it goes. Torque is transfered only when a tire slips and changes to the DCCD only determine how much is transfered, not where. Sorry for the redundancy, it's just unfortunate that some people think that they can make their STi "mostly" RWD or "mostly" FWD when that's not actually what's going on. I used to think this too and I'm not sure why, but damn whoever gave us all the impression that's how it worked. Last edited by j2los; 03-01-2007 at 05:43 PM. |
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03-01-2007, 05:44 PM | #17 | |
Scooby Specialist
Member#: 89821
Join Date: Jun 2005
Location: A Series Of Toobs
Vehicle:2015 STI LE |
Quote:
DCCD and differentials in general are very much misunderstood. There are a few good threads on NASIOC that describe them, and a whole bunch of crap ones. Research carefully. Dave |
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03-01-2007, 05:55 PM | #18 |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
Yes, thanks Rootus.
It may be of interest to some that you'll find for casual commute type driving (in dry weather) it may make for a more comfortable ride to put your DCCD as far unlocked as possible, especially if your commute involves any sharp or hairpin turns, like mine does. Maybe the 06/07 differential feels a little better, but in my STi whatever lock the AUTO setting has dialed in around certain turns makes the car jerk and shudder a bit. Other than this and using full lock to get unstuck in deep snow, I have not found any other real world usefulness for taking the DCCD off of AUTO. |
03-01-2007, 05:56 PM | #19 |
Scooby Specialist
Member#: 121062
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Seattle, WA
Vehicle:2006 STi [STU Trim] World Rally Blue |
This may be of help to those interested in understanding the DCCD.
http://wallace.as.arizona.edu/~cgrop.../DCCD_FAQ.html |
03-01-2007, 06:34 PM | #20 |
Scooby Specialist
Member#: 112343
Join Date: Apr 2006
Location: Oregon 503 Ya Hurd
Vehicle:04 STi SOLD e30 pimpin now |
All that can be known for certain,
is when i leave it in auto, i do Axle spins, and when i put full rear i do more of a doughnut |
03-01-2007, 07:04 PM | #21 | |
Scooby Newbie
Member#: 121677
Join Date: Jul 2006
Chapter/Region:
NWIC
Location: Renton, WA
Vehicle:04 Impreza WRX STi WRB |
Quote:
In AUTO or any other setting all the way up to full lock, both axles are getting at least some percentage of their torque, allowing you to do more of an axle spin like you say. |
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