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Old 07-21-2003, 06:22 PM   #1
SloPok
Scooby Newbie
 
Member#: 37344
Join Date: May 2003
Location: Jax
Vehicle:
04 WRB STI 04'

Default DCCD question?

When putting the DCCD into lock or the position right under it, it sounds like it's going to break something. I can park the car, back out, or even try to move 3 feet straight forward and it makes a series of real loud clunks and the cars jerks around like I hit a wall, anyone else know about this?
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Old 07-21-2003, 06:34 PM   #2
Cacophony
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Member#: 213
Join Date: Aug 1999
Location: Philly, PA
Vehicle:
2004 Mazda RX-8
Black

Default

Yeah, it's because the diffs are locked . Jump into a 4wd pickup truck sometime, put in 4x4, and then try to park it.

It'll sound and feel horrible. That's why you don't use things like that unless you are in snow or mud or something similar. Really now, what posessed you to lock the diffs and try to drive around in normal conditions anyway??
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Old 07-22-2003, 09:24 AM   #3
SloPok
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Member#: 37344
Join Date: May 2003
Location: Jax
Vehicle:
04 WRB STI 04'

Default

Was trying to change the power more to the rear, even when it wasn't in the lock mode, the position right under it, it still does the same.

So why does the car act like this, but in snow or mud it would be different?
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Old 07-22-2003, 09:35 AM   #4
T-WRX Racer
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Member#: 21530
Join Date: Jul 2002
Location: Birmingham, AL
Vehicle:
2004 STI--evo killer
12.920@103.26mph---stock

Default

When you set the diff to lock. You are locking the diff's. So All four wheels spin at the same rate with the same amount of power. And when you are turning the wheels, the inside wheel has a shorter distance to go (so it should spin less) but with the diff's locked you are forcing it to go the same distance as the outside wheel. Which puts stress on the drivetrain causing it to knock and clank around. When the Diff's are not locked the inside wheel will free spin at a slower rate to compinsate for the shorter distance it has to travel.

The farther forward the DCCD is set will cause the diff's to become more closely to a locked poistion. So instead of being 100% locked, you may be 90-85% locked.
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Old 07-22-2003, 10:09 AM   #5
ANZAC_1915
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Member#: 456
Join Date: Oct 1999
Chapter/Region: NWIC
Location: Redmond, WA, USA
Vehicle:
2008 Forester XT
Steel Gray Metallic

Default

Perhaps you should read the owner's manual....
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