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Old 05-15-2008, 05:56 PM   #1
xCatch22x
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Default 12v DC direct to DCCD?

What is the effect of this? Do I just get the diff at 100% lock or will it burn out?

If I dont have a controller then is there a way to limit the current to the coil to stop it burning out?

Cheers,

Wayne.
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Old 05-15-2008, 06:10 PM   #2
DS1
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Burns out, one of my customers tried that.
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Old 05-15-2008, 06:38 PM   #3
MasterKwan
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Interesting. I know the controllers send a duty cycle to the DCCD clutch. Basically 12 volts all the time's 100% duty cycle. Wonder what the max duty cycle the clutches see in real life?

I run my car at the track with an open center diff (no controller). Locking the center diff and driving like that 100% of the time will probably destroy your drivetrain, just like it would in a part time 4WD truck.
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Old 05-15-2008, 09:28 PM   #4
Spiider
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I run my duty cycle in all my products to exactly the maximum of what Subaru does....it's no where near 100%.
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Old 05-18-2008, 11:43 AM   #5
a6n6d6y
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place a resistor in the circuit so as not to burnout the solenoid
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Old 05-18-2008, 04:44 PM   #6
MasterKwan
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Lets say you want 4 volts on the clutch. That's 14-4 volts or 10 volts dropped across the resister. Lets say the clutch needs 3 amps to actually activate (it's probably higher).

I * E = W

10 volts * 3 amps = 30 watts of power.

R = E/I

R = 10/3
R = 3 ohms.

So, you'd want probably a 3 ohm 30-60 watt resistor to be safe.
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