Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2007-06-12, 01:13 PM

I agree, with you, but by definition, a twisting motion that is not applied is not torque...

So, the gotcha becomes are we talking about torque at the wheels which is after the clutches on the output shafts of the whole "DCCD" differential unit, or on the output shafts of the internal planetary diff gears within the case which is a subset of the whole "DCCD"?

Without clearly identifying which, you can argue this forever with many parties being correct...

Just because an engine is capable of producing 300 ft/lbs of torque doesn't mean it is. If the maximum torque that can be absorbed by the tires and assorted drive line losses including DCCD clutches is 200ft/lbs, that is all the maximum measurable torque that the overall system will attain...

Can you point me to any diagrams of the actual internals of the DCCD? It would be interesting to see if the clutches are strictly on the output shafts or internal to the planetary diff itself.

2007-06-12, 01:13 PM	#15
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	I agree, with you, but by definition, a twisting motion that is not applied is not torque... So, the gotcha becomes are we talking about torque at the wheels which is after the clutches on the output shafts of the whole "DCCD" differential unit, or on the output shafts of the internal planetary diff gears within the case which is a subset of the whole "DCCD"? Without clearly identifying which, you can argue this forever with many parties being correct... Just because an engine is capable of producing 300 ft/lbs of torque doesn't mean it is. If the maximum torque that can be absorbed by the tires and assorted drive line losses including DCCD clutches is 200ft/lbs, that is all the maximum measurable torque that the overall system will attain... Can you point me to any diagrams of the actual internals of the DCCD? It would be interesting to see if the clutches are strictly on the output shafts or internal to the planetary diff itself. __________________ I am a Commodore PET --- Now get off my lawn you kids...