Which ACD setting best on GAS Mileage?
Evolved Member
Joined: Nov 2003
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From: Bangkok
Originally Posted by omniphil
I wonder if it would be possible to have the center differential unlock completely. Probably not with the diff they use. But I would think it would be cool to have the rear wheels unlock completely via dash switch, if not needed, IE commuting. This would result in better gas mileage as well... It would also improve accelearation in say 3rd gear and up, where traction isnt as much of a factor...
Here's an interesting paper about the design of the ACD:
Development of Center-Differential Control System for High-Performance Four-Wheel-Drive Vehicles
It doesn't go into detail about what the settings actually do, but obviously it's comparable to what the Subaru DCCD does and Tarmac is more open and Snow is more locked.
Development of Center-Differential Control System for High-Performance Four-Wheel-Drive Vehicles
It doesn't go into detail about what the settings actually do, but obviously it's comparable to what the Subaru DCCD does and Tarmac is more open and Snow is more locked.
Originally Posted by x838nwy
Some big 4wd cars have this (I think the Toyota Land Cruiser does) but I think their systems are much different to the evos.
