Wow, Limited Slip Differentials, that's a tough one to explain. Basically in a real car, an LSD restricts the diff movement based on which wheels are having traction. It even allows the complete disfunction of the diff in one or both directions, ie front one-way differential. The only thing we can hope for in our hobby that has the same effect is the different diff oils that we use, and of course our own little one-way differentials, like those you see on RC touring cars. A torsen diff is also functioning in a similar way to an LSD, by virtually doing the opposite of a standard diff. A regular diff transfers power to the wheels that are spinning most freely, a torsen (or torque sensing) send the power to the wheels that have traction.

When we put oil in our diffs, we are literally, limiting the slip.