In reply to confuZion3 :
Two part, yes I can get on the power way harder and earlier coming out of corners. Also the way the Torsen works when the inside tire loses traction it sends the power to the outside tire, this helps to rotate the car into the corner and significantly reduce under-steer.
A locker or LSD connects both wheels together now the inside tire is rotating at the same speed as the outside tire. This increases under-steer and causes torque lock like trying to turn a truck with the center diff locked, it just fights you.
Most noticeable for me was the manner in which I opened my steering while coming out of a corner, it was more natural, lighter, and in general I was steering less with the wheel and more with the throttle.
This is on a RWD moderator powered car. 2008 Mustang 330 WHP 3400ish lbs.
I couldn't help but notice that the Laguna Seca, Miata, several performance models came with them prior to Ediffs.
Torsen® differentials use advanced helical gearing, produced on state-of-the-art gear cutting equipment. Patented Invex™, Equvex™ and Equvex II gearing give Torsen® the ability to deliver torque as needed to whichever tires can best use it, improving traction, stability, and vehicle dynamics.Torsen® differentials are torque-biasing, meaning they distribute torque between the tires – biasing more torque toward wherever it’s best used – without requiring a loss of traction to operate. They work by managing the friction which results when torque is applied to the helical gearing. This friction is what gives it the ability to prevent wheel spin and bias torque. By tuning and managing that friction level across the performance range, the differential has the ability to support imbalances in traction, allowing the tire with better traction to receive more torque while preventing unwanted wheel spin. The differential’s ability to bias more torque to the tire with better traction is characterized as the Torque Bias Ratio or “TBR” for short. This essentially represents the ratio of high traction to low traction that the differential can allow while remaining locked. The higher the TBR setting, the more aggressive the traction performance is.The friction itself comes from our unique helical gearing. When input torque is applied to a helical gear, it creates a series of thrust forces that push that gearing into the differential casing. When these forces push against the wall of the casing, that contact creates friction. As the torque load increases, so do the forces, and so friction increases in proportion to the amount of torque applied. That gives Torsen® the ability to support a lot of traction imbalance when under heavy throttle conditions, like exiting a corner. Yet, it still can differentiate freely and smoothly at low torque levels, so the car is docile and easy to drive and maneuver.When combined with brake-based traction control systems and other electronic chassis controls, Torsen® becomes even more effective, complementing these systems by reducing the amount of intervention needed and enhancing system response. This works in dry, wet, snowy, muddy, icy, even sandy conditions, giving your vehicle the best conceivable combination of traction performance.
