NMRacings LSD guide
There is alot of confusion surrounding the LSD, how it works and what each value does. Here I will explain my theory.
Initial Torque
Initial Torque is the strength of the preload spring within the LSD. The preload force is almost always present, it ensures that in order for a wheel to spin the traction of the wheel and the preload must be overcome. Preloading holds the lsd closed until the preload force is exceeded at which point the LSD is open
Initial torque is the only linear setting in the LSD. The higher the number the more pressure the preload spring keeps on the LSD, The quicker the preload takes effect.
The downside to running a high Initial Torque Value is understeer, as the wheels are constantly locked together by the preload force.
The upside to increasing the initial torque is less loss of grip due to wheelspin. please note you are not increasing grip, you are preventing grip being lost.
Cars with less tire grip, ie: narrow tires, comfort or sports tires will require a higher initial torque. Cars with racing softs and or wide tires such as race cars will require a lower initial torque.
Acceleration Sensitivity
contrary to popular belief the higher the number does not equate to a "stronger" LSD, it equates to a more resonsive LSD. when a car turns a corner the weight shifts to the outside wheel, reducing the amount of weight/downforce on the inside wheel causing it to spin under acceleration.
Acceleration sensitivity takes effect after the Initial torque has been exceeded.
A lower Acceleration sensitivity value will allow the inside wheel to spin more before the LSD is engaged.
A higher value will prevent the inside wheel from spinning and instead send the power to the outside wheel.
"Diff lock" is impossible, it is a limited slip differential, what is possible is to have an equal amount of power sent to both wheels this is a sweet spot between having the sensitivity low enough to allow a very small amount of inside wheel spin and high enough to ensure the outside wheel does not get overpowered.
Deceleration Sensitivity
Works the same as Acceleration sensitivity but under deceleration. It ensures that both wheels are traveling at or about the same speed.
lift off oversteer, instability under braking and to some extend mid corner wheel spin can all be controlled by increasing or decreasing the Deceleration senitivity.
