Originally Posted by RaceFaceXC
A viscous diff is only useful in conditions where torque transfer can be slow and gradual. On the track it is almost useless, especially autoX
This times eleventy billion.....a VC is only marginally better than a open diff and is best in inclement conditions (ice/rain) where there is potential for large speed differentials due to 100% slip conditions on one side or the other.
It's ok on track. Decent-ish on national level autox courses that are fast and sweeping like mini road courses and useless on local autox courses with lots of fast transitions and minimal steady state.