With a torsen differential, you don't need to tune it like you do with a convential gear differential. The amount of diff action varied depending on the track conditions. Therefore, there is no need to "tune" a torsen differential.


The ofna torsen diffs are not as nice as those from nuova faor or fironi. I will ge getting my hands on an ofna unit this week-end and will be posting pictures of the internals.

BTW: different torsen differential designs provide a different degree of power transfer. The old nuova faor 4 gear wasn't as good as the 6 gear hyper japan traction.