There is much talk on the SM board about allowing the '99 torsen differential to be grafted on to the
'90 thru 92 miatas.

As I am having my third mazdaspeed rear end put on my '91 miata (in three years) it seems like the torsen swap would be a great option to help keep the costs down and the car reliable.

Would the rule change end up applying to ITA? If the rule change happens and it does not apply to ITA then
I guess SM cars would not be able to run in ITA with that differential.

Would it make sense to lobby with the scca to include ITA in the rule change?

Thanks for any information about this.

Regards,

Neal Norton