Zexel has some good information on their FSAE page:

http://www.torsen.com/fsae/fsaefaqframes.htm

I've had this page bookmarked for a year or two, and its fairly useful for answering diff questions. Lots of basic FAQs like, "How does a diff work?"

Some of the non-technical folks might find it useful combined with the cutaway.

EDIT: The FSAE Page has an FAQ geared towards the Torsen Type-1 (T1), not the Coupe's T2 diff. But again, its a good page for getting general info. It looks like the T-1 has a different configuration for the spur gears.

EDIT AGAIN: They used to have a section comparing the T2 to the T1 -- had lots of good info. It looks like that page has been rearranged, since I can't find it.

Jonathan

Well, Jon, who talked you into this? Or who's car did you drive that did it?

Congrats Jon! You will be very happy

Most difficult part for me was to keep RPMS low during break in...good luck

See the following pic. I read this as two thirds of maximum road speed.
155 x .67 = 104 MPH. So as long as you do not exceed 104 MPH, it doesn't matter what the engine RPM is.
If anyone reads this differently, I'm interested in your thoughts.

Tommy V said:

Congrats Jon! You will be very happy

Most difficult part for me was to keep RPMS low during break in...good luck

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