80 to 200 degrees:
No clue if this person made it up or has an actual data /shrug
This article was talking about 4WD Turbos but still had excellent descriptions of differential setups and diagrams:
"They tend to generate more heat under heavy use than open or other types of Limited Slip Differentials differential which of course means more power losses as some of the kinetic energy is transformed into heat rather than transmitted to the wheels"
is a quote under the sectioned view of the differential with the ring gear.
This thread at corner-carvers, page 2, Msquared near the top, mentions they generate heat:
Im still going to buy a Torsen. Ive read nothing but great stuff about them. I am just gonna buy a cooler kit is all
In my conquest to decide between the T2 and the T2R, however, the corner carver thread has left me undecided still lol
[EDIT] ok did some more digging:
the second to last response:
"I don't know how one could be "better" than the other. Both are gear driver differentials. You will have to define "better" and I'm sure someone here with experience with both can help. When I did the searches here I came to the conclusion the T2R was an autocross differential and the T2 was more of a street/OT differential, with the difference being the torque bias ratio and the speeds at which you exit corners at."
This is the general feeling I got from all the reading. Anyone agree/disagree? Since im just building for a street car, Im now leaning towards the T2
As a word of caution, this thread says Torsens are bad for high RPM launches on slicks in drag conditions due to low surface area of gear teeth: