The last roll of Tech Pan I bought came with an instruction sheet which included developing suggestions for a range of contrast indices from 0.50 (low contrast, pictorial) to 2.50 (highest contrast,) using Kodak developers Dektol, D-19, HC-110, D-76, Microdol, XTOL and Technidol (in descending order of contrast - I note that TMax developer is not listed.)(posted 8530 days ago)For the highest contrast index (2.50) they suggest exposing at EI 200 and developing in Dektol for 3 minutes at 68 F. Dektol is a paper developer, usually diluted 1:2 (stock solution made from powder.) I remember using Dektol stock solution succcessfully, either straight or 1:1, when developing Kodak's High Contrast Copy film for high contrast applications. (Apparently Dektol is now available as a liquid concentrate to be diluted 1:9 for use - I'd guess that using this concentrate without any dilution might be a bit aggressive.
I wouldn't be surprised if that chart is available somewhere on Kodak's web site, although I confess I haven't checked to be sure. The instruction sheet also contains a reference to Kodak Publication P-255 for more info on Tech Pan - perhaps that's available on line, too.
Good luck with the process.