I did everything mentioned in the manual, esc with latest non Vbar firmware, Spirit GTR setup as per manual, S-bus cable in S-bus2 port of R7008SB, telemetry setup in transmitter but nothing on the screen.
Any suggestions on how to get telemetry data on the screen?

As far as I know: Spirit GTR has a receiver builtin and will not work with the Futaba receiver. You need a Spirit GT. Connect the telemetrie from the Hobbywing ESC directly to the Futaba receiver.

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Have a good time
Thomas

My bad, its a GT.
I changed the telemetry settings to kontronic esc and now it works. It’s in the manual but I selected Hobbywing ESC.
With the Hobbywing telemetry sensor I didn’t get the rpm right. Now, with the Telem uni cable I have all the info I need.