I've never measured the thrust. I have observed temperatures.
They are as follows:
Idle = 29,000rpms = 406 degrees celsius
Full Throttle = 105,000 rpms = 306 degrees celcius
I have it installed in a Mig29 with a bifurcated pipe and I would estimate approximately 16 - 17 lbs of thrust. That's a very ruff estimate. As I mentioned in an earlier post, I'm not getting the full rpms according to specs.
Steve