RE: Unexpected engine performance.
Not sure what the thrust is, I'll bolt the engine in the test rig and check it, but I would not be expecting more than 15lbs at this conservative rpm setting.
The turbine wheel is 65mm, the exhaust is modified AMT (demountable) but all the critical dimensions are the same. I have modified the diffuser system, not sure if that is producing more case pressure.
Another unusual trait the engine exhibits, similar to the TJT 3000, is the lack of noise, it really is very quiet in the air, just the exhaust efflux roar on higher throttle settings.
Rob.