Yes it is BUT with cone it should not be 260 more. Now that i know that it runs great without cone i know the tubine itself runs very nice. It runs very smooth and responds very fast to throttle accellerations. It doesn't heat up at all, almost no cooling was required after the test. In deaccelleration a have read an egt of 355. Temp changes are very quick and temp stabilizes very quickly.

So the tubine isn't a big problem, the cone is. I accept a temperature increase of 100 with cone but not 250. I will modify the cone so i run at 160K with an egt of 640. I will measure the trust when it is mounted in the plane (to be build very soon).

BTW, 800 is not near overheating, it IS overheating The NGV has melted at one point. Some meterial is completely missing......