I doubt that the TFX engine will hit 155.7 kN (it'd be in excess of requirements for a fighter of a TFX's size if nothing else)
The TF-X is the same size as the F-22 so it wouldn't surprise me if it ends up with 35000lbf thrust engines. These engines from the 90's (F119, EJ200, M88) have a TWR of around 9, so a 1750kg engine would produce around 35000lbs of thrust.
The initial images suggest a 3LP and 6HP compressor stages like the F119, so Turkey will probable try to emulate the F119 in size, weight and performance. But with the stated supercruise speed of Mach 1.4 it will probably have a larger bypass ratio than the F119.
Turkey has mastered everything about modern turbofan production since 2017 and has started to develop single crystal turbine blades since 2015 with production ongoing of turbine blades capable of handling up to 1400 degrees C. For a TWR of 9-10, 1500 degrees C is
. Something which
is continuously working on:
"This is indeed an important achievement for our country. There was an issue which has been always said about the domestic and national production: 'Yes, you have a helicopter, but is the engine of this domestic?' Yes, TEI can produce it in a domestic way. Yes, there is an engine, but can the components inside the engine be produced domestic and national? Yes, we can now produce turbine blades as TÜBİTAK MAM, which is the most difficult component of our country's first domestic and national turboshaft engine. This technology is very critical and a very limited number of countries around the world have this technology. It's a very complex and difficult design, it's not easy to do. We've made it happen. Of course, this is not an ending process. Certainly, there's more to it. TÜBİTAK Materials Institute and TEI will now be able to produce nickel-based superalloys for these and similar applications starting from raw materials with the Aviation Engine Materials Development - Cevher Project which was signed yesterday."