Chinese engines are already powering the J10 and J11 at the moment so whether they are equal or better than the Russian engines remains out of the question ( Both Chinese and Russian engines are being used ) ... In this way , the smart Chinese are giving more time for their manufacturers to increase capacity and time to mature ... Do you even know that JFT PT 06 is flying in China with WS13 and second batch avionics ? Also the J 20 is powered by WS 15 ( 180 kn engine ) which i think ( even though i doubt
) may enable you to understand how much progress China has made in engine technology ...
Think and keep thinking
People usually act like this when their crap arguments are debunked and ignorance revealed