Hello! Would a question along the lines "how is the stall speed of a torque converter related to its efficiency" be on topic to ask on the site?

I think the above question is more related to the science section of the stackexchange website.

@NarimanAsgharian "Science"? What site do you have in mind?

stackexchange.com/sites#technology

stackexchange.com/sites#science

Science and technology.

@NarimanAsgharian Yes, on what stackedchange site do you think this question should be asked?

I think engineering site is a good platform for the question:

Are you an student performing a research about torque converter efficiency for a project or just out of curiosity?