As a part of my PhD work, I wish to try a technique which is upcoming and frequently in use. I am not sure if it will be successful, though I have a good feeling about it. My supervisor is simply against it because he does not understand it. And unfortunately he does not have sufficient Math background to understand it either. He is not interested in exploring such ideas and rather is interested in getting more publications in his chosen techniques - partly because he has friends in those conference committees and mostly because it seems he does not know anything else.
By the way, my PhD is funded by the university. I am not interested in looking for another supervisor. It's a headache! What should I do? The new method will at least need 1.5 months.