Sorry, I don't know who, it was just someone on here from a thread I saw a few years ago. Their scoop was smaller, though. That's my concern with what you're doing - the scoop is too big. The secret is to have a big low pressure area and a small, high pressure intake. Of course, like everyone else, I just assumed that ramming air in would do the job, (which appears to make sense at first), until I figured this out.

