Popping noises on my S14 after installing coilovers

[Alteus]

So I just installed some Megan street coilovers, and something in the front is making all sorts of noise. First I noticed a bad popping noise when I turned the wheel. It sounds something metal is hitting on something else. It does it when I turn the wheel from dead center in either direction, and it only does it in one spot, then when you hit that spot again on the way back in makes it again. Thought maybe I over- or under-tightened something, but I checked and it's fine. Then I noticed another noise...this one sounds like something is loose and is rattling, and only happens when I go over bumps. But everything is tight. And the last, which is also the worst by far...whenever I turn the wheel to the right, at around 40MPH or higher, it makes a really loud repetitive popping noise, almost like a machine gun. It's so bad that I thought I had a flat tire at first. My dad suggested maybe the wheel bearing is going out. I sure hope not. See, this what I was afraid was going to happen. Any suggestions?