maxshuty

Whenever I am accelerating with the 'pedal to the metal' I get a weird ticking noise that usually comes after 75mph. NOT by rpm. It has came as so as 55mph. The noise sounds like seconds 8-10 in the video of this guy racing (this is not me or my car, it's just a similar noise to that.)
http://youtu.be/g-j_ULb76G4
Ill try and make a video of my car doing it tonight, but the last one i made it was extremely hard to hear on the video over the whine of my supercharger. I've checked clearances and can't find anything that would make it, and its weird it is only at high speeds, again not at rpms. Any ideas what it could be? Its almost immediate after I hit 75mph.