TBH I think all Turkish fans are very vocal. It is the fact that the grounds over there are full at 10am in the morning, awaiting the 2pm K.O. that amazes me. And when the amigo enters the ground with his crew half an hour before K.O. that is when all the fun & games begin. The amigo is more famous than the players, he's the one who gets the crowd going.
http://www.youtube.com/watch?v=GD6fdr-Jhso&feature=related
Turn the sound up on this one, it always gets my hairs on my back to stand up. I have witnessed the Besiktas Carsi in action on more than one occasion and believe me, it takes some beating.
bir, iki, ooch, Besiktas!!!!