Well when I rev my engine, take off, or let off the gas, theres a winding noise that sounds JUST like a turbo. Ive listened to it with the hood up and its coming from the alt.. Its either the alt fan or either that belt one. Should i be concerned with it making this noise??

Ive had atleast 10 ppl think i had a turbo, either riding with me or beside me at stop lights. Its pretty cool having ppl think i have one but i dont wanna race some1 i dont know (especially a stang or something) and they beat me and go and say the beat a GTA with a turbo and they just had a blah blah blah.