Well, first off, I know its not the best thing to rev your engine in nuetral, but regardless....

when I rev my engine up, around 5-6k RPMs, I hear this metallic scrapping sound :dunno:

its not so bad on the way up, but comming back down the Tach, its real obvious. Any clue what it is.

and yeah, its the D16y7 (I beleive? '96 lx w/ vtec)