my buddy has a 97 type r motor with a 95 gsr tranny... it drives & shifts fine except when he goes high rpms & tried to shift it wont go into gear just grinjds in every gear 1,2,3,4,5 any ideas why?

normal driving its perfect but high rpms no dice

 

any ideas guys?

 

anyone have any ideas? i just wanna know if this is clutch related or tranny related...