unusual noise at 2500-2700rpm
it could be me going mad, or because of the rather extreme cams or any of the other various mods but my car seems to make a strange noise, almost a rough whirling between 2500 and 2700 rpm in any gear. it goes away after 2700rpm.
performance is not being affected neither is fuel consumption (its still shocking lol). any suggestions as to what it could be?
ive checked the obvious, loose fittings, oil level, any leaks... everything appears mechanically sound and as i say, the car itself is operating as per usual, it just annoys me, im either driving at really low revs or driving at 3000+ to keep it away!
im confident its not causing any problems, its more of an i dont like it sorta issue!
any help would be appreciated!