i know ..near on impossible to diagnois on here...but..
on heavy power..not always..but say at 5000rpm on full boost i get a hidious noise..at first thought it was severe pinking (knock)..but now i dont..(the engine aint blown up yet!!lol!!)
sounds like a cog rubbing on metal.(thought it might be s/c pulley rubbing.but no.)..or extreme knock or w.t.f??
only clue is the tacho jumps around when it happens.(i think)
sometimes it coincides with poer loss,sometimes with power gain!!
i cant find anything wrong..any ideas cos i am stumped..???
on heavy power..not always..but say at 5000rpm on full boost i get a hidious noise..at first thought it was severe pinking (knock)..but now i dont..(the engine aint blown up yet!!lol!!)
sounds like a cog rubbing on metal.(thought it might be s/c pulley rubbing.but no.)..or extreme knock or w.t.f??
only clue is the tacho jumps around when it happens.(i think)
sometimes it coincides with poer loss,sometimes with power gain!!
i cant find anything wrong..any ideas cos i am stumped..???