Noises After 5500rpm

[QIKEXT]

hey guys,

had this problem for a while and im a worried after 5500rpm under load my R33 s1 sounds like it valve bouncing (ting ting ting) but its not misfiring or pinging i think is the hamonic balancer as its got a bit or wear in it or the bottom end but if its the bottom end it should do it all the time its on 9psi, fmic, pfc, 3/5 exhuast

anyone know what it could be ?

cheers

[mad082]

could be a gasket gone.

[QIKEXT]

ummmm could be but would a gasket make a noise like this and which one could it be ?

[mad082]

one of the exhaust manifold gaskets (either head to manifold or manifold to turbo). they well make that noise as they are often a metal gasket.

[QIKEXT]

ok thanks ill try that out