Rattle/ticking sound above 4000 rpm

jameZ_10

Ok everybody I got the oil changed with Nissan ester. The sound at a hard pull is still there. I wish I could explain the sound better. Anyways. Today I decided to make pulls form 3k to 4k as I got close to 4k the sound showed up as usual. I maintained 4500 rpm and the sound leaves. Pull from 4500 to 5000 and the sound comes back. I maintain 5000 the sound leAves. Same when pulling to 6000. Noise while making it to 6000 but leaves as soon I match the throttle to maintain 6000. Could it be injectors? Almost sounds like when a spark plug is tested when you can see the spark jump. Just a random fast sparatic sound.

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stillen G3 * Invidia TP and CBE * uprev tune* 308 WHP

user123

Are you still having the noises?

I have the same issue. Only when i hit the throttle hard the noise comes. Doesnt do it while parked and revving. Like you mentioned, if i accelerate smoothly there is no noise. Only when i jam the gas. It sounds like a combination of hissing/air leaking/rasp/metal in a can. It kind of sounds like a clogged cat but i have test pipes and a CBE.