Nissan 370Z Forum - Noise while accelerating

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user123

11-12-2019 03:19 PM

Noise while accelerating

I have a noise issue. Only when i hit the throttle hard the noise comes. Doesn't do it while parked and revving. If i accelerate smoothly there is no noise. Only when i jam the gas and its coming from the engine bay or under the seat area.

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, Gen3 intakes and a CBE.

There appears to be no leaks or any metal heat shields hitting the exhaust. Everything is nice and tight.

Is it just the sound VQs make when they have test pipes and intakes?

BettyZ

11-13-2019 06:52 PM

Quote:

Originally Posted by user123 (Post 3888897)

Yes.

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user123

11-22-2019 02:37 PM

any other thoughts?

vtec to vvel

11-22-2019 02:40 PM

Quote:

Originally Posted by user123 (Post 3890713)

any other thoughts?

No.

user123

11-22-2019 04:03 PM

so helpful

vtec to vvel

11-22-2019 06:13 PM

Quote:

Originally Posted by user123 (Post 3890722)

so helpful

I believe BettyZ has already answered your question, as have I.

SouthArk370Z

11-22-2019 07:56 PM

Subscribed

JARblue

11-22-2019 08:38 PM

:iagree: This thread looks to be heading in the right direction :tup:

VQ hiss :yum:

370zBoyz

12-04-2019 06:31 AM

make sure you don't have a snake in a can within your engine bay.

My old test pipes used to rattle on cold starts so I got rid of them because it sounded awful. The hissing and rasp is normal, however.

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