Noise while accelerating

user123 · 11-12-2019, 04:19 PM

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, 07:52 PM

Quote:

Originally Posted by user123

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?

Yes.

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user123 · 11-22-2019, 03:37 PM

any other thoughts?

vtec to vvel · 11-22-2019, 03:40 PM

Quote:

Originally Posted by user123

any other thoughts?

No.

user123 · 11-22-2019, 05:03 PM

so helpful

vtec to vvel · 11-22-2019, 07:13 PM

Quote:

Originally Posted by user123

so helpful

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

SouthArk370Z · 11-22-2019, 08:56 PM

Subscribed

JARblue · 11-22-2019, 09:38 PM

This thread looks to be heading in the right direction

VQ hiss

370zBoyz · 12-04-2019, 07:31 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.

11-12-2019, 04:19 PM	#1 (permalink)
user123 Banned Join Date: Jul 2009 Location: USA Posts: 24 Drives: 09 Nissan 370Z SR M6 Rep Power: 0	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?

11-22-2019, 08:56 PM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	Subscribed JARblue and BettyZ like this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

11-22-2019, 09:38 PM	#8 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	This thread looks to be heading in the right direction VQ hiss BettyZ likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

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11-22-2019, 03:37 PM	#3 (permalink)
user123 Banned Join Date: Jul 2009 Location: USA Posts: 24 Drives: 09 Nissan 370Z SR M6 Rep Power: 0	any other thoughts?

11-22-2019, 05:03 PM	#5 (permalink)
user123 Banned Join Date: Jul 2009 Location: USA Posts: 24 Drives: 09 Nissan 370Z SR M6 Rep Power: 0	so helpful

12-04-2019, 07:31 AM	#9 (permalink)
370zBoyz Base Member Join Date: Oct 2013 Location: Driver seat Posts: 207 Drives: Nismo Rep Power: 7214	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.