Vacuumish noise past 3.5k rpm

cruzmisl · 07-09-2010, 01:14 PM

I've been hearing this vacuumish noise when going past 3.5k/4k RPM. It becomes a bit more audible as I get higher in revs past that point. Like something spooling up. It's very obvious when the windows are closed. I didn't notice it before when I got the car.

I'm pretty sure it's coming from the engine bay, and it sounds close up to the dash area. It only seems to happen when I'm driving--revving the engine in neutral doesn't appear to replicate it.

Am I just nuts?

daleks · 07-09-2010, 01:37 PM

Quote:

Originally Posted by cruzmisl

I've been hearing this vacuumish noise when going past 3.5k/4k RPM. It becomes a bit more audible as I get higher in revs past that point. Like something spooling up. It's very obvious when the windows are closed. I didn't notice it before when I got the car.

I'm pretty sure it's coming from the engine bay, and it sounds close up to the dash area. It only seems to happen when I'm driving--revving the engine in neutral doesn't appear to replicate it.

Am I just nuts?

It's probably just your air intakes. At higher revs you're moving a lot of air, thus causing the noise.

Joseph B · 07-09-2010, 02:22 PM

Quote:

Originally Posted by cruzmisl

I've been hearing this vacuumish noise when going past 3.5k/4k RPM. It becomes a bit more audible as I get higher in revs past that point. Like something spooling up. It's very obvious when the windows are closed. I didn't notice it before when I got the car.

I'm pretty sure it's coming from the engine bay, and it sounds close up to the dash area. It only seems to happen when I'm driving--revving the engine in neutral doesn't appear to replicate it.

Am I just nuts?

Are you referring to gear whine when in lower gears? If not, did you just install something or change your setup?

fullmonty · 07-09-2010, 02:29 PM

Quote:

Originally Posted by daleks

It's probably just your air intakes. At higher revs you're moving a lot of air, thus causing the noise.

dorothykinder · 07-15-2010, 05:07 AM

Yes truly it is because of the air flow when you are riding very fast. BTW you dint you checked driving without windows. There it self you may have replace it.

cruzmisl · 07-15-2010, 04:10 PM

The sound isn't present in an AT model that I just drove.

Hmmph.

07-09-2010, 01:14 PM	#1 (permalink)
cruzmisl Base Member Join Date: Feb 2010 Location: Hillsboro, OR Posts: 122 Drives: 08 G37S 6MT Rep Power: 15	Vacuumish noise past 3.5k rpm I've been hearing this vacuumish noise when going past 3.5k/4k RPM. It becomes a bit more audible as I get higher in revs past that point. Like something spooling up. It's very obvious when the windows are closed. I didn't notice it before when I got the car. I'm pretty sure it's coming from the engine bay, and it sounds close up to the dash area. It only seems to happen when I'm driving--revving the engine in neutral doesn't appear to replicate it. Am I just nuts?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Got my Z this past Saturday	gleonard	New 370Z Owner	8	07-22-2009 11:28 PM
Homemade exhaust....if you can get past the wing, that is	2theextreme	The Lounge (Off Topic)	12	07-22-2009 06:50 AM
Z-Love: Past & Future Z-Owner	mumbalee	Introduction	4	06-23-2009 07:02 AM
Any 240z owners here, past or present?	Brazilbro	Other Vehicles	6	06-19-2009 11:23 PM

07-15-2010, 05:07 AM	#5 (permalink)
dorothykinder Base Member Join Date: Jul 2010 Location: Texas Posts: 17 Drives: Yamaha Rep Power: 14	Yes truly it is because of the air flow when you are riding very fast. BTW you dint you checked driving without windows. There it self you may have replace it.

07-15-2010, 04:10 PM	#6 (permalink)
cruzmisl Base Member Join Date: Feb 2010 Location: Hillsboro, OR Posts: 122 Drives: 08 G37S 6MT Rep Power: 15	The sound isn't present in an AT model that I just drove. Hmmph.