Faint whine sound under throttle?

Davey · 09-11-2011, 02:49 PM

Gear lash or whatever, no big deal.

NickTurnon · 08-14-2013, 02:02 PM

Quote:

Originally Posted by Nissanboy

It's normal, it comes from the differential ring and pinion

Is this accurate? I haven't really opened the car up lately and when I did today, the car sounded like it was supercharged.

A slight whine came around 3k-7k thru my first 4 gears.

Only happened once or twice though.

bbowers825 · 08-14-2013, 02:11 PM

Saw the thread, wanted to make a supercharger joke. Am I to late?

Quote:

Originally Posted by TongMan

It's probably the supercharger.

YOU SOM' BITCH! :P

NickTurnon · 08-14-2013, 02:26 PM

Thank you guys for your insightful answers

luigi90210 · 08-14-2013, 04:00 PM

Its normal, my Z has it and just about every other Z I have been in have it.

jburke26 · 08-14-2013, 04:42 PM

Yup, I hear it all the time. I would suspect the reason some people can not hear it is their ears are not as sensitive to that frequency for some reason or another or their cars are loud as ****! Can't wait for my FI exhaust so i can junk this stupid OEM exhaust.

Infidel · 08-14-2013, 04:53 PM

Power steering unit? You can hear those fords two blocks away.

jburke26 · 08-14-2013, 04:56 PM

Quote:

Originally Posted by Infidel

Power steering unit? You can hear those fords two blocks away.

LOL! You got that right.

UNKNOWN_370 · 08-14-2013, 05:25 PM

It's the intake. Low humidity days where the air is feeding perfectly into the manifold. It gives off a low FI like sound. It happens more often when you modify the intake.

luigi90210 · 08-14-2013, 07:54 PM

Quote:

Originally Posted by jburke26

Yup, I hear it all the time. I would suspect the reason some people can not hear it is their ears are not as sensitive to that frequency for some reason or another or their cars are loud as ****! Can't wait for my FI exhaust so i can junk this stupid OEM exhaust.

this is exactly what happened when i did the washer mod, now i dont even hear the drivetrain whine because the exhaust is so loud XD

Quote:

Originally Posted by UNKNOWN_370

It's the intake. Low humidity days where the air is feeding perfectly into the manifold. It gives off a low FI like sound. It happens more often when you modify the intake.

i doubt it is the stock intake, the whine OP is probably talking about sounds like faint belt whine(kind of like a supercharger) that is coming from the rear drive axle and diff

intake noise is more like this(go to 29m41s)

08-14-2013, 02:26 PM	#19 (permalink)
NickTurnon A True Z Fanatic Join Date: Jul 2011 Location: Scottsdale Age: 33 Posts: 1,636 Drives: 09 BS 7AT 370z Rep Power: 18	Thank you guys for your insightful answers __________________ 2009 Brilliant Silver BASE 7AT \| TEIN S-Tech Springs \| K&N Drop Ins & z1 Maf Tubes \| AAM S-Line Short Tails \| 5% Tint \| 20MM Spacers \| Sport Spoiler NickTurnon's 370z Build

08-14-2013, 04:00 PM	#20 (permalink)
luigi90210 A True Z Fanatic Join Date: Apr 2012 Location: San Diego CA Posts: 1,103 Drives: Classified Rep Power: 15	Its normal, my Z has it and just about every other Z I have been in have it. UNKNOWN_370 and NickTurnon like this. __________________ SOLD 370z New Car:classified DD:2011 Mini Cooper S stock

08-14-2013, 04:53 PM	#22 (permalink)
Infidel Enthusiast Member Join Date: Mar 2013 Location: Central Florida Posts: 457 Drives: 2013 GM 6MT Rep Power: 14	Power steering unit? You can hear those fords two blocks away. jburke26 likes this.

08-14-2013, 05:25 PM	#24 (permalink)
UNKNOWN_370 A True Z Fanatic Join Date: Jul 2009 Location: ny'r livn in tx Posts: 8,687 Drives: well over 130m.p.h. Rep Power: 14858	It's the intake. Low humidity days where the air is feeding perfectly into the manifold. It gives off a low FI like sound. It happens more often when you modify the intake. __________________ Favorite Quote. "I'm not gonna kill you... I'm just gonna Bash Your Face In" Jack Nicholson-"The Shining". 1980

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09-11-2011, 02:49 PM	#16 (permalink)
Davey A True Z Fanatic Join Date: Apr 2011 Location: Indiana Posts: 3,766 Drives: '15 NISMO 6MT Rep Power: 117171	Gear lash or whatever, no big deal.

08-14-2013, 04:42 PM	#21 (permalink)
jburke26 Enthusiast Member Join Date: Mar 2012 Location: Cullman, Alabama Posts: 252 Drives: Sold Z Rep Power: 13	Yup, I hear it all the time. I would suspect the reason some people can not hear it is their ears are not as sensitive to that frequency for some reason or another or their cars are loud as ****! Can't wait for my FI exhaust so i can junk this stupid OEM exhaust.