Brief "chirp" sound on acceleration - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

nastynate88 · 04-03-2017, 10:51 AM

Hi all,

I've done a bunch of searching, but haven't been able to find much regarding a slight "chirp" sound that comes from the front of the car when I quickly stab the throttle when rev matching or quickly accelerating after shifting.

My car is a 2014. Engine mods are OFH and OFT Stage 2 tune. 18.5k miles

I can tell you that the noise isn't coming from the clutch, it's not the rear tires chirping, and climate control is off when I've tested it so it's not the AC clutch. It's also not the normal chirping from the fuel pump.

The car is still under warranty, but with all of the quirks this chassis has I'd like to know if this is normal or if this is something that I should make a warranty claim on. I don't have a sound clip now, but I could try to record one tonight.

Thanks.

StraightOuttaCanadaEh · 04-03-2017, 10:58 AM

My flywheel used to chirp in a Mini. It was glazed all to shit

Impureclient · 04-03-2017, 11:04 AM

I recently installed a UEL header and OFT stage 2 tune also and noticed the same chirp. It's only at WOT that I hear it though after the car upshifts(Auto).
Figured it was just a new noise to get used to from the header/tune.
Pretty sure it's normal: http://www.ft86club.com/forums/showthread.php?t=70903

nastynate88 · 04-03-2017, 11:10 AM

Definitely not a woosh. I'd describe it more like a belt is momentarily slipping for a fraction of a second.

PDM 2 · 04-03-2017, 11:30 AM

Sounds similar to

Start @ :40?

Impureclient · 04-03-2017, 11:33 AM

Quote:

Originally Posted by nastynate88

Definitely not a woosh. I'd describe it more like a belt is momentarily slipping for a fraction of a second.

Exactly how mine sounds. A kind of squeak, squeal, chirp, turbo blow off sound.

guybo · 04-03-2017, 11:48 AM

IMHO you're over-analyzing the noise. It's nothing. Cars make noise

humfrz · 04-03-2017, 12:21 PM

Yep, Ill have to agree with guybo ....... this time ......

humfrz

nastynate88 · 04-03-2017, 12:42 PM

http://www.ft86club.com/forums/showthread.php?p=2565234

Seems this person had a similar issue, but no follow up.

nastynate88 · 04-03-2017, 12:50 PM

http://www.ft86club.com/forums/showthread.php?t=62346

Looks like the noise is tip in knock. I don't remember if this was there before the tune or not, but it seems to be what it is

mclovin85 · 04-03-2017, 01:14 PM

Quote:

Originally Posted by nastynate88

Hi all,

I've done a bunch of searching, but haven't been able to find much regarding a slight "chirp" sound that comes from the front of the car when I quickly stab the throttle when rev matching or quickly accelerating after shifting.

My car is a 2014. Engine mods are OFH and OFT Stage 2 tune. 18.5k miles

I can tell you that the noise isn't coming from the clutch, it's not the rear tires chirping, and climate control is off when I've tested it so it's not the AC clutch. It's also not the normal chirping from the fuel pump.

The car is still under warranty, but with all of the quirks this chassis has I'd like to know if this is normal or if this is something that I should make a warranty claim on. I don't have a sound clip now, but I could try to record one tonight.

Thanks.

i sometimes get this noise when i rev match... i hope its not something serious

imnotsureaboutbrz · 04-03-2017, 01:25 PM

Quote:

Originally Posted by nastynate88

...Engine mods are OFH and OFT Stage 2 tune. 18.5k miles...The car is still under warranty...

Good luck to ya, but I had a little chuckle when I read this.

guybo · 04-03-2017, 01:29 PM

Quote:

Originally Posted by humfrz

Yep, Ill have to agree with guybo ....... this time ......

humfrz

You're finally starting to smarten up.

nastynate88 · 04-03-2017, 02:10 PM

Quote:

Originally Posted by imnotsureaboutbrz

Good luck to ya, but I had a little chuckle when I read this.

What funny about it? The car is under 3 years old and less than 36,000 miles. Modifying your car doesn't nullify your warranty.

04-03-2017, 10:51 AM	#1
nastynate88 Member Join Date: Jul 2014 Drives: 2014 BRZ Location: Anytown, USA Posts: 97 Thanks: 8 Thanked 40 Times in 22 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Brief "chirp" sound on acceleration Hi all, I've done a bunch of searching, but haven't been able to find much regarding a slight "chirp" sound that comes from the front of the car when I quickly stab the throttle when rev matching or quickly accelerating after shifting. My car is a 2014. Engine mods are OFH and OFT Stage 2 tune. 18.5k miles I can tell you that the noise isn't coming from the clutch, it's not the rear tires chirping, and climate control is off when I've tested it so it's not the AC clutch. It's also not the normal chirping from the fuel pump. The car is still under warranty, but with all of the quirks this chassis has I'd like to know if this is normal or if this is something that I should make a warranty claim on. I don't have a sound clip now, but I could try to record one tonight. Thanks. Last edited by nastynate88; 04-03-2017 at 12:14 PM.

04-03-2017, 11:30 AM	#5
PDM 2 Pokemon Master Join Date: Sep 2016 Drives: 2014 Scion FR-S Location: Scarborough, Ontario Posts: 204 Thanks: 57 Thanked 76 Times in 45 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Sounds similar to Start @ :40? __________________ '10 MazdaSpeed 3 Velocity Red Mica - SOLD PDM 2 '14 Scion FR-S MT FireStorm Red STAGE 2 + - FIVE AXIS BODY KIT - HKS DROPIN - INVIDIA N1 - GRUPPE-S UEL- ENKEI LUSSO 18X7.5 +42 - ST COILOVERS

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04-03-2017, 10:58 AM	#2
StraightOuttaCanadaEh Wes Join Date: Feb 2017 Drives: Artisan Spirits '17 86 Location: Toronto Posts: 2,794 Thanks: 1,165 Thanked 1,674 Times in 994 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	My flywheel used to chirp in a Mini. It was glazed all to shit

04-03-2017, 11:04 AM	#3
Impureclient Banned Join Date: May 2015 Drives: 2015 FR-S Location: NPR, Florida Posts: 2,404 Thanks: 1,802 Thanked 2,903 Times in 1,282 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	I recently installed a UEL header and OFT stage 2 tune also and noticed the same chirp. It's only at WOT that I hear it though after the car upshifts(Auto). Figured it was just a new noise to get used to from the header/tune. Pretty sure it's normal: http://www.ft86club.com/forums/showthread.php?t=70903

04-03-2017, 11:10 AM	#4
nastynate88 Member Join Date: Jul 2014 Drives: 2014 BRZ Location: Anytown, USA Posts: 97 Thanks: 8 Thanked 40 Times in 22 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Definitely not a woosh. I'd describe it more like a belt is momentarily slipping for a fraction of a second.

04-03-2017, 11:48 AM	#7
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	IMHO you're over-analyzing the noise. It's nothing. Cars make noise

04-03-2017, 12:21 PM	#8
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,866 Thanks: 28,787 Thanked 31,813 Times in 16,424 Posts Mentioned: 708 Post(s) Tagged: 2 Thread(s)	Yep, Ill have to agree with guybo ....... this time ...... humfrz

04-03-2017, 12:42 PM	#9
nastynate88 Member Join Date: Jul 2014 Drives: 2014 BRZ Location: Anytown, USA Posts: 97 Thanks: 8 Thanked 40 Times in 22 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showthread.php?p=2565234 Seems this person had a similar issue, but no follow up.

04-03-2017, 12:50 PM	#10
nastynate88 Member Join Date: Jul 2014 Drives: 2014 BRZ Location: Anytown, USA Posts: 97 Thanks: 8 Thanked 40 Times in 22 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showthread.php?t=62346 Looks like the noise is tip in knock. I don't remember if this was there before the tune or not, but it seems to be what it is

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