Weird Growling sound when high rpm shifting - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Blackedout86 · 07-23-2020, 09:28 AM

Can anyone help me whats wrong with my car, it makes this weird growling sound coming from the front right of the car, possibly from the intake when shifting at high rpm. It happens all the time, both when car is cold and warm. I've also noticed power loss. and quiter but more drone exhaust sound, when the car is warm.

im dead certain about these sounds and power loss, not just in my head. My brother feels the same.

Car is 2013 AT Ft86 with
HKS Aluminium Inlet Tube + Drop-in filter
Dastek Unichip Piggyback
Catless full exhaust

"https://www.youtube.com/watch?v=UHcsrUdXnx4"

"https://www.youtube.com/watch?v=KFM14jSY4Rw" <- this one you can clearly listen the RPM dropped before climbing up again after shifting from 3 to 4 WOT and my foot never took off the gas

86TOYO2k17 · 07-25-2020, 10:28 AM

Probably vacuum leak or exhaust leak. Need data log, best tool for troubleshooting.

07-23-2020, 09:28 AM	#1
Blackedout86 Member Join Date: Aug 2018 Drives: 2012 Toyota FT-86 Location: Jakarta Posts: 25 Thanks: 7 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Weird Growling sound when high rpm shifting Can anyone help me whats wrong with my car, it makes this weird growling sound coming from the front right of the car, possibly from the intake when shifting at high rpm. It happens all the time, both when car is cold and warm. I've also noticed power loss. and quiter but more drone exhaust sound, when the car is warm. im dead certain about these sounds and power loss, not just in my head. My brother feels the same. Car is 2013 AT Ft86 with HKS Aluminium Inlet Tube + Drop-in filter Dastek Unichip Piggyback Catless full exhaust "https://www.youtube.com/watch?v=UHcsrUdXnx4" "https://www.youtube.com/watch?v=KFM14jSY4Rw" <- this one you can clearly listen the RPM dropped before climbing up again after shifting from 3 to 4 WOT and my foot never took off the gas

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07-25-2020, 10:28 AM	#2
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,189 Times in 781 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Probably vacuum leak or exhaust leak. Need data log, best tool for troubleshooting.

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