Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Startup: Loud metallic (rasp?) sound from middle/under of car, not from exhaust

johnmk · 05-26-2016, 01:58 PM

Here's a walk-around audio-video of the car during a cold startup. I should add that the noise isn't particularly well represented in this, it seems much louder and more obnoxious with human ears. My little camcorder can't do it justice. Also, the noise is present at other times too, at certain throttle/RPM positions I guess. It's not simply a cold start phenomenon but that is one easy way to make sure it happens.

[ame="https://www.youtube.com/watch?v=dBqBxJQest0"]Metallic Startup Sound - YouTube[/ame]

It's really unlike any sound I would expect out of my car given the reputation of the Perrin 2.5" resonated exhaust, and on top of that -- my turbocharger, which itself is a pretty good muffler.

05-26-2016, 01:58 PM	#6
johnmk Fidei Defensor Join Date: Mar 2016 Drives: 2015 Subaru BRZ Limited - Black Location: Sequim Posts: 34 Thanks: 1 Thanked 3 Times in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Here's a walk-around audio-video of the car during a cold startup. I should add that the noise isn't particularly well represented in this, it seems much louder and more obnoxious with human ears. My little camcorder can't do it justice. Also, the noise is present at other times too, at certain throttle/RPM positions I guess. It's not simply a cold start phenomenon but that is one easy way to make sure it happens. [ame="https://www.youtube.com/watch?v=dBqBxJQest0"]Metallic Startup Sound - YouTube[/ame] It's really unlike any sound I would expect out of my car given the reputation of the Perrin 2.5" resonated exhaust, and on top of that -- my turbocharger, which itself is a pretty good muffler. Last edited by johnmk; 05-26-2016 at 07:40 PM.