How loud should the DI injectors be?
 

I just picked up a certified 2013 BRZ limited today and after I got it home I was sitting in the driveway setting up the radio and other things.. Once I turned off the audio I noticed the ticking from the driver's side footwell was pretty loud. I was expecting the direct injectors to be loud (I used to drive a VW TDI) but this seems a bit more than I was expecting.

Is it simply louder because the BRZ has less sound insulation than less sporty cars? I noticed an occasional "bump" in the idle as well but the RPMS stay fairly consistent.
-Matt

Haha... LOUD like shaking a bucket full of tap hammers. #fuckitbecauseracecar

ok, Just making sure :) If I ever get an OFT maybe I'll adjust the direct injection ratio table to avoid using direct injection at idle. That's the only time you really hear it.
-Matt

Yeah, but that's where it really shines from an emissions standpoint. The DI kicks in at idle to run a sub-stoichiometric mixture. It's quite an amazing feature.

Yeah, at the expense of sounding like a 30 year old air cooled Porsche at idle 😀

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It's like the old Ducati dry clutch. You pay extra for the rattle-bang.

Exactly.