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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 09-19-2015, 08:25 PM   #1
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Engine questions?

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There's also something beneath this that isn't shown in this photo that has me stumped! Anyone have a photo or illustration that shows what's what in the brz engine?


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Old 09-19-2015, 08:30 PM   #2
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It's part of the air intake, ie more volume for the front side of the air box. I think it helps equalize the air available, as the engine rpm's vary, and cause pulses in the air being sucked into the intake.
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Old 09-19-2015, 09:41 PM   #3
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Yep, and also adds to reduce intake noise.
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Old 09-20-2015, 08:43 PM   #4
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There's also something beneath this that isn't shown in this photo that has me stumped! Anyone have a photo or illustration that shows what's what in the brz engine?


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That's purely a resonator that changes the sound of the intake. As for what's below, the only thing I can think of is the header, which is encased in metal heat shielding. Is that what you're asking about?
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Old 09-20-2015, 08:49 PM   #5
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There is the ball sack hanging off the inlet tube
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Old 09-20-2015, 08:54 PM   #6
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There is the ball sack hanging off the inlet tube

Hahaha. 😆 I was going to say that except I'd use the word bollock instead :-) what is it?


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Old 09-20-2015, 08:58 PM   #7
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Hahaha. 😆 I was going to say that except I'd use the word bollock instead :-) what is it?


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A resonator of some sort is my guess
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Old 09-21-2015, 06:36 PM   #8
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Apparently it's just an acoustic box for the sound that goes into the cabin. Wonder what the bollock is though?


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Old 09-22-2015, 07:45 PM   #9
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Apparently it's just an acoustic box for the sound that goes into the cabin. Wonder what the bollock is though?


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The main part in question has nothing to due with the sound generator
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Old 09-22-2015, 07:46 PM   #10
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Argh does anyone know what these things are for sure?


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Old 09-24-2015, 12:44 PM   #11
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Google Magic:
"BRZ Intake Diagram"

http://blog.perrinperformance.com/wp...21-550x366.jpg
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Old 09-24-2015, 02:16 PM   #12
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Question number 2,

CAI and Short ram doesn't have that. Is it better or worse with that part that @LWAA mentioned?
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Old 09-24-2015, 05:08 PM   #13
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Thanks. I hate to admit it but googlemonster does have its uses. But it does help if you know what to search for. I tried for a while but didn't use the right words I guess!


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Old 09-24-2015, 05:14 PM   #14
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Thanks. I hate to admit it but googlemonster does have its uses. But it does help if you know what to search for. I tried for a while but didn't use the right words I guess!


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It happens, we've all been in that boat haha.
I've been completely lost searching for things, and tried every imaginable word combination, but still gotten nowhere.
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