Removing Intake Silencer - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Mister_Sir · 09-23-2012, 02:31 AM

Has anyone tried this? My friends at a meet disconnected my intake to see what it sounded like. One mentioned removing the silencer from the intake.

Ravenlokk · 09-23-2012, 02:34 AM

Edit: holy crap i cant read

what silencer are you referring to? and do you have a turbo?

Innova · 09-23-2012, 02:41 AM

I've removed it and plugged up the opening. Unfortunately there was no major sound difference.

Mister_Sir · 09-23-2012, 02:45 AM

I'm not talking about the sound tube. Apparently theres a silencer under the intake box or somewhere around there. Idk A guy was just talking about it.. and no my frs is N/A

Ravenlokk · 09-23-2012, 03:04 AM

Assuming OP is referring to this. And I'm not sure. Got the AIRAID box personally, and love it. Plus the price is great- especially with the $50 rebate!

Calum · 09-23-2012, 05:42 AM

I'm pretty sure the OP is referring to chamber the projects downward ~90 to where the sound tube comes off. Yes people have removed it. No we don't have anything that's 100% concrete about it's effects. Perrin posted gains of 0 hp when they tested it out. Some have reported no issues, others are reporting issues at high load and low rpm. YMMV

Flat Black VW · 09-23-2012, 12:57 PM

I removed that and the sound tube, no difference but a cleaner engine bay really.

BRZ? · 09-23-2012, 01:10 PM

Why is this in the Forced Induction forum???

Tansey86 · 09-23-2012, 01:27 PM

Quote:

Originally Posted by BRZ?

Why is this in the Forced Induction forum???

Because removing the Intake Silencer adds boost! and more boost = more powaaaaa.

Draco-REX · 09-23-2012, 01:41 PM

Removing the intake silencers can cause issues with the MAF reading the incoming air. One job of the silencers is to counteract resonance from the engine that causes the air in the intake pathway to vibrate. These vibrations can cause the MAF to mis-read the air passing through it. Best to leave them on just in case.

ahausheer · 09-23-2012, 02:42 PM

Yeah leave it on. Google a video of Ferraris new v12. That engine has these weird looking tubes sticking out from the intake for each cylinder bank. They function similarly to the box you have removed in that they aid intake harmonics. The volume of the box on our car is very carefully calculated. It may be there to alter the engine note, but it also likely plays a role in helping the intake cram as much air as possible into the engine. Some engines actually achieve a small supercharging effect from a properly tuned intake.

Mister_Sir · 09-24-2012, 11:03 PM

Well I dont see where removing the silencer (a hollow box) would make much more of a difference than changing to a short ram intake as far as air flow goes. I ended up removing it and it actually sounds good. It gives the engine a more growly note when I really get on it. I'm eventually going to get a sri but this is cool for a while.

WolfsFang · 09-24-2012, 11:08 PM

Quote:

Originally Posted by Mister_Sir

Well I dont see where removing the silencer (a hollow box) would make much more of a difference than changing to a short ram intake as far as air flow goes. I ended up removing it and it actually sounds good. It gives the engine a more growly note when I really get on it. I'm eventually going to get a sri but this is cool for a while.

the box is not a silencer, i have no idea who told you this or where they got that info from. For what it really is refer to ahausheer post.

jdzumwalt · 09-24-2012, 11:19 PM

what does this have to do with boost?

09-23-2012, 02:31 AM	#1
Mister_Sir Senior Member Join Date: Aug 2012 Drives: 2013 Scion FRS Location: Florida Posts: 140 Thanks: 16 Thanked 92 Times in 37 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Removing Intake Silencer Has anyone tried this? My friends at a meet disconnected my intake to see what it sounded like. One mentioned removing the silencer from the intake.

09-23-2012, 02:34 AM	#2
Ravenlokk Senior Member Join Date: Aug 2012 Drives: 2013 Raven FR-S Location: Vancouver, Canada Posts: 265 Thanks: 34 Thanked 68 Times in 47 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Edit: holy crap i cant read what silencer are you referring to? and do you have a turbo? Last edited by Ravenlokk; 09-23-2012 at 02:36 AM. Reason: im a dumbass

09-23-2012, 12:57 PM	#7
Flat Black VW Senior Member Join Date: Jun 2012 Drives: 2013 Subaru BRZ Location: NOVA Posts: 894 Thanks: 227 Thanked 343 Times in 202 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	I removed that and the sound tube, no difference but a cleaner engine bay really. __________________ Build Thread: http://www.ft86club.com/forums/showthread.php?t=43355

09-23-2012, 02:42 PM	#11
ahausheer Re-member Join Date: Nov 2011 Drives: Toyota camry Location: S. Cali Posts: 1,001 Thanks: 98 Thanked 292 Times in 152 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Yeah leave it on. Google a video of Ferraris new v12. That engine has these weird looking tubes sticking out from the intake for each cylinder bank. They function similarly to the box you have removed in that they aid intake harmonics. The volume of the box on our car is very carefully calculated. It may be there to alter the engine note, but it also likely plays a role in helping the intake cram as much air as possible into the engine. Some engines actually achieve a small supercharging effect from a properly tuned intake. __________________ Nothing decays like progress, and nothing preserves like neglect.

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09-23-2012, 02:41 AM	#3
Innova Senior Member Join Date: Jun 2012 Drives: 2013 BRZ Limited Location: Louisville, KY Posts: 141 Thanks: 17 Thanked 37 Times in 29 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	I've removed it and plugged up the opening. Unfortunately there was no major sound difference.

09-23-2012, 02:45 AM	#4
Mister_Sir Senior Member Join Date: Aug 2012 Drives: 2013 Scion FRS Location: Florida Posts: 140 Thanks: 16 Thanked 92 Times in 37 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I'm not talking about the sound tube. Apparently theres a silencer under the intake box or somewhere around there. Idk A guy was just talking about it.. and no my frs is N/A

09-23-2012, 03:04 AM	#5
Ravenlokk Senior Member Join Date: Aug 2012 Drives: 2013 Raven FR-S Location: Vancouver, Canada Posts: 265 Thanks: 34 Thanked 68 Times in 47 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Assuming OP is referring to this. And I'm not sure. Got the AIRAID box personally, and love it. Plus the price is great- especially with the $50 rebate!

09-23-2012, 05:42 AM	#6
Calum That Guy Join Date: Dec 2011 Drives: 2013 asphalt FRS MT Location: Halifax, Nova Scotia Posts: 4,865 Thanks: 5,058 Thanked 2,867 Times in 1,499 Posts Mentioned: 82 Post(s) Tagged: 1 Thread(s)	I'm pretty sure the OP is referring to chamber the projects downward ~90 to where the sound tube comes off. Yes people have removed it. No we don't have anything that's 100% concrete about it's effects. Perrin posted gains of 0 hp when they tested it out. Some have reported no issues, others are reporting issues at high load and low rpm. YMMV

09-23-2012, 01:41 PM	#10
Draco-REX Corner Junkie Join Date: Feb 2012 Drives: 13 BRZ, 11 STI, 99 RS Location: Ohio Posts: 2,908 Thanks: 129 Thanked 1,520 Times in 702 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Removing the intake silencers can cause issues with the MAF reading the incoming air. One job of the silencers is to counteract resonance from the engine that causes the air in the intake pathway to vibrate. These vibrations can cause the MAF to mis-read the air passing through it. Best to leave them on just in case.

09-24-2012, 11:03 PM	#12
Mister_Sir Senior Member Join Date: Aug 2012 Drives: 2013 Scion FRS Location: Florida Posts: 140 Thanks: 16 Thanked 92 Times in 37 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Well I dont see where removing the silencer (a hollow box) would make much more of a difference than changing to a short ram intake as far as air flow goes. I ended up removing it and it actually sounds good. It gives the engine a more growly note when I really get on it. I'm eventually going to get a sri but this is cool for a while.

09-24-2012, 11:19 PM	#14
jdzumwalt Motor Sports slut Join Date: Sep 2012 Drives: 13 FRS, 2011 f150eco boost, Location: Fallbrook Posts: 262 Thanks: 8 Thanked 65 Times in 30 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	what does this have to do with boost?

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