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Bnr34 - Airbox Acoustic Piece? What's It's Purpose

djvoodoo

By djvoodoo,
in Engines & Forced Induction

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djvoodoo Experienced

djvoodoo

Posted
Posted

Hi all

So I was cleaning my airflow meters (r34gtr) and on the airbox I noticed what looks to be an acoustic silencer piece which connects to the main box.

Pics attached.

It is easily removed but was curious. Other than deadening the Bov noise coming through the air filter, would this act as a restriction to airflow? Does anyone know it's original purpose on the RB26?

I've removed the piece and went for a drive. No real noticeable difference except for noise. But it is 30 degrees so wasn't going to go nuts

post-74132-0-16807000-1383957542_thumb.jpg

post-74132-0-73190500-1383957577_thumb.jpg

djvoodoo Experienced

djvoodoo

Posted
  • Author
Posted

I doubt it would restrict anything. It's just to get the cooler air from the guard. How much power are you making?

That's the funny thing though... While it does go to the outer gaurd, it's actually blanked off. There is no airflow to the gaurd, unless you cut out the plastic end cap (see pic 2)

The car is stock except for exhaust/ boost restrictor removed. Getting Power FC and tune done in a few weeks.

djvoodoo Experienced

djvoodoo

Posted
  • Author
Posted

I'll prob do that :yes:

But I am still curious as to why it's blanked off. Keep it under the 280HP rule? less airflow, less noise perhaps?

Any case, it's very trivial and really doesn't impact my current power output.

GTRsean Grand Master

GTRsean

Posted
Posted

Pretty much what you said:

Limit hp

Limit noise

Extra intake as a bonus if used.

It just pops out with a small flat blade screwdriver after you take off the sticky foam tape around it.

djvoodoo Experienced

djvoodoo

Posted
  • Author
Posted

Pretty much what you said:

Limit hp

Limit noise

Extra intake as a bonus if used.

It just pops out with a small flat blade screwdriver after you take off the sticky foam tape around it.

Legend!!!

Well now I know. I've popped it open and now i get a nice induction noise and it feels a little punchier :-) free power upgrade lol

post-74132-0-15258700-1383976623_thumb.jpg

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