Intake box uncovered.

[hhkb]

YouTube video, timestamped

Screenshot:

I'm curious as to what the J-shaped portion is, beneath the main intake pipe. Anyone?

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[randomFL5guy]

Looks like it opens up into the larger chamber that's closed off by the plastic cover. Seems like it could be a helmholtz resonator to help tune induction sound.

 

[MrB]

Looks like it opens up into the larger chamber that's closed off by the plastic cover. Seems like it could be a helmholtz resonator to help tune induction sound.

I think you might be right.

 

[Zavage]

You can put dry ice in there

 

[Whitboy82]

Considering there are shots looking though the pipe, and nothing is there, I think it’s literally just a decoration.

 

[hhkb]

You can put dry ice in there

Yeah! I mentioned this is another thread and I’m fairly certain we’ll be seeing this at the track.

 

[tuhroo]

i did notice spoon wrapped theirs with heat reflective tape...

 

[FL5ogger]

Considering there are shots looking though the pipe, and nothing is there, I think it’s literally just a decoration.

Do you have a link to the shots?
The only ones I've seen of the cross section are on an angle that hides this J pipe.
You can (just) see in this photo there is an opening in the intake where this meets.

 

[TimeRacer]

You can put dry ice in there

Keep in mind that if it's working as a helmholtz resonator (astonished Honda spent the effort to tune the induction noise - don't recall it was a complaint on the FK8) it actually has an open passage and feeds into the intake charge. So you wouldn't want CO2 being fed into your intake charge but I know it's a joke. Would be 'cool' though to have a convenient way of lowering intake temps by 80+ degrees for a drag run or something though!

 

[hhkb]

Keep in mind that if it's working as a helmholtz resonator (astonished Honda spent the effort to tune the induction noise - don't recall it was a complaint on the FK8) it actually has an open passage and feeds into the intake charge. So you wouldn't want CO2 being fed into your intake charge but I know it's a joke. Would be 'cool' though to have a convenient way of lowering intake temps by 80+ degrees for a drag run or something though!

Product idea: Helmholtz Resonator Delete.

Wait, wouldn’t that just be an intake…?

 

[zeroptzero]

Looks like it opens up into the larger chamber that's closed off by the plastic cover. Seems like it could be a helmholtz resonator to help tune induction sound.

yeah that smaller J shaped runner that comes off the large intake pipe opens up into that chamber, you can see the opening. The black chamber cover is also held in place with some serious sized bolts and it looks like the edge of the black plate may have a gasket in place on its circumference to form some kind of seal. I think the chamber has more of a design purpose than just cosmetic. If the plate was just cosmetic they would not use large bolts that are removable, they could have just used an adhesive or rivets. The large removable bolts mean that the black plate has some kind of purpose that is meant to be opened up if needed.

 

[randomFL5guy]

If it is a helmholtz resonator chamber, the plastic cover enables some cool possibilities. You could swap it out for ones that sit a little higher or lower, and this would change the volume of the chamber and change induction sound.

 

[hhkb]

yeah that smaller J shaped runner that comes off the large intake pipe opens up into that chamber, you can see the opening. The black chamber cover is also held in place with some serious sized bolts and it looks like the edge of the black plate may have a gasket in place on its circumference to form some kind of seal. I think the chamber has more of a design purpose than just cosmetic. If the plate was just cosmetic they would not use large bolts that are removable, they could have just used an adhesive or rivets. The large removable bolts mean that the black plate has some kind of purpose that is meant to be opened up if needed.

What’s in the box???

 

[wili]

I am not sure I can recognize its completely open below the plate, but if it is, looks like really nice place for intake filter and BIG front cold air feed placement for some WRC model or something thru scoop or front grill or whatever

 

[Boostlag]

definitely for the sound. It was what the last gen was sorely lacking.

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