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it's good way to get something you don't want in your engine in there.. leave any filtering/blockades on there.. not worth the risk.. if you want a loud car, get the fabspeed bypass for $400..
Yes!
That, or pay $6 for a GUARDS RED resonator plug & $28 for a silicon hose.
New guy here. Reviving an old thread, as this is the only information I could find anywhere about this foam. Mine is also degraded to the point that it just crushes down and falls apart. You can see in the photos below, that this foam does not cover any holes (theorized to keep bugs out). It sits at the bottom of the lower half of the air box and not having a weep hole there makes no sense to me. I’d love to replace it just for the sake of having it refreshed.
Has anyone here, since this thread died, been able to figure out what it’s really for and if there is a replacement?
New guy here. Reviving an old thread, as this is the only information I could find anywhere about this foam. Mine is also degraded to the point that it just crushes down and falls apart. You can see in the photos below, that this foam does not cover any holes (theorized to keep bugs out). It sits at the bottom of the lower half of the air box and not having a weep hole there makes no sense to me. I’d love to replace it just for the sake of having it refreshed.
Has anyone here, since this thread died, been able to figure out what it’s really for and if there is a replacement?
I am guessing it absorbs any moisture that enters the box from the side intake. My box has a few very small holes under to allow drainage? I am replacing mine with sponge washcloths since Porsche parts can’t find it listed anywhere. In fact they said I had to order a new box to see if it was included 🧐
The perforations and foam are just for "acoustics", to get a certain sound from the intake system noise ... a tuning device...
The air box does need enough holes for water drainage in case of a torrential down-pour......you certainly don't want to ingest water into the engine, a hydro-lock would occur ..
I have seen some engines hydro-lock due to water ingestion from a poorly designed air intake system....The Ranger comes to mind, if you try to forge a flooded street with about 18 inches of water, the engine will gulp water and hyrdo-lock due to the location of the intake air ducts...
Foam was degraded to dust in mine so I removed it and I covered most of the holes. There are holes left to drain water if needed, but normally not driven in rain. Also, I collected several air boxes from junked 996s and they all have different hole configurations.
Yep, all the different hole configurations make a slightly different intake sound...
On the 986 Boxsters there are 5 different intake pipes from throttle body to air box in 5 different degrees of Helmholz resonators. One has 2 , one has 1, one has a smaller one, and one has none...The one with none is the loudest and was used on the 2004 Spyder Aniversary Edition..
10-26-2017, 04:40 PM
