another What Is This?
02-21-05, 09:57 PM
#1
EFR IWG 8374
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another What Is This?
I pulled out the air box to do the air box mod and install boost controllers and i found this hose not connected to anything... What is it?
02-21-05, 10:03 PM
#4
It's been 5 years since I've seen a stock airbox, but I imagine that's the airpump relief hose. It works similar to a BOV, releasing air from the airpump so it doesn't get overworked.
When using aftermarket open air intakes, that line has a tendancy to have a "MOOO" sound. So, in stock form, it defuses the sound through the airbox.
When using aftermarket open air intakes, that line has a tendancy to have a "MOOO" sound. So, in stock form, it defuses the sound through the airbox.
02-21-05, 10:12 PM
#6
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It's a funny sound. The Pettit intake has a "silencer" that replaces this. It's a clear hose that has a couple of plastic pieces hooked in-line. Almost completely eliminates the sound.
02-21-05, 10:22 PM
#7
RX-7 Bad Ass
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The air from the air control valve's relief comes back into the air box, passes through a muffler built into the airbox, then is vented out that tube. The tube also helps muffle the sound.
It's cool you actually have that whole hose - I've seen a few FD's that were either missing it, or missing half of it.
Dale
It's cool you actually have that whole hose - I've seen a few FD's that were either missing it, or missing half of it.
Dale
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02-21-05, 10:40 PM
#8
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Originally Posted by DaleClark
It's cool you actually have that whole hose - I've seen a few FD's that were either missing it, or missing half of it.
Dale
Dale
.If you're wondering what this diffuser/muffler looks like, just remove the upper half the intake box and youll see an enclosed chamber. Inside the chamber is a mesh-like sponge, then some netted wall, and then another spongy thing. Sounds weird but yeah thats your diffuser!
Jeremy