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Air intake box


Subru

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55 minutes ago, loner said:

AFM? Yes you need that.

 

Or do you when a large expansion chamber right before the throttle? Don't know what that is for... all my Subaru NA cars have had that.

Yeah the expansion chamber right before the throttle.

49 minutes ago, GC8E2DD said:

That site not working for me lol

The picture below, its that big black box close to the manifold. Its connected via pipe from air filter and goes to intake manifold.

Image result for 2.0r impreza engine bay

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Its called a Torque box.From what I've read up about them is they are a reservoir for air for torque. When the throttle butterfly opens there is a large amount of air for the engine to use straight away. 

I tried with it swapped for an older style plastic pipe with out the box and it Edenton as good. There's a reason it's there. My advice would be to leave it on. Also leave the plastic box in the front fender if it has one. 

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1 hour ago, SpeedySub said:

Its called a Torque box.From what I've read up about them is they are a reservoir for air for torque. When the throttle butterfly opens there is a large amount of air for the engine to use straight away. 

I tried with it swapped for an older style plastic pipe with out the box and it Edenton as good. There's a reason it's there. My advice would be to leave it on. Also leave the plastic box in the front fender if it has one. 

ok cheers

1 hour ago, ADIKT said:

Why do you want to remove it? It won't benefit your engine at all

I don't want to remove it, I just wanted to know what it was for and if the car needs it.

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6 hours ago, boon said:

You can safely assume that if Mr. Subaru put one in the engine bay it probably serves some purpose or another ;)

 

Not not all purposes are good for enthusiasts.... Cars are made by bean counters.

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