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Old 04-26-2013, 07:53 PM   #1
mixadj
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Adding cold air tube to stock air box

I have a 2008 Focus SES with the 2.0 Duratec. I have been admiring the fswerks CAI and exhaust systems but sadly I am a broke college student. As cheap alternatives I have removed my resonator and am considering a lunchbox delete. I thought of something the other day while cleaning out my air filter. The stock intake has a little scoop that funnels air from the crack between the body and hood into the air box. I noticed that the scoop is detachable from the air box assembly and when removed there is a 3 inch hole in the side of the box. Now I don't want to remove this thing and suck in hot engine air so I am considering plugging the hole with a 3 in O.D. piece of PVC and making an intake tube that runs down to the area behind the splash-guard. I would probably block off the original resonator hole and make this tube the primary intake. Now here is the question--Since I am keeping the stock air box, would this make a difference? Also would the increased length of the intake tube make this a moot point even though it would allow it to suck in colder air? I am planning on going to the local hardware store tomorrow to pick up an elbow joint and start measuring. I wanted to start this thread to see if anybody had any thoughts on this harebrained scheme.

Thanks for reading my small essay up there,

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Old 04-26-2013, 08:04 PM   #2
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Its getting cold air with that snorkel already.
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Old 04-27-2013, 04:24 PM   #3
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Yes, but the diameter of the snorkel goes down to about an inch or an inch and a half.
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Old 04-27-2013, 10:25 PM   #4
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I promise you won't notice any difference by incorporating a larger tube into the mix. Either throw a high flowing drop in filter in the box or save up for a proper cold air intake.
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