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ROUSH Performance
Disappointing email from Roush
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<blockquote data-quote="WarSurfer" data-source="post: 189785" data-attributes="member: 1138"><p>In real off road racing they use two, sometimes three filters. For carbed setups with the large round filter they use a dry filter with an oil soaked 'sponge' filter over the outside. Sometimes that setup will be in a split seam filter box where the hood seals the box when closed, save for the rear facing inlet. </p><p></p><p>For fuel injected tube type intakes, not only do folks use something like a K&N with a pre filter sock, they will also build a filter box where one or more sides are also filter elements and the tube intake draws air from inside the filter box, pre filter sock and K&N type - at least that's what most folks were doing in the desert when I lived out there - years ago - and the filter box is in the cab or the bed next to the cab. </p><p></p><p>The military runs 'filter less' filters in some applications where centrifugal force is used to sling particles out of the intake stream. The intakes look like conch shells and have strategically placed scoops and seams - works pretty good in situations where constantly changing a filter element isn't an option.</p><p></p><p>We have a decent amount of room under the hood, I'd be willing to bet you could make your own filter box for less than 100 bucks, including the cost of two flat filter elements.</p></blockquote><p></p>
[QUOTE="WarSurfer, post: 189785, member: 1138"] In real off road racing they use two, sometimes three filters. For carbed setups with the large round filter they use a dry filter with an oil soaked 'sponge' filter over the outside. Sometimes that setup will be in a split seam filter box where the hood seals the box when closed, save for the rear facing inlet. For fuel injected tube type intakes, not only do folks use something like a K&N with a pre filter sock, they will also build a filter box where one or more sides are also filter elements and the tube intake draws air from inside the filter box, pre filter sock and K&N type - at least that's what most folks were doing in the desert when I lived out there - years ago - and the filter box is in the cab or the bed next to the cab. The military runs 'filter less' filters in some applications where centrifugal force is used to sling particles out of the intake stream. The intakes look like conch shells and have strategically placed scoops and seams - works pretty good in situations where constantly changing a filter element isn't an option. We have a decent amount of room under the hood, I'd be willing to bet you could make your own filter box for less than 100 bucks, including the cost of two flat filter elements. [/QUOTE]
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