Diesel Bombers - Good homemade cold-air intake system*

If you're pulling in hot, under hood air, you're not getting as much power, with lower EGTs as you could otherwise.

If you want to do something "Home-Made", try this . . . .

Find a thin-walled stainless steel soup pot with matching lid AKA: Stock Pot.

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Using a Big Honkin Air Filter (BHAF) for your measurements . . . .

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Shorten the pot so it's a little taller than your BHAF. Give it about 1/2 ~ 3/4" extra to account for some gasketing. I used some sheet-metal shrinkers (HVAC tool) to make the tube of the pot stick into the bottom once I shortened things.

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From there I simply riveted it together.

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Then I cut a rectangular window in the pot that would allow connecting it to the front of the truck behind the headlights. I used some thin sheet metal commonly used to make those seamless gutters to make a duct.

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Set your BHAF in there such that the incoming air can get around things for even distribution.

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Now cut the lid to match the offset filter.

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Things should stack-up like this so far.

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Now use some 1/2" sheet foam rubber to make a gasket for the lid and a round disc for the bottom of the pot so the filter will be somewhat squeezed snug when you put it all together. I used a couple of small Ell brackets to support the butt of the installed filter. See if you can find some snap-action clips to hold the lid on.

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It should look something like this so far .. ..

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