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Old 06-01-2008, 10:22 PM
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Air cleaner vs. rain??

Quick question. Say I were to cut a hole in my hood to poke my air cleaner out of there, would the rain affect this at all or should the filter keep it out?? The reason I ask is because I saw an old rod the other day all done up going down the highway in the pouring rain with the air filter right out of the hood and it didnt seem to suck in any of that rain. Would it matter which filter I went with or are they all a safe design meant to keep the rain out??

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Old 06-01-2008, 11:17 PM
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Why do you need to cut a hole in the hood. Just get the right drop base aircleaner that will fit under your hood.
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Old 06-02-2008, 01:27 AM
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I wouldn't worry about a little rain. I often use a spray bottle to squirt liquid water in my carb while the engine is running to help break up upper cylinder carbon. I think it would take a pretty serious downpour to hydrolock the engine. I'd be more worried about the occasional splash you get from an oncoming car; you know, those ones that make you crap your pants when a semi tosses a huge puddle on you on the freeway?
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Old 06-02-2008, 03:18 AM
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Just put a cool looking scoop over it..........
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Old 06-02-2008, 05:18 PM
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I had a Ford Torino with a functional hood scoop, and the rain protection wa simple.

The base of the air cleaner was standard size. In the center was a cover that only went to the edge of the filter, which left about a 3 inch gap all around for air to enter the filter. In the gap area there was a hole in the bottom of the housing, with a rubber drain hose.

On top of the air cleaner went another full diameter cover that sealed to the hood with a rubber gasket. This cover had a large hole in the center that matched the opening in the hood. Air came in through the scoop and down into the filter, and it had to make a couple of right angle turns. All the rain collected in the bottom of the large air cleaner housing (outside the filter) and was drained off from that area. The filter got damp sometimes, but never really wet.

On the factory Ford air cleaner they had a vacuum operated flapper under the hood scoop. This held the flapper closed at high vacuum (idle, etc.), and kept water out completely. This meant they needed to have an additional air inlet on the side of the air cleaner to let air in when the top flapper was held closed by high vacuum.

This web site has pictures of a similar system from a Mustang.
http://429mustangcougarinfo.50megs.c...ormation_2.htm
The pictures of the Cougar setup (near the bottom) and the "Air Cleaner Dimensions - for 71 429 Mustang ram air air cleaner" should give you something to work from.

Bruce
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Old 06-02-2008, 05:30 PM
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It would not be the water getting sucked in the carb that I would be worried about.
Have you ever tried to breath through I wet wash cloth? How about putting a KaN washable air filter on while its still a bit wet? It won't let air pass while wet.
No air..NO fun.
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Old 06-02-2008, 06:53 PM
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Hay Curtis,
When your bottle of liquid water runs out, do you
then use dehydrated water?
Rich
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Old 06-02-2008, 07:55 PM
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Well water can be a liquid. solid or gas...
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