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Old 11-14-2017, 12:21 PM
NOBLNG NOBLNG is offline
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Default Air Compessor Intake

Has anyone converted a larger compressor to use an automotive type air filter. A filter for a full size Chevy is a lot cheaper than the two 4-3/8" ones my compressor requires. One of the plastic housings is cracked, so upgrading may be a better way to go than replacing. Thoughts?
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Old 11-14-2017, 12:26 PM
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2 things:
1. pipe it outside
2. put filter outside under roof.
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Old 11-14-2017, 12:38 PM
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GWIZ GWIZ is offline
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I had a friend that would Cut the automobile filter and make it fit a square encasement for his air compressor.

The filter on my car has what looks like silicone around the sealing perimeter that should cut easily. check out an 82 Subaru filter, but it is about "1-3/4" wide likely too much.

In other words cut the filter and bend it around making it smaller to the size you need.
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Last edited by GWIZ; 11-14-2017 at 12:48 PM.
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Old 11-14-2017, 01:31 PM
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Quote:
Originally Posted by digger doug View Post
2 things:
1. pipe it outside
2. put filter outside under roof.
What he said! You'd be surprised how much quieter it will be, in your shop, with that thing sucking air outside. You might be able to fab something up for a filter housing and then you can use whatever automotive filter you want.
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Old 11-14-2017, 02:08 PM
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Quote:
Originally Posted by Shopmonkey View Post
What he said! You'd be surprised how much quieter it will be, in your shop, with that thing sucking air outside. You might be able to fab something up for a filter housing and then you can use whatever automotive filter you want.
Heck you could use a furnace filter if the box outside is big enough....
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Old 11-14-2017, 03:42 PM
NOBLNG NOBLNG is offline
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I can build any kind of filter canister I need. I don't really want to put it outside, as it will get forgotten back there. Hell, it gets forgotten right on the compressor. We did build an insulated sound room around it when we renovated the building, so it isn't too loud.
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Old 11-14-2017, 04:25 PM
kbs2244 kbs2244 is offline
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I have not done it
(I have only used a small car muffler to quiet down a big pump)

But rumor has it the if you use complete auto intake plumbing you get not only cheap filters but the quieting effect as well.

Cars have the same intake noise problem as compressors.
But thy do a much better job of controling it.
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Old 11-14-2017, 07:34 PM
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I think Chris has a K&N you can get for cheap
I have done that in the past by machining an adapter that mates up the chosen filter to the compressor usually for the older donut style filter.
my compressor sits in a room in a shed 200 ft from any thing so the filter stays clean
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Old 11-14-2017, 08:00 PM
NOBLNG NOBLNG is offline
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A local vendor wants $40 bucks each for a metal filter housing that will fit my compressor at work. That's not bad... but they want $37.00 per filter. I can get them for less than half that from Acklands, which I still think is expensive.

So ...I went and bought two CA326 filters for $7.79 each plus taxes. It was the cheapest one on the shelf at Canuck Tire! This filter fits any full size Chevy from the 70's and likely a lot more. It is highly unlikely that it will ever be an obsolete part in my lifetime! I plan to build a housing if I can't find one at a wrecker tomorrow and modify them.

The work compressor has two 1" NPT inlets, so all I need is 1" hose barbs and some non-collapsible hose. My home compressor will take a little more fab work, as it has three cheesy bolted on foam intake filters.
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Old 11-14-2017, 08:14 PM
NOBLNG NOBLNG is offline
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Actually, 1-1/4" shop vacuum hose fits nice and snug over 1" sch. 40 pipe.

Last edited by NOBLNG; 11-14-2017 at 08:46 PM.
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