Air Filter

jeepdaddy2000 said:

Disclaimer:
I've run everything from sand to pummy dust, so my views may are skewed towards the worst case scenario.

IMHIO, Gauze filters (like the K&N) have no real advantage on gas engines. Gas engines don't draw enough flow at anything but high RPM WOT to see an advantage of gauze over a paper element. Being able to toss the paper element instead of servicing the gauze filter is a major advantage that outweighs the "cool factor" for me.

Diesels are another thing. They draw as much at idle as most gas motors at WOT. Their breathing needs are much more substantial. This is where the gauze filter makes it's money. Unfortunately, the engine pulls so much air that it tends to "open" up the gauze and let fine grit pass (personal experience talking here). So much of the touted advantages of the filter have been negated by it's inability to filter properly. The big intake upgrade for pre 04 Powerstrokes is the "Tymar" upgrade, which consists of a large paper filter mounted on the fender in lieu of a any of the gauze elements and/or their "cold air" intakes.

I run gauze on my quads. They only see sand which is a course medium and coupled with a sand sock, rarely need servicing. Since the stock filters were a foam oil filter anyway, the ease of servicing the former makes it a better choice for me with no loss of filtration.


A quick note on stock style air filter housings. The single funnel intake actually aids in keeping your filter cleaner longer. As the air is brought in, it picks up velocity as it runs down the snorkel. the heavier particles will tend to continue on and hit the filter in front, keeping the rest of the element cleaner. I prefer these to the open performance style housings, especially in dirtier environments, which tend to drew outside air in around the diameter of the filter.

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bob4703 said:

Speakers? I have two Radio Shack mini speakers in the front and a wooden boom box with marine speakers in the rear. Can't hear 'em. Radio stays off unless we are on a mountain road or parked. That might change with the new to me old top. A muffler might help too.

Air filters are like oil, tires, and beer. Everyone has their own preferences and heaven help us if we try to convince them otherwise.

When we first parked the Jeep in the drive it had a 4" Mr. gasket air filter. That little some beach could clog up in a day's time. Everyone said replace it with an original but couldn't tell me where to find one. Close by we have a hillside graveyard where old jeeps go to die--like the elephants do in Africa. He didn't have one to fit a 258 with a YF. "We can make this one work, but honestly I sell them to folks doing restorations and I price them high." I bought a full-size Mr. Gasket and found that it used the same filter as the OEM. Then I discovered that the K&N I bought for my 87 S10 was the same diameter, but a tad taller than the Jeep filter. That\s what it uses today. During pine pollen season it keeps the pollen out of the carburetor. That chit will turn a black Jeep green overnight. I can't tell if it increases fuel economy because I did several things to it at the same time and the mileage did improve. Power maybe, but it did give the engine a different sound.

The main advantage I see with the K&N is that I can refresh it without waiting for the FLAPS to order a new filter which they never had in stock. Refreshing is part of the spring ritual of changing oil, checking the fluids, lubrication, tire rotation etc. If I didn't already have a K&N filter I probably wouldn't have bought it.

That's my $.02 worth although there ain't much you can buy for $.02 anymore.

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Kthflieger said:

Interestingly enough I’ve used K&N twice on different cars and in both cases it changed my torque and lowered my gas mileage. An ASE certified mechanic told me Those results were not uncommon. BTW what did you end up using for a steering column?

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keith460 said:

I like in dash 5-1/4" speakers that fit the CJ dash studs and speakers behind the front seats, Vertical Driven product, with some decent made speakers. Nothing too expensive as being exposed means getting ripped off from prying eyes.
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bob4703 said:

I'll remember that if I ever put a Duramax in my CJ5. Until then it has little relevance.

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keith460 said:

FYI
I used speakers from a Jeep YJ factory roll bar speaker pod for the dash speakers. Good sounding and heavy magnet on those suckers. If you can find them now in a junkyard, I recommend them. And grab as much of the wiring harness and speaker plugs too, you'll need the plugs for the speakers as they are Chrysler type.
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NC 1977 Jeeper said:

I'm looking for the back wedge speaker boxes, where did you pick those up from. I checked out amazon and it said the ones they have do not fit a '77 CJ7. Thanks for all the help.

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keith460 said:

I got them from NAPA Online. Might not fit your year roll bar as they are made for late 1979 and newer style roll bars.

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bob4703 said:

Speakers? I have two Radio Shack mini speakers in the front and a wooden boom box with marine speakers in the rear. Can't hear 'em. Radio stays off unless we are on a mountain road or parked. That might change with the new to me old top. A muffler might help too.

Air filters are like oil, tires, and beer. Everyone has their own preferences and heaven help us if we try to convince them otherwise.

When we first parked the Jeep in the drive it had a 4" Mr. gasket air filter. That little some beach could clog up in a day's time. Everyone said replace it with an original but couldn't tell me where to find one. Close by we have a hillside graveyard where old jeeps go to die--like the elephants do in Africa. He didn't have one to fit a 258 with a YF. "We can make this one work, but honestly I sell them to folks doing restorations and I price them high." I bought a full-size Mr. Gasket and found that it used the same filter as the OEM. Then I discovered that the K&N I bought for my 87 S10 was the same diameter, but a tad taller than the Jeep filter. That\s what it uses today. During pine pollen season it keeps the pollen out of the carburetor. That chit will turn a black Jeep green overnight. I can't tell if it increases fuel economy because I did several things to it at the same time and the mileage did improve. Power maybe, but it did give the engine a different sound.

The main advantage I see with the K&N is that I can refresh it without waiting for the FLAPS to order a new filter which they never had in stock. Refreshing is part of the spring ritual of changing oil, checking the fluids, lubrication, tire rotation etc. If I didn't already have a K&N filter I probably wouldn't have bought it.

That's my $.02 worth although there ain't much you can buy for $.02 anymore.

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XXXJaded said:

Jesus

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