Dry vs oiled

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16plati

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opinions needed on dry vs oiled filter for OE & aftermarket CAI
 

Black

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Most certainly dry for me.
No need to worry about oiling error and dry flow just as much with giving the same protection.
AFE and S&B are likely the top.
 

Trainmaster

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My 67 Econoline has a stock oil bath air cleaner made what Ford called "coir" - coconut husk. Don't know if it filters more than bugs out of the carburetor but it keeps the engine block and manifold and most of the frame from rusting.

At every bump, it vomits oil that the fan heaves everywhere. It drips down the sides of the block when I shut it down. When I change the oil I refill what hasn't splashed or sucked out of the coir air cleaner with the cheapest Red Dot oil I can find. I wrap the motor mounts with plastic bags to keep from being dissolved by the flung oil.

Ah, those were the days.

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TobyU

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You should see the ones on a 8v71 Detroit Diesel MCI bus!! Metal weave stuff with oil bath that's about 15 inches diameter.
They work though, and when they get dirty and restricted, you can tell a world of difference after you clean it. It feels like you got twice the power back.

That meaning as you keep pedal slammed to floor, it gets to same speed in half the time.

Not really that bad and I do miss driving the 40 ft, 4 speed manual spicer from time to time.

It was fun!!
 

lvcjt702

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Dry. It keeps the MAF and throttle body cleaner.

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jeff kushner

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FWIW

We've run oiled air filters for 40 years in my bikes.....no big deal and I've run an oiled K&N in my SLK for the past 180,000 miles....just oil properly but most Over-oil causing issues....this is one of those cases where "more" is bad, very bad!

The bikes are all old tech...no sensors, carbs etc. The '02 car has a complete Canbus system complete with all the sensors, maf, FI etc...also no issues....JMHO


jeff
 

chuck s

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I just switched out the oiled K&N pod filter in the K&N FIPK air box in my S2000 for an AEM dry filter. Just 'cuz as the K&N has shown no problem for the past 5 years. I run the Ford OE filter in my '17 Expedition.

Plenty of testing shows some of these aftermarket filters provide better air flow.


When the tests are carried beyond that they show the acceleration gains are real but too small to be felt by the driver. Do we have a charcoal element in our air cleaners?


-- Chuck
 

1955moose

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I agree with Hawk, kinda. When you improve just the airflow, you actually can make your SUV run lean, and in some cases lose power. Luckily modern computer controlled vehicles have the ability to richen up the mixture to compensate. The best results though would be with a tune, and other add on performance goodies. Breathing for an engine is always a good thing, but just like our bodies, the whole package makes it better. When I did K&N filter swaps on the motorcycles I worked on years back, the carburetors had to be rejetted with larger main jets, and the carburetor needle that controlled the Lions share of the acceleration duties, had to either be lifted a notch or 2, or in some cases, replaced with a thinner one completely. The thinner, different taper one would allow it to run richer. That last step was usually followed by extensive engine mods.

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16plati

16plati

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CAI = Snake oil. Unless you have done something significant to your motor to make it need a lot more air you're wasting cash on a CAI.
Yeah I’ve got a 93 performance tune tht the CAI is calibrated with so it’s not just a drop in
 

TobyU

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The old basic modifications. Just like carb intake headers and exhaust. If more goes in more has to be able to get out.
People with often drill out their mufflers on motorcycles or take out the packing and end up with a lean condition because it free flows on the exhaust but wasn't putting enough in at the carbs. That's why when you put an exhaust system and sometimes just a slip on on a performance by
Ike you need to rejet it.
I had a fuel injected 2000 ZX12R with a power commander box that you could hook to your laptop and download custom ECU fuel maps for it. I tried six or seven till I found the one I like the best. It had a complete UFO exhaust system on it and had been dynoed Factory stock and in dynoed on the same day after the mods and it put out 176.7 rear wheel horsepower vs Factory with something like 147 to 151. But you get your best performance right near lean and I didn't like the throttle response it had so I actually used a different map that probably produce less power but it ran better and smoother for me.
 
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16plati

16plati

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Well until I find the correct size replacement for the oiled k&n, I cleaned and reoiled (very cautiously) the dirty one

Very impressed with k&n recharger air filter cleaner. Results speak for themselves
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Ron1978

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I once run K&N oiled, but had issues with MAF sensors, I went back to regular non oiled filters, way better performance
 
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16plati

16plati

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2002 f-150 4.6l. It kept the check engine light on, I would use very little oil on the filter too.
Yeah thts the thing with those old MAF sensors. The new ecoboosts have 3 “MAP” manifold absolute pressure sensors and even after piling the filter and checking them they are clean. No oil in the intake tubing either. Plus I have a catch can so blowby is no longer a huge concern for me
 

Cy Webit

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I'm about to order a CAI too, going with dry S&B Filters Cold Air Intake Kit (Dry Disposable Filter) 75-5130D
 
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