High Flow Drop In Filter

[T Jones]

Can anyone suggest a good high flow drop in air filter?

 

[kurek]

If you have a 4th gen Hemi you can just get the ecodiesel air filter. Much deeper pleats, it's probably 30% more total surface area to allow air in. Lots of people have done the ecodiesel lower airbox mod (bottom half of airbox, inlet elbow, filter) - no idea if it adds any power but it looks 100% factory, is inexpensive and comes with no drawbacks.

 

[T Jones]

If you have a 4th gen Hemi you can just get the ecodiesel air filter. Much deeper pleats, it's probably 30% more total surface area to allow air in. Lots of people have done the ecodiesel lower airbox mod (bottom half of airbox, inlet elbow, filter) - no idea if it adds any power but it looks 100% factory, is inexpensive and comes with no drawbacks.

That sounds great and I like the idea. But, I have a question. If it 'possibly' doesn't add any more power, why do folks make that mod?

 

[turkeybird56]

Dropping in an air filter not gonna do much. U would have to do a CAI and or RAM AIR and maybe a tune for benefit. I have an AEM reuseable dry filter drop in on MY 19 5.7L non E-torque. Not done much for ne thing, but does allow lil more air into motor. But I also changed out tires for heavier Falkens and got rid of SRA's, so any gain lost in heavier and more rubber on the ground (boy was I happy I had better tires on truck in February during Freak Snow and Ice). PPL have changed out to ED boxes, get some more air into engine, but w/o a lot more mods, not gonna do much. All IMHO...

 

[T Jones]

Dropping in an air filter not gonna do much. U would have to do a CAI and or RAM AIR and maybe a tune for benefit. I have an AEM reuseable dry filter drop in on MY 19 5.7L non E-torque. Not done much for ne thing, but does allow lil more air into motor. But I also changed out tires for heavier Falkens and got rid of SRA's, so any gain lost in heavier and more rubber on the ground (boy was I happy I had better tires on truck in February during Freak Snow and Ice). PPL have changed out to ED boxes, get some more air into engine, but w/o a lot more mods, not gonna do much. All IMHO...

I'm not really convinced of the CAIs, unless they actually pull in cold air from the fender well.

 

[turkeybird56]

I'm not really convinced of the CAIs, unless they actually pull in cold air from the fender well.

I had a CAI on my 2001 F150 Triton, LOL< way back when. It helped a lil but was great for Sound Effects. But yeah, either the CAI or RAM air not gonna do much unless U do some tuning unless U R radical and put on a whipple, and long tubes and such. Lots of Mods can be done, if U got the $$$$ etc.,.

 

[Wild one]

Can anyone suggest a good high flow drop in air filter?

Just a little tidbit for you.Any stock replacement fliter that claims to be a "high flow" filter,also means it allows more crap through the filter. If you're so inclined you can do the eco-diesal lower box and filter,and add a homemade ram air duct to it.It'll match or exceed the majority of after market airboxes for flow and filteration,plus shouldn't cost you anymore then 40 bucks to build,and you get the satification of building it yourself.Do a search on here,there's a couple older threads showing how guys have built a homemade ram air duct to feed the stock box,and i think there's even a thread showing how a guy did it on his lower eco-diesal box

 

[kurek]

The factory intake IS a CAI .

That sounds great and I like the idea. But, I have a question. If it 'possibly' doesn't add any more power, why do folks make that mod?

People just like jewelry and legos.

It's plausible that it makes a tiny bit of power, and I'm as certain as I know the sun is hot that it makes exactly as much power as any other aftermarket intake with the definite exception of Vararam and the possible exception of the Mopar "nostril" intake .

The elephant in the room here is that OEM's know how engines work and how to make power. They have a lot of targets to meet like emissions, fuel efficiency, NVH, all that - back in the early fuel injection days like 80s/90s it was necessary to run low (by today's standars) flowing heads, small intake manifolds/throttle bodies/etc in order to tune the system for low RPM driveability and efficiency. Now we have variable geometry intake manifolds, variable valve timing, precisely controlled electronic throttle bodies, fuel and spark timing - all those things can be tuned to produce efficiency and power at any RPM so every modern vehicle has huge flowing intakes now, compared to 30 years ago.

If there ever was a time you could truly add power with an aftermarket intake that time was decades ago, you really think Ram is going to go to the expense of building a variable intake runner length manifold and then forget to give it enough air at the filter?

Vararam builds power because it pretty much eliminates any restriction or corners the air has to go around on its way in the engine.. air goes in the grille and in the manifold directly. But they couldn't sell that on a OEM truck because casual owners can't even be bothered to put air in their tires, a big tray intake would let it get full of leaves or mice would build a nest in it and start a fire, etc..

 

[turkeybird56]

Yeah the RAM AIR systems R nice, but as U said, most of the stuff kinda done unless U want to go crazy on stuff. Maybe 30 years ago for me, now I just stay stock and insure keep up MX ref filters and oil etc....

 

[2012RAM1500RT]

I have the Vararam, I'm not going to claim the hype of better MPG or HP. I bought it for the old school looks and the old school looks only. My truck runs completely stock at 14.1 second 1/4 mile so don't know if the Vararam helped or not but it looks great and sounds great!

 

[seabrook]

i got the aem dryflow off of amazon

 

[Rlaf75]

With todays modern computer controlled engine's CAI's are pretty much useless other than looks and maybe sound. In my opinion, unless you're building the motor, heads cams and exhaust and a tune dont waste your money.

 

[hunterdan]

I'm not really convinced of the CAIs, unless they actually pull in cold air from the fender well.

I've done testing on a tundra which has a stock system very similar to the ram. Tested both stock and an s&b with the access cover on and off. Stock stayed cooler a little longer in stop and go traffic, but took forever to cool down to within 5 degrees of ambient when driving. The s&b had a similar effect with the cover on. Now, the biggest kicker is with the cover off, it heated up faster in stop and go, but immediately started to cool down, and got down to within 5 degrees of ambient in a significantly shorter amount of time. Once moving 35+, the s&b without the cover stayed cooler than stock (pulling from fender). But the tundra didn't have grille shutters.

 

[SeppW]

Can anyone suggest a good high flow drop in air filter?

The only ways too measure effectiveness (or ineffectiveness) are on a dyno and oil analysis; the former not a cheap method. However, the stock airbox is pretty good at flowing air for a NA engine. About the only option to get more air in is forced induction (blower or turbo) and that usually has drawbacks such as premium fuel, fuel volume, etc. ROI is pretty low in HP gains if other mods are not done, adding to costs. After market drop ins come either oiled or dry and use different media. K&N, AFE, Green, etc. Many boast flow volume, but never say anything about holding capacity, filtration particle size, and filtration efficiency. The last two are pretty important. Search for a filter that captures the smallest junk (think 4 microns or less) and does it well (100% is ideal, but impossible to achieve, so closer to 100 the better).

 

[NCRaineman]

Have sworn by K&N drop-in filters for many years now. Run them on vehicles that I'm not modding enough to bother with a full intake and air box swap and they do just fine. You aren't going to have any big gains from just a filter swap, but it will save you having to buy a new paper filter every year. Might save some money depending on how long you keep the vehicle, will definitely create less waste.

 

[T Jones]

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I have the Vararam, I'm not going to claim the hype of better MPG or HP. I bought it for the old school looks and the old school looks only. My truck runs completely stock at 14.1 second 1/4 mile so don't know if the Vararam helped or not but it looks great and sounds great!

Nice! It definitely looks old school.