Anyone know if it is worth while to put an air intake in?

Yes an no. If you're ever in a situation where you'd need a snorkel, the air intake has to be removed, otherwise they are usually a halfway OK investment in my opinion. Typically better gas mileage, and it allows your motor to breath a little better. Meaning a little more horsepower. It's usually not a whole lot, but with a 62mm throttle body, and the intake it can add some pep to an old motor, or add a little more beef to the newer ones. Matching an intake with a good exaust will allow your motor to pull in air, and put the exaust back out, allowign it to breath a lot better than stock, making it peppier. I jsut don't know if the exaust upgrades will help your gas mileage.

I notice a difference with my intake when its cold, because i havent built myself a cold air box to isolate it from the engine heat, once the bay gets hot then it feels like the power i get from it drops down. but its always said that its worth while even if its just to make the engine breath better.

save your money.

read THIS (http://www.bobistheoilguy.com/airfilter/airtest1.htm) before you plunk down your hard earned cash on the k&n bilk.

haha i just have a cheap autozone intake FTW!

OK, so I get the filter thing. Ever since my VW days, I figured out that K&N filters were moslty hype. That being said, what about the cold air boxes.....do they help?

*sigh* That article is using the stock air box. I'm talking about Cold Air Intake Systems. Using a Conical Filter and Tubing. And yeah, you can MAKE a CAI at autozone...which I will probably end up doing.

you must ot have read the article. you might want to click on all of the links on the page i linked ;)

http://www.bobistheoilguy.com/airfilter/airtest3.htm

have a look at this one. imagine, if the filters in this testing were as unsatisfactory being in a box, what theie inefficiency would be if they were completely exposed to the dirt.
i have been through the conical filters, and all that jazz... i am back to th stock type box, and am quite content with it.

I experienced it myself. I couldn't believe how thick the dust was in the crossover pipe downstream of the well-oiled K&N filter. I'm back to the stock filter & housing. There is still dust getting through, but nothing like it was with the K&N.

Frankly, I didn't notice any power improvements with the K&N, either. But my jeep is not some heavy-breathing, high-reving performance pavement-bound beast that the K&N was designed for.

I too have tried the K&N, had dust coating the air tube and have gone back to the paper element. Does anyone have an opinion on which brand of paper element filters the most dirt? Are there any brands to stay away from?

^ read the things Erik (Nailer341) posted they have paper filter tests... and tells which is the best.

I read it. In his words, "Only the filters listed above will be tested. I do not have the funds, time or desire to test every possible filter." I am curious what our fellow jeeps think of Fram vs Wix vs Purolator, etc.

I am running the Turbo City dual air intake with conical type filters and outerwears. I do not find any dust downstream in my air intake tubes. There is not much improvement in horsepower yet. There will be more after I fix the exhaust problems. The main reason for the intake was to use the space the stock intake box took for other applications. 2nd battery and air compressor.

I'm running a Fram right now ^.^
It seems to do me just fine.
Fram Air and oil filter.
Can't beat a Fram

At least we know where my loyalties lie. I've never been let down by Fram.

I also run a Fram air filter, no complaints here.

I switched to a CAI 3yrs ago when I didn't know about the dust in the tube thing.When I saw it I had already got rid of the stock box.I have been using a UNI foam filter overtop the K&N with good results.Make sure to use their air filter oil or something that is designed for dirtbikes/dusty environment.
http://www.unifilter.com/online%20catalog/automotive.html
I used one of the "cone shaped"filters on the bottom of the page.

If anyone needs a stock TJ air box I've got one I'm no longer using.

If anyone needs a stock TJ air box I've got one I'm no longer using.

me too :D

me too :D

Me Three! :D

http://www.bobistheoilguy.com/airfilter/airtest3.htm

have a look at this one. imagine, if the filters in this testing were as unsatisfactory being in a box, what theie inefficiency would be if they were completely exposed to the dirt.
i have been through the conical filters, and all that jazz... i am back to th stock type box, and am quite content with it.

I run the K&N conical, with Banks cat back exhaust. I service the filter after every run, and inspect the crossover tube onch a month on average. I've seen very little dust in the tube or the TB. I love the K&N, been using them on all my off road toys (bikes, boats, jeeps). Doing the intake and exhaust mods at the same time gave me a quite noticeable improvment in power, and in the mornings when the engine is cold it sounds like a jet engine starting up. I love that sound! There are more variables involved in the performance of any filter than those used in those tests. I'm not an expert by any stretch, but I know a couple (they work for my company, where delta pressures and micron levels are very important). I ask them questions all the time, that's why I know that those tests, while fairly indepth, don't cover all the variables. Maintenance is key; if you don't do it alot, then stick with the stock unit. Nothing wrong with that filter at all.
Rat

I may want a stock airbox but can it be used with a York 210 along with AC on a 99TJ? Kilby says no just wondered if anyone has tried it. This mod is on my to do list so no sense getting one if it will be in the way.

A stock airbox sits in the same place as the York, so no it will not work. You might be able to move it to above the distributor, I have seen some people do it that way. This is easier:

http://spot.colorado.edu/~davisp/cai1.jpg

The airbox is from a '91 GM 3.3l V6.

Patrick

OK, so I get the filter thing. Ever since my VW days, I figured out that K&N filters were moslty hype. That being said, what about the cold air boxes.....do they help?

A thought on cold air... the point of a CAI is that cold air is more dense then hot air. The more molecules introduced to the cyl- the more the mixture expands and burns, creating more HP.

I put an open air filement on my K1500 street truck and noted great improvements due to multiple reasons, but that was a change from a K&N conical remote setup. Once the bay warms up, I do loose noticable power but I have a reflexxon cowl induction hood waiting to be sprayed and mounted.

This app is definately different from the apps we're speaking of. My K1500 is a street queen packing a reman 350ci w/ higher compression, and dust sure ain't it's thing. It's been off road with no ill effects but CT trails lack mondo dust like I've seen in more arid climate.

I got the AEM Brute Force cold air intake and I love it, I feel the power gain and notice the increase in gas mileage

I got the AEM Brute Force cold air intake and I love it, I feel the power gain and notice the increase in gas mileage


how much of a boost in mpg did you get? :confused:

how much more horsepower does it feel like, or is it ft/lbs of torque? :confused:

Zach S im interested too, what is the epa improvement and overall performance. i was looking at a aem also so let me know.