Lol I really hope you're not being serious.

 

^^^x2!!!

 

Dont put a vent below the filter, water will be slung right in by your tires when it rains. Your best bet is to make sure the hole behind the headlights is not blocked by that stupid piece of plastic that sometimes comes stock (mine did, cut it with a hot razor blade). I would actually recommend you cover the existing holes under the filter to prevent water from splashing onto your filter, thats what i did.


And easy way to make a heat shield is to use a sheet of aluminum (like what i used in my case, an old decommissioned road sign. Worked perfect).

I made both of these and both seen an improvement. One is on a 95 2.5 4 banger and the other is on a 00 4.0 i6. Took a total of 3 hours to make them both with only a grinding rock to cut with.






And yes.. all the metal shavings were cleaned up.

 

http://en.m.wikipedia.org/wiki/Warm_air_intake

 

It would pretty much be an upsidedown hood scoop facing forward in the wheelwell. It would probably only be an inch deep.

 

You would never see the benefit from it. The jeep will be getting more air than it can pull already without the vent.



Do you believe everything you read on the internet? You do understand that the reasoning behind the benefits of a CAI is simple physics dont you?
At the same RPM an engine with your "Warm Air Intake" will be using more fuel than one running a true Cold Air Intake.

 

Referenced from research done in 1994...

Wonder why we don't see WAIs for sale ?

Go read the referenced material, the first one. Skip to the conclusions section. Page 10 I think.

You know ANYONE can put info on Wikipedia.

 

Exactly why wikipedia isnt considered a legitimate source for papers in college. I could go change that info to say that bananas will rule the world in 2057.

 

DO IT! Lol. I should at least flag that page.

It says last modified 12 days ago and I don't see where to flag. Probably because I'm on a phone.

 

It may not be considered a legit source for college papers, but it has been found to be more accurate than encyclopedias. It is also more up to data and carries a wider variety of information.

 

I find that directly routing the air intake into the catalytic converter increases my MPG to 50. Take that, hybrids.

 

It's very useful, just cant be trusted as a legitimate source. Theres too many small tidbits of misinformation that slip by.

I tried that once, got awesome MPG but lost all my bottom end power for some reason.. Might have been cause the engine bay was on fire who knows.

 

Here' let's just go with this, real time results showing that a CAI vs WAI really doesn't make a noticeable difference in fuel economy anyway. Please explain to me the simple physics, to me it makes sense that cold air is dense air which means more air entering the engine which means more fuel used, vise versa for warm air. Also, would you like me to mail you a book, or something? We are on the internet, dingus, hence me sending links to internet sources.

Also, hypermilers have been using WAI for years to increase their intake temps for better MPG. It also depends somewhat on how well the engine is suited to the vehicle, because putting a WAI on an underpowered 2.5L would make the MPG worse simply because the engine has to work that much harder to achieve the same speed. Just do a google search for warm air intake.

http://www.metrompg.com/posts/wai-test.htm

Some guys actually route a hose from their intake to right next to the exhaust manifold to increase intake air temps.

 

I never said a WAI wasnt a real thing, its just a stupid idea that yields little benefit. The marginal gains from a WAI could never outweigh the potential drawbacks (such as pre-detonation). For a small price (and FAR less potential risk of failure) a Cold Air Intake will give benefits in both power AND fuel efficiency (If you can keep your foot out of the pedal).

But you know what? If you want to route your intake down around the exhaust manifold and push 200* air into your engine, by all means do so. I'll take my 28mpg getting 2.5L jeep on 32's with a CAI and do my own thing. CAI have been proven time and time again to work.

 

The CAI gives an underpowered engine a needed boost in power, same reason companies are now turning to smaller engines with small turbos. Air density and fuel delivery are technically more, but the engine has to work less to achieve the power it needs to get to speed. A more matched engine will not benefit from a CAI, and will instead benefit from the slight loss in power, but decrease in fuel delivery that the WAI brings. The biggest thing is driving style, as you mentioned. Any mods you do for MPG will be basically negated if you can't keep your foot out of it. I had a WAI on my old Civic that netted 1.5 MPG gain.

Either way, the Cherokee's intake setup doesn't really allow for much improvement for intake air temps. By the time the air reaches the base of the intake it has been heated by the exhaust.