How do 'cold air's' breathe?
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
Molon Labe
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
How bout this one. 99-03 SuperDuty 7.3L Diesel
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
that does look good but you got to buy there air box to make it work right.. like said above..a lot of cash for a hood and some cold air...i wounder how it funnles the water out???
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
I agree that is a lot of money, too much money.
My 74 Firebird has a kind of dam inside the hood that aair has to go around. The water is then drained through a channel. My big rig has a drain right in the air cleaner housing. IDK how this one does it, but I'm sure that has been thought of.
There won't be one of these in my future. I would prefer a cowl induction but there is no way I'm spending that kind of money for one.
My 74 Firebird has a kind of dam inside the hood that aair has to go around. The water is then drained through a channel. My big rig has a drain right in the air cleaner housing. IDK how this one does it, but I'm sure that has been thought of.
There won't be one of these in my future. I would prefer a cowl induction but there is no way I'm spending that kind of money for one.
Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Nope, wouldn't consider letting go of my AFE!! They are proud of them though, I wish I had gotten the prefilter with mine though. Clay do you know if they've changed the style of the filter recently? I helped a friend this past weekend install the same intake I have but his filter is different; his just had the filter element only on the sides of the cone where mine also has it on the end that pionts to the hole in the fender. Is this a newer design or some kind of diferent model? It looks like the same blue filtered stage II that I have other than that difference in the filter.
There are two differant filters from AFE...
The Proguard 7, which has only the main fliter and not the inner cone
And the proguard 5 which has the inner filter.
I prefer the proguard 5...
Postmaster
Joined: Jun 2006
Posts: 2,647
Likes: 0
From: Fulltime RVer
...If not for the 'zoodad' mod where would the air come from? I know there's a hole in the fender right in front of the filter but I tried to trace a path for the outside air to get in there and just can't find much. I was thinking about making a ram air type funnel to mate up to the zoodad hole and run it past the battery to the filter but am not sure if this would be of much use. Obviously the truck is getting enough air but I don't see how it's getting to such a closed off area where the filter is. What do ya'll think?
(yeah I know it's a stupid question but it's really irritating me.) ...
(yeah I know it's a stupid question but it's really irritating me.) ...
I estimate there's about 4 ft^3 of free air space under the hood ...so if the engine is ingesting a 400 cfm airflow ...the air filter sucks all of the available air out of the engine compartment 100 times each minute ...which means all of the available air is sucked out in 0.01 min or 0.6 sec ...and at 2,800 rpm the amount of air under the hood is only enough air to sustain 28 revolutions of the crankshaft!
A 3.8"x3.8" zoodad hole has a 0.1 ft^2 opening ...and at a 60 mph road speed that hole ingests... (5,280)(0.1)=528 cfm of cool ambient airflow ...so it doesn't take a very large zoodad hole to provide the make-up airflow as long as you're traveling at highway speeds.
On the other hand about 5,280 cfm of air is coming through the grill opening ...but this air must pass through the A/C condenser, IC, and radiator ...which means it's much hotter than the ambient airflow through the zoodad hole ...and the net effect of installing just a zoodad hole without a complete "sealed" cold air intake system is that 90% of the air ingested by an "open element" under the hood air filter is the "hot" airflow through the radiator while only 10% is the "cool" ambient airflow from the zoodad hole!
Also without a complete "sealed" cold air intake system the air filter eats a lot of dust that's kicked up under the hood by the front tires!
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
I thought I saw a pic once where someone added an air funnel to the zoodad hole. Do you know what that funnel was made from or have any info on it. I have done some searching but can't find anything.
