air intake
heres two I just took. this is a project ive been meaning to get back to, I used duct tape to make the mold fitting for where the piping comes into the stock airbox. Its on my list to go back in and make a fiberglass fitting but ive never worked with fiberglass and you know how jeeps go, always more and more projects so its hard to go back to redo other ones haha
jeeps... gotta love them
thats not sarcasm
JEEP!!!
jeeps... gotta love them
thats not sarcasm
JEEP!!!
why go for the round filter in the square box over a K&N filter made to fit the factory box? doesn't seem to be any extra benefit to fabbing up all that to fit in the stock box.
Honorary Moderator
Joined: Mar 2010
Posts: 8,135
Likes: 16
From: Gilbert AZ/Las Cruces NM
Year: 1996
Model: Cherokee
Engine: 4.0 upgraded
i dont get it either, the factory rectangle air filter has about the same surface area as the round filters..... i just cut out the front of my factory air box and made a piece to divert the air coming from the front into the box
Senior Member
Joined: Oct 2009
Posts: 633
Likes: 0
From: Sutton, New Hampshire
Year: 1995
Model: Cherokee
Engine: 4.0L
And by running that cone filter into the stock air box, you're getting the same temperature of air that you would through a K&N drop in filter, thereby removing the 'cold air' aspect of it. In order to get a true cold-air intake, you'd have to either run it down to the bottom end of the front bumper (bad idea for our Jeeps), or a snorkel. Otherwise it's just a filter, and you've hacked up your airbox for nothing.
And by running that cone filter into the stock air box, you're getting the same temperature of air that you would through a K&N drop in filter, thereby removing the 'cold air' aspect of it. In order to get a true cold-air intake, you'd have to either run it down to the bottom end of the front bumper (bad idea for our Jeeps), or a snorkel. Otherwise it's just a filter, and you've hacked up your airbox for nothing.
thats not true at all, yes I know that they make drop in K&N flat filters but I bought this kit off ebay. It came with the cone flter a 3" pipe and a rupper carb attachment. I ran it for a week open in the engine compartment and then I did this mod. the rubber carb attachment was crap cuz when it would heat up it would warp and collapse. then I modded the K&N into the airbox
it is a true cold air intake. think about it, its airtight mostly and draws air into the airbox from behind the drivers headlight (FRESH AIR). I love it and think it was a great mod, I have plans for a snorel in the future but for now this is a great system in my opinion
you have your opinion, but its just that. Someone asked for pix and I posted them.
Senior Member
Joined: Oct 2009
Posts: 633
Likes: 0
From: Sutton, New Hampshire
Year: 1995
Model: Cherokee
Engine: 4.0L
Well it's not really an opinion so much as a statement of fact. It's not going to hurt your engine any to have it on there, but I wouldn't get your hopes up that it's going to do anything for performance or fuel efficiency, as it's not changing the temp of the air going into the engine at all.
Sorry, but it's not a true cold air intake, no matter how much the guy on Ebay said it was. It'll filter a damn sight better than a drop-in Fram filter though, that's for sure.
Sorry, but it's not a true cold air intake, no matter how much the guy on Ebay said it was. It'll filter a damn sight better than a drop-in Fram filter though, that's for sure.
Honorary Moderator
Joined: Mar 2010
Posts: 8,135
Likes: 16
From: Gilbert AZ/Las Cruces NM
Year: 1996
Model: Cherokee
Engine: 4.0 upgraded
thats not true at all, yes I know that they make drop in K&N flat filters but I bought this kit off ebay. It came with the cone flter a 3" pipe and a rupper carb attachment. I ran it for a week open in the engine compartment and then I did this mod. the rubber carb attachment was crap cuz when it would heat up it would warp and collapse. then I modded the K&N into the airbox
it is a true cold air intake. think about it, its airtight mostly and draws air into the airbox from behind the drivers headlight (FRESH AIR). I love it and think it was a great mod, I have plans for a snorel in the future but for now this is a great system in my opinion
you have your opinion, but its just that. Someone asked for pix and I posted them.
it is a true cold air intake. think about it, its airtight mostly and draws air into the airbox from behind the drivers headlight (FRESH AIR). I love it and think it was a great mod, I have plans for a snorel in the future but for now this is a great system in my opinion
you have your opinion, but its just that. Someone asked for pix and I posted them.
thats not what he is saying....
Not to cause an argument. But it is getting the same temperature air as the stock filter did. you just have an upgraded filter with the same surface area and didnt change anything else to make it a cold air set up....
The only way to make it true cold are is to make a heat shield for the 3 inches gap in between the front clip and air box as it is still drawing in warm air. Yes it is fresh but its also getting the air from the engine bay.
I have to disagree, A heat shield would to the same thing... heat up. not to mention that most of them are not set to the propper gap on the top near the hood.
I also work in the food industry so I have one of those small thermometers and I taped it to the air filter when I went for a 2 hour drive. when I got to my destination I poped the hood and checked it.
it was rite around 60 degrees when it was a 40 degree day. I consider that cold air
I also work in the food industry so I have one of those small thermometers and I taped it to the air filter when I went for a 2 hour drive. when I got to my destination I poped the hood and checked it.
it was rite around 60 degrees when it was a 40 degree day. I consider that cold air
Senior Member
Joined: Oct 2009
Posts: 633
Likes: 0
From: Sutton, New Hampshire
Year: 1995
Model: Cherokee
Engine: 4.0L
Well I'm not going to continue to argue the point with you, because you clearly think you're right. The good part of this is that you're not doing anything that could harm your engine, so not proving the error of your ways isn't going to break anything.
Honorary Moderator
Joined: Mar 2010
Posts: 8,135
Likes: 16
From: Gilbert AZ/Las Cruces NM
Year: 1996
Model: Cherokee
Engine: 4.0 upgraded
I have to disagree, A heat shield would to the same thing... heat up. not to mention that most of them are not set to the propper gap on the top near the hood.
I also work in the food industry so I have one of those small thermometers and I taped it to the air filter when I went for a 2 hour drive. when I got to my destination I poped the hood and checked it.
it was rite around 60 degrees when it was a 40 degree day. I consider that cold air
I also work in the food industry so I have one of those small thermometers and I taped it to the air filter when I went for a 2 hour drive. when I got to my destination I poped the hood and checked it.
it was rite around 60 degrees when it was a 40 degree day. I consider that cold air
I totally agree with halmotors on this but a few things to point out:
1) A heat shield effectively keeps the air in the area of the heat shield cooler by keeping the heat in the metal or plastic and acts as a boundry. The air does not have enough time be affected by the temperature of the heat shield and without a heat shield what is happening is it is mixing the under-hood air with the fresh air.
2) you are correct most heat shields are not set up for the proper gap that are homemade. Big industry heat shields are however. Those that are not set up properly are still letting less of the under-hood air into the set up.
3) you recorded 60* on a 40* day when you drove it for 2 hours. the outside temperature heated up 20* in the air box. 20* is a lot considering that the air is never stagnate, it is constantly pulling in fresh air, so now consider how much engine air it pulled in on your 2 hour drive. a true cold air intake would have stayed at 40-45*. Your recorded 60* would have been the same with a stock air filter in your set up. Also now consider that the temperature rises outside to say 100* you will notice your electric fan is kicking on a bit more and the under-hood temperatures are much hotter than they were at 40* i guarantee you will see more than a 20* rise in temperature in the air box. A cold air intake would stay record the same ambient air temperature outside.
4) to make your set up a cold air intake you could cut out the front of your stock air box then run a material of your choice, since you work in the food industry you could even use cutting boards, and cut them so they are sealed to the front radiator side and front clip. You could have a piece from the radiator side going to the side of your air box, a piece from the top of the header panel to the top of your air box, making sure that the side and top are connected, and then a final piece from the outer most side to the front of the clip, again making sure the top and the sides are connected. This makes a funnel for the fresh air to be directed into and it blocks out all of the under-hood, hotter, air from mixing.
5) check PROPER spelling

Dont take this as me bashing on you, I am just trying to give constructive criticism to help you along your way to having a TRUE cold air intake
, not just an imitation . Last edited by 96_xj; Apr 5, 2010 at 12:25 PM.
Senior Member
Joined: Oct 2009
Posts: 502
Likes: 0
From: Redlands, CA
Year: 1992
Model: Cherokee
Engine: 4.0L I6
Member
Joined: Sep 2009
Posts: 238
Likes: 0
From: Bay Area CA
Year: 1993
Model: Cherokee
Engine: 4.0 I6 (30 over)
heres my cold air intake. real easy to make. just a peice of abs a spectre filter and a couple sprinkler fittings. and i made the heat sheild out of a peice of alu. and some hose on the edges. cost me less than 50 bucks!


I totally agree with halmotors on this but a few things to point out:
1) A heat shield effectively keeps the air in the area of the heat shield cooler by keeping the heat in the metal or plastic and acts as a boundry. The air does not have enough time be affected by the temperature of the heat shield and without a heat shield what is happening is it is mixing the under-hood air with the fresh air.
2) you are correct most heat shields are not set up for the proper gap that are homemade. Big industry heat shields are however. Those that are not set up properly are still letting less of the under-hood air into the set up.
3) you recorded 60* on a 40* day when you drove it for 2 hours. the outside temperature heated up 20* in the air box. 20* is a lot considering that the air is never stagnate, it is constantly pulling in fresh air, so now consider how much engine air it pulled in on your 2 hour drive. a true cold air intake would have stayed at 40-45*. Your recorded 60* would have been the same with a stock air filter in your set up. Also now consider that the temperature rises outside to say 100* you will notice your electric fan is kicking on a bit more and the under-hood temperatures are much hotter than they were at 40* i guarantee you will see more than a 20* rise in temperature in the air box. A cold air intake would stay record the same ambient air temperature outside.
4) to make your set up a cold air intake you could cut out the front of your stock air box then run a material of your choice, since you work in the food industry you could even use cutting boards, and cut them so they are sealed to the front radiator side and front clip. You could have a piece from the radiator side going to the side of your air box, a piece from the top of the header panel to the top of your air box, making sure that the side and top are connected, and then a final piece from the outer most side to the front of the clip, again making sure the top and the sides are connected. This makes a funnel for the fresh air to be directed into and it blocks out all of the under-hood, hotter, air from mixing.
5) check PROPER spelling
Dont take this as me bashing on you, I am just trying to give constructive criticism to help you along your way to having a TRUE cold air intake
, not just an imitation . 
1) A heat shield effectively keeps the air in the area of the heat shield cooler by keeping the heat in the metal or plastic and acts as a boundry. The air does not have enough time be affected by the temperature of the heat shield and without a heat shield what is happening is it is mixing the under-hood air with the fresh air.
2) you are correct most heat shields are not set up for the proper gap that are homemade. Big industry heat shields are however. Those that are not set up properly are still letting less of the under-hood air into the set up.
3) you recorded 60* on a 40* day when you drove it for 2 hours. the outside temperature heated up 20* in the air box. 20* is a lot considering that the air is never stagnate, it is constantly pulling in fresh air, so now consider how much engine air it pulled in on your 2 hour drive. a true cold air intake would have stayed at 40-45*. Your recorded 60* would have been the same with a stock air filter in your set up. Also now consider that the temperature rises outside to say 100* you will notice your electric fan is kicking on a bit more and the under-hood temperatures are much hotter than they were at 40* i guarantee you will see more than a 20* rise in temperature in the air box. A cold air intake would stay record the same ambient air temperature outside.
4) to make your set up a cold air intake you could cut out the front of your stock air box then run a material of your choice, since you work in the food industry you could even use cutting boards, and cut them so they are sealed to the front radiator side and front clip. You could have a piece from the radiator side going to the side of your air box, a piece from the top of the header panel to the top of your air box, making sure that the side and top are connected, and then a final piece from the outer most side to the front of the clip, again making sure the top and the sides are connected. This makes a funnel for the fresh air to be directed into and it blocks out all of the under-hood, hotter, air from mixing.
5) check PROPER spelling

Dont take this as me bashing on you, I am just trying to give constructive criticism to help you along your way to having a TRUE cold air intake
, not just an imitation .
Like many have said it isn't much of a cold air intake...... You could do a box with a removable top made out of 1/2 metal then run a outlet out of the side of the fender and put a little scoop out to get some fresh air in but by then you have probably spent more money then a KN square filter...... on the flip side with the cone air filter you get that sweet sucking sound....lol



