Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

air intake

Old Jun 8, 2010 | 12:29 PM
  #31  
The91XJ's Avatar
Senior Member
 
Joined: Jul 2009
Posts: 735
Likes: 1
From: Utah
Year: 1999
Model: Cherokee
Engine: I6 4.0L
Default

X100 on the drop in K&N. I don't see why everybody takes out their stock air box and throw in crappy spectre filters from checker. For like $10 more you can drop in a K&N filter. The stock air box, in my opinion was a pretty good design by jeep to protect the filter from water and other objects, and i would be willing to bet that the box helps direct colder air into the engine than a cone filter without the box. The intake systems that everybody is doing has the filter in an open area right next to the engine.
Reply
Old Jun 8, 2010 | 02:07 PM
  #32  
XJSETH's Avatar
CF Veteran
 
Joined: Jan 2009
Posts: 3,513
Likes: 0
From: Aurora
Year: 1997 XJ
Model: Cherokee
Engine: 4.0 HO JASPER MOTOR
Default

so i have the whole K&N kit with the hose and heat shield does that make it wrong? mine works just fine and i get great airflow i personally hate water and mud so its perfect for me
Reply
Old Jun 8, 2010 | 02:38 PM
  #33  
bluedragon436's Avatar
Seasoned Member
 
Joined: May 2010
Posts: 309
Likes: 0
From: Wherever the AF sends me!!
Year: 1997
Model: Cherokee
Engine: 4.0
Default

With the complete K&N setup with the heatshield helps keep a good majority of the heat away from the filter... much more than just sitting a cone filter where the air box used to be, or even in the base of the old airbox.... as soon as I can I plan to replace the stock paper type air filter with a K&N, but since I had just replaced it right after purchase of the Jeep with a new Fram it can wait just a bit longer...
Reply
Old Jun 8, 2010 | 08:32 PM
  #34  
mud_digger's Avatar
Senior Member
 
Joined: Feb 2010
Posts: 713
Likes: 0
From: central michigan
Year: 1997
Model: Cherokee
Engine: 4.0
Default My Intake

I just made this intake like 3 days ago as well as the box. Cost me $40. Works great. What ya think?
Attached Images      
Reply
Old Jun 9, 2010 | 08:42 AM
  #35  
Ladies's Avatar
Seasoned Member
 
Joined: Apr 2010
Posts: 335
Likes: 0
Model: Cherokee
Default

I'm new to jeeps and all but I know in that engine bay it is hot as hell. Why not just line the stock air intake box on the inside with a type of heat shield and then direct the opening in the front of the box to somewhere where it actually gets cold air? Just an idea, again i'm knew and idk how well it will work.
Reply
Old Jun 9, 2010 | 09:41 AM
  #36  
chindo's Avatar
Junior Member
 
Joined: Jun 2010
Posts: 31
Likes: 0
Model: Cherokee
Default

In order to actually make performance better the intake tube should be smooth to allow the airflow to go into the intake undisturbed..
Reply
Old Jun 9, 2010 | 01:00 PM
  #37  
Troth's Avatar
CF Veteran
15 Year Member
 
Joined: Jul 2009
Posts: 1,005
Likes: 3
Year: 1992
Model: Cherokee
Engine: Inline 6 4.0L
Default

Originally Posted by Ladies
I'm new to jeeps and all but I know in that engine bay it is hot as hell. Why not just line the stock air intake box on the inside with a type of heat shield and then direct the opening in the front of the box to somewhere where it actually gets cold air? Just an idea, again i'm knew and idk how well it will work.
Thats what I did with mine, I routed my K$N into my stock airbox. It draws air from behind the drivers headlight, Id consider that cold enough for me. mine moves alot of air so i dont think the air sits in there long enough to get hot. ive tested with a thermometer and gotten decent results
Reply
Old Jun 9, 2010 | 01:01 PM
  #38  
Troth's Avatar
CF Veteran
15 Year Member
 
Joined: Jul 2009
Posts: 1,005
Likes: 3
Year: 1992
Model: Cherokee
Engine: Inline 6 4.0L
Default

Originally Posted by mud_digger
I just made this intake like 3 days ago as well as the box. Cost me $40. Works great. What ya think?

and this is pretty much the same thing as routing it into the stock air box, its drawing air from the same spot, but its enclosure looks larger
my 2 Cents
Reply
Old Jun 16, 2010 | 02:23 PM
  #39  
Ladies's Avatar
Seasoned Member
 
Joined: Apr 2010
Posts: 335
Likes: 0
Model: Cherokee
Default

Originally Posted by Troth
Thats what I did with mine, I routed my K$N into my stock airbox. It draws air from behind the drivers headlight, Id consider that cold enough for me. mine moves alot of air so i dont think the air sits in there long enough to get hot. ive tested with a thermometer and gotten decent results
Thats what I had in mind.. Cut some of the metal behind the headlight and attach the air box to it. The headlights have big enough gaps around them to let a sufficient amount of cool air in. The stock air box would only house the aftermarket cone filter. The more insulation it has, the better. I would go a step further and line the inside of the air box with heat insulations and wrap the tube in insulation (similar to drag racers turbos). All in all I doubt it would give you more than 5hp to the wheels even with all that.
Reply
Old Jun 17, 2010 | 06:58 PM
  #40  
strech117's Avatar
Junior Member
 
Joined: May 2010
Posts: 80
Likes: 0
From: Calgary AB
Year: 1991
Model: Cherokee
Engine: I6 HO
Default

i thought half the point in throwing one of these "cold air" cone filters in was because it also increased your airflow. any truth in that? or is KN the way to go for cooling and flow rate?
Reply
Old Jun 19, 2010 | 05:41 AM
  #41  
87xjWagoneer's Avatar
Junior Member
 
Joined: Jun 2010
Posts: 45
Likes: 0
From: Huntington, IN
Year: 1987
Model: Wagoneer
Engine: 4.0
Default

Originally Posted by strech117
i thought half the point in throwing one of these "cold air" cone filters in was because it also increased your airflow. any truth in that? or is KN the way to go for cooling and flow rate?
There is no such thing as a cold air cone filter. "Cold air" means air is being drawn in from somewhere outside the engine compartment. You could have a cold air ntake ans still use the stock filter. A cone filter can increase air flow in two ways. One, the filtering materials used can allow for more flow than a stock paper filter. Two, If the cone filter you chose has a greater surface area than the stock filter than it can pass air at a higher rate. In my opinion, the drop in K&N is the simple and effective way to upgrade your intake. Just slapping a cone filter in the engine compartment is not going to gain you much performance unless you seal it off from the engine compartment and make it a true cold air intake.
Reply
Old Jun 20, 2010 | 10:15 PM
  #42  
strech117's Avatar
Junior Member
 
Joined: May 2010
Posts: 80
Likes: 0
From: Calgary AB
Year: 1991
Model: Cherokee
Engine: I6 HO
Default

Originally Posted by 87xjWagoneer
There is no such thing as a cold air cone filter. "Cold air" means air is being drawn in from somewhere outside the engine compartment. You could have a cold air ntake ans still use the stock filter. A cone filter can increase air flow in two ways. One, the filtering materials used can allow for more flow than a stock paper filter. Two, If the cone filter you chose has a greater surface area than the stock filter than it can pass air at a higher rate. In my opinion, the drop in K&N is the simple and effective way to upgrade your intake. Just slapping a cone filter in the engine compartment is not going to gain you much performance unless you seal it off from the engine compartment and make it a true cold air intake.
ya i know, thats why i said "cold air" haha. they sell all cone filters as cold air filters. its just that from all the reading ive been doing on this site and others it sounds like the I6 engines benefit alot from a large airflow more so than just moderate cold air flow. so wouldnt the best bet be to rig up a cone filter (which is supposed to have the highest, or among the highest, flow ratings) and rig it up to pull in the coldest air possible?
Reply
Old Jun 20, 2010 | 10:53 PM
  #43  
jeeptogofast's Avatar
Junior Member
 
Joined: Apr 2010
Posts: 94
Likes: 0
From: Amarillo, TX
Year: 1988
Model: Cherokee
Engine: 4.0 with bolt-ons
Default

Originally Posted by rickybarth
just make one i just did it today

Thats what mine looks like without the box, oh and my filter is RED
Reply
Old Jun 21, 2010 | 02:17 AM
  #44  
realtreeaphd's Avatar
Junior Member
 
Joined: Dec 2009
Posts: 43
Likes: 0
Year: 1995
Model: Cherokee
Engine: 4.0 HO
Default intake

Dude i got a Pontiac GT cold air to fit on my jeep its pretty funny i can put some pics up for you if you want
Reply
Old Jun 21, 2010 | 08:27 AM
  #45  
rickybarth's Avatar
Seasoned Member
 
Joined: Oct 2009
Posts: 489
Likes: 0
From: long island
Year: 1997
Model: Grand Cherokee
Engine: 4.0
Default

thats a nice intake
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:18 PM.