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.

homemade intake

Thread Tools
 
Search this Thread
 
Old Sep 28, 2008 | 09:45 PM
  #1  
XJ?2010's Avatar
Thread Starter
CF Veteran
 
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Default homemade intake

ok i plan to rig up a cone filter and i can do it no problem BUT i forgot about that line running fromt the valve cover to the airbox so my question is how do i bypass that so i can do my air box mod and just to clear things up i will be removing my airbox not just putting a cone filter in it

Last edited by BlueXJ; Oct 1, 2008 at 03:04 PM.
Reply
Old Sep 28, 2008 | 09:48 PM
  #2  
Belto's Avatar
CF Veteran
 
Joined: Jan 2008
Posts: 1,504
Likes: 0
From: Puerto Rico
Default

well you can always take it out and put a lil breather in..
Reply
Old Sep 28, 2008 | 09:52 PM
  #3  
XJ?2010's Avatar
Thread Starter
CF Veteran
 
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Default

breather meaning?
Reply
Old Sep 28, 2008 | 10:02 PM
  #4  
Belto's Avatar
CF Veteran
 
Joined: Jan 2008
Posts: 1,504
Likes: 0
From: Puerto Rico
Default

its like a lil cone filter made for this sort of stuff.. bc that line what does is lets some air in the valve cover,, so many people (on the car customs world) get aftermarket intakes and put a breather there , you can find them at any auto parts.. its a oil breather lil filter..
Reply
Old Sep 28, 2008 | 10:09 PM
  #5  
wicked_xj's Avatar
CF Veteran
 
Joined: Apr 2008
Posts: 1,272
Likes: 0
Year: 1990
Model: Cherokee
Engine: 4.0 I 6
Default

x2 belto
Reply
Old Sep 28, 2008 | 10:12 PM
  #6  
XJ?2010's Avatar
Thread Starter
CF Veteran
 
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Default

k thanks guys im going to ask my shop teacher tomarrow about it too he knows everything about the 4.0 so he should have some good info but that all sounds pretty good
Reply
Old Sep 29, 2008 | 11:15 AM
  #7  
Belto's Avatar
CF Veteran
 
Joined: Jan 2008
Posts: 1,504
Likes: 0
From: Puerto Rico
Default

just make sure that thing coming form the valve cover is good, bc mine was throwing oil out, and I didnt know till the breather was all coverd up in it and oil ran all threw the engine
Reply
Old Sep 29, 2008 | 11:21 AM
  #8  
okcjeeper's Avatar
::CF Administrator::
 
Joined: May 2008
Posts: 10,039
Likes: 16
From: Okc area
Year: 1991
Model: Cherokee
Engine: 4.0 I6
Default

Yeah a breather attached to the hose end would do exactly what the air box does stock and prevent oil blow by from getting back into the intake.
Reply
Old Sep 29, 2008 | 04:31 PM
  #9  
dude in an xj's Avatar
Senior Member
 
Joined: Sep 2008
Posts: 596
Likes: 0
From: Georgetown, KY
Year: 1998
Model: Cherokee
Engine: 4.0L
Default

I had this set up at one time.

http://www.jeepforum.com/forum/showthread.php?t=462724
Reply
Old Sep 29, 2008 | 05:58 PM
  #10  
BlueXJ's Avatar
Renix Super Guru
 
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Default

I think it needs the vacuum at the intake tube so you need to tie it back into the hose from the TB to the airfilter. The vacuum provided by the intake will scavenge the oil fumes inside the valvecover. JMHO.
Reply
Old Sep 29, 2008 | 06:14 PM
  #11  
Howler_GT's Avatar
CF Veteran
 
Joined: Jul 2008
Posts: 1,217
Likes: 7
From: Schnecksville, PA
Year: 94 XJ
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by dude in an xj


HAD? I presume you no longer have it?
Reasoning?
Reply
Old Sep 29, 2008 | 06:35 PM
  #12  
XJ?2010's Avatar
Thread Starter
CF Veteran
 
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Default

well i talked to my teacher who worked at the jeep dealership in the cherokees prime and he said it would be fine if just got a breather so tomorrow i'll make a run over to muarrys and get a filter,breather,and a small peice of steel to make a reinforcement bracket

LOOK OUT HEATED DISCUSSION AHEAD

what brand filter?
Reply
Old Sep 29, 2008 | 06:42 PM
  #13  
dude in an xj's Avatar
Senior Member
 
Joined: Sep 2008
Posts: 596
Likes: 0
From: Georgetown, KY
Year: 1998
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by Howler_GT
HAD? I presume you no longer have it?
Reasoning?
Went back to stock setup to eventually run an Airflow snorkel.
Reply
Old Sep 29, 2008 | 08:47 PM
  #14  
ktmracer419's Avatar
CF Veteran
 
Joined: Sep 2007
Posts: 4,869
Likes: 14
Default

sweet, some custom hot air intake setups here.

truth is you will see no gain from this, but you would like to think so.

anyway what you are talking about putting a little "filter" on is an emissions control device, when the exhaust gasses sneak by the rings and whatnot they are stuck in the crankcase, that tube is there to recirculate those exhaust gases so they go through the cat and out the tailpipe with their buddies. i know people who argue they got a cone filter for the cleaning aspect of it. truth is they almost never clean them. It will take several stock filters to ustify the cost of one cone filter.

2 cents given
Reply
Old Sep 30, 2008 | 06:59 PM
  #15  
XJ?2010's Avatar
Thread Starter
CF Veteran
 
Joined: May 2008
Posts: 2,914
Likes: 5
Year: 1987
Model: Comanche
Engine: I6 4.0L
Default

This may be true but today i did fab my own up using a cone filter, 4 inch spacer, and a peice of steel. and it did inprove my throttle responce quite a bit also seems more "peppy" now
Reply



All times are GMT -5. The time now is 06:45 AM.