Fabrication & builders section. All fabrication posts go here.
XJ/MJ/ZJ/WJ Only projects go here. Questions belong in modified tech.

The Homebrew Jeep Mod Thread

Thread Tools
 
Search this Thread
 
Old Dec 29, 2015 | 07:36 AM
  #1111  
oldskool13's Avatar
Junior Member
 
Joined: Dec 2015
Posts: 47
Likes: 1
From: Great White North
Year: 1991
Model: Cherokee
Engine: 4.0
Default

Originally Posted by HS00XJ
Hot air intake
That's a good thing in a Wisconsin winter. I can't imagine these engines being real fond of -50F air.
Reply
Old Dec 31, 2015 | 03:05 AM
  #1112  
Basslicks's Avatar
No, I don't lick fish.
Premium Member
15 Year Member
Liked
 
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by oldskool13
That's a good thing in a Wisconsin winter. I can't imagine these engines being real fond of -50F air.
Just playin' devils advocate here... but after a quick little 5 minute or so search of average temps in wisconsin from 1971-2000 it appears that the lowest average in the northernmost portion of the state is about -30*f

http://www.aos.wisc.edu/~sco/seasons...EXT-71-00c.gif

Not saying that's a whole ton better, but I was a little surprised when you threw the figure of -50 out there.

In response to that, he may have slightly harder time getting it started, but once it's running how would it really be that much different than that of the factory airbox? Wouldn't it be just as affected by underhood temps as an airbox with a filter in it?

Not saying it's the most ideal setup, but I just don't see it being detrimental.

Last edited by Basslicks; Dec 18, 2017 at 04:31 AM.
Reply
Old Dec 31, 2015 | 03:08 AM
  #1113  
LiamLikeNeeson's Avatar
Senior Member
 
Joined: Nov 2014
Posts: 766
Likes: 5
From: Los Angeles, CA
Year: 1989 Limited
Model: Cherokee(XJ)
Engine: I-6 4.0L AMC Renix
Default

I'm just gonna pitch a rather dumb idea that could work. How about 2 different intakes, 1 hot air, and one cold air, and you manually switch from the hot air to cold air intake by a switch once you reach operating temp. Seems crazy but could it work? Especially for people in really cold weather.
Reply
Old Dec 31, 2015 | 04:57 AM
  #1114  
Basslicks's Avatar
No, I don't lick fish.
Premium Member
15 Year Member
Liked
 
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by LiamLikeNeeson
I'm just gonna pitch a rather dumb idea that could work. How about 2 different intakes, 1 hot air, and one cold air, and you manually switch from the hot air to cold air intake by a switch once you reach operating temp. Seems crazy but could it work? Especially for people in really cold weather.
That would be entirely too much work which wouldn't yield the amount of results you'd be looking for in such a mod.

Last edited by Basslicks; Dec 31, 2015 at 04:59 AM.
Reply
Old Dec 31, 2015 | 05:29 AM
  #1115  
oldskool13's Avatar
Junior Member
 
Joined: Dec 2015
Posts: 47
Likes: 1
From: Great White North
Year: 1991
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Basslicks
Just playin' devils advocate here... but after a quick little 5 minute or so search of average temps in wisconsin from 1971-2000 it appears that the lowest average in the northernmost portion of the state is about -30*f

http://www.aos.wisc.edu/~sco/seasons...EXT-71-00c.gif

Not saying that's a whole ton better, but I was a little surprised when you through the figure of -50 out there.

In response to that, he may have slightly harder time getting it started, but once it's running how would it really be that much different than that of the factory airbox? Wouldn't it be just as affected by underhood temps as an airbox with a filter in it?

Not saying it's the most ideal setup, but I just don't see it being detrimental.
In order to get an average of -30, there has to be a few days of -50...lol
I know it's not ideal. But it was free, took me 10 minutes, and is less restrictive. I'm still drawing up my actual setup in autoCAD, which will be a true cold air setup. It will get fabbed up in the spring.
Reply
Old Jan 1, 2016 | 01:13 AM
  #1116  
Basslicks's Avatar
No, I don't lick fish.
Premium Member
15 Year Member
Liked
 
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by oldskool13
In order to get an average of -30, there has to be a few days of -50...lol
I know it's not ideal. But it was free, took me 10 minutes, and is less restrictive. I'm still drawing up my actual setup in autoCAD, which will be a true cold air setup. It will get fabbed up in the spring.
lol.. well, that's true. Man, I didn't realize it got that cold in the lower 49!
Reply
Old Jan 1, 2016 | 06:40 AM
  #1117  
oldskool13's Avatar
Junior Member
 
Joined: Dec 2015
Posts: 47
Likes: 1
From: Great White North
Year: 1991
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Basslicks
lol.. well, that's true. Man, I didn't realize it got that cold in the lower 49!
This has actually been a super mild winter for us. Only 12 inches of snow so far, and has yet to drop below zero. I'm loving it!
Reply
Old Jan 1, 2016 | 02:03 PM
  #1118  
ElMartillo's Avatar
Senior Member
10 Year Member
Liked
 
Joined: Dec 2015
Posts: 935
Likes: 49
From: Nationwide, USA
Year: 89
Model: Cherokee
Engine: Renix 4.0
Default

Originally Posted by Basslicks
...In response to that, he may have slightly harder time getting it started...
Why would it be more difficult to start? The stock hot air intake wouldn't be effective until the motor has run for a bit, so removing it shouldn't make any difference when the motor is cold.
Reply
Old Jan 1, 2016 | 07:29 PM
  #1119  
oldskool13's Avatar
Junior Member
 
Joined: Dec 2015
Posts: 47
Likes: 1
From: Great White North
Year: 1991
Model: Cherokee
Engine: 4.0
Default

MSD 6AL make much of a difference on these motors? I have one laying around...
Reply
Old Jan 10, 2016 | 01:41 PM
  #1120  
unidentifiedbomb's Avatar
CF Veteran
 
Joined: May 2011
Posts: 6,098
Likes: 250
From: DE
Year: 1988
Model: Cherokee
Engine: I6 4.0
Default

Custom hood latch handle.

Name:  ForumRunner_20160110_144130.png
Views: 1722
Size:  457.3 KB
Reply
Old Jan 10, 2016 | 04:48 PM
  #1121  
DJKnightmare's Avatar
CF Veteran
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2008
Posts: 1,228
Likes: 30
From: Penns Grove, NJ
Year: 1995
Model: Cherokee (XJ)
Engine: 2.5 4 cyl
Default

unidentifiedbomb, you don't like hood pins?
Reply
Old Jan 10, 2016 | 09:25 PM
  #1122  
unidentifiedbomb's Avatar
CF Veteran
 
Joined: May 2011
Posts: 6,098
Likes: 250
From: DE
Year: 1988
Model: Cherokee
Engine: I6 4.0
Default

Originally Posted by DJKnightmare
unidentifiedbomb, you don't like hood pins?

Reply
Old Jan 11, 2016 | 08:44 AM
  #1123  
DJKnightmare's Avatar
CF Veteran
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2008
Posts: 1,228
Likes: 30
From: Penns Grove, NJ
Year: 1995
Model: Cherokee (XJ)
Engine: 2.5 4 cyl
Default

^Hahahahahaha! (not the bronchitis)
Reply
Old Jan 12, 2016 | 03:58 AM
  #1124  
Basslicks's Avatar
No, I don't lick fish.
Premium Member
15 Year Member
Liked
 
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by ElMartillo
Why would it be more difficult to start? The stock hot air intake wouldn't be effective until the motor has run for a bit, so removing it shouldn't make any difference when the motor is cold.
True. Honestly I was just spitballing man... my thing is, I don't know why people get so hung up on the whole intake thing. Yes, it has its drawbacks, but there are those who run them and have seen results. I have one on mine, it's a K&N and it was in it when I bought it. Would I shell out for one? No. Would I make my own? Yes, but I would run it into the cowl myself - namely because there is a lot of water here in florida and while I've been fortunate enough not to sink my intake filter in it YET, I don't want to take that chance.

I didn't think about the intake being a moot point before the motor is warmed up, but that itself is a moot point as I was trying to play advocate for the poster about his intake to begin with.


I will say that these work better when you can completely isolate the air going into the filter. Either through the cowl or by making your own box which draws outside air in as opposed to under hood air.
Reply
Old Jan 12, 2016 | 09:43 AM
  #1125  
oldskool13's Avatar
Junior Member
 
Joined: Dec 2015
Posts: 47
Likes: 1
From: Great White North
Year: 1991
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Basslicks
True. Honestly I was just spitballing man... my thing is, I don't know why people get so hung up on the whole intake thing. Yes, it has its drawbacks, but there are those who run them and have seen results. I have one on mine, it's a K&N and it was in it when I bought it. Would I shell out for one? No. Would I make my own? Yes, but I would run it into the cowl myself - namely because there is a lot of water here in florida and while I've been fortunate enough not to sink my intake filter in it YET, I don't want to take that chance.

I didn't think about the intake being a moot point before the motor is warmed up, but that itself is a moot point as I was trying to play advocate for the poster about his intake to begin with.


I will say that these work better when you can completely isolate the air going into the filter. Either through the cowl or by making your own box which draws outside air in as opposed to under hood air.
Keep in mind, this is temporary. I had the parts laying around, and it really can't be any worse than the stock intake. If it gains me a little extra MPG's, awesome. If not, I've only wasted 10 minutes and zero dollars. This spring there will be a custom box made that pulls in cowl air.
Reply



All times are GMT -5. The time now is 06:21 PM.