87 Xj 2.5l electric fan help
Thread Starter
Junior Member
Joined: Mar 2017
Posts: 72
Likes: 0
From: Bakersfield, CA
Model: Cherokee
Engine: 2.5l
87 Xj 2.5l electric fan help
So there's a few things I need help
1. I don't know what the air output on my mechanical fan is, so I don't know the minimum I'd need in an electric fan?
2. I have seen many advertised specifically for the 4.0 as far as the fitting goes would there be a difference between an 87 2.5 and 87 4.0?
3. A lot of what I read says their fans are coming on 215-220, I would prefer the fan came on sooner. How would I go about making it either kick on and off as the engine comes on and off or have it turn on at 190-200? Which is the normal operating temp of my jeep currently.
The purpose for the fan is the added hp and mpg I've heard about, I don't plan on doing any water crossings and I plan on mild-moderate off-roading this is my DD and having overheated the engine once and lost my savings account regretfulling rebuilding it (3,500$) instead of doing an engine swap I'm rather afraid of any temp over 210
4 any recommendations on fans? That aren't the 500$ triple fan setups, preferably a very cost effective one for under a few hundred
1. I don't know what the air output on my mechanical fan is, so I don't know the minimum I'd need in an electric fan?
2. I have seen many advertised specifically for the 4.0 as far as the fitting goes would there be a difference between an 87 2.5 and 87 4.0?
3. A lot of what I read says their fans are coming on 215-220, I would prefer the fan came on sooner. How would I go about making it either kick on and off as the engine comes on and off or have it turn on at 190-200? Which is the normal operating temp of my jeep currently.
The purpose for the fan is the added hp and mpg I've heard about, I don't plan on doing any water crossings and I plan on mild-moderate off-roading this is my DD and having overheated the engine once and lost my savings account regretfulling rebuilding it (3,500$) instead of doing an engine swap I'm rather afraid of any temp over 210
4 any recommendations on fans? That aren't the 500$ triple fan setups, preferably a very cost effective one for under a few hundred
Last edited by Ethan94; Jun 6, 2017 at 01:27 PM.
CF Veteran
Joined: Oct 2013
Posts: 7,378
Likes: 2
From: Miami, fl
Year: 1998
Model: Cherokee
Engine: 4.0
No electric fans work better than the factory mechanical fan...
To do the right job, you would need a spal temp controller so the fans can cut on to what temps you want them to...but any decent/good one would cost $250+ plus the fans and whatever radiator set up you want...
To do the right job, you would need a spal temp controller so the fans can cut on to what temps you want them to...but any decent/good one would cost $250+ plus the fans and whatever radiator set up you want...
Newbie
Joined: Jun 2017
Posts: 21
Likes: 0
Model: Cherokee
i am doing an efan swap in my 4.0 xj. i got a controller which comes on at 210 and off at 180. The fan i am using i got off of amazon, its 12" and moves 1700cfm. From my research, you need 2000cfm to keep it cool and 3000cfm is the preferred number. with the factory efan along side of it i should be close to 2700. There are several higher cost fans which can do that kind of cfm but i am cheap.
fan - 30.00
fan controller - 18.00
thermostat housing - 9.00 (aluminum housing which splices into the upper rad. hose)
connectors, heat shrink & misc. - 12.00
Total cost - $69.00
Everything bought off amazon and not a single part had less than a 4 star rating with a minimum of 50 reviews so I expect good performance and longevity. It all just arrived today so I will let you know!
fan - 30.00
fan controller - 18.00
thermostat housing - 9.00 (aluminum housing which splices into the upper rad. hose)
connectors, heat shrink & misc. - 12.00
Total cost - $69.00
Everything bought off amazon and not a single part had less than a 4 star rating with a minimum of 50 reviews so I expect good performance and longevity. It all just arrived today so I will let you know!
Last edited by Oceanairbrush; Jun 16, 2017 at 10:17 PM.
