Forced Induction Superchargers | Turbochargers | Intercoolers

Does anyone let their radiator fan(s) run 24/7

Thread Tools
 
Search this Thread
 
Old 10-13-2015, 09:16 PM
  #1  
11 Second Club
Thread Starter
iTrader: (2)
 
Jc803's Avatar
 
Join Date: Dec 2012
Location: Lexington, SC
Posts: 664
Likes: 0
Received 3 Likes on 3 Posts
Default Does anyone let their radiator fan(s) run 24/7

About to rewire the entire car to cut back on wires, fuses, and relays, all while relocating everything under the dash. I noticed that there are 3 relays and two fuses for just the fans. And probably more wiring related to it all.

I'm thinking about just running wiring and fuse directly from a switch to the fans and leaving the fans on at all times while engine is running.

Does anyone else do this or see a problem with it? Will the fan motors overheat? I understand the motors wont last as long running all the time but are we talking a life span of 3 months or 8 years or more.
Old 10-14-2015, 12:11 AM
  #2  
10 Second Club
iTrader: (22)
 
SPRAYED 01's Avatar
 
Join Date: Mar 2006
Location: Northwest side of Chicago
Posts: 3,677
Likes: 0
Received 2 Likes on 2 Posts

Default

I dont see an issue with it especially if its a race car or something you dont drive often. Once my fans come on they are pretty much on all the time in the summer.
Old 10-14-2015, 05:10 AM
  #3  
TECH Enthusiast
 
95bowtie's Avatar
 
Join Date: Mar 2010
Posts: 519
Likes: 0
Received 2 Likes on 2 Posts
Default

I have done it for 3 years now in my street car/summer daily. No issues what so ever. May be a little hard on the fan when you take a 2-3 hr ride but it is a 16" $25 china fan so not too worried about it lol.

This year I was having issues bleeding the air out of the coolant system and I removed my 160 t-stat. motor runs at 200* always even in stop and go traffic
Old 10-14-2015, 07:01 AM
  #4  
TECH Veteran
iTrader: (7)
 
forcd ind's Avatar
 
Join Date: Sep 2007
Location: woodbine, md
Posts: 4,138
Received 241 Likes on 168 Posts

Default

In an ideal world the air over the radiator when your moving should keep the water at normal temp, no fans
Most newer cars turn the fans on all the time when the AC is on
Not having the fans on while driving is free HP-they draw a lot of amps, I can feel the diff-I see no reason to have them on if the cooling system can work with no fans and your moving.
Your working the fans for no reason, and the alt.
Old 10-14-2015, 07:12 AM
  #5  
LS1Tech Sponsor
iTrader: (10)
 
hellbents10's Avatar
 
Join Date: Mar 2004
Location: Spring Lake, MI
Posts: 4,439
Likes: 0
Received 3 Likes on 3 Posts

Default

I like to shut them down at speed as there is no reason to have them on.
Old 10-15-2015, 09:07 PM
  #6  
11 Second Club
Thread Starter
iTrader: (2)
 
Jc803's Avatar
 
Join Date: Dec 2012
Location: Lexington, SC
Posts: 664
Likes: 0
Received 3 Likes on 3 Posts
Default

SPRAYED 01 and 95 bowtie, good to hear, that sounds great, thanks.

forcd ind, ideally I'd like to have them turn on and off depending on temps like from the factory, but if it comes down to that luxury or cutting out a lot of wiring, fuses, and relays then the simple wiring wins for me.

hellbents10, totally agree. I have mine on a switch and I leave them running in the staging lanes, burnout, and stage, then turn them off.

Since there doesnt seem to be a problem with running them all the time I'm going to do that. Thanks guys
Old 10-16-2015, 09:27 AM
  #7  
12 Second Club
iTrader: (13)
 
93camaro_zzz's Avatar
 
Join Date: Nov 2005
Location: San Diego, Ca.
Posts: 2,211
Likes: 0
Received 2 Likes on 2 Posts

Default

I run my e-fans off of a on/off switch. My car is mostly a drag car though, and I like to run the engine cold. But it works fine for me.
Old 10-17-2015, 08:51 AM
  #8  
8 Second Club
iTrader: (5)
 
rotary1307cc's Avatar
 
Join Date: Jan 2007
Posts: 2,790
Likes: 0
Received 123 Likes on 92 Posts

Default

Lol how is it saving **** for wiring? One trigger wire for relay... Wow
Old 10-17-2015, 11:00 AM
  #9  
11 Second Club
Thread Starter
iTrader: (2)
 
Jc803's Avatar
 
Join Date: Dec 2012
Location: Lexington, SC
Posts: 664
Likes: 0
Received 3 Likes on 3 Posts
Default

Its not just that. Its a bunch of wires that adds up here and there. Like the theory that loosing 5lbs in weight wont do anything, but do that 20 times and it adds up.
Old 10-17-2015, 11:48 AM
  #10  
9 Second Club
 
stevieturbo's Avatar
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 13,616
Received 180 Likes on 155 Posts

Default

There really is no sensible reason at all to have the fan running all the time...to the extent of saying its dumb.
Old 10-17-2015, 12:25 PM
  #11  
TECH Senior Member
iTrader: (7)
 
Project GatTagO's Avatar
 
Join Date: Mar 2003
Location: The City of Fountains
Posts: 10,210
Received 1,490 Likes on 930 Posts
LS1Tech 20 Year Member
Default

Originally Posted by stevieturbo
There really is no sensible reason at all to have the fan running all the time...to the extent of saying its dumb.
^^^^ This....

Andrew
Old 10-18-2015, 09:33 PM
  #12  
11 Second Club
Thread Starter
iTrader: (2)
 
Jc803's Avatar
 
Join Date: Dec 2012
Location: Lexington, SC
Posts: 664
Likes: 0
Received 3 Likes on 3 Posts
Default

I'm not saying I want to wire it to automatically come on and stay on literally all the time. I'm saying just put it on a switch. Have it off on the interstates, highways, and making passes at the track, on in stop and go traffic or staging lanes. Seems simple enough. Forcd ind had a good point, using the AC makes the fans stay on all the time. I'd be using the fans less than that.

I figure if I've given up the luxury of power steering, no AC, turn signals and high beems on a switch (no multi function switch), and so on, then I can handle turning the fan on and off on a street/strip car that sees 4k miles per year.

Last edited by Jc803; 10-18-2015 at 11:19 PM.
Old 10-18-2015, 10:46 PM
  #13  
Launching!
 
mightybird's Avatar
 
Join Date: Dec 2005
Location: fortwayne indiana
Posts: 295
Likes: 0
Received 0 Likes on 0 Posts

Default

I wired mine into the factory harness and just now they come on at 100 degrees and stay on all the time seems to be doing fine !



Quick Reply: Does anyone let their radiator fan(s) run 24/7



All times are GMT -5. The time now is 07:22 AM.