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General Forums => The Mess Hall => Topic started by: jwrape on March 15, 2006, 02:38:10 PM
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I finally got around to wiring and mounting my 16" electric fan I got on Ebay for $15. Well I took off the clutch fan and MAN was that thing heavy.
I installed the e-Fan and test drove the Jeep. MAN! there is a noticable difference. It's not a kick in the pants different but it is a definate difference in accelleration.
1) - The motor revs MUCH fast, especially over 3k rpms. The motor in 1st gear flies from 3krpms to 5krpms quick!
2) The motor feels like it doesn't have the drag that it had on it before.
3) Before the upgrade, I could close my eyes and ride in the Jeep and not know that I was accellerating. Now if I was to close my eyes I can actually feel some G-force pulling through the gears.
It is definatley a nice upgrade.
I would say that the two much have upgrades for the 2.5L is the 4.0 TB and the electric fan. Both add good low end and smoother acceleration.
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What fan did you use?
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What fan did you use?
I don't know. I can't read spanish but here is the EBay ad
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=8033906286&category=33600
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Looks like a universal flex-a-lite.
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Looks like a universal flex-a-lite.
Yea, I can see that. It works good. Sits at the same temp as the clutch fan.
Gonna get a cooler temp thermostat though. I thought the electric fan might bring the temp down a couple degrees but it hasn't so I will be replacing the thermostat to 160 degree
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This is excellent knews. I found a ford taurus in the junk yard, had the eletric fan just sitting on the hood. Apparently someone had removed it to get the radiator out and didn't need the fan. I checked the part number, caled my buddy Swampy up to confirm, and it was just the one I wanted. Two speed electric fan :twisted: I've got a wiring relay and temp switch kit from jegs, and I plan to run the high speed in place of the existing electric condensor fan. I can't wait to get that mechanical fan off!
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This is excellent knews. I found a ford taurus in the junk yard, had the eletric fan just sitting on the hood. Apparently someone had removed it to get the radiator out and didn't need the fan. I checked the part number, caled my buddy Swampy up to confirm, and it was just the one I wanted. Two speed electric fan :twisted: I've got a wiring relay and temp switch kit from jegs, and I plan to run the high speed in place of the existing electric condensor fan. I can't wait to get that mechanical fan off!
I just bought a $10 JPC wiring kit for wiring addition fog lights and wired it up with a on/off switch and then wired the accessory power lead to the ignition where even if the switch is in the ON position that the fan won't come on until the ignition is in the running position.
The JPC kit came with all the wiring and switch and 30 amp relay. It was perfect for the install and was cheap. It was also the same wiring kit I used on my AUX. lights on my roof rack.
It works perfectly. The Jeep warms up as normal and gets to normal operating temp and stays there.
I wired the switch inline so that if I go through a river or something and submerge the front end that I can turn off the power before I hit the water and not worry about frying a fuse or the fan. :D
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I mounted a switch on the dash, I'm going to take an ignition hot line into it, so that it will come on with the engine, but I was worried about the engine getting up to temp since this fan is reputed to move a lot of air. Thus I got the temp swtich kit. Comes on at 180, off at 200. I need to get another relay to run off of my condensor fan lead, I don't know if it is enough to handle the amperage of the high speed on the taurus fan. Next time I get a day off, I'll get it all installed and post up :wink:
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You really want to run a high amp relay on that Taurus fan. If you run a regular 30a, you risk the wiring heating up then shorting out and possibly catching fire.
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I mounted a switch on the dash, I'm going to take an ignition hot line into it, so that it will come on with the engine, but I was worried about the engine getting up to temp since this fan is reputed to move a lot of air. Thus I got the temp swtich kit. Comes on at 180, off at 200. I need to get another relay to run off of my condensor fan lead, I don't know if it is enough to handle the amperage of the high speed on the taurus fan. Next time I get a day off, I'll get it all installed and post up :wink:
I have installed a few electric fans on different cars. The only one that I have had a issue with it getting up to temp is my 5.0 Mustang. I installed a 17" Volvo V70 in it and wired it directly to the ignition as well. The only thing is when it's REALLY cold out it takes a little more time to warm up. Usually takes me driving it before it will warm up. If I let it sit idling in the driveway waiting for it to warm up it will take longer. BUT to its defense, that Volvo fan pushes a ton of cfm's.
But it still gets to temp and on REALLY HOT days stays cooler than the clutch fan.
I think all vehicles should have electric fans.
BUT I will say, I am carrying my clutch fan in the back of the Jeep, especially on the trail in case the electric gives out.
My Mustang has gone through 3 other electric fans due to fan failure. The 1st fan locked up and burnt the wiring. The 2nd fan lost all but 4 fins off the fan going down the road. I guess the plastic just dried out and broke. The 3rd fan burnt up and now the Volvo fan is the best I have had.
But to the others defense, I bought all of them for under $35 shipped. :D
I don't beleive in paying a lot for them.
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This is a great topic. I'm sure it's something I will seriously look into.
Inexpensive and increase engine performance... Who can complain?
Two things hit me as I was reading...
#1 jwrape stating that he carries his factory fan & clutch along with him on the trail. Great thinking!! Insurance at it's greatest... Take it with you, you'll be you'll never need it :)
#2 jwrape stating:
3) Before the upgrade, I could close my eyes and ride in the Jeep and not know that I was accellerating. Now if I was to close my eyes I can actually feel some G-force pulling through the gears.
Dude... I'll bet if you open your eyes, you can go even faster ;) Sorry man, but I laughed the first time I read that. And I did understand what you meant.
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great thread..I'll have to do some research
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nice to hear about that volvo fan i work at a aftermarket volvo dealer and i just pulled a fan off one and was going to hook it up to my 95 yj and see how it would work... ive worked there over 13 years and have NEVER replaced one so they are definatly reliable ...
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any ideas on how many CFM you'll need on a continuous running electric fan to have sufficiant cooling in summer? I have a 2000cfm fan left over from another project I'm thinking about using. How much less effective do you think a fan would be mounted right to the radiator without a shroud? As soon as it warms up here I'm going to try this, I can almost drive up the hills near my house without downshifting........ just 5 more hp! haha
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BUT I will say, I am carrying my clutch fan in the back of the Jeep, especially on the trail in case the electric gives out.
My Mustang has gone through 3 other electric fans due to fan failure.
I don't think you need to do that. I have my fan wired into a switch and I turn it on and off manualy. I only have it turned on about half the time. I turn it off if I need a power boost for smething. It is usally running when the going gets slow. If I am acually moving faster than 2mph then I realy don't need it. Basicly what I am saying is if it breaks then just make shure you keep moving while you make it back to the trail head. Or just keep one in the tow rig like I do.
Well on secong thought, most of you guys are probaly driving your rigs to the trail, so If you get stuck in traffic you are screwed.
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You want to be pushing around 1600CFM or more, I believe. Most OEM fans will do that.
I think it's funny that someone would want to carry their boat anchor as a spare. If you want a backup get a flex fan, much lighter.
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think it matters if the shroud comes out?
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The fan needs a shroud. If it has one built into it then you don't need it. If it doesn't have one, then you'll want to make one. The shroud focuses the fan and makes it more efficent.
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That is one thing I like about my Mini Cooper fan. It has a shroud built in and it is only about 3" thick. I was able to get rid of that huge shroud.
Now I can stand on my front axle and work on my engine. I think I could fit a spare engine in that space. 8)
(http://img.photobucket.com/albums/v469/trailerrails/electricfan002.jpg)
Edit: Sorry for the huge pic.
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Looks nice...
Wanna send me one! :lol:
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really!! Group buy on the Cooper fans??
Looks great in there!!
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Let me talk to my guy and see if I can get my hands on some.
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any ideas on how many CFM you'll need on a continuous running electric fan to have sufficiant cooling in summer? I have a 2000cfm fan left over from another project I'm thinking about using. How much less effective do you think a fan would be mounted right to the radiator without a shroud? As soon as it warms up here I'm going to try this, I can almost drive up the hills near my house without downshifting........ just 5 more hp! haha
2000cfm's would be plenty. The little 4 bangers don't make a lot of heat. I installed a 160 degree thermostat thinking it would run about 180 degree after it warmed up, it actually runs at 150 degrees. So with the lower thermostat and the electric fan it barely gets warm. I am planning on changing out to a 180 degree thermostat just so my heater will still work. But I definately recommend running a lower temp thermostat than factory because every Jeep I have seen has burnt oil deposits built up under the valve cover from over heating. I know my YJ 2.5L ran at 212 degrees before I changed the thermostat out for a new one.
I am only running a low speed 16" fan on mine and it does great. A 2000 cfm fan might need a temp switch on it to not be too much for that little motor.
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I thought the electric fan might bring the temp down a couple degrees but it hasn't so I will be replacing the thermostat to 160 degree
You may have isuse if you go with the 160. the computer reads it as not up to operating temp and can make it run like crap. buddy tried it in his 4.0 and had issuse.
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Typically, unless your engine is overheating swapping out the thermostat will not lower the operating temp. Once the thermostat opens it's open. Adding a lower temp thermostat would mean that it might take longer for the engine to warm up. What some people do this for is to trick the computer to think it's running cooler then it actually is which richen's the fuel mixture for a while.
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Well I ran all the way home(38 miles) in slow and go traffic with the fan turned off to see how fast it would get hot and the temp never got above 175 degrees, even when i would come to a stop in traffic. That darn little motor doesn't run hot at all with the 160 degree thermostat. It doesn't seem to be running rich either. No richer than normal anyways. I do think I will be putting the 180 degree stat in it later though because my heater barely gets warm now. LOL! But as for it running bad, it runs really nice cooler. Go figure. :D
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what is optimal temp for out 4bangers
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what is optimal temp for out 4bangers
Good question. Personally I don't like how hot mine was running when I bought it. 212 seems a little high to me. And besides that I have A LOT of burnt oil build up under the valve cover that indicates high temps before. I think it should run around 180 or 190... The stock thermostat is 195 but that put me at the 212.
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The stock thermostat is a 195. The engine should settle anywhere from 197-210. EFI like to run a bit warm.
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Ok, so I just found my electric fan I yanked from a honda 4banger before I sent her to her final resting place and decided it looked like it would fit my jeep pretty nice. It did, almost too nice! It was kinda sceary that a part made for a jap ride fits so nicely where that plastic megaphone like fan shrowd used to be. I wired the fan up with a switch powered by an "ignition on" hot wire. This controls a automotive grade single reed relay. That runs that fan as long as I please with out any heat from the wires or relay. So no worries there. The most interesting thing is what I noticed when I took it for a test drive. I didn't notice any power increase, and the off-idle wind-up is only just barely noticably quicker, but what I noticed and find rather interesting is that fact that I now run 5 to 10 degrees COOLER on the highway than I used to!? My only guess is that the damn stock fan shrowd was funneling so much air down to such a small diameter (The stock clutch fan is defiantely the smallest I've ever seen!) which must be causing a slight restriction of airflow through the radiator at higher speeds (60+). At city speeds, the jeep runs at the same temp as it used to... WITH OUT turning the dang fan on?! The ONLY time I have to turn it on at all is if the jeep is going to be idling for an extended period once it is already up to operating temp. I haven't used it more than just to test it out a few times since I put it in. I know that radatior seems a little bit bigger than this 4banger needs, but this is kinda nuts! I'm definately hooking a T-Stat switch for the fan. I will bet this thing will almost NEVER kick on automatically! Well, if any one else has noticed this little observation, speak up!
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Yeah, but, man, it was 77 in LA today and I had the AC on at my place. Michigan, I dunno, what was it 40s and 50s (I'm an east coast guy, originally, so I'd actually be pretty ok with 40-50 myself) ?
If you are in Arizona/Texas/New Mexico when its 100+, you are probably going to want that electric fan in there with the auto thermostat
but, you are lucky that you probably aren't going to really need a fan in the milder weather.
jeez, no power gains though!? :evil: Maybe computer hasn't adjusted for the change or something?
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Here are some fun pics of my fan install from a Honda Accord...(http://i36.photobucket.com/albums/e1/midnightcwby/P3240026.jpg)
(http://i36.photobucket.com/albums/e1/midnightcwby/P3240025.jpg)
(http://i36.photobucket.com/albums/e1/midnightcwby/P3240024.jpg)
(http://i36.photobucket.com/albums/e1/midnightcwby/P3240023.jpg)
(http://i36.photobucket.com/albums/e1/midnightcwby/P3240022.jpg)[/img]
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True, true. It's like 38 here. The only time I'll realy need to turn the darn thing on is like a week in August or something 8)
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That Accord fan is awefully small. What's with that zip-tie? Not te mention that TJ jack bungied to the fender. (If you stop hard, I'd imagine that jack will go flying... into your radiator. :shock:
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Yea, the fan really only needs to run in stopped traffic. Otherwise that little motor doesn't get hot. It's cool thing. I like a self sufficient motor.
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That jack's days ARE numbered. Though I has already helped me re-seat a bead in a pinch 8) I was kinda worried about it smashing into the back of my headlight when I stopped in a hurry, or tilted the nose a lot in the sand pit, but with my special BUNGE retention system, that hasn't been a problem yet :P It's gone as soon as I get a high-lift or ANY other means of lifting a tire a few inches!!
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The zip ties are there for speed! No, actually I just put them on the long spaces between the bolts because the Jap metal was very flimzy and the whole works could flex a bit. After the zip ties every thing is nice and snug.
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That jack's days ARE numbered. Though I has already helped me re-seat a bead in a pinch 8) I was kinda worried about it smashing into the back of my headlight when I stopped in a hurry, or tilted the nose a lot in the sand pit, but with my special BUNGE retention system, that hasn't been a problem yet :P It's gone as soon as I get a high-lift or ANY other means of lifting a tire a few inches!!
Personally, I would keep a stock jack. For fixing a tire or working on the Jeep, a Hi-Lift is dangerous to use. Just use some large hose clamps. And turn it around so the larger end is towards the back.
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hum no gains. the only thing i can think of is that your fan clutch was bad and nevery realy let the fan spin up much, but thats along shot.
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Just realized today that my my clutch it completely gone. Temp guage runs 210, and the fan is hardly spinning at all! :lol:
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i've been running a 16" zirgo 3300cfm fan on my 2.5 for about a month now and have had NO issues with overheating.... it's performed excatly as it is supposed to and my engine bay stays so much cleaner when i dredge deep water crossings since i can actually turn the fan off now :)
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Just realized today that my my clutch it completely gone. Temp guage runs 210, and the fan is hardly spinning at all! :lol:
Well, I've got a spare clutch if anyone wants it.
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Just realized today that my my clutch it completely gone. Temp guage runs 210, and the fan is hardly spinning at all! :lol:
Well, I've got a spare clutch if anyone wants it.
No thanks, I've got the taurus fan ready to go in. Just waiting on some free time :wink:
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so I put in a hayden adjustable fan controller ($20 autozone) to go with my 2200scfm reversable fan ($75 summit) and it all went in very nice and clean. But my temp gauge is on the fritz so I started working on it. After looking at Chilton it appears that the temp sensor in the thermostat housing goes to the ECM and there is what they call "temp sending unit" that goes to the gauge. Are these one in the same or are there actually two different senders in the 91's? I need to get that sucker working so I can set the temp I want my fan to come on at. Funny thing is my heater works really good without that clutch fan running all the time, it's getting warm soon so I need to get my gauge working. Anyone got some info?
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Thought I would add the electric fan kit a buddy helped me fab up. It's a Mopar Fan with a custom made bracket. It is wired on a lighted switch in the jeep here are a few pictures.
(http://i1.tinypic.com/sfeykz.jpg)
Look at all that room now!
(http://i1.tinypic.com/sfeyva.jpg)
we used bushings at each mounting point so there are no vibrations
(http://i1.tinypic.com/sfez3q.jpg)
Shot of the fan
(http://i1.tinypic.com/sfezaf.jpg)
My lighted on/off switch
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Well, I've been running my Honda Accord fan for a bit now and still am happy with the change. No problems yet; it even got warm here for a few days and no change in engine temp was noted. I still find that the only time I need it is when I'm idling for extended periods of time while the engine is at operating temp. I'll probably use it more this summer.
I want to put this thing on a temp switch so I have an "AUTO" position and an "OFF" position with a warning light when it's in the off position. OFF will be nice for splash downs and creek crossings, and the red L.E.D. will warn me to turn it back to AUTO when I'm across.
My question is where the hell do I install the temp switch?! I don't see any extra bungs to remove so I can add a temp switch. I don't want to replace my gauge sender and loose that feature, and the water neck looks pretty busy already, so where the heck do I put this thing? And if anyone already put one in, where did you get it? Thread count/pitch, thread diameter, Bla, bla, bla, ect...?
Thanks! I would like to put this thing on auto-pilot A.S.A.P.!
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ok maybe im just dumb but is there a tutorial on how to do this, the only thing i can wire is stereos and thats after a few trial and errors and a bunch of fuses
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Littleredbeater, The temp sending unit on the thermo housing goes to the ECM, the other temp sending unit for the gage is at the back of the engine near the valve cover, it should have a small 90 degree connector which just pulls off. I just just replaced mine and a new unit was about $6 bucks at Pep Boys. Be careful if you change the thermostat to a 160, the emission control system may stay stuck in the warmup loop if the engine does not get hot enough and your mileage and performance may suffer.