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Old 06-01-2008, 03:56 PM   #1
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Electric fan coversion

Well I finally got around to putting my electric fan in today.I got the 2700CFM fan,temp switch and relay/wiring kit from Ebay for less than $90 and it works great.It was running around 210-215 before now it runs around 185-195.I choose to go ahead and cut the shroud down and use the top section because of the overflow bottle mount.I will make a mount and do away with the shround completely sometime.I had to make a T fitting for the temp switch and guage sensor to go in so it is a little bulky for now but I will try to find a brass T fitting to do away with the big one that is in it now.But for now it is (Cool)
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Old 06-01-2008, 03:59 PM   #2
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advantages?

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Old 06-01-2008, 04:09 PM   #3
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well it means less strain on the engine and better mpg, and if it is a two speed fan then when you got through streams you can turn it down so it doesn't throw water everywhere

and if you live in the desert or somewhere hot it is good to be able to keep the temp really low, 185, up here i like mine right at 210 when its fricken 0 degrees out!
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Old 06-01-2008, 04:19 PM   #4
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I would not have cut anything out of the fan shroud, you just lost some of your cooling system's efficiency. Without the fan shroud fully surrounding the fan, the fan can't pull air through the radiator nearly as well. I would have figured out some other solution to the overflow bottle's mounting issue.
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Old 06-01-2008, 04:53 PM   #5
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The factory fan shroud is useless with an electric fan.The factory fan uses the shroud just because the fan is attached to the water pump there for it is harder to pull air through the radiator because of the distance so the shround just fills in the gap between the radiator and the clutch fan.This fan is right up against the radiator and does not need the shroud.The only loss of air circulation is around the outside of the electric fan and the factory shroud does nothing for that either but they do make a filler shroud for the electric fan but like I said it is running 20-25 degrees cooler anyway I didn't loss anything by cutting the shroud.Besides It was an extra one I had anyway Advantages are around 4hp gain,cooler temps and better MPG.
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Old 06-01-2008, 04:54 PM   #6
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Well I finally got around to putting my electric fan in today.I got the 2700CFM fan,temp switch and relay/wiring kit from Ebay for less than $90 and it works great.It was running around 210-215 before now it runs around 185-195.I choose to go ahead and cut the shroud down and use the top section because of the overflow bottle mount.I will make a mount and do away with the shround completely sometime.I had to make a T fitting for the temp switch and guage sensor to go in so it is a little bulky for now but I will try to find a brass T fitting to do away with the big one that is in it now.But for now it is (Cool)
any links or more info on the fan and relay/wiring kit?
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Old 06-01-2008, 05:20 PM   #7
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Yeah I researched it for a few weeks before I ever bought the stuff to do it.Here ya go!!!Just look around for a little while and you will find a good deal.I paid $56 shipped for my fan and $29 for the temp switch,relay and wiring kit.
http://www.parksoffroad.com/johnsjee.../flexalite.htm
http://www.jegs.com/p/Flex-A-Lite/751522/10002/-1
This is a Kia Sportage but same basics http://www.4x4wire.com/forums/showfl...fpart=all&vc=1
here is one on Ebay http://cgi.ebay.com/ebaymotors/Chevy...s/17800_01.htm
http://search.ebay.com/electric-fan-...sooZ2QQfsopZ32
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Old 06-02-2008, 01:02 AM   #8
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That link for the one on Ebay will not work I just looked at it again and it is 5.5" thick.You need to look for one that is no more than 4.5" thick at the motor and at least 2400 CFM the one I choose is only 3.5" thick and 2700 CFM After seeing how well this thing cools I would not worry a bit about using a 2400CFM rated fan.And as far as cutting the shroud or worrying about getting one with a shroud unless you live in a place that daily temps get to be above 100 in the shade I would not sweat it.You can feel the slight HP gain and the lack of that loud turbine noise the clutch fan made when the clutch was in full lock is gone and it sounds totally different than it did before.I would have to say this is one of the better inexpensive mods I have done so far.
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Old 06-02-2008, 02:01 AM   #9
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Old 06-02-2008, 05:05 PM   #10
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I wanna do this mod but lazy to research the how to (no time).. and finding the right parts..
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Old 06-02-2008, 05:19 PM   #11
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I wanna do this mod but lazy to research the how to (no time).. and finding the right parts..
No excuses now, It's all been done for you!
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Old 06-02-2008, 06:28 PM   #12
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Sherman, do you say to completely remove the stock shroud? From looking at your pics, up there it looks like the fan you got is a bit small for the stock shroud. Any more pics of how its mounted?
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Old 06-02-2008, 06:45 PM   #13
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Not really the fan is a 16" I just choose to lower it to rest on the bottom of the radiator lip.It mounts with the plastic things like zip ties.Your radiator cores run up and down so the mounting straps slide through the radiator and pulls the fan up against the radiator.I know I was skeptical at first too that is why I let the fan rest on the lower lip but after putting the first one in I knew it would be ok.They have been putting these fans in race cars with $300-$400 radiators for a long timeHowever I did line the mounting surface of the fan with a felt type tape that I had so it doesn't rub on the rad.The felt gives it a little cushioning between the fan a rad.The factory shroud will be gone as soon as I get my stainless overflow jug.I ordered a stainless 3"x 10" overflow bottle to replace the factory on.It will mount directly to the radiator were the factory shroud bolted before.I will take a few more pics at that time.Once the shroud is gone you will be able to see the fan a little better.
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Old 06-02-2008, 07:25 PM   #14
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so you're gonna completely remove the shroud and you'll just run the fan in the middle of the radiator with out a shroud? Just couple of brackets that go to where the stock shroud mounts to?
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Old 06-02-2008, 09:23 PM   #15
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Yeah the factory shroud only remains to hold the overflow bottle right now.Once I get the new bottle the whole shroud will be gone.I only have half of the shroud left after I cut it down and even before I put the shroud back in I started it and was watching to make sure everything work like it should the temp only got to 190 at the same time the fan kicked on.I let it sit there and run and it remained around 185-190.I can not see a reason for the shroud to be there once I get the overflow that will bolt up to were the shroud does now.If you look at the radiator it has two up right steel brackets that hold it in on each side.That is also what holds the shroud but the overflow I am getting will bolt up to that in the same place the shroud bolts are on the driver side.So yeah the shroud will be gone completely.I drove it a little more today and you really can feel a noticeable change in the acceleration.I would not have believed that a clutch fan or even a straight fan would hold back an engine that much.
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Old 06-02-2008, 09:29 PM   #16
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i hate you people. making me spend more. I'm ordering a thermostat now ggrrr.
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Old 06-02-2008, 09:32 PM   #17
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huuhhh Don't hate me cause im beautiful. Why what happened?
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Old 06-02-2008, 09:43 PM   #18
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hehe i'm searching for a fan and a thermostat now

How does 16" fan and 210 degrees thermostat look?
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Old 06-02-2008, 10:12 PM   #19
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as for that adjustable fan switch thingy from flex a lite, what else will i need?

http://www.jegs.com/p/Flex-A-Lite/751522/10002/-1

any relays or anything else to do the (entire) wiring?
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Old 06-02-2008, 10:12 PM   #20
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Oh I thought you were saying that we jinxed ya by talking about fans and your overheated or something.I got mine from ebay.Like I said the fan can be up to 4.5" but it is tight I would try to stay around 3.5-4" and get the 2400-2700 CFM.Now they have the fan and relay,temp switch combo but if you watch for a little while you can find them cheaper by buying separate.
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Old 06-02-2008, 10:17 PM   #21
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That is just the adjustable temp switch and not a good one.That has the probe that goes in were the upper radiator hose goes then you have to put that tape like stuff they send over the copper wire that leads out of the rad then put the hose back over all that and the clamp.It will more than likely leak.I looked at that one and didn't rust that setup.Also you would still need the relay and wiring for the fan plus the fan.Hold on I will check and see if they have any more and I will send a link.
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Old 06-02-2008, 10:22 PM   #22
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Nope i just want to get some extra power and hopefully improve mpg.


I got my eye on this thermostat, i know how to wire the relays and they cost 7 bucks at radio shack so..

what do you guys think? Instead of the block i'll put it on the line that takes the hot coolant to the radiator.
http://cgi.ebay.com/ebaymotors/210-Degree-Electric-Fan-Thermostat-Temperature-Switch_W0QQitemZ250191340542QQcmdZViewItem?_trksid =p3286.m20.l1116
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Old 06-02-2008, 10:24 PM   #23
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Here is one but I don't see the temp switch http://cgi.ebay.com/ebaymotors/Fan-R...m290235152220& Here is a good deal on a fan.2500 CFM and only 2.9"s http://cgi.ebay.com/ebaymotors/16-IN...QQcmdZViewItem here is just like the relay /switch kit http://cgi.ebay.com/ebaymotors/FAN-C...QQcmdZViewItem
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Old 06-02-2008, 10:25 PM   #24
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This is my 3rd upgrade in line now. lol
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Old 06-02-2008, 10:28 PM   #25
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i got one of these
Procomp 16" 2750 CFM Radiator Cooling Fan street rod
http://cgi.ebay.com/ebaymotors/_Car-Truck-Parts-Accessories__Procomp-16-2750-CFM-Radiator-Cooling-Fan-street-rod_W0QQitemZ230256659513QQadnZCarQ20Q26Q20TruckQ2 0PartsQ20Q26Q20AccessoriesQQadiZ2865QQcmdZViewItem ?hash=item230256659513&


I'm planning on removing the shroud and holding the fan across the radiator with 2 long pieces of metal.

Let me take out the crayons
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Old 06-02-2008, 10:28 PM   #26
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What line???Are you talking about putting some kind of T in the upper rad hose???
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Old 06-02-2008, 10:31 PM   #27
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That looks just like the fan I have but mine is chrome.That temp switch is going to be right at $25 with shipping the whole kit here is only $32 http://cgi.ebay.com/ebaymotors/FAN-C...QQcmdZViewItem
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Old 06-02-2008, 10:51 PM   #28
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Yes with a T



That kit was for 185 degrees, i dont want it that low, i want it to be at about 210 as that seems to be my normal operating temp.
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Old 06-02-2008, 11:36 PM   #29
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I just got one of these too. Any one has any ideas where i can mount the thermostat without a T?

http://cgi.ebay.com/ebaymotors/_Car-...3756.m20.l1116
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Old 06-03-2008, 05:45 PM   #30
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Yeah I was trying to think of another way also but had to go with the bulky looking water pipe fittings for mine.On the newer Cherokees there is a temp sensor in the intake maifold under the throttle body top cover and there is a threaded plug there on ours also but that will not give you the water temp,only manifold air temp.Soooo good luck with that

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