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Old 09-06-2010, 03:46 PM   #1
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Electric Fan

99 TJ 2.5L Automatic
Will converting to an electric fan really give me more HP? I am considering because any little increase to my 4 bangger will help...,, if so which brand do u recommend?

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Old 09-06-2010, 11:07 PM   #2
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I was looking into this too, and for the 4.0 it's said to increase hp about 15 more which is pretty substantial. I would imagine it would do the same for you around there. Burnsville uses the stock fans from the newer 4 bangers for their hemi swaps. I was looking at going with the derale system which around 400 and comes with wiring and a shut off switch in case if you find yourself crossing water. If you end up doing it post how it goes

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Old 09-07-2010, 11:44 AM   #3
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I am also looking into this so please let us know what you go with, model numbers, set-ups, install info, prices, etc. Thanks and good luck.
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Old 09-07-2010, 06:59 PM   #4
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Quote:
Originally Posted by jeepmedic4
I am also looking into this so please let us know what you go with, model numbers, set-ups, install info, prices, etc. Thanks and good luck.
Sure will
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Old 09-07-2010, 07:03 PM   #5
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Dont pay 400 dollars for a "fan kit" lol. Youd be getting ripped a new one.

Go to a junk yard and pick up a fan from a ford taurus or really any newer car. Measure the amount of room you can fit length depth and height and get a fan to fit. You could prolly get the fan, wiring and a switch all for under $150 easy.


And use the extra $250 on something worth it!
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Old 09-07-2010, 09:27 PM   #6
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you can get a fan conversion kit from FF Dynamics for $200.00. the kit has everything that you'll need for the conversion. i just did mine, 4.0. i live in southeastern georgia where it gets extremely hot along with high humidity and the fan has worked great and i do feel some power gain from this conversion.
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Old 09-07-2010, 09:58 PM   #7
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Its not worth the trouble and may cause other problems. I have three different fans that I have run in my YJ because I don't have room for a clutch fan and none save any noticeable horsepower. You may have trouble cooling the engine if you live in a warm climate. The electric fans with a shroud have not been as good at cooling my jeep on the highway as the clutch fan did. It cools better in town in stop and go traffic and on the beach and trail traveling slow. The fans without a shroud did better on the highway but ran too hot in town. These fans were all set up with the best aluminum radiator Novak conversions sells so it was not due to the radiator.
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Old 09-07-2010, 10:04 PM   #8
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Hmm. Any vehicles like with V8's ive never had any problem with over heating. Especially at highway speed. Most vehicles dont even need a fan going over 60mph.

I'd do the swap but I have more important things to splurg on! haha. Anything that is belt driven that is removed will help gain some HP. Not much usually and the fan pulley is going to be moving anyways since it is connected to the crankshaft pully. Usually that is.
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Old 09-08-2010, 09:30 AM   #9
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I believe the highway cooling problem stemmed more from the winch in front of the grill which would have been okay except for the fact that the air did not flow through the electric fan shroud as well and that added restriction compounded the problem. It probably wouldn't be as big problem without the winch. The problem only pops up in the hottest part of the summer but it is a problem just the same.

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