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Old 06-25-2012, 01:25 PM   #1
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Bmw electric fan conversion

Started on my electric fan conversion. I have little to none fabrication experience. I got my wiring done this morning and I am going to finish fabricating the brackets to mount it with. I think it's gonna work great.

There is a small opening on both side. My question on that is should I try to close them up the best I can. It's maybe about a half inch smaller on both sides.
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Old 06-25-2012, 01:28 PM   #2
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I have it hooked up to a switch. No relay. Just put a 35 amp fuse in between the battery and the switch. It turns on. The fan is a two speed. You guys think I should run it on low or high. I could also hook up a three way switch or even just a second switch so I can have two speeds.

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Old 06-25-2012, 02:15 PM   #3
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if you need both speeds, which you probably won't on a 4cyl, use a hi-amp 3-way switch

I wouldn't worry about the gaps
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Old 06-25-2012, 02:20 PM   #4
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I would ditch the multiple speeds myself (and will do this in a few weeks when I do my Taurus fan install). To me, having total control over it with a dash switch is my best option so I'm going that way.
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Old 06-25-2012, 03:27 PM   #5
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Well I worried about it and this is what came out of it. It's absolutely perfect
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Old 06-25-2012, 04:13 PM   #6
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Its great
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Old 06-25-2012, 06:10 PM   #7
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Hooked it all up and it works amazing
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Old 06-25-2012, 07:37 PM   #8
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I like the way that looks. utilizing the existing shroud and freeing up some of power loss from mechanical fan. What model, make, year did you scavenge this fan from?..Driller
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Old 06-25-2012, 08:21 PM   #9
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I took it off a 1998? BMW m3 it was very close to the size of the shroud so I cut it down with a dremel. Drilled a couple holes and bolted the fan to the shroud flush with the radiator. I might cut down the shroud. I drove it up to running temp then let it idle for about ten minutes. It stays under 210

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