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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 04-06-2006, 12:43 AM   #1 (permalink)
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electric fans...

...so in my auto class this guy was installing an electric fan instead of the one that runs off the engine... he said that it would increase the power. Does anyone have knowledge to weather-or-not it would help my E21s performance?
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Old 04-06-2006, 02:28 AM   #2 (permalink)
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Not exactly in those terms.
Your car has a mechanical fan that does run from the engine, until the car's speed is sufficient that the air it's running into will cool it off, and the fan clutch disengages and your fan stops turning. An electric fan won't suck any power from the engine no matter how fast you're going, so some people choose to 'upgrade'.

It'll be lighter and quieter, but I don't think you'll notice a difference.
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Old 04-06-2006, 06:47 AM   #3 (permalink)
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To answer your question... No, you will not increase the power. You might free up some power that is lost from the resistance of the turning fan, but that's about it. Not a big gain. I would still prefer to do it, so that if I'm sitting in traffic I can turn it on with a switch I would wire in..
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Old 04-06-2006, 08:22 AM   #4 (permalink)
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Check this thread:

http://www.bimmerwerkz.com/forum/3-s...car-45318.html

Some discussion about that.

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Old 04-07-2006, 10:09 AM   #5 (permalink)
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Yeah, good thread Kyytsis, but what about finding a company that offers an e30 kit rather than one of the generic "make it fit your application" type of kits. Last time I checked, Flex-a-Lite http://www.flex-a-lite.com/auto/html/electric-fans.html
there was no specific kit, and there is a bit of customization that I just don't feel like doing to delete the fan. I want to delete my fan not for any reason other than I want easier access to the front of the engine without contorting my hands to work around the fan and clutch.

Anyone know of a company that does an e30 kit?

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