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Old 02-15-2005, 08:57 PM
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Unhappy electric fan on chevy truck 350 ?

I am curious about installing an electric cooling fan on my 1988 chevy 1500 truck . Are there any after market electric cooling fans
out there for a 350 engine?What about installing a fan from a from a larger sedan , or even two small VW fans . Some seem to move quite alott of air . My main concern is , assuming I get a fan with the power and potential to keep the temp in specs , where should and how could I install the fan switch ?
Any suggestions will be greatly appreciated .
Brian

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Old 02-15-2005, 09:07 PM
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electric fan

There are lots of places to purchase electric fans. Singles or doubles that will fit your application.

Wiring
Going from a switched power source. Run 2 wires to a relay switch. The relay activating wire will cross the relay to a thermo switch in your water jacket and grounds to the block when temp reaches a pretermined temp. The other power wire crosses the relay when the switch is activated and sends power to the fan(s) and grounds to chasis.
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Old 02-15-2005, 10:37 PM
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Hey, Brian

Here's the best way to wire everything up ... and a look at what I did with my 350:
Wiring an Electric Fan Using 2 Relays

You should also check this out:
The Wrong Way to Wire Up An Electric Fan

Alan
54 Chevy Pickup
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Old 02-21-2005, 01:32 AM
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my fried purchased a fas switch with a temp sensing bulb, its adjustable to whatever temp you want, by means of a rheostat. his 350 s10 never gets above 189 degrees, i purchased one for myself, havnt installed it yet.....they only cost about 20 bucks at advance
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Old 02-21-2005, 06:35 AM
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Where did you buy it? How does it get hooked up? Do you have any photos or links?
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Old 02-26-2005, 02:55 PM
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I found a new fan for a very reasonable price . A thermoswitch comes with the kit . I can't wait to lose the engine driven fan and all it's drawbacks . My fan clutch wore out and the vibration it caused made me think my freshly rebuilt engine was coming apart at the seems ! It also destroyed my water pump . Electric cooling fans seem like a much better Idea .
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Old 02-26-2005, 03:01 PM
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I going to post a thread in the suspension section about 16" wheels and larger tires for my 88 1500 . I have some transmission concernes .I need input from chevy truck enthusiast .
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Old 01-06-2006, 05:01 PM
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Tem Switch

Brian, you want to install the temp switch either in the manifold or the top of the radiator hose. You can install a bung into the radiator tank, but the motor or hose is best. Try not to use the probes that go into the radiator fins. Adjustable switches are not necessary. Please feel free to call us at *. We will be happy to answer any questions you may have.

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Old 01-06-2006, 05:06 PM
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One more thing...

Oh yeah, SPAL puts out a great quality product. Most electric fans will "work" for any car. The thing you want to find out first is the size of the radiator. How much room between the radiator and the motor? How are you going to mount the fans if you go this route? The important thing to know is when going with a two fan set up. Never go under 11" in diameter. The goal is to cover as much of the radiator core as possible. One single 16" fan will not work with a radiator like yours. The blades of the fan will only blow air on about 5% of the radiator. Again please feel free to call us anytime!
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