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| electric fan questions https://slantsix.org/forum/viewtopic.php?t=39467 |
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| Author: | SlantSixDan [ Sat Mar 20, 2010 12:16 pm ] |
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You don't necessarily have to spend a lot of money to do it. A lot of people have successfully adapted electric fan assemblies from wrecked cars originally equipped with electric fans. The controls can easily be bought aftermarket. Here, for example, is a photo-illustrated method of adapting a cheap, good, and plentiful (in North America) GM electric fan to a Volvo 240 radiator. The principles and techniques are universal (and the size of that fan is worth looking at). And here on the same site is a diagram for an easy-to-put-together electric fan control circuit. |
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| Author: | valiant1966 [ Sat Mar 20, 2010 12:51 pm ] |
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That sure is a nice fit in that Volvo and I'll bet works a lot better than standard fare. Guess I could go to a Pull-n-Pay and see what I can roust. Probably could get relay there too. Just get the fan with all attachments. |
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| Author: | Shaker223 [ Sat Mar 20, 2010 1:15 pm ] |
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Quote: Shaker,
21"L x 18.5"h
What is the core size on the Summit rad.? |
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| Author: | SlantSixDan [ Sat Mar 20, 2010 2:47 pm ] |
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Quote: That sure is a nice fit in that Volvo and I'll bet works a lot better than standard fare.
Well…I donno. Me, I do not currently plan to put an electric fan in my air-conditioned '73 to replace the solid 7-blade steel fan. Instead I'm going to put in a clutch fan from a Mercedes — see info here. I don't have a religious objection to electric fans or anything, and if they're picked and configured properly they work well and offer benefits. But they also bring disadvantages. A faulty electric fan motor is more likely to happen than a broken fan belt, for example. How much of a concern that is depends on the quality and condition of the fan you install. I might be more inclined to install an electric fan after I upgrade the car's charging system. The stock systems are rather weak at idle, and since the electric fan would be most frequently running at idle, it would aggravate the effects of low alternator output (dim lights, reduced heater fan and wiper motor speed, reduced ignition performance, stress and strain on the ammeter and wiring, etc.). |
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| Author: | valiant1966 [ Sat Mar 20, 2010 4:40 pm ] |
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All good points I like the idea of staying original on some aspects also Dan. I think the reliability of the fan motors now are not a big problem with all the practice car manufactures have had and the number of cars on the road with electric fans. Of all the newer cars I've owned, the only problem has been the relays on any fan related issue. Thanks for jumping in here Dan. I'm still weighing all the options and haven't totally decided what I'm going to do yet. Just thinking about that extra drag on the motor but maybe the alternator charging a lot, it would create drag also. |
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| Author: | valiant1966 [ Sat Mar 20, 2010 4:48 pm ] |
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By the way, do you have much need for air conditioning in Canada? |
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| Author: | olafla [ Sun Mar 21, 2010 3:05 pm ] |
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I can agree that the NEED for an electric fan is not very real, but it still scares the h.... out of me every time I open the hood and leans over a running engine with that fan running inches away from body parts. I don't have a shroud, but that wouldn't mean a thing for me, I'll go electric! Olaf |
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| Author: | coconuteater64 [ Sun Mar 21, 2010 3:45 pm ] |
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Quote: You don't necessarily have to spend a lot of money to do it. A lot of people have successfully adapted electric fan assemblies from wrecked cars originally equipped with electric fans. The controls can easily be bought aftermarket.
Yup, I got mine from a junk Saturn for $20, with relays, fuses, connectors, and all. Thing had fewer than 1000 miles on it, so I am positive it will last the life of my slant before it needs replacement. Now I just have to mount it.
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| Author: | valiant1966 [ Sun Mar 21, 2010 5:49 pm ] |
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Quote: I can agree that the NEED for an electric fan is not very real, but it still scares the h.... out of me every time I open the hood and leans over a running engine with that fan running inches away from body parts. I don't have a shroud, but that wouldn't mean a thing for me, I'll go electric!
Yeah, I can agree with that. I don't want to sound like a wuss but I spend a LOT of time under the hood of my car...while it's running and it scares me too. My car is a work in progress and I don't want to be one too.
Olaf |
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| Author: | radarsonwheels [ Mon Mar 22, 2010 10:25 am ] |
| Post subject: | fans |
Apologies if I missed something I skimmed a little above, but a lot of people have had good luck with big hp motors and fans out of HHR's they are very affordable at the dealership (gm I think?) and have OEM dependability and performance. I personally have a stock fan on my hotrod slant and twin spal fans with a fabricated shroud on my smallblock stroker. Good luck man |
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| Author: | tophat [ Tue Mar 23, 2010 4:32 am ] |
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Quote: I can agree that the NEED for an electric fan is not very real, but it still scares the h.... out of me every time I open the hood and leans over a running engine with that fan running inches away from body parts. I don't have a shroud, but that wouldn't mean a thing for me, I'll go electric!
I was never really scared around a stock fixed fan until this happened. Olaf http://www.slantsix.org/forum/viewtopic ... highlight= Now I run an electric fan. TopHat |
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