electric fan
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electric fan
I have a 94 300/6 5 speed and am considering an electric fan. I have followed some of the posts on this and it seems like the best way to grab several extra horses, my inquiry is, can my stock alternator which has been replaced once due to a fire at the alternator handle the extra load safely.
Fleet Mechanic
Joined: Aug 2000
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From: Texas
electric fan
If not I know summit offers an alternator that puts out 140 amps. Which sounds really good to me, with all of my equipment.
Might be something to look into. I think they run $170 from summit.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
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1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
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electric fan
I have replaced mine with a flex-a-lite M150 puller on the inside and a flex-a-lite 12 inch pusher on the front to cover most of the condenser and radiator.The only thing I have noticed is at night, idleing with the lights on, a/c on and the fans on, the lights will dim a little, other than that I have no problems with this set up.Upon my installation I found that the heavy duty radiator I installed last year only left me with a 3 1/2 inch clearance to the engine and the fan needed 4 inches so it is a very tight fit in there.
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electric fan
The best fan to go with is one out of a lincoln mark VIII, sure they may draw more amps than a perma-cool, but I would rather have the extra air flow and cooling power than a little lower amp draw...I still haven't been able to locate a mark viii fan or I could comment on how well it works.
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
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electric fan
Hi, your alt. should be able to handle this without a problem because it won't be running constantly and the alternator is built to handle everything the truck has so that little extra draw shouldn't hurt it at all. John
Posting Guru
Joined: Jun 1999
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From: Durham
electric fan
I have not seen any fans come close to the pulling power of the Perma-Cools. The 14" (I have 2 across my radiator) and 16" each pull 2950 cfm, that's 5900 cfm with the duals...
'82 F150 2WD w/351W (orig 300 I6)
Slik
'82 F150 2WD w/351W (orig 300 I6)
Slik
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electric fan
slikness: you need to realize that that CFM is what is rated by perma-cool in there ads, take that with a grain of salt, just like any other mod, like how a drop in air filter (K&N) can make UP TO 20hp more for you, yes it COULD...if you had a clogged foam filter before you switched, that cfm rating is probably under a controlled situation with optimum everything...having seen both fans (brother has perma-cool in his `91 blazer, the 16" model) and he has a lincoln mark VIII fan in his `93 mustang drag car, the lincoln fan blows a LOT more air, but it does use more juice, his mustang is an ex-highway patrol car so it has the 130amp alternator on it...thats my only concern with using the lincoln fan, but if the lincoln can handle it, I hope my truck can.
red: any magazine or performance website, try www.summitracing.com or www.jegs.com for starters
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
red: any magazine or performance website, try www.summitracing.com or www.jegs.com for starters
1995 F-150XL SC/SB
http://members.sounddomain.com/blind
5-Star Rated F-150 (Big Stereo)
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From: Durham
electric fan
I guess I'd have to see it first. And yes, I undestand the ratings, but I also have several electrics with their comparable ratings to compare to and I now have 3 vehicles with the Perma-Cools. Once again, when compared to SPALS and anything that I have cfm ratings on, nothing pulls as many cfms at the low amperage. You also have to be careful on how the rating is calculated, how the fan fits to the radiator, does the fan use a cowl, how deep is it in the cowl, where is the rating obtained in relationship to the fan, etc.
You can get the Perma-Cools direct, or through Summit, JEGS, and some local auto parts stores.
'82 F150 2WD w/351W (orig 300 I6)
Slik
You can get the Perma-Cools direct, or through Summit, JEGS, and some local auto parts stores.
'82 F150 2WD w/351W (orig 300 I6)
Slik
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From: Durham
electric fan
Oh, by the way, I believe you when you say that the lincoln fan blows more air, it would just be interesting to get a good measure on it. That's just like the small Ford mechanical fans are used by the Winston Cup drivers on the short tracks to get max air most efficiently while they use small electrics on the super tracks.
'82 F150 2WD w/351W (orig 300 I6)
Slik
'82 F150 2WD w/351W (orig 300 I6)
Slik
Senior User
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electric fan
True, aftermarket fans are all rated different ways. That is interesting that the nascar boys use mechanical fans on the short tracks, but I geuss they'd need to pulling 8k RPM and not moving at 180 mph to cool the engine 
Yah I know the perma-cool works really good for the price, but an original equipment fan makes me feel a little better about what I put into my truck...I plan on using perma-cools temp-a/c-manual switch once I find a lincoln fan though, too much of a pain to try to make sense out of the harness from the mark viii and try to get that thing hooked up, heh
1995 F-150 XL Reg Cab/Bed
http://members.sounddomain.com/blind
5-star rated F-150 (big stereo)
Yah I know the perma-cool works really good for the price, but an original equipment fan makes me feel a little better about what I put into my truck...I plan on using perma-cools temp-a/c-manual switch once I find a lincoln fan though, too much of a pain to try to make sense out of the harness from the mark viii and try to get that thing hooked up, heh
1995 F-150 XL Reg Cab/Bed
http://members.sounddomain.com/blind
5-star rated F-150 (big stereo)
