Hey everyone, me again with my budget built bogger. Anyway today while looking for a bucket for a grain sample i releazed that when i was looking though an old probe that was bought for parts for my brothers vandaized car (tranny as well) that it still had both electric fans. The bigger fan is behing the rad and the smalle one is on the front of the rad. Now my questions to people with electric fans on their rigs (namely muds truck) will these electric fans of an 89 probe provide enough air for the current 400 and possibly a built 460 (between 400 and 450 hp)?

As for the wiring if i use these i would hard wire them to 2 toggle switches with lights mounted just above where the stereo goes.

 

It depends on whether or not they cover the area of the radiator. As long as you have 1/2 or 3/4's of the radiator with a fan blowing through it, they might work.

 

They will cover all but the bottom 6 or 7 inches.

 

I personally run a dual fan setup from a dodge dynasty, with the radiator in the bed, and it seems to work just fine for me. As far as wiring use relays when these fans first kick on they can pull alot of juice, and most toggle switches can't handle it in the long run, so the relays are a good safety measure.

 

A couple things I'll mention in my experience with electric fans. First make sure you use a shroud. If you don't have one and can't find one that will work with the fan then build one out of sheet metal. I've experimented every which way with these and found there is no way it will cool enough without a shroud. Second, I could be wrong but I'm doubtful that a single puller from an Probe is going to move enough air to cool a 400 or 460. If you can, get two good fans to use as pullers. You can mount them diagonally on the radiator and build a custom shroud. I've heard the Taurus fans work well though I haven't tried them.

As far as a push fan goes some wise man once told me that a pusher has to work twice as hard as a puller to cool an engine. I've found this to be very true . . . a pusher is a great supplement but don't rely on it to cool your engine. Also remember that most fans are designed to pull, not to push (by means of their blade design). You can reverse the direction of the fan but it won't put out near as much as a pusher. I'd recommend going to a junk yard and getting an actual push fan off of a front wheel drive car. I've found the best pushers are the Bosch fans which can be found on European cars (BMW, Mercedes, Audi, Volvo). They're used to move extra air through the AC condenser and the blades are designed to push. I'm going to be using 2 Mercedes pushers and a heavy duty Volvo puller on my truck. The pushers will help force extra air through my tranny cooler.

Lastly, if you're wiring them to a toggle don't be retarded like me. Set up a light that will alert you as to when the fans are OFF and make sure it's bright. I made the mistake of shutting my fans off for a mud hole and then ran the whole rest of the trail without them. I don't know exactly how hot I got but the temp guage wrapped out and hit the base peg so it was over 300. If you get a "Viper" alarm LED it's easy to wire it up so when the power is cut the light comes on. And it's bright enough so you won't forget about them.

As a side note, I know you've got the two fans already available so experiment with them but if you have to buy this stuff from a self pull yard it's dirt cheap. I can get them in town for $8-$14 a piece.

 

No doubt! Even a single fan will burn up a toggle switch when it kicks on. Bosch relay is about $4 from any parts store and has 2 outputs if you want all fans on 1 switch.

 

the 2 outlets on a bosch relay are not on at the same time, one is normally open the other normally closed.
And the shroud deal is why I like the dynasty fans it's a dual fan puller setup with a built in shroud, and they are the tornado (read curved) style blades so they move alot of air, and I found they covered my stock radiator all but 1-1/2" at the bottom, and perfectly cover the C&R rad I have now

 

Dang, and to think that i sent 2 Audi's to the crushes a few weeks ago and didn't even think to look for elctric fans. But when i go up to get my 9" for my disc brakes conversion on my 82 flareside I will see if i can find a pair of fans.

Yeah i forgot to mention that i would use relays. But I know that the yard that i will going to pick up the rearend has a few dastanies, and then i will find a pusher and run them together.

Another thing, between this post andmy first one in the topic, my dad same home from an auction and found out that one our friends has decided that he will seel me the 410 he has (it is a well running motor plus it makes 330hp) so i guess now that these fans might be pushing air to cool a 410.

 

I've got mine hooked up with seperate outputs for my 2 fans. I believe it's the center one that turns off when you activate the relay but the outer two turn on? I don't remember for sure now . . . I'm going to have to pull the whole thing apart in a month or so to install my final setup.

Right now I run 1 3300CFM puller and a heavy pusher but with no shroud I have to be REALLY careful not to overheat the truck. It's okay when it's cool out but anything 80 degrees or warmer and they won't keep the temp down when the truck is still. And I'm not running any kind of performance engine . . . pretty close to stock 460.

EDIT: If you get the Dynasty setup I wouldn't even bother with pushers right off. Chances are you won't need them. Where people run into difficulty is when they don't have a shroud they are only sucking air through a very small area on the radiator rather than the whole thing. They add a pusher to try to increase air flow but this doesn't change the area cooled. The only reason I'll still be using pushers is for my tranny cooler which is going to mount in front of the radiator.

 

here is what the dynasty fan looks like in my setup, you can see even if not a good pic for that, make sure you get the one that looks about like this the other type doesn't have the shroud, I think the difference was one was used for 4cyl, and the one I use is from V6 cars.

 

Thanks Monsterbaby, that picture helps out a lot and gives me a good idea on what it'll be like.

 

That Dynasty setup must be killer to be able to keep your engine cool with the radiator down there out of the air flow. What's the measurements on that? Just wondering how it'll fit a stock Ford radiator.

 

it fit my stock radiator in my 86 real well, like I said earlier all but just a small amount at the bottom of the radiator was covered, I will get the measurements tommorow in the day light, and post them for you when i get home from work.
on edit, I think it is a killer setup about one of the best from an OEM application, but I suppose my radiator my have something to do with it, that is a 4in thick alum. C&R radiator from a winston cup car (or whatever you want to call them now but will always be winston cup to me)

 

Cool, it should fit 81 quite well then.

 

That's awesome. A lot of the trouble with finding electric fans is that they're typically designed for cars with a short, wide radiator so to get them with a shroud setup that will work for our trucks is tough. If you can't find Dynasty fans check out the fans from the newer Caravans. They're a single fan puller but the shroud looked like it may fit a Ford radiator well. This was my other plan of action when putting together parts for a cooling system.