switch to electric fan only 250

[351 celi]

Has anyone swwitched to only having an electric fan? Pusher or puller configuration? Trying to make this cooling system as reliable as possible and simple with the stock radiator. Thanks!

 

[LaGrasta]

I'm running only an electric fan, 16" Mr. Gasketâ„¢, pusher. It's an ebay special I paid $50 with the adjustable temp.
It's been a few years now with temps over 100°, no problems at all. And that's with an a/c condenser between the fan and radiator too.

 

[powerband]

OEM '61 radiator and '71 MAverick radiators couldn't keep the "HOT" 250 six cool enough. THere wasn't room for a WP fan anyway.

I got the Summit "Universal Racing Radiator " for Ford app= 26X19Ford for @ $ 160 and a mounting kit for $17 more.

For the fan, I'm using a $110 Perma Cool 2950 CFM fan and variable thermo set to @ 160F. I'm using an the Permacool 15" in the more efficient "Puller" position - in front of the radiator with some trimming of the hood latch support.: I can get stuck in traffic going into a car show wih no worries. Of course in this car it is OK that I had to cut a lot of Rad support and the hood brace to fit the filler.

Powerband

 

[351 celi]

nice thanks for the input and ideas. I bought the 16", will use the stock 73 radiator in puller position with 160 thermo. Went ahead and bought new cap, hoses and pump too.

 

[wallaka]

OEM '61 radiator and '71 MAverick radiators couldn't keep the "HOT" 250 six cool enough. THere wasn't room for a WP fan anyway.

I got the Summit "Universal Racing Radiator " for Ford app= 26X19Ford for @ $ 160 and a mounting kit for $17 more.

For the fan, I'm using a $110 Perma Cool 2950 CFM fan and variable thermo set to @ 160F. I'm using an the Permacool 15" in the more efficient "Puller" position - in front of the radiator with some trimming of the hood latch support.: I can get stuck in traffic going into a car show wih no worries. Of course in this car it is OK that I had to cut a lot of Rad support and the hood brace to fit the filler.

[img ]http://img.photobucket.com/albums/v296/Powerband/COMET%20IN%20PROGRESS/PUMPCLEARANCELS_WEB.jpg[/img]

[img ]http://img.photobucket.com/albums/v296/Powerband/COMET%20-%20%20STAGE%20II/ENGINERADFROMFRTRT.jpg[/img]

[img ]http://img.photobucket.com/albums/v296/Powerband/COMET%20-%20%20STAGE%20II/FAN3.jpg[/img]



Powerband

It looks good, but it's a pusher fan. Puller fans are behind the radiator, and "pull" the air through. They are more efficient because fans aren't as effective at building pressure. Yours is still likely overkill

 

[Anonymous]

his fan may be set up to turn ccw. my derale goes both ways. sort of useless when moving.

 

[LaGrasta]

I thought I'd update this post with my current set up. I'm still running the same 16" elec pusher fan, but I recently had an opportunity for a new aluminum radiadtor. I installed it and it is simply amazing. The fan could probaly be removed altogher.
I will never replace a stock radiator with a OEM copper unit again.

 

[jahearne]

I just received two 10" fans that I plan to install this weekend. A quick test fit shows that I can mount them as pullers on the big block radiator. I'll post some pics.
LaGrasta, didn't you have a big block rad. before this one?

 

[LaGrasta]

yes, I did. It worked great, never a problem. But this aluminum one is just plain beautiful under the hood. It's a Northern Brand and the welds are awesome. It's just fun to look at. Industrial art, if you will.
Oh yeah, it really keeps the car cool too. :roll:

 

[falcon fanatic]

LaGrasta, are we ever going to see any pictures of your car?

 

[addo]

It'll make you very dissatisfied with yours! There's some neat details on it.

 

[jahearne]

This is my attempt at electric fans on a 250 using a big block radiator w/ a couple of 10"ers:

Left

Right

and Center

 

[LaGrasta]

those 10s look good. I believe that is about the easiest way to use an electric fan on our engines BEHIND the radiator.

as for my pics, just do a search either on fordsix.com or jalopyjournal.com, there are many.

 

[66200i6]

Hey! You beat me too it.

This is my attempt at electric fans on a 250 using a big block radiator w/ a couple of 10"ers:

The Idea: Staged set of two fans. One is allways powered based on the temp at he T-Stat. This will operate after shutdown and help prevent Heat-Soak Boilover. The other operates w/key on, based on temps at the lower Rad-Hose.

A good idea, Me Thinks.

Have, fun. Ric.

 

[jahearne]

I hadn't thought about making one powered by the key. What I like about two fans is the redundancy of the setup. If one fails, hopefully the other one will be enough to get you home, which reminds me that I need a double pulley for the alternator. Both are currently powered off a terminal block from the battery via a couple relays. One is off the T-stat set to go on at 185 and off at 170. The other I planned to come on at a hotter temp and/or bypassed by a manual switch at the dash. The second fan was going to come off a probe between the fins, but LaGrasta mentioned that they are flimsy, so I'm at square one on how to regulate the second fan.
Any suggestions?

 

[OzHemi]

The second fan was going to come off a probe between the fins, but LaGrasta mentioned that they are flimsy, so I'm at square one on how to regulate the second fan.

Summit (and most other similar places) sell thermal fan switches that screw into the water jacket. That is the way I went on my Torana.. works like a factory setup basically and is nice and sturdy (I run the power to the fan through relays of course)
You can even get adjustable setups that use the screw in sensors, but the one I have (don't remember the brand off hand) just comes on at a fixed temp.. 165 degrees from memory.

 

[66200i6]

The OEM Temp Sensors come in a number of different temp settings. There are a number of ways to get your reading from. The late model 250's have a threaded port in the T-Stat housing, you can tee off of the water pump re-circ hose or the stock location for the stock temp sender, ect. Be creative, it really doesn’t matter, in a health system as long as you get the correct settings to get the fans turned on at the proper time.

Good luck, Ric.