Hot Rod Forum banner

Cooling fan setup on a early model ford.

3K views 7 replies 5 participants last post by  wlyons321  
#1 ·
Need some opionions, photos perhaps, and tech info on setting up a dual electric cooling fans or ideas on fabricating a shroud of some sort and using the current fan to get ok stinky blue cruising again. She runs a bit warm now after a few minutes of driving. Rebuilt radiator, new thermostat, hoses etc. Cool car run great.
Image


Sent from my LGMS550 using Tapatalk
 
#2 ·
The champion radiators I use just use a simple square box which attachs to the radiator and the fans or fan attaches to that.. Sorry no pics but that is easy to fab up. Just have to figure out how to attach the shroud to your radiator support.

Sam

On that car with the clearance issues you may need to put the fans in front and do a blow through deal..
 
#3 · (Edited)
I installed 2- Derale #16925 fans in front of my radiator on my '36, they are designed to push and they push a lot of air. These are 12" fans and fit stacked. You do not use a shroud with pusher fans, but it does pay to seal around the radiator sides, top and bottom to prevent the air from taking the least path of resistance. I have my fans wired to come on separately with the top fan doing most of the cooling duty and it keeps my motor cool except when outside temps are real hot or my A/C is on.

But be aware, these fans draw a lot of current.
https://derale.com/product-footer/electric-fans/universal-electric-fans/h-o-extreme/16925-detail
 
#4 ·
That is a very good point to make about the amount of current these little buggers consume to keep at peak efficiency. Also beware all people whom think these fans are the same. You be best to Buy from a reputable company.
Here is a quick description of what I found after looking into Fans. I went to fleapay looking for a real smoking deal. I saw an ad from a supposed well rated company selling brand name fans that were "Demonstrators" they supposedly were only used in displays. I bought like 6 fans in a lot from the guy. I received a box of six gray market fans and only 1 worked. when I tore the others down they all had a common failure all related to the amount of current these fans pulled. They got so hot that the brushes that powered the motor had melted the plastic holder fro the brushes. Catastrophic damage ensued and made the thing completely useless. three fans had markings very similar to a major brand name and 3 had no markings at all. However every single fan was built identical inside... All crap Chinese!

Buyers beware!! If you want to buy a fan Buy from a company that stands behind it's products. :thumbup::cool:
 
#5 ·
I am running a .060 over '51 Merc Flathead that is pretty well built in my '36 Ford. I have a Cooling Component's fan and shroud behind the stock radiator and have no cooling issues. I do have a Chevy distributor and I think the modern vacuum advance helps also. It will never heat in traffic.

I will try to post a picture tomorrow. It is tight but fits with early water pumps and single belt.

John
 
#6 ·
Good points gentleman for sure. Would like to see your setup John. I found the fans on summit racing 140 ea. Not a bad price at all. Stacking them in front of the radiator I will have approx 3" overlap. Which shouldn't cause any problems. I really appreciate everyone's quick responses.


Sent from my iPad using Tapatalk
 
#7 ·
I am having difficulty getting a picture that is really clear for you. This is the best I've got. I am sure other people's systems work but I like the Cooling Component's set up real well. It covers the entire radiator with the exception ov about 2" at the very bottom.

The secret to efficient cooling is getting cool outside air movement through every inch of the radiator surface possible. My car will sit and idle on the hottest day and the fan will cycle on and off. To go to my daughter's house I have to cross a mountain that is about a 6 mile 6% grade. I would not want to have to pull Monteagle on a 90 degree day but I scoot right over it without issue as long as I get to the mountain early in the day.

One other note. Flatheads hate retarded timing. The more advance you can run on your distributor without pinging the cooler you will run on a hot day. Since the exhaust ports run through the water jackets, the exhaust gas acts just like boiler tubes in a steam engine. The more combustion that is completed in the cylinder head the better. I mentioned earlier, I run a Chevy distributor which has all the vacuum advance the engine can stand.

I also run a S-10 five speed that keeps the rpm's down which helps. With a 3:25 rear end, I am probably turning less than 2000 rpm's at 75 mph in fifth gear.

Good luck with yours.

John
 

Attachments