I'm in the middle of installing a new aluminum radiator and an electric fan. The fan I'm using is a Perma-Cool standard fan (Jegs #771-19126). It's a bit big at 3 3/4" thick but flows 2100cfm. I'm mounting it in front of the radiator since there's not enough room behind it, even with the mechanical fan off. It almost fits perfectly, but requires a little trimming at the top of the radiator support oppening. By the way, the radiator I'm installing is a Summit Racing aluminum radiator (part #SUM-380425). I got so fed up with my engine running hot, the original radiator was trashed. This one from summit costs just as much as a stock replacement from Mustangs Unlimited. It looks cooler too
If you are looking for a VERY GOOD quality fan with good CFM then I recommend the Sidewinder. The motor swivels so you can move it for clearance and the motor is made by SPAL. You can do a search on Ebay. The manufacturer sells it there. I have seen one in action and it looks and works well.
As for my own fan. I still like my mech. fan. But, I do run a Mazda 323 helper fan before the radiator with a switch mounted in the water neck.
I'm running a 14" fan I picked up at Autozone. It's mounted in front of the AFCO aluminum radiator I'm using. Not sure of the width, but it is right up against the hood release.
A puller with a shroud would be more efficient, but this works well.
If you have the room a junkyard electric can be great. I'm planning to install one from a wrecked Escort, free. You can narrow things down pretty quickly based on the dimensions. http://www.flex-a-lite.com/auto/html/electric-fans.html
Anyone have some information as to CFM requirements.
I believe I have the same fan that Put Put does. I looked at just about every brand there was out there at the time (this was about 5-6 years ago) and that Permacool was about the thinnest one that put out the most CFM. There were some other 16" fans that only put out like 1500-1600cfm (I think it was the Mr Gasket one). Though there may be thinner and better ones on the market now...
But this one is on my 302, but I do have a 4 row radiator, so there's not a whole lot of clearance to the water pump pulley... there's barely enough room to get the belts around it... But I'm sure on the 6's you have even less clearance...
I have a 16" Mr. Gasket brand, very thin and about 1700 or so cfm. It's mounted in front of the raditator with an a/c condensor too. No mechanical fan at all and all is well temp wise.
Walk up to any new car and listen. It's the same thing. Electrical makes perfect sense. They only come on at idle because when you move, the wind keeps the engine cool. It's at idle when you really need the protection. A mechanical works just the opposite of what you need., It's slow at idle and fast at speed. At speed, it only drags the engine and robs hp.
The radiator I'm putting in has two 1" rows. Summit says it's supposed to outflow a normal 4 row. It has about the same thickness overall as stock, but the core is thicker at 2 1/4" Also, on the perma-cool fan I have, you can flip the fan over so it works as a puller or pusher.
You can hear my fan from a mile away, it was annoying at first, but now Im used to it. It even gets compliments from time to time which is even wierder. Oh well, it keeps my baby cool for the time being, one day I will replace it if need be.
Matt
Slade, my 67 mustang is using a flex-a-lite fan. This will work on vehicles without a/c. The fan is a 12" single puller with an adjustable thermostat. It is rated at 1250 cfm. The summit part #FLX-110. I run an engine thermostat of 180 degrees with the fan set at a 190 setting, which is adjustable. This fan is only 2 1/4" thick. So remove the mechanical fan & enjoy the increased power. You will have about 1/2" clearance from the fan to the water pump shaft.
I live in south carolina so the summers are hot. I have never had an overheating problem yet with this combination. If you have a/c this setup will not work. Stay cool. william
Where did yall put the temp sensor for the fan switch? I put mine on the radiator and then adjusted it to come on when the motor hits 160* and it comes on when the temp gauge only hits 100-140*. Whats that all about? Should I move the sensor?
Matt
Matt, on the flexolite fan the sensor is inserted it the top tank inlet from the hose from the thermostat. This way it is a true temperature reading. Check your fan instructions or call the manufacturer for the correct mounting spot. Stay cool william
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