I know we can fit two 12 flex a lite fans (the combo) but I see that the perma cool fans have a much higher CFM rating. Can we fit two 12" fans? Or would only one 14 or 16" work? Any thoughts??

 

Here's two 12" Perma Cool Fans mounted on my stock 91 camaro radiator. I like these fans because they flow 1650 cfm each and draw only 7.5 amps a piece.

 

wow them parma cools fit Nice on that rad.. i have a couple questions how much are they each, where did you get them, and how big of a help were they.... im having trubles keeping my camaro below the 240 mark soo this might help me ALOT
thanx

 

Click here correct me if im wrong but two 14" fans will fit on a larger aftermarket radiator like griffins 31"x19"

 

Dual 14" fans will fit on a 31"x19" radiator but, it's not as easy or inexpensive to do. The two Perma Cool fans helped the engine temperature go from 260* in 105* weather stop and go traffic down to a little over 240* in the same 105* heat and stop and go traffic. In normal summer weather (95*) The engine temperature is around 220* in stop and go traffic and 190* on the freeway.

 

How hard was it to install? How did you wire them up? And how did you hang them on the rad? I think it should help me out alot over the stock fan. I am not sure if I need two fans, One 14" might be enough. My car now as it is only gets to a little over 220. I have the fans hard wired to a toggle switch. A bigger fan like a 14" would do me just fine. Thank you for the answer.

 

Those fans are easy to install but you have to put them low so they don't interfere with the plastic piece that goes over the radiator and AC condenser coil. I had a set in my car and it didn't help cool the car that much. The temps would still go past 220. Later I discovered that the plastic straps that go through the radiator had worn out several holes in the radiator tubes. So I bought a Modine replacement radiator that's the same as OEM and re-installed the factory fans. Now the car hardly ever reaches 220 even with the AC running on high 90s weather. On 80s weather the car runs about 180s with AC on.
One thing that I tested when I had both sets of fans off the car was the air flow from the fans. I first tested the Perma Cool fans and they moved quite a bit of air, but when I ran the factory one the difference was obvious. The factory fans move more air, and that's without test equipment to tell the difference.
I would just use factory fans but if you still want to buy the 12 in. Perma Cool fans then I have a pair to sell.

 

The fans you have to sell, are they connected? I will be getting an air damn to help. When you did the changed the rad, you did have both fans on at different time? And you are saying that the factory fan pulled more air than the perma cool fan? I will take your word for it but it seams hard to believe.

 

When I checked the fans I was holding them by the motor and I could sure feel the difference. I have no idea what the rated CFMs for the factory ones are.
The Perma Cool fans are OK but if you mount them through the radiator fins you will end up with a leaking radiator.
The fans were wire just like the factory dual fan setup but one was operated by an adjustable fan switch with the probe in the radiator.
If you have a single fan maybe you should stay with a single setup and buy the biggest you can fit in there (just my opinion).
You might want to do some searches on the Perma Cool fans before you get any. When I put mine in I was all hypped up and they looked great. Then I found the leaks and got disappointed very fast. So now I have my factory duals back on and the engine has no problems with temperature.
Later,
Ozzy

 

I thought of that too. I had major cooling problems cause I live in the sticks with like mostly 35 mph max corners even in my bird. I bought 2 12 inch permacool electric fans... 1650 cfm each and a 10 inch for the front to go on the trannie cooler (probuilt with 2400 stall) cause it was getting really hot like 230+ trannie degrees in city. I worked with darn nylon ties for awhile on fans (stupid AC) and just gave up since I was using stock radiator I just put double plastic ties on the outter metal ring on the fans and put them on the actually radiator shroud bolt holes for the old fans worked out nicely. Had both fans on and wired in 10 minutes or so. Just make sure you double tie them if you use this method because I have seen a single tie break before... as for maintance just check the ties whenever your under hood or changing oil pretty easy.

The 10 inch I put on the front like I said earlier was a pusher and I mounted it right on my cooler off to passenger side of the support with plastic ties also. I would recommend wiring it up seperate since your antifreeze isn't going to be same fluid temp as your trannie fluid. I can throw the main switch kicking on all fans get about 180 on trannie and like 160 motor in town (on extremely hot days 100+)... or about 150 trannie and 150 highway.... I just use them in case it gets really hot above 200 motor or 190+ trannie, make sure you let your motor still hit closed loop which is like what 180 degrees or so.

I can hear a hum even in the car with motor in start position with fans on that's how much air these move. Those permacool fans weigh more than you think too... they're a lot heavier than the stock ones but you can clearly tell they move a lot more air too.

I just blew a radiator out yesturday.... right in the driverside where the plastic meets the core about 1/2 way down sprayed out all over the battery... so I guess I'll be swapping in a griffin so I think I'm going to wire up all fans seperate each on a toggle switch.

 

I am going to go and make a air dam out of sheet metal. I think that will be a little stronger than the plastic. You can also get a fan for about 200 that moves somehting like 2500 cfm, and I think it is a 12" or so. I still have to see what is the best way to go. But from what it sounds like the perma cool fans are the best for the money. So when I get some of it I will be going with a 185 thermo and 1-2 fans for my car.