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So does anyone use those nylon ties pushed through the radiator these days? I had my fans on the front (pusher fans) but I'm switching them to the back (puller) and need to make some new brackets. Just looking for ideas. I don't like the idea of pushing things through my Dewitt's alum radiator.
This going to depend on the fans you have.....DeWitts has the Dual Spals, I have a set from him long time now....I drilled holes in the rad support brackets, the tag ends in the rear/back of the radiator, and took some aluminum angle struts from H/Despot and cut out tabs on the ends, to span the backside of the rad......SO to make it possible to fasten the fans in back on the same mounting plane as the radiator, along the bottom some aluminum flashing from home use....is bolted to the fan's lower bolts and tucks under the radiator, making a clean air damn there.....on the top, and sides, I used house plumbing pipe insulation stuffed around sides and top of the fans, it fits pretty good, and holds fine, maybe some RTV to secure it in place across the top.....
My car is a '72 vert with a/c I have '88-91 serp drive so the water pump is not an issue, and I have no comment if it would be IF it was a stock setup.....obviously the stock fan/shroud are toast.....
I dunno about your car as I HEAR the rad sizes changes over the years....much less engine sizes....
You'd be much better off throwing your little electric fans into the garbage and putting the stock shroud and 18" 7-blade clutch fan on. The electric fans only work good when the engine isn't running...................
My Flex O Lite fans came with thick plastic brackets. I used the bolt holes for the shroud to mount them. On my 74 427 BB I used the same fan set up as pushers. It worked great but on an AC equipped car puller is better.
You'd be much better off throwing your little electric fans into the garbage and putting the stock shroud and 18" 7-blade clutch fan on. The electric fans only work good when the engine isn't running...................
And you would be much better off hanging around a restoration forum rather than a performance section.
While you can use the push through plastic retainers you run the risk of developing leaks later. The push through style will rub on the cooling tubes and could cause a leak.
I would suggest a good bracket shroud setup that you can bolt to the top and bottom of the Dewitt's radiator.
You'd be much better off throwing your little electric fans into the garbage and putting the stock shroud and 18" 7-blade clutch fan on. The electric fans only work good when the engine isn't running...................
Originally Posted by Kacyc3
And you would be much better off hanging around a restoration forum rather than a performance section.
Kacy is correct..... too broke....you blew that one man.....to the point of ridicule.....
Really? Been running my electric fans for 15 years now without any problems so why would I switch back now? No shroud for me!
Well, Guess I should have more precisely stated my thoughts... On, my 650 hp 427, with a Dewitts HD 3" radiator running 2 spall fans right up on the radiator itself, I had cooling issues at low speeds, and fans ran more often, and not unusual to see temps in the 220+ range on hot short track days, or canyon runs... Went to a single brushless fan with home made aluminum shroud ... and if I see over 200 in ANY extreme condition in any weather, no...
So, maybe a low hp cruiser can get away with it.. but I sure can not..
Paul, I totally understand. I'm running a mildly warmed over big block (high rise, mild cam, headers, etc...) which only sees cruising and/or car shows. My racing days are far behind me. Traffic on hot days is the only time I ever have to worry about.
You'd be much better off throwing your little electric fans into the garbage and putting the stock shroud and 18" 7-blade clutch fan on. The electric fans only work good when the engine isn't running...................
This advice is dead wrong. I'm running a stronger than stock engine that is easily cooled by a single 11" spal fan. I've got a dual 11" setup (from DeWitts) and a controller that stages fan 1 at 195*(or AC on) and fan 2 at 210*. Fan 2 hasn't come on since I put in that controller.
Even nicer than that is that my engine never needs to drive a fan at all when I'm going faster than about 15 mph.
FWIW, this is with a 450 hp / 480lbft 400" small block behind it.
You'd be much better off throwing your little electric fans into the garbage and putting the stock shroud and 18" 7-blade clutch fan on. The electric fans only work good when the engine isn't running...................
Don't all new cars today run electric fans?.......they seem to work OK.
Mounting Electric Fans
feel free to PM if ??? 
