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Old 11-08-2002, 07:17 PM
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Question Electric cooling fans. "Pusher" or "Puller"?

OK, I'm thinking of eliminating my mechanical cooling fan behind the radiator to gain cooling capacity in idle and high traffic situations with a big-block Chevrolet motor by replacing it with an electric model of the 14" to 16" dia. size in the 1,500 cfm to 1,800 cfm range.
Do I want to use a "Puller" type fan with it mounted between the motor and the radiator? Or, use a "Pusher" type and mount it between the radiator and the grille?

My car runs great temps when driving more than 35 mph steady. But really heats up in traffic!

Which type have you used, and which would you recommend?

Thanks,
Tom...32 Pontiac streetrod, BB Chevy power

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Old 11-08-2002, 07:22 PM
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A puller with a shroud is the only way to go if you have room for it. It will use the entire radiator core surface. Puller with out shroud is less effective and pusher is the worst; it just shoves air through the middle of the core and uses none of the rest. Geet the highest rated fan you can get and a good fitting shroud and it should work fine.
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Old 11-08-2002, 08:37 PM
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Cool

Agree with Willeys36. A fan shroud and the largest elect fan you can get into the shroud. Pull the air through. I have seen both used, the push on the outside as a backup for traffic stops and the pull inboard for normal operation. The out board can also be operated by a switch on the dash and/or thermostat. I use two elect. outboard on my 37 Dodge, mustang radiator and the mechanical, standard fan on the engine side in a shroud.
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Old 11-09-2002, 02:57 AM
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I have to agree with Willys. Also like to ad: If you have A/C a pusher fan will be better for the A/C temp inside the car.

Have to ask this question. are you running hot or boiling over when you are overheating?
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Old 11-09-2002, 04:06 AM
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Gotta love that Poncho, different is cool.

It looks like we all agree with willys36. I converted over to a puller fan on my Model A Tudor. Went with a Cooling Components combination shroud / fan. It was a breeze to install. Their phone number is 1-901-336-6194.

I am running a Walker Cobra Radiator ('32 Ford) and small block Chevy (10.5:1). Now that I have the electric fan I have yet to have the temp. go over 190. Even in sweltering summer days stuck in traffic.

Good Luck
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