puller or pusher fan which is better (electric)
04-29-2009, 05:00 AM
#1
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puller or pusher fan which is better (electric)
as many of you know i did a conversion and was wondering what kind of fan is better for my application a puller or pusher fan? i have one that can go either way but was just wondering wha tyou guys thought? thanks
04-29-2009, 09:58 AM
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I agree. Plus, with a pusher, you have the mass of the fan blocking the radiator and it only gets the air the fan can get it. With a puller, it gets all the wind too.
04-30-2009, 02:15 PM
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had to mount it as a pusher fan in the front but i never had it hooked up on high the thing will just about eat a small child if they get to close
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04-30-2009, 02:41 PM
#8
I had two 10 inch pusher fans on a V8 vega I had that used to overheat, in addition to the regular fan, and those pushers never did a darn thing. Finally just went to like a 19 inch flex fan. Pullers all the way.
04-30-2009, 04:34 PM
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The benefit of pusher fans vs puller fans is all to do with air velocity, and cooler efficiency
A puller fan can only "pull" so much air (based on a atmospheric pressure) being 14.7psi. So the fan can really only move air thru the cooler at a speed to which it can enter it.
A pusher fan, of course, can blow as much air as the blades will allow.
When a pusher fan is working hard, it creates a "cool" area on the cooler approx the same outside diameter as the fan blades-but leaves the center and outer corners with little or no air movement.
A puller fan operates at relatively slower air velocities, but the air has a tendency to flow over most of the surface area of the cooler-creating a better cooling radiator. Also, with the evenly distributed heat load on a puller fans cooler, there is less stress in the cooler, prolonging its life.
The final benefit of a puller fan is that the dirt/debris that is pulled into the cooler is on the side opposite to the fan blades & motor-making cleaning a breeze!! (Pun intended)
A puller fan can only "pull" so much air (based on a atmospheric pressure) being 14.7psi. So the fan can really only move air thru the cooler at a speed to which it can enter it.
A pusher fan, of course, can blow as much air as the blades will allow.
When a pusher fan is working hard, it creates a "cool" area on the cooler approx the same outside diameter as the fan blades-but leaves the center and outer corners with little or no air movement.
A puller fan operates at relatively slower air velocities, but the air has a tendency to flow over most of the surface area of the cooler-creating a better cooling radiator. Also, with the evenly distributed heat load on a puller fans cooler, there is less stress in the cooler, prolonging its life.
The final benefit of a puller fan is that the dirt/debris that is pulled into the cooler is on the side opposite to the fan blades & motor-making cleaning a breeze!! (Pun intended)
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