Are Electric Fans Suppose To Pull Or Push?
04-13-2008, 12:32 AM
#1
Burning Brakes
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Are Electric Fans Suppose To Pull Or Push?
When you install an electric fan in place of the stock fan, (motor side of radiator) is it suppose to pull air towards the motor, or push air into the radiator to help cool it?
Also, how many cfm does a stock clutch fan flow? I was told it was about 1250 cfm. I'm about to install a single 16" 3000 cfm electric fan in hopes of helping it cool my motor a little better. Small block 400's run a little warmer than 350's do, ........right now my 406 runs at about 200 degrees.
Also, how many cfm does a stock clutch fan flow? I was told it was about 1250 cfm. I'm about to install a single 16" 3000 cfm electric fan in hopes of helping it cool my motor a little better. Small block 400's run a little warmer than 350's do, ........right now my 406 runs at about 200 degrees.
04-13-2008, 09:55 AM
#4
Pull is better. When the fan is located in front of the rad it disrupts the the beneficial air flow that you get by driving forward. I've got a 37 Nash that did not have enough space between the motor and rad, and barely stays cool for normal driving. Can't run the a/c or drive on very hot days.
I'm working on getting a flex wedged in.
Chris
I'm working on getting a flex wedged in.Chris
04-13-2008, 01:52 PM
#5
Drifting
There are pushers and there are pullers. Pullers are the most efficient, and the recommended replacement for the water pump fan. Make sure to get fans made to use as pullers when going to electric as there are distinct differences. Make sure that the fans move enough air to provide the cooling you need, and that you seal the fan to radiator connection to create the vacuum for pulling air through your radiator.
