Quote:
Originally Posted by motordr
Do some of these fans impede airflow when they are not running? I am a bit concerned about continuous amperage draw, but can live with it when stuck in traffic. Some fans draw only about 5 amps, are they any good? How much power does it take to pull air through a recorded 32 Ford rad?
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In researching what type of fan (puller vs pusher) to use the consensus of opinion seemed to indicate that a pusher fan would tend to restrict air flow at higher driving speeds. That and the fact that the use of a fan shroud in combination with a puller fan concentrates air flow forcing more thru the core convinced me that a puller is the way to go. The topic of electric cooling systems has come up on the HAMB. I would suggest you search the threads there as some of your questions might have answers.