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Re: electric fan worth it?
I'd say that you're on the right track.
I have a dual fan unit on one of my cars. I used 2 relays and 2 power supplies (2 fuses). If one fan motor fries, then there's a back-up fan. 2 is better than one, but 1 is better than none.
You could probably get by w/a 30 amp fuse to run a dual unit. I just went the extra step and wired mine in parallel.
My Biscayne has two sets of dual units (4 fans). I have it wired with 2 relays like the other car, each dual fan has its own 30 amp power feed. It works fine too.
I had a car come in the shop that the battery was welded to the hood. He installed a battery that was too tall. The battery posts melted to the bottom of the hood when he slammed it.
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