you will want to keep your mechanical belt driven fan. i haven't found much that can move as much air as it does, and it costs you MAYBE 2 horsepower on the dyno, if that. The only thing that would come close to what that fan moves is maybe two spal fans @ 100.00 each. So no, the discount auto fan will not do it for you.
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Advocate for the People's Republic of Awesome
rest in peace tim.