a blowhole without a fan?

I am thinking about making a blowhole in my case that houses an rather old amd t-bird but the problem is that i dont have any extra fans laying around the house and my dad wont let me buy anymore fans, so is it posible to just cut out a blowhole and not have a fan on it? Would hot air still vent out of the case like that?

It will, but it wouldn't be nearly as effecent. Probably to a point where it wouldn't be worth cutting up your case unless you plan on getting a fan later down the road.

Would hot air still vent out of the case like that?

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Theoreticly yes...It would be a passive blow hole vent..A 120mm hole would probably work best..Use a CD as your templet..



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wups
disregard my last post

i thought you meant duct.