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09-26-2007, 10:03 PM
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Shroud with or without louvers?
Most shrouds I see do not have the louvers on them. Some I see, do have the louvers on the shroud. On another board I saw someone go with the louvered shroud and the other members said it wasn't correct.
So which is better or correct? 
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09-26-2007, 10:17 PM
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Quote:
and NEVER saw a factory installed shroud with louvers either. 
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09-27-2007, 04:47 AM
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What would be the object of louvers? Deuce is right. It defeats the purpose.
454 RATTLER
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09-27-2007, 05:10 AM
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Louvers on a shroud are strictly for looks and the lessen the effectiveness of the shroud.
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09-27-2007, 12:02 PM
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I assume we're talking about a radiator fan shroud here, in which case I'll echo what everyone else is saying. The whole point of a fan shroud is to ensure that all the air being moved by the fan is going through the radiator. If you add louvers to the shroud, you're defeating that function.
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09-27-2007, 05:32 PM
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OK, that's what I thought.
So my next question then is, why do all the Northern Radiator shrouds have louvers? They actually went from no louvers to louvered. If you take a Northern Radiator part # you might be able to find the original pictures (no louvers), but all the new pics of the same part # have louvers. Baffles me because I want to purchase a non-louvered shroud but cannot seem to find my size so I guess I will be going custom made.
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09-28-2007, 01:34 AM
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Ok, Here's a stupid question, but newertheless:
Are you sure they are "standard louvers" and not some kind of "louvers" that tighten up when the fan start and make negative air pressure inside the shroud? Kind of those ventilators on the bathroom or kitchen with electric fan. Just wondering...
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09-28-2007, 08:42 AM
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Quote:
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10-07-2007, 11:21 PM
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Yes, standard louvers, not movable or a flap.
That's what I thought, they have no clue what they are selling.
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10-08-2007, 11:41 AM
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Well. for me it will be a home made shroud anyway.
Maybe with flaps.
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