Shroud with or without louvers? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> General Rodding Tech
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-26-2007, 10:03 PM
Registered User
 
Join Date: Sep 2006
Location: Northern, IL
Posts: 41
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
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?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-26-2007, 10:17 PM
Deuce's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Choosing a trailer
Last journal entry: Jan 13 2013
Last photo:
Join Date: Aug 2002
Location: Deuceland USA
Age: 66
Posts: 5,657
Wiki Edits: 6

Thanks: 0
Thanked 9 Times in 9 Posts
Quote:
Originally Posted by jhilb
Most shrouds I see do not have the louvers on them.

So which is better or correct?
It would seem to me that louvers in a shroud would be defeating the purpose of a shroud. I have shrouds on both my 32 Fords ... and no louvers in them ...
and NEVER saw a factory installed shroud with louvers either.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-27-2007, 04:47 AM
454 Rattler's Avatar
NEVER SATISFIED !!
 
Last photo:
Join Date: Sep 2006
Location: Eagle River WI.
Age: 70
Posts: 864
Wiki Edits: 0

Thanks: 2
Thanked 33 Times in 32 Posts
What would be the object of louvers? Deuce is right. It defeats the purpose.

454 RATTLER
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-27-2007, 05:10 AM
Henry Highrise's Avatar
Lost in the 60's
 
Last wiki edit: Removing stuck fasteners Last photo:
Join Date: Dec 2001
Location: Dixieland
Age: 69
Posts: 15,189
Wiki Edits: 4

Thanks: 0
Thanked 10 Times in 9 Posts
Louvers on a shroud are strictly for looks and the lessen the effectiveness of the shroud.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-27-2007, 12:02 PM
Registered User
 
Last wiki edit: Wheelbase database Last photo:
Join Date: Jan 2007
Location: Virginia
Posts: 3,517
Wiki Edits: 1

Thanks: 6
Thanked 145 Times in 132 Posts
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.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-27-2007, 05:32 PM
Registered User
 
Join Date: Sep 2006
Location: Northern, IL
Posts: 41
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
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.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-28-2007, 01:34 AM
staleg's Avatar
Registered User
 

Last journal entry: Hand brake
Last photo:
Join Date: Dec 2005
Location: Norway - Europe
Age: 47
Posts: 778
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
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...
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-28-2007, 08:42 AM
Registered User
 
Last wiki edit: Wheelbase database Last photo:
Join Date: Jan 2007
Location: Virginia
Posts: 3,517
Wiki Edits: 1

Thanks: 6
Thanked 145 Times in 132 Posts
Quote:
Originally Posted by jhilb
So my next question then is, why do all the Northern Radiator shrouds have louvers? ...
Because neither the seller nor the buyers of these parts understand how they work.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 10-07-2007, 11:21 PM
Registered User
 
Join Date: Sep 2006
Location: Northern, IL
Posts: 41
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yes, standard louvers, not movable or a flap.

That's what I thought, they have no clue what they are selling.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 10-08-2007, 11:41 AM
staleg's Avatar
Registered User
 

Last journal entry: Hand brake
Last photo:
Join Date: Dec 2005
Location: Norway - Europe
Age: 47
Posts: 778
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Well. for me it will be a home made shroud anyway.
Maybe with flaps.
Reply With Quote Quick reply to this message

Recent General Rodding Tech posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Aluminum Rad or Home made fan shroud? sandiegopaul Engine 18 06-14-2005 02:10 PM
electric fan - no shroud? Blob Engine 11 02-09-2005 08:29 PM
louvers to the hood..good idea? TVR383 Engine 3 10-04-2004 07:11 PM
Fan Shroud Question Jag Daddy Engine 1 02-02-2004 05:28 AM
Radiator fan shroud Charles F. Smith Engine 5 10-02-2003 07:40 PM


All times are GMT -6. The time now is 11:19 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.