Opinions on electric fans and shrouds - 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 > General Discussion> Hotrodders' Lounge
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-28-2004, 12:51 PM
Registered User
 
Last wiki edit: Mopar tapered axle rear brake conversion
Last journal entry: What I'm doing now...
Last photo:
Join Date: Jan 2002
Posts: 4,267
Wiki Edits: 49

Thanks: 0
Thanked 5 Times in 5 Posts
Opinions on electric fans and shrouds

I had planned to run a Spal 16" electric "S" blade puller fan (2200 CFM) with a shroud but I don't have enough room between the water pump pulley and the radiator to fit both the fan and the shroud.

I can do one of the following:

1. Omit the shroud and just use the Spal 16" electric fan (puller).

2. Modify the shroud and run an 18" mechanical fan.

3. Omit the shroud and run dual 11" electric puller fans (2800 total CFM).

This isn't a real high performance installation. 343 cu. in., 8.5:1 compression, single 600 Edelbrock, muscle car cam, dual exhaust and air conditioning.

I'm looking for trouble free operation and I don't want to worry about overheating on summer days in heavy traffic.

I know which way I'm leaning but would like some second opinions.

Thanks

Centerline

    Advertisement

Last edited by Centerline; 05-28-2004 at 03:35 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-28-2004, 03:21 PM
Member
 

Last journal entry: JB's 37 Pickup
Last photo:
Join Date: Oct 2002
Location: Smoky Mountains
Age: 76
Posts: 2,358
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
CL, I'm running a 2700 CFM 16" fan on my 383 powered PU. A shroud is not needed because the fan itself has a mini shroud and it is installed so close to the rad. No overheating problems because I have a big Griffin rad with lots of coolant capacity, a 17 psi cap, and a thermostat for the heavy duty operation. I run the electric because I do not have the room for a shroud or a belt driven fan. It is my understanding that one big fan is better than two smaller fans and a puller (one installed behind the radiator is more efficient than a pusher.

The not so good news is the big fan draws a bunch of amps and proper wiring for that reason has been covered very well in the Electrical Forum.

Trees
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-28-2004, 03:33 PM
Registered User
 
Last wiki edit: Mopar tapered axle rear brake conversion
Last journal entry: What I'm doing now...
Last photo:
Join Date: Jan 2002
Posts: 4,267
Wiki Edits: 49

Thanks: 0
Thanked 5 Times in 5 Posts
I'm running a PRC aluminum radiator so coolant capacity shouldn't be a problem. The only problem with running the Spal 16" puller is I have to run it high on the radiator core to clear the water pump. With the dual fans I can run one high and one low.

I had the feeling that a shroud wasn't really needed with electrics for the same reason you mentioned.

Thanks for your input.

Centerline
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-28-2004, 03:37 PM
willys36@aol.com's Avatar
Hotrodders.com Moderator
 
Last wiki edit: How to rebuild a Rochester Quadrajet 4MV carbureto...
Last journal entry: How to change auto shift timing on 200R4
Last photo:
Join Date: May 2002
Location: Bakersfield
Posts: 8,393
Wiki Edits: 21

Thanks: 1
Thanked 10 Times in 8 Posts
I vote for the mechanical fan w/ shroud.
Reply With Quote Quick reply to this message

Recent Hotrodders' Lounge 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:
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



All times are GMT -6. The time now is 02:09 PM.


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.