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Author Topic: Looking for fan shroud ideas.  (Read 501 times)
elliskev2
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Looking for fan shroud ideas.
« on: July 05, 2008, 11:29:50 AM »

Well, I got my car out for the around the block test drive. I'm getting some overheating...Running an electric fan.
I need to come up with some ideas for a shroud design. Any suggestions or pics?

Thanks to  bbd sign

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ucdcrush
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Re: Looking for fan shroud ideas.
« Reply #1 on: July 05, 2008, 11:51:59 AM »

What kind of fan are you using now, and how is it setup, right against the radiator?

Also, what kind of radiator are you using and what size? Northern sells some universal type shrouds for use with electric fans and their aluminum radiators.
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elliskev2
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Re: Looking for fan shroud ideas.
« Reply #2 on: July 05, 2008, 12:26:59 PM »

The fan is a 16" Perma-cool, est. cfm 2000. It is mounted on the Rad. The Radiator is 27.5 x 19 Alum from Summit.

Here is some pics


* baby 004 (440 x 340).jpg (22.71 KB, 440x293 - viewed 293 times.)

* baby 001 (440 x 340).jpg (26.92 KB, 440x293 - viewed 292 times.)

* baby 003 (440 x 340).jpg (21.66 KB, 440x293 - viewed 292 times.)
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DJVCuda
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Re: Looking for fan shroud ideas.
« Reply #3 on: July 05, 2008, 12:41:36 PM »

a shroud will definately help - figure the fan you have is pulling a little more then half of the fin area on that radiator... thats not gonna cut it when there is no air flow,

I made a few of these, for mechanical fans, it did the trick!




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PureGTS
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Re: Looking for fan shroud ideas.
« Reply #4 on: July 05, 2008, 09:09:01 PM »

It's times like this I wish I knew how to use a TIG. I guess I'd buy one too if I knew how to use it properly. Unfortunately the cost of the MIG aluminum spool kit is as much as a TIG set up so I just don't see the point. *sigh*
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75Dart440
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Re: Looking for fan shroud ideas.
« Reply #5 on: July 06, 2008, 11:36:25 AM »

a shroud will definately help - figure the fan you have is pulling a little more then half of the fin area on that radiator... thats not gonna cut it when there is no air flow,

I made a few of these, for mechanical fans, it did the trick!

That's exactly the type of shroud I need!  Got any extra's laying around!!???   lol bash
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DJVCuda
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Re: Looking for fan shroud ideas.
« Reply #6 on: July 06, 2008, 12:50:52 PM »

i've made a few  - mostly for mechanical fans but I need alot of measurements as no 2 are the same!
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elliskev2
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Re: Looking for fan shroud ideas.
« Reply #7 on: July 07, 2008, 08:37:18 PM »

Thanks DJV...that will help.   drag tree
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Pro Street dart
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Re: Looking for fan shroud ideas.
« Reply #8 on: July 10, 2008, 09:43:18 PM »

DJVCuda,

Cooling problems here too. The POS dual Spal electrical fans ran hotter than the mechanical fan. I can take measurement off the Spal shroud and measure fan offset. Trying to cool these things are a nightmare.


* 004.JPG (61.7 KB, 528x396 - viewed 180 times.)
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Re: Looking for fan shroud ideas.
« Reply #9 on: July 10, 2008, 09:56:25 PM »

Has anyone ran into the problem of too much water flow? I have a HV water pump. Thing is it's heating up on the highway too.
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75Dart440
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Re: Looking for fan shroud ideas.
« Reply #10 on: July 10, 2008, 11:16:04 PM »

Mine really needs a shroud.....but I took it out on a 7 mile jaunt on the back roads this evening.  Air temp was around 80 degrees.  I have a HV Milodon water pump and 18 inch flex fan on the car.  Alum. griffin radiator.  With a stewart 180 thermostat it runs 170-180 going down the road.  I let it idle for 10 min. in the driveway and it 185.  Took it back down the road and it immediately dropped to 170-180 again.

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Re: Looking for fan shroud ideas.
« Reply #11 on: July 13, 2008, 05:27:42 PM »

Guy's , don't hold your breath waiting for DJVCuda to make you a shroud.  I  Pm'd him several times at Moparts for a shroud and never got a response.  Roll Eyes

Apparently he does not want to make anymore.
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PureGTS
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Re: Looking for fan shroud ideas.
« Reply #12 on: July 14, 2008, 07:21:53 PM »

That's a shame. A few "sweaties" that can weld and a guy could have his own custom shroud business.
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75Dart440
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Re: Looking for fan shroud ideas.
« Reply #13 on: July 14, 2008, 10:38:26 PM »

Oh well......guess I build one myself when time permits.
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jmac81d
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Re: Looking for fan shroud ideas.
« Reply #14 on: July 15, 2008, 05:46:44 PM »

I used a guy in Maryland, Mafaffey Motorsports, he builds custom fans shrouds and they are a work of art. I cannot figure out how even makes them compound curves etc. all TIG welded. Down load a preprinted form to log in your dimensions and fax it to him, follow up with a phone call to discuss details and two weeks later you will be very pleased with what you get. Mine was custom built for a Northern alloy rad. with a MP Performance belt driven 5 blade fan and clutch. I will post pictures if I can figure out how to.   
Fits perfect and the shroud hand polished like a mirror.      "mafaffeymotorsports.com"  He has a great web site check it out!
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bOb shingler
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Re: Looking for fan shroud ideas.
« Reply #15 on: July 15, 2008, 06:57:13 PM »

pop rivits will work to put it together. then if your not happy with the looks take it and have it tig welded.
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DJVCuda
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Re: Looking for fan shroud ideas.
« Reply #16 on: July 18, 2008, 09:43:00 PM »

Guy's , don't hold your breath waiting for DJVCuda to make you a shroud.  I  Pm'd him several times at Moparts for a shroud and never got a response.  Roll Eyes

Apparently he does not want to make anymore.

we sent eachother emails back and forth - i need more measurements from you.
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