Radiator Temperature Chart
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Radiator Temperature Chart
I am trying to locate the best position for an electric fan. Obviously where the hot coolant enters the radiator will be the hottest, but considering the flow of the coolant down to the return hose, which areas are the hottest and would benefit most from having electric fan driven air flow?
Using the chart below, and a scale of 1-8, which sectors are the hottest?
Using the chart below, and a scale of 1-8, which sectors are the hottest?
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
MY advice.....mount that fan with about a 2" space from the shroud to the rad core, and fill in around it so the plenum created by fan shroud and COMPLETE RAD CORE is covered 100% tightly.....I bent aluminum flashing, and some thicker aluminum parts/L angles from HD/Lowes to extend from rad mounts brackets...side to side, tie the fan to that, and then from fan shroud with the aluminum....I did it all in an afternoon on the driveway one Saturday....took the whole thing except the a/c grill outta there, for ease of assy.....if I can do it with Spals, you can do it with a single fan.....mucho easier than it looks....
Thread Starter
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Yeah, I was just gong to center it, but I have a little room to work with, and my transmission cooler fan is on the driver's side. I can either go middle, passenger side, or overlap the transmission cooler fan.
I was just thinking I may get an advantage if I position the fan to pull air through the hottest part of the radiator.
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
MY advice.....mount that fan with about a 2" space from the shroud to the rad core, and fill in around it so the plenum created by fan shroud and COMPLETE RAD CORE is covered 100% tightly.....I bent aluminum flashing, and some thicker aluminum parts/L angles from HD/Lowes to extend from rad mounts brackets...side to side, tie the fan to that, and then from fan shroud with the aluminum....I did it all in an afternoon on the driveway one Saturday....took the whole thing except the a/c grill outta there, for ease of assy.....if I can do it with Spals, you can do it with a single fan.....mucho easier than it looks....
If it's the Mark fan, then perhaps you can mount it in the original GM shroud by cutting and reglassing.
BTW
Somewhere I have the test results of aluminum and copper rads broken into quandrants like that and the single row aluminum rads show very little differnce in the quads whereas the copper ones showed the centers and being coolest.
Le Mans Master
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Depending on what year Corvette you have...
you might be able to cover the whole dang radiator. I installed a Summit Radiator, ~28" by ~19', and my Mark VIII fan fit perfectly over the core.....if it had been my original radiator it would have covered even more.
Some pics of original installation below: (I've cleaned it up some since then)
http://forums.corvetteforum.com/show...=mark+viii+fan
Some pics of original installation below: (I've cleaned it up some since then)
http://forums.corvetteforum.com/show...=mark+viii+fan
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
practically, installing a good shroud should do more than fan location. i like the shrouds that have flaps that open when cruising.
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