Yep, a shroud allows air to be drawn through the entire core, not just where the fan is located. But that setup did keep my nitroused 347 nice and cool...
d@mn... it can cool a nitroused 347 but not a modified 289? what the ####... excuse my language but hey... I've been thinking about making a shroud but what I could make wouldn't draw through the entire core just around the mounting bracket using some thin aluminum sheet, cut a strip and make a ring around where the mounting bracket goes to the radiator... just to focus the air draw through the radiator instead of the ends of the fan doing nothing more than causing turbulance... any advice of where to get a that would work on this fan? thanks.
http://www.jegs.com/p/JEGS/JEGS-Fan-Shrouds-Fan-Shroud-Kits/1040685/10002/-1 those shrouds should do the trick.
Summing Up Hi All, This is great thread. If I have read everybody's comments correctly, the following should be observed: (1) Run the proper thermostat temperature - 180 degrees. (2) Have the necessary radiator capacity - bigger the better within reason. (3) A high capacity water pump may be in order. (3) Run a shrouded electric cooling fan with thermostatic controls. (4) You might wish to add "Wet Water" to your coolant. (5) Change and RECYCLE your engine's coolant from time to time. And yes, if you pour the ethyl glycol down the toilet, it will be removed in the water treatment plant. But, it decrease the life of the plant's filtration materials. Do not pour it into a storm sewer. Less than a thousand bucks spent on your cooling system first, will protect the rest of your engine and its expensive internals. I know it is not a very sexy way to spend money, but it is sensible and definitely pays off in the long run. Regards, David
When I was working on my sister's 90 Jeep with the enclosed coolant system I looked at the water wetter in the parts store to try and bring down the temp of the jeep. The directions said it was not to be used with glycol or any other coolant/antifreeze, only water so I didn't try it. Has it changed since then? This was probably 5 -6 years ago. Just wanted to bring that up in case it was true I didn't want people to waste their money. I still think water can go too fast through a system to take the heat out. Nascar doesn't use thermostats from what I am told but do use restrictors of different sizes based on the outside temp. I understand about needing a thermostat to bring the temp up to operating temp and help to keep it there. I also think you need at least 180* for the best efficiency and wear protection clint
