Any thoughts on electric Cooling fans?

Try this, different thinking. It fits where it fits. So, on the back side of the radiator, why does it have to line up with the water pump hub? The fact is it doesn't. the electric fan can be offset. Now, doesn't that open up new areas to put it?
And, Summit sells a thermostic switch that can also be used to manually turn the fan on instead of the automatic thermostat. So, more custom soutions are available. You can operate the fan if needed even earlier.

 

+1 .Well said.

 

Hi Bob, Roddster,
Did I miss something in the original post on the location of the electric fan?
He was asking about putting the fan on the outside of the radiator, specifically mentioning the lower front as an example.
I've wondered about the same issue he mentioned about an electric fan causing issues when that air is pushed thru the radiator into the engine mounted fan. would there be airflow issues? I could have used an extra fan at SAAC38 during the second open track session Friday when oil was dumped. Sitting on the grid I saw my temp gauge going up and up and.....

 

I read and understood what the request was. But, I figured that this usually comes from the electric fan motor bumping the water pump hub. that was all.
Bob G might have a different answer.

 

For sure, I could see that possibly happening if the electric fan was on the inside of the radiator. The distance from the hub to the fins does not leave a lot of wiggle room. Any thoughts on my concern of too much air going through the radiator from the electric and hitting the stock fan trying to pull all that air. I'm not sure if cavitation is the right word to use... I'd love to keep the stock fan and have the electric as a backup for hotter areas and getting stuck in stop and go traffic.

 

The air flow disturbance by a electric fan whether being pushed or pulled should not be a detrimental issue as long as the air flow is going the same direction

 

The air flow disturbance by a electric fan whether being pushed or pulled should not be a huge detrimental issue as long as the air flow is going the same direction There is ideal placement and less ideal placement. Some situations don't allow for ideal placement.

 

Thanks Bob. As always your help and insight is appreciated.

 

this issue has been covered many times in the past so you may be able to do a search. Many times the high running temp of a performance engine in one of our cars is aggravated by a overbore of the engine of 30 over or more . A good strategy is a combination of things . 4 core rad, fan shroud, and good tested cap, extra cooling fans, water wetter type products, 160-180 "high flow" (I am sold on 160), proper timing / fuel adjustment and good fuel. These are some of the most important things in my book .Others may have a different way.