With the fan off it does not block air flow, the fan on puts up a wall that blocks air flow. Travelling at 60 mph drives the air through the rad faster than a fan can do it.
This is not correct, and for reasons other than what you're thinking of. Air moving through a radiator does so based on pressure differentials. I promise you that a Taurus fan has more than enough flow to generate the necessary low pressure area to draw more air through a radiator at 60mph than if you switch it off and let all of that blade surface area freewheel and help generate a higher than normal pressure area behind the radiator.
This is not correct, and for reasons other than what you're thinking of. Air moving through a radiator does so based on pressure differentials. I promise you that a Taurus fan has more than enough flow to generate the necessary low pressure area to draw more air through a radiator at 60mph than if you switch it off and let all of that blade surface area freewheel and help generate a higher than normal pressure area behind the radiator.
where are you getting your information from?. I worked with high budget race teams and tests are conducted to see what the effects are of a fan on or off at different speeds. Dive your car at 60 mph and put your had out the window and then put your hand behind your cooling fan and then you'll see which has more pressure on your hand
What type of shroud are you using for the electric fans? On my 400 I had a similiar issue when I went to electric fans. I ended up cutting a few holes in the shroud I used to mount my fan on to let air through it. At higher speeds the shroud blocked too much of the radiator. The holes helped me.
What type of shroud are you using for the electric fans? On my 400 I had a similiar issue when I went to electric fans. I ended up cutting a few holes in the shroud I used to mount my fan on to let air through it. At higher speeds the shroud blocked too much of the radiator. The holes helped me.
Well today( and all week ) it's been very hott out. Its about 97* right now so you know what kind of stress my cooling system is under. And I knew it would be beneficial to seal the radiator to the core support. But I didn't think it would make the kind of difference that it made on my car. remember the motor has under 500 miles on it, with ALL new parts. New Aluminum aftermarket radiator , roughly 31x19 inches . Have the factory chin spoiler, 180 thermostat ,vacuum advance is hooked up too, AND a working radiator cap. And even at highway speed I would have to run my electric Taurus fan or the temps would creep over 205*. Which aint too hot but more than expected for 65mph cruising.
Well I cut up some high density foam insulation and wedged it between the Rad and the radiator support on the sides and my coolant temps went down 20* to 25*. Now that is more like it!!!!!
Thanks for the replies yall...
I NEVER SAID 205 was TOO hot. I said i didn't like the fact that the temps were increasing as i drive in 65mph or so highway speeds. Usually with that much wind a motor can run WITHOUT it's rad fan, or at least with a clutch fan it will run at a much reduced speed.
Here in New Orleans I have plenty of other times to get my motor up in temp to burn off any moisture that has developed. Besides I like to give my fan a break sometime, and now that I sealed the rad to the core support my motor is running much more cool And I can run with the fan off even when it's 100* out ( on the highway only ).
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