my thoughts on the fan speed and about the modulated fan speed. I'm no expert but I think a number of setups simply turn the fan on high or low, and either the fan is on low speed or high speed depending on temps. The other type is where the fan comes on at a certain speed (low) and ramps up the speed from low to high as the temps increase. As noted I believe this is based on the fans and the controller and how wired. in the past some of those fan controller were junk and were not rated properly to deal with the amp loads etc. Back when I was testing a setup I had at one time...I had one melt down (the controller). I'm sure things have improved but I would want to make sure that the fans in use (that you understood) the max amp load across both fans if using two fans , and that the controller was rated to handle both fans at max amp load and of course all the other components were also rated to deal with the max amp load too. Don't forget about A/C considerations if you are running A/C. You must have air flow across the condensor when a/c is running and not just based on temps from the coolant sensor. Some of those electric fan kits solve some of the guess work....but if doing your own...I would download the instructions from some of those kits to see what they say and parrot that as best as you can, or make it better.
FJ60 Dual Electric Fans
- Thread starter Shes Mad
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Hey all just picked up the Derale Fans with an autocoolguy pwm controller.. the shroud looks nice with the air flow holes.
Hopefully someone with air flow dynamics experience can help answer this question.
Currently the fans are set into the aluminum shroud, so much that it seems like when they are running, they will pull mainly from the circular area the shape of the fan because the fan itself has the inner plastic shroud and they will be quite close to the radiator.. I'm guessing about 3/4" away from the radiator.
I wonder if this is done because this setup needs to be fairly universal and compact despite being less efficient, or is this the most efficient way to cool down the radiator?
I'm wondering if you have the space, if it is better for the efficacy of the fan to have it protruding out the back, so that the radiator side of the fan won't be confined to sucking in primarily that circular area .. and instead can pull from the full surface area of the shroud?
It seems like an easy mod to adjust the fan to have it pulled away from the radiator face.. and i believe i have the room between my engine and radiator to do so...
any thoughts?
Hopefully someone with air flow dynamics experience can help answer this question.
Currently the fans are set into the aluminum shroud, so much that it seems like when they are running, they will pull mainly from the circular area the shape of the fan because the fan itself has the inner plastic shroud and they will be quite close to the radiator.. I'm guessing about 3/4" away from the radiator.
I wonder if this is done because this setup needs to be fairly universal and compact despite being less efficient, or is this the most efficient way to cool down the radiator?
I'm wondering if you have the space, if it is better for the efficacy of the fan to have it protruding out the back, so that the radiator side of the fan won't be confined to sucking in primarily that circular area .. and instead can pull from the full surface area of the shroud?
It seems like an easy mod to adjust the fan to have it pulled away from the radiator face.. and i believe i have the room between my engine and radiator to do so...
any thoughts?
seems to me that the concept of that fan setup is to have the fans fairly close to the radiator core. I don't see any real fan shroud in play that would in my view allow the fans to pulls air through the radiator more effectively. That is essentially a flat plane or sheet of metal with holes for the fan and holes for air to bypass at hwy speed, those rubber flaps and related holes. I guess the partial box of the fan mounts might be considered a shroud in some way. I would leave it alone and see what it does.
I think in summary the idea of that fan setup is to have the fan itself be rather close to the radiator core, I'm guessing that the install instructions say something about the proxcimity of the fans to the radiator core.
If that aluminum mount assembly fits over the majority of the radiator core then you might have a very effective setup.
I think in summary the idea of that fan setup is to have the fan itself be rather close to the radiator core, I'm guessing that the install instructions say something about the proxcimity of the fans to the radiator core.
If that aluminum mount assembly fits over the majority of the radiator core then you might have a very effective setup.
Found SPAL Replacement push or pull fans if anyone is interested .. They also have "sender" temp switches / relay kits as well ..
This is what fan I have for my 60 radiator
I missed this when it was first posted. I'll have to see if I can find CFM ratings for the Ford Contour fan assembly I have in my 62 to see how it compares to this setup. I know Derale has a good reputation so very curious on how they compare. My cooling system needs a full flush and new water pump (past due), which I'm sure will solve my summertime overheating issues on the highway, but should one of the motors in my current setup ever go, it's nice to know this is a feasible replacement. I have a PWM controller from DCControl who unfortunately seems to be long defunct now that's worked beautifully since 2007 or 2008 when I installed the fan assembly, and it's nice to see other companies offering PWM controllers for these fans as the dramatic reduction of inrush current is a huge benefit to automotive electrical systems.
@cruisermatt I have no idea what you're talking about.....
@cruisermatt I have no idea what you're talking about.....
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About what?
The countour fans are still available new FYI.
Ive been running mine for almost 5 years. I think this year they are getting replaced with current technology (modern PWM brushless)
I was referring to your post early on about people talking about things they know little about
Cool bit about the Contour fans though. Makes me wonder if they're a drop in replacement for the "old" assemblies or if there's more to it. Be nice if they're an upgrade over the brushed units as far as available airflow.
My contour fans have been installed for over 10 years with a flex-a-lite controller. They've been flawless.
Same here on the fans. Different controller but close to 15 years in now and they're still running well. Not knowing the expected lifespan of these fans' motors though has had me considering future replacement at the back of my mind. I would love to get the newer version once they're available and do a direct side by side comparison on a bench between the new and old versions.
Hey everyone. Long time lurker/seldom poster here... I just ordered this same fan setup for my 60 SBC350 combo. My dilemma is that it comes with a switch that kicks on at 185 and with a standard 180 degree thermostat it seems like the fan will be keeping the thermostat from fully opening. I understand a lower temp thermostat would solve to some degree but if optimal temp is 200-210 why does it come with a switch that kicks on too early?
I found SPAL Electric Fans & Blower Motors here. I think this will be helpful for you.
