electric fan
#19
#21
If you're referring to going with an electric fan setup on the radiator vs. the stock water pump mounted unit, here's the pros and cons as I know them:
PROS:
less strain on engine
frees up a few ponies
possible gain in mpgs
more precise control of fan engagement through electronic thermostat
CONS
not suitable for regular or heavy towing due to reduced airflow
tends to be pricey for prefab kits
So basically if you tow "light & little" an electric fan setup could get you better mpg - how long to recoup the cash outlay is quite variable. If you tow "hard & heavy" then leave the stock setup in place. Otherwise you'll probably cook your engine.
PROS:
less strain on engine
frees up a few ponies
possible gain in mpgs
more precise control of fan engagement through electronic thermostat
CONS
not suitable for regular or heavy towing due to reduced airflow
tends to be pricey for prefab kits
So basically if you tow "light & little" an electric fan setup could get you better mpg - how long to recoup the cash outlay is quite variable. If you tow "hard & heavy" then leave the stock setup in place. Otherwise you'll probably cook your engine.
The one thats for sale, is made specifically for our trucks..99-04, with dual fans, custom shroud..etc.
#22
Early to mid 90's taurus/lincoln. You will want doubles and it is best if you take advantage of the dual speed. When on high they use pretty good amperage. Usually they are mounted side by side, one higher than the other to fit. There is an abundance of them in the wrecking yards and usually are cheap. Each fan has a max of 4000 cfm if I am remembering right.
#24
Am betting that PRO / CON observations on cooling by engine-driven v electric fan are from a perspective of the fan doing double to triple duty (engine + tranny + A/C) and apologize up-front if this is not the case in everybody’s response, but in looking at signatures it appears reasonable. I only cool the SD 7.3 engine and A/C, but do tow ~8K (including steep grades every so often) in temps that hit the low 100’s during summer time where to date the OEM engine-driven fan is keeping the beast and its passengers cool, so it is always a challenge to mess with success. Questions:
> With the tranny out of play, and therefore a lighter cooling load, does this mitigate the CONs of an electric fan with regard to towing? Am sure that some will want to know more about mods on the vehicle, but this is a generic type of question for the benefit if a wide audience where the true constants are engine size and use of a clutch pedal.
> From what I am seeing in this thread, there are several ways to go with electric fan cooling and personally like the idea of minimizing single points of failure, so the Taurus fabrication and Flex-a-lite drop-in creating a push-pull configuration has appeal; couple that with some comments I am seeing where Flex-a-lite only recommends up to 18K lbs CGVW (per reference in a Dodge conversion article on off-road.com), the push-pull idea is getting even more attractive for my rig if I decide to with electric fans. Anybody have experience with push-pull cooling? Aside, the Taurus fans (as I recall seeing on a Taurus forum) have a built-in ‘lock-up’ feature of sorts to keep them from generating electricity (which I presumes avoids needing a voltage regulator on them); also sailboaters know that a locked-prop offers less resistance and turbulence than one free-wheeling.
> While on the topic of the Flex-a-lite, the SuperDuty unit looks like it comes with a controller that reads temperature from an insert at the upper radiator core (not directly from the coolant) where I am seeing other brand controllers are able to read from the OEM temperature sending unit (which I presume is reading directly from the coolant). Given the Flex-a-lite assembly appears to only come with a 1 year warrantee for the original purchaser only, (ignoring the obvious manufacturer warrantee and support issues) any thoughts or experience with running its fans using another brand controller?
> Anybody find other manufacturers offering a drop-in replacement for the OEM engine-driven fan?
Also apologize if the question of cooling just the engine via electric fan appears in other threads, but I am using the search on key words, only have a slim amount of time in the day for Internet play, and this thread seems like it is hitting the nail on the head for what I am thinking about.
> With the tranny out of play, and therefore a lighter cooling load, does this mitigate the CONs of an electric fan with regard to towing? Am sure that some will want to know more about mods on the vehicle, but this is a generic type of question for the benefit if a wide audience where the true constants are engine size and use of a clutch pedal.
> From what I am seeing in this thread, there are several ways to go with electric fan cooling and personally like the idea of minimizing single points of failure, so the Taurus fabrication and Flex-a-lite drop-in creating a push-pull configuration has appeal; couple that with some comments I am seeing where Flex-a-lite only recommends up to 18K lbs CGVW (per reference in a Dodge conversion article on off-road.com), the push-pull idea is getting even more attractive for my rig if I decide to with electric fans. Anybody have experience with push-pull cooling? Aside, the Taurus fans (as I recall seeing on a Taurus forum) have a built-in ‘lock-up’ feature of sorts to keep them from generating electricity (which I presumes avoids needing a voltage regulator on them); also sailboaters know that a locked-prop offers less resistance and turbulence than one free-wheeling.
> While on the topic of the Flex-a-lite, the SuperDuty unit looks like it comes with a controller that reads temperature from an insert at the upper radiator core (not directly from the coolant) where I am seeing other brand controllers are able to read from the OEM temperature sending unit (which I presume is reading directly from the coolant). Given the Flex-a-lite assembly appears to only come with a 1 year warrantee for the original purchaser only, (ignoring the obvious manufacturer warrantee and support issues) any thoughts or experience with running its fans using another brand controller?
> Anybody find other manufacturers offering a drop-in replacement for the OEM engine-driven fan?
Also apologize if the question of cooling just the engine via electric fan appears in other threads, but I am using the search on key words, only have a slim amount of time in the day for Internet play, and this thread seems like it is hitting the nail on the head for what I am thinking about.
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