SuperModulation Model SFAN4500 Electric Cooling Fan (efan).
The first efan kit designed for the Chevy Colorado / GMC Canyon / ISUZU / Holden / Hummer H3 vehicles.
Fan Specifications:
* Speed - 1500 to 4500 CFM's, highest rating on the market.
* Low power consumption, normal driving conditions - 186* to 205*. Low speed = 4 to 13 amps, Hi speed = 15 to 35 amps.
* Automatic resettable circuit breaker included.
* Custom HIGH AMPERAGE PWM controller specifically programmed to match the I4, I5 and V8 temp curves.
* Includes all brackets, hardware and screws.
* Light weight and durable black aluminum fan frame.
* Drop in design.
* No cutting, No drilling.
* Pre-wired, Only 4 electrical connections that plug/bolt in to your fuse box.
* Main Power wire harness is 10 gauge wrapped in wire loom for durability.
* Low noise. Normal operation is 55 dBa to 85 dBa at 10 ft. away, hood closed.
* Installation with the proper tools should take less than 2 hours.
The Supermodulation Model SFAN4500 efan test fixture.
Each efan gets tested and calibrated for assured quality control.
All you have to do is install it, wire it and forget about it!
This video demonstrates a typical cold to warm-up conditions then to severe hot conditions.
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Fits ALL years Chevy Colorado, GMC Canyon, H3 Hummer, I5 3.5L/3.7L Motors
Many write-ups have claimed 17HP improvement from a electrical fan but my Dyno butt says realistically about 10HP.
The fuel improvement isn't were you think it is.
Since the OEM fan has to work more at idle or lower RPM's to maintain cooling.
The MPG gain is at city driving more than highway.
Here's a simple formula to justify the replacement of the mechanical fan.
For example let say the mechanical fan needs 10 HP to function.
A efan running at full speed consumes 20 amps @ 14.4v = 288 watts.
With out going in to full detail let's say for every 1 HP equals 500 watts of power, don't assume 745.7 Watts is a realist HP to watts conversion. What about mechanical loss? belt etc..
Your gasoline engine has to produce 0.6 HP to power a efan running at 20 amps @ 288 watts.
Many write-ups have claimed 17HP improvement from a electrical fan but my Dyno butt says realistically about 10HP.
The fuel improvement isn't were you think it is.
Since the OEM fan has to work more at idle or lower RPM's to maintain cooling.
The MPG gain is at city driving more than highway.
Here's a simple formula to justify the replacement of the mechanical fan.
For example let say the mechanical fan needs 10 HP to function.
A efan running at full speed consumes 20 amps @ 14.4v = 288 watts.
With out going in to full detail let's say for every 1 HP equals 500 watts of power, don't assume 745.7 Watts is a realist HP to watts conversion. What about mechanical loss? belt etc..
Your gasoline engine has to produce 0.6 HP to power a efan running at 20 amps @ 288 watts.
Supermodulation;Many write-ups have claimed 17HP improvement from a electrical fan but my Dyno butt says realistically about 10HP.
The fuel improvement isn't were you think it is.
Since the OEM fan has to work more at idle or lower RPM's to maintain cooling.
The MPG gain is at city driving more than highway.
Here's a simple formula to justify the replacement of the mechanical fan.
For example let say the mechanical fan needs 10 HP to function.
A efan running at full speed consumes 20 amps @ 14.4v = 288 watts.
With out going in to full detail let's say for every 1 HP equals 500 watts of power said:
Many write-ups have claimed 17HP improvement from a electrical fan but my Dyno butt says realistically about 10HP.
The fuel improvement isn't were you think it is.
Since the OEM fan has to work more at idle or lower RPM's to maintain cooling.
The MPG gain is at city driving more than highway.
Here's a simple formula to justify the replacement of the mechanical fan.
For example let say the mechanical fan needs 10 HP to function.
A efan running at full speed consumes 20 amps @ 14.4v = 288 watts.
With out going in to full detail let's say for every 1 HP equals 500 watts of power, don't assume 745.7 Watts is a realist HP to watts conversion. What about mechanical loss? belt etc..
Your gasoline engine has to produce 0.6 HP to power a efan running at 20 amps @ 288 watts.
James was just trying to Keep It Simple. Yes 1 HP is equal to 745.7 watts. With that being said and using James precise butt dyno, {[(10 HP * 745.7 watts/HP) - 288 watts] / 745.7 watts/HP} = 9.6 HP gain!
The point to my calculation was to demonstrate regardless if it was 1000 watts to 1 HP or 500 watts to 1 HP that there is a potential gain by doing this upgrade.
The 746 watts to 1 HP formula is if this was a perfect world and there wasn't a loss in energy.
The power plant, known as the alternator is a very inefficient and a very crude design to produce electrical power.
Since the alternator relies on variable mechanical energy rotation of the armature.
The magnetic field (EMF) collapse and energy loss in heat across the rectifiers contributes to the loss's in the power to HP conversion.
In my real world experience I have found the conversion to be about 500 to 550 watts on a GM S12 alternator.
The point to my calculation was to demonstrate regardless if it was 1000 watts to 1 HP or 500 watts to 1 HP that there is a potential gain by doing this upgrade.
The 746 watts to 1 HP formula is if this was a perfect world and there wasn't a loss in energy.
The power plant, known as the alternator is a very inefficient and a very crude design to produce electrical power.
Since the alternator relies on variable mechanical energy rotation of the armature.
The magnetic field collapse and energy loss in heat across the rectifiers contributes to the loss's in the power to HP conversion.
In my real world experience I have found the conversion to be about 500 to 550 watts on a GM S12 alternator.
:high5:
re: SuperModulation EFAN Model SFAN4500 Electric Cooling Fan Kit, Installation & Prices
Without revealing any trade secrets, what redesigning / value engineering are you doing? Will the controller still function the same without any compromises? Any idea of expected price range? I am also very interested! Saving my pennies and swimming in wishing wells picking up change all across the south east.
Without revealing any trade secrets, what redesigning / value engineering are you doing? Will the controller still function the same without any compromises? Any idea of expected price range? I am also very interested! Saving my pennies and swimming in wishing wells picking up change all across the south east.
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