bmeaggie
Member
Just to put it out here.........................
Outside of the advent of the 7-blade cooling fan on the 13-14 GT500 cooling fan to improve low speed cooling vs the 6-blade cooling fan on the OEM stock unit, there is another improvement on the 13-14 GT500 unit that is seeming to be overlooked........
Look at the picture of this fan thru the link that bmeaggie provided in post #37 & you should notice the set of trap doors.....2 on each side of the fan shroud in the lower section.......... These are not present on the OEM cooling fan shroud on the 05-10 & 11-14 non-GT500 S197 cars.
This is where Ford found that w\ the stock OEM cooling fan design when at speed airflow thru the lower 15%-20% of the radiator (radiator section below the lower hose outlet) gets somewhat impeded due to air oscillation in this area while the cooling fan is windmilling thus reducing some overall radiator cooling capacity so Ford engineers designed these trap doors into this 13-14 cooling fan shroud to alleviate this issue by giving the air in this section another way out of the shroud instead of going thru the fan so the lower 15%-20% of the radiator's cooling capacity can be fully achieved at speed but will close up & reseal the shroud to alleviate air recirculation back into the shroud so the 7-blade cooling fan can retain maximum air draw thru the radiator\condenser\intercooler at low speeds.
It is these trap doors along w\ the 7-blade fan that gives this 13-14 GT500 cooling fan assembly (M-8C607-MSVT) it's superior overall cooling advantage vs the OEM design.........
After all they were trying to keep a 5.8L 662hp SC'd 4V Trinity Modular V8 cool using the same OEM sized radiator dimension-wise....... With the 4.6L 3V\Coyote Modulars this wasn't considered to be an issue cooling wise........but w\ this 13-14 GT500 cooling fan assembly installed in tandem w\ a 4.6L 3V or even a Coyote you will be able to get the absolute best airflow\cooling capability from a fan\shroud assembly on these 05-14 S197's AND retain Ford OEM fit\design.
A win-win scenario IMHO.
This Ford M-8C607-MSVT cooling fan assembly IMHO is tailor made for corner carvers as well as FI...........if getting maximum cooling capacity from your radiator is desired, whether you're using the OEM radiator or an aftermarket 1.
1 more thing to know.......
If you're planning to install this 13-14 GT500 cooling fan in a 05-10 S197 w\ the hydraulic power steering reservoir still mounted on the cooling fan assembly just know that you will need to do a little trimming on a section of shroud reinforcement to allow the reservoir to properly mount to it as this assembly was designed for S197's that came factory equipped w\ EPAS steering racks. Other than this it is plug & play. 11-14 is fully plug & play as all come equipped w\ EPAS steering so no modding is necessary.
Not trying to sell it, just pointing out all the improvements.....................
Ha ha thanks... I’ve always wondered what those little doors were for!