I had a few questions asked about the overhead cooling fan I installed in my Talon.
I mounted a 12 volt DC radiator fan on some 1-1/4" x 1-1/4" x 1/8" aluminum angle secured by pipe clamps.
I used a 12" radiator fan purchased from Amazon.
I tried a few different varieties of cushioned pipe clamps. Many did not hold the cage tubing tightly. I ended up purchasing these from McMaster Carr.
It's relatively cheap and works well.
I experimented with the distance between the roof and the suction side of the fan. You can mount it too close to the roof, and affect the fan's output. I have the suction side of the fan about 2-1/2" below the roof now.
I plan to add a second fan above the front passenger seat, and add a PWM DC motor speed controller to vary the speed of the fan.