electric fan install, grand prix fans (done)

[matthufham]

got some fans off a 2000 GTP, they're similar for years on the 3.1 and 3.8, and shared with impalas and possibly others. I found a spec sheet of these fans with measurements, attached picture.

wiring is upper medium skill level. they're dual speed fans, and I used 3 relays as factory does. attached picture of that. i'm running the low speed off an oil pressure switch, usually used to turn on fuel pumps when the engine is running with oil pressure. the high speed i'll be activating with a thermal switch that reads coolant temp. on at a higher temp, off at around thermostat temp. for now I just have it on a toggle switch until I find the proper temperature switch.

Low speed runs 2 fans through each other. (12v in and out fan 1, and into the fan 2, then grounded. more or less a series circuit.

high speed runs 12v and ground to each fan

I have yet to make brackets to mount the fan assembly, but it'll be easy enough with the welder and some brackets I'll fab up. the main part is complete and I thought i'd share.

and a side note. the top is square, the bottom is rounded... which fits. I found though the bottom fits better on the top with the radiator hose on the driver side. so when I mount them permanently , they will be mounted upside down.

I also attached a video that shows them running, and a glance of the relay setup.


if you click the above image, this is the video I spoke of which i'm hoping will work for you, it worked when I clicked it (opened windows media player)
If the video doesn't work for you here's a link to photobucket.
http://s1304.beta.photobucket.com/us...08567.mp4.html