E-fan wiring diagram

[dragogt]

I've got a t-bird fan thats going on my k2500, but I need a wiring schematic to hook everything up, I already have one of these _ http://www.summitracing.com/parts/HDA-3647/ _ and want it set up to run another fan when I get it..

I've read the threads on FSB and fallowed the links to here there and yonder; And nobody can agree on a diagram...

So lets see what ya got.........

 

[radialarm]

Here's what I did, but yours will be different!!! I would get power either from the battery or the solenoid on the fender. If you've got A/C the you need to wire it so it's on whenever the A/C is on!!!

 

[dragogt]

A/C, no fender solenoid.. (GM)

 

[Skandocious]

Aaron tell me how you want the fan to behave, any switches you will be installing, etc, and I'll draw up a custom diagram.

Mine uses a thermostatic switch to turn on the low speed, with a position on my 3 position dash switch to override it into high speed; with the remaining position used to force the fan off. My ac also forces the fan on in low speed.

 

[dragogt]

Hit a slight SNAFU,

My radiator is 34"W X 20"H tank to tank, and the fan is 22"W X 18"H Which leaves me w/ not enough room to run 2 side by side... (unless I can find a set of taurus fans) If I mount the fan in the center of the rad it leave w/ -+ 6" on ether side... The other option I have is a small 12" fan that I can mount on the side.. But idk.......

Btw rad is a cross flow....

 

[Skandocious]

Holy giant radiators Batman

I don't know if I would run 2 of these fans together unless you have a VERY strong electrical system. Even with my 130amp alternator the high speed on the fan will dip my gauge needle pretty good when it kicks on.

 

[dragogt]

This is on a diesel truck...

Biggest I've found online is a 140A "think" I currently have a 105.... I'm going to try the center mount and see what happens......

 

[Skandocious]

Might be able to get away with 1 fan and a larger custom shroud. Otherwise you might wanna look into an ambulance alternator (usually around 200amp) and run duals.

 

[dragogt]

Would defiantly like the bigger alt, I'm going to try the single but will start looking for twin taurus fans.... to replace the single....