I used the stock villager 20amp relays before. The relay rating is on constant draw in most cases and most relays can handle a larger initial pull just not sustained.
I use the delta controller now, it's in my build thread.

 

Do you guy set it up to run at 2 speeds or just one?

 

Variable speed controller with soft start, wired to high speed side (DCC controller).

Completely separate back-up system with on/off switch and 40amp relay wired to low speed side. If the main controller fails a flip of a switch and the back up system is running on low speed.

 

how do you tell the difference between the low side and high side

 

Trial and error worked for me. Take a set of jumper cable hooked up to a 12volt battery and clamp down on the fan leads and see which wire runs it faster. Note if hooked up backwards the fan will run backwards.

 

Ok I feel like a tard for asking this but I found the fan I had for my e-fan won't work. With that I decided to run the villager fan and I am having a hard time reading wiring diagrams and I am not really good at wiring. So my question is what do I need to buy to run the fan on low with the engine is running and the high on this controller http://www.summitracing.com/parts/SUM-890016/ wired to run with the engine off; then both to a on/off switch. Also do I need to upgrade the relay or anything included with the kit? Can so one give me a dumbie guide on how to wire it?

 

^^^ no... just use the 2sp by delta current control like i said earlier, do it right and do it once.

http://www.dccontrol.com/relay_controllers.htm

 

I agree, don't use a 30 amp relay kit with instant "full amps" turn on with a fan that draws more than 30 amps on start up. It might last for a while but a burnt, melted relay will eventually happen and at the worse possible time probably.

 

does this kit include everything i will need to do it right?

 

http://www.classictruckshop.com/club...h/foglites.htm

There are lots more if you google "how to wire a relay"

 

yes, but you will need to provide longer wire leads to the fan, battery and tap into the ignition. Not to mention cut the fan shroud down and bolt it to the radiator.

 

Here's another good relay basics link: http://www.bcae1.com/relays.htm

 

So a 40a fuse, bunch of wire, and a little brain. I dont know why wiring has me so nervous but it does. Stuff aint simple and can be overwhelming when you've never done it before.

 

I'd spend the extra and get the FK-55 here: http://www.dccontrol.com/constant_te...ontrollers.htm

That has all you need, good instructions, soft starts and will maintain a more constant coolant temp. I have the old FK-35 and love it, often the fan will just softly kick on and barely run. That saves juice and doesn't shock the alternator with massive draw downs and keeps from getting into an over-cooling/under-cooling on/off cycle.

 

dcc is a solid answer

 

But that won't handle both high and low

 

with the variable fan speed you won't need high and low

 

Ok but how do you wire it? Variable to a the high side and low to a switch?

 

Yes, variable controller to the high speed wiring, the controller will select the speed as needed. With that FK-55 you don't need a relay, and it comes with a fuseable link included in the harness so you don't need to worry about fusing it either. Read those instructions in the FK-55 link and see if you can handle it.

I did the low speed to a backup system with a switch but its not necessary, just kind of an anal mechanical engineering type behavior.

 

So do I just run a 12v power to a switch then to the low side? Fuse or anything else needed?