i want to wire my electric fan to turn on, on a certain degree How would i do that?

 

get a fan controller. I recommend the flex-a-lite controller #31165.

 

When I set mine, I had to drive it first at a lower setting, then adjusted it up from there until I got it to come on when it is actually needed and not too soon. Mine is of course an adjustable t-stat from Advance Auto Parts and was about $30. It doesn't have any numbers on it to determine what "temperature" it is set at, but is very simple to adjust. I forget the temperature range it can be adjusted in, but if you go this route, it does say it on the package. Something to keep in mind,... You may want to run the fans off of a rely and have the t-stat control the relay. That way the load will be on the cheaper relay and not the t-stat. I always run any accessories that have any noticeable load on them through relays. The relays are much more reliable in my experience than allowing the full amperage to run through a switch, or in this case, the t-stat. Have you ever had a switch melt because of the load running through it? Even though the switches are rated for the amperage, they are not heavy duty and will eventually wear out fairly sooner than relays because they are usually the weakest link in the circuit. Also, NEVER run any circuit w/out fused overcurrent protection!!! Otherwise, someday you may be the guy at the side oif the road with his melted, molten, charred pile of what used to be his ride.

 

what if i buy a gauge that and connect the fan with a relay on to the gauge that is preset to a certain temp?

 

You certainly could do that, but without knowing what temp you want it to come on at, you may end up wishing you had an adjustable one so you can fine tune it to your truck's needs. An adjustable one would be better in some instances where maybe you have to do more stop-and-go driving in hot weather than normal, and your truck starts to run hot. If it is adjustable, you could adjust it to come on sooner to help keep it running cooler, then just put it back when you don't need it to come on sooner any more. I always like to have options/adjustability whenever possible so I can always accommodate different needs as they arise without having to spend more money.

 

That actually does sound like a good idea but i want to know here to connect the wires and before i but the adjustable tsat i want to try it out with the original, do u have a link to where i can see the connection in detail?

 

Did your truck come with an electric fan setup from the factory? If it didn't, and I doubt it did, then your guage isn't going to help you with sending a signal back to the fan relay to turn it on. A standard guage only reads what the engine coolant temperature is at the engine where it is measured; in the intake manifold if I'm not mistaken. There wouldn't be anything in it to send a signal to a relay for the fans to operate. This is why you will need to install a t-stat relay for these fans. If you don't want to spend the money on an adjustable t-stat, you could hook your signal wire for the relay to a feed that is only on when he ignition is on, and the fan circuit fused from the battery, but the fans will run 100% of the time the truck is turned on, running or not. This is not my recommendation on how to do it, but it would work. Your fans won't last you near as long that way and it wastes power.

One other thing I neglected to mention earlier that I always do is to install a lit override switch in the signal circuit. That way if for whatever reason I need to turn off the fans, I can just flip a switch on the dash and it will drop the relay.

 

http://www.jaycorptech.com/showprodu...;categoryid=19

stock viscous fan becomes 'locked' at 220-230 degrees F air temperature

 

all this sounds good. Been tinking with this idea for a little bit as i could cool down the engine with out having it on and I am pretty sure taht you can get some better HP/gas mialage as there would be less rotational mass loading on the engine. Also you would have a heck af alot more rrom under teh hood to work on the engines. However, is there a stock fit electric fan out there? If i get a electric fan i don't want to have to start cutting and adding the duct tape and JB to get it to stay

 

be knowledgeable

http://www.aaroncake.net/rx-7/efanmyth.htm