Is it ok to hook up the fan so that it's running constantly? Would this eliminate the need for a fan thermostat, and excess wiring? Is there any downside to doing this?

 

that would defeat the purpose of having one which is to remove load off the engine when it doesn't need to be used...

 

How so?? If he removed teh stock crank fan then the motor would no longer have to turn the fan.....Granted there will be more pull through the radiator, I have a hard time thinking that it would create enough electrical pull to hurt anything...

I run a Ford 3.8 Taurus fan in my 2.2L Chevy S10 and it runs ALL THE TIME...I have no electrical problems,and the motor revs a whole lot faster now.

*edit* added word fan

 

^^^ That's what I was thinking. I know there would be a little more electrical strain of the car, but I hope to be upgrading to the FD alternator in the near future. I figure it would take the physical load off of the engine which would be more of a benefit anyways. I more less wanted this mod, to clean up the engine bay a little more as well.

 

or install a switch to manually turn it on. thats pretty simple and little wiring. just don't forget to flip it on.

 

My main e-fan runs all the time as well. It needs to.

I have a secondary e-fan (the little one in front of the rad, that comes on at 85C(185F)

 

This or there is a switch you can get from AutoZone for like $17 that is a little thermistat kinda deal...

Adj. Fan Thermostat, Auto Zone, Imperial Automotive Products (Hayden) p/n:226203, $17

That would prolly work best I think..There is a great write up for the S-10 pickups...the mounting wouldn't really apply to your application, but the wiring is the same, and I'm sure that would help you.

http://www.s-seriesforum.com/section...rticle&artid=1

Hope that helps.

 

Thanks people. But I really want to run it off of an ignition source, that way there is less chance of switches failling, or forgetting to turn it on/off. Yes I am a simpleton!!!

 

In that case I will tell you how I did it..Not necessarily the best way, but it works.....

I run mine off the fuel pump circuit...When the fuel pump cuts on it triggers the fan to come on...fan doesn't run unless the engine is running...you will want to put a small resistor inline so that you don't get any "backflow" of electricity through the pump circuit.

I personally have a 2 speed fan and the 1st speed is on ALL THE TIME, and the second speed hits when the A/C compressor turns on...great for summertime..PIA for the winter (A/C comp runs when defroster is on in my truck)

Might not be the best way like I said, but it works failry well.

 

I have my fan on constantly and it has been like that for a while and I have not had any problems with it.. I need to wire it up to my haltech though so it will switch off when not needed.

 

man, ky people are swarming this place now. just to cut in here a sec, what cfm should you have? i am trying to price out some e-fans. think i'll get two smaller and run them sequential.

 

Isn't there a clip on the front strut towers that have plugs to run and ignition wire from?

 

ya i think its actaully a diagnostics (sp?) plug

 

Not the green plug, it's a white one.......

 

That Is for AAS. Hence, Automatic Adjustable Suspension. It Is found on both shock towers. Mazda fitted these plugs on ALL 7's b'c It was convenient to do so. Obviously, all of them don't have this feature.

This plug Is great for 12 Ignition sources. With a 1/4" spade, plug Into the center pin closest to the pull tab. I use both of them, as sources, on my car.

 

Thanks "T", I'll be using it in the near future!

 

It's completely and utterly pointless. Contrary to what others have said, it does take a similar amount of engine power to run an electric fan than a mechanical fan. You don't get anything for free in this world. The power from the fan must come from the alternator, which must draw that power from the engine. The whole point of an electric fan is that it doesn't draw power from the engine when it isn't required. Once the car is up to speed there's more air being pushed through the radiator than the fan could ever suck, so running it pointless.
A manual switch is not a very clever idea because one day you will forget to turn it on. It's human nature. Get a thermoswitch for it and wire it up properly. The wiring is very simple and easy to do. This is another big no-no. Electric fans draw a lot of current (especially at start-up) so they just be run from the battery via fuse and relay like this:

 

Thanks for the info, I'm thinking I will use the thermoswitch, and do it right. I take it the thermo switch is adjustable?