Re: electric fan conversion??
Re: electric fan conversion??
Nice write up here:
http://www.higherground4x4.com/Tech%20Cooling.htm
And more information here:
http://www.jeepz.com/forum/cj-yj-tj-...rd-option.html
If you need more information that what I just added to the huge list that Jim Williamson posted to understand how to do this rather simple add on, then you pretty much need to hire someone to do it for you. There is stuff all over the internet, no matter what 'fan/Jeep' combination you google.
Re: electric fan conversion??
Wow, somehow completely missed Jim's post.. thanks Pete and Jim..
Chris, ill take a look at some fans and see how it can be wired, thanks
Re: electric fan conversion??
You should be dealing with just a + and - wire unless you are wiring in a thermostat. Not much more to it than wiring in a light or CB. I never bothered to run more than a simple in line fuse, but I suppose you could wire in a relay if the fan is going to be running for long periods of time. I just bump mine on and off, so a fuse has worked fine.
In addition to the vents and additional fan, you can also scavenge a reservoir and pump for a windshield washer (from pretty much anything), and grab the sprayer parts. Rig the power source the same way, again dealing with just a + and -, to a switch(using a momentary on switch that you have to hold in the 'on' position), plumb the sprayer part so that it sprays down or up onto the front of the radiator, fill it with plain water, and when the temps starts to rise, simply hose some water onto the radiator. This also works well. If you can't find a sprayer nozzle that works for you, grab some small brass tubing that fits the rubber hose and dimple the center with a small screwdriver so that it 'sprays'. This was common on a lot of the older van sprayers, BTW.
Hope that this helps.
Re: electric fan conversion??
Re: electric fan conversion??
FYI I would go without the thermostat. I've got one in mine, and really don't need it. Put a switch in the dash so you can turn it on and off. Having it run 100% of the time will not hurt anything. Will save you some money.
Re: electric fan conversion??
Apples and oranges!
A thermal switch can cycle after you shut the engine off and the internal temps spike. With the thermostat open, and the fan running, convection cycles the coolant, stabilizing engine temps.
+1 for relays! I just can't think of any good reason to route that many amps into the passenger compartment, when the device used is not mounted in the passenger compartment. One of my favorite places to find relays is the cooling fan circuit on JY cars. You get a nice high-amp relay for cheap!
Re: electric fan conversion??
i might of missed it but are you running a clutch fan ? if so maybe just switch for solid ..
Re: electric fan conversion??
i might be late to the show ..this is my findings . i have fought hand to hand with cooling . i have run without a hood installed thinking more air to engine ,, no help . i have messed with timing , adding fans , change to hi flow water pump . changed pulley size , made a bigger shoud for fan ,, added stuff to rad fluid ,, raped headers with heat tape , added cooler to engine oil , used rad bag on front of rad ,, run with out therostat ,, all this kinda helped but not with big gains ,, i regeared diff gears and went with under drive transfer case and ...wow cooling fight was over , hope this saves you time money and sleepless night
Re: electric fan conversion??
Thanks for input! However, if I regear any lower, I will not be able to drive over 10mph..
Re: electric fan conversion??
It is a clutch fan
Re: electric fan excellent controller
I ran a lincoln mark VIII (taurus) fan on my 4runner. No mechanical fan at all (The "fake water pump" fan bracket on the 3.0 cost more than going all electric.)
I wound up with a DCControls fan controller after talking to the Mustang guys in Arizona (hot down there!)
http://www.dccontrol.com/constant_te...ontrollers.htm
There are 3 wires on the Ford fan itself. ground, low and high speed. I used the low speed wire. 10 gage wiring was fine.
The auto parts store hayden fan thermostat and relay didn't last more than a year.
I ended up with a dc controls pulse width modified fan controller. These are built in the USA. Thermistor was on the cold side of the radiator. The hotter the coolant got, the faster the fan would run.
The fan would rarely run on the highway. It would run slowly in town traffic and sometimes it would kick up a bit faster on the trail, but never to the full howl you hear on the taurus next to you in traffic on i-25 with the AC on. Sooooo much less noise than the guys with the aftermarket black magic pancake fans on running flat out all the time. Flip on the AC and the DCControls unit will run the fan about 10% faster and never stop running it either.
The DC controls unit never broke. I can't say it is waterproof, but it doesn't seem to mind general 4x4 use. It was easy to hook up and solid state. No relay to hang.
Another great fitting junkyard fan is the volvo electric fan. the shroud is a little bigger for a better fit than the taurus fan on a toyota.
link to the DC controls page.
http://www.dccontrol.com/constant_te...ontrollers.htm
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