rotorybaby

wiring up the electric fan to the ignition so that when the cars on the fans on good or bad?

SureShot

I wired my NA's efan from the battery through a fixed thermostat using a relay ($20).
I also put a switched circuit breaker in the battery lead for safety.
The fan only comes on when it's needed.
Saves constant load on the alternator & wear on the fan.

Switching it off with the ignition is optional.

I added a circuit from the AC clutch through a diode to the relay to force it on with the AC.

MountainTurbo

What he said

Haven't done an electric fan on an FC yet, but have on other cars.

Sometimes, wiring the fan directly to the ingition can have a negative effect. When you turn the car off, the fan is still spinning for a while, acting like a generator and keeping the car running, so I would at least install a switch.

NZConvertible

Electric fans should always be wired directly from the battery via a fuse and relay, with the relay triggered by a thermoswitch. Anything else is asking for trouble.

WookeysRX7

I got power to me efan from the incar fuse panel. Works great. No problems yet and thermal switch is a very good idea.

SureShot

An efan wired through a stat is kind of the NA equivalent of a turbo timer.
You get a little extra cool down after a hot shut off.

NZConvertible

Running a fan off the interior fuse box is a bad idea. Most sufficiently sized fans draw ~20A, and there's not enough capacity in any of those fuses to run support that much load. Depending on which fuse you used, when (not if) it blows, you may have no idea until your engine overheats...

SureShot

I think he is referring to the main fuse block in the left strut tower.

Digi7ech

iTrader: (1)

I hooked it up to a thermo switch and the ignition.

That way when ever the key was in the on position it would run if hot.

I didn't want to chance killing my already half dead battery.

NZConvertible

So why did he say "incar fuse panel"?

Arcknight02

[newbie question]
where do you pick up a thermo swtich, could anyone give a little more info, all my cars have come with efans[/newbie question]

thanks
Ed

NZConvertible

Why do you need an electric fan?

Digi7ech

iTrader: (1)

Oh BTW.

Note that I had reverted back to the stock fan because the Efan could not cool as well as the stocker.

I was running a 16 inch fan with no shroud(suspect part of the prob).

WookeysRX7

its not gonna blow dude, i still have an inline fuse between the fuse panel and the fan. Im not that dumb

screwd08

maybe i should do some thinking. i bought an fc were the efan comes on everytime the car is on the ON pos.

Tsunami

I need an Efan because of the obvious reasons, easier revving and cleans up engine bay

F1blueRx7

iTrader: (5)

Well i wired mine non-ignition switched with an inline fuse. (Black magic e-fan comes with it's own. I did it this way to eliminate heat soak. I got a deep cycle battery to accomidate this factor and it works great. Elminates any possiblity of the car overheating even after a hot day with a hard run.

poor college student

i wired mine up directly to the battery via a fuse. It came on via thermoswitch or a switch that i wired to the interior of my car. worked like a charm

NZConvertible

Why didn't you just come off the battery with a relay like you're supposed to? Why run long (voltage-dropping) wires all the way to and from the engine bay when the fan is right next to the battery? How are you switching the fan?