Donn Hecht

I am in the process of installing a Koyo/Fluydine radiator with a shroud, and thermostat. Im going to be running, obviously the radiator with a good electric fan. I am also using my A/C, cause here in Miami,Fl its hot as hell. So what is the correct way to install the electric fan, does it connect to the switch or a wire of the A/C compressor ? So in other words does it turn on when I turn my A/C on ? Also when im driving on the highway does it turn on automatically (the E. Fan) ? Or does it just turn on when the car is not moving lets say traffic, or when the car idling for long periods of time. I know you have to use a thermostat, but at what temperature does it turn on the E. Fan, and when ? EG: sitting in traffic, idling for long periods of time etc,etc. ? Due to the fact, that this topic has been brought up time, and time again, however after compiling a search on the forum, it brings up alot of information on this matter, as far as personal opinions are concerned. I just want to do it, based on the advice of someone, "Who has been there done that, and has it working the proper way". Any advice is Greatly appreciated.


Thank You

RRTEC

iTrader: (13)

No to steal your post...but is push or pull aplication better?

bkapold@aol.com

This is whats worked for me.. I have a Koyo and a 2200 CFM E-fan with no shroud and its mounted on the engine compartment side of the radiator blowing ON the motor (PULL). I have 27 x 8 x 4 Spearco FMIC and T60-1 turbo and I've ran the car 140mph @ 18-20psi for about 5 miles in 95F deg temps and the water temps never went past 95c on the Wolf display and water guage I had. Hope this helps

Trav

Pull applications are generally accepted as the more efficient method given the same CFM rating on a fan.

Center of The Universe

Pull.

slow87turbo

i used a e fan and thermorelay from advanced auto parts. its setable to whatever temp you want.as far as the ac...that will be a wiring nitemare. ill have to look up whith is the presure switch.


ej

frestylereaction

permacool thermoswitch kit...its kinda expensive....but its perfect...you wire it to the fan, then to a fuse that it comes with, stick a temp sensor into the fans,

it has the wires to connect to the AC relay also if you want. although i took ac out so i didnt use that

frestylereaction

and pull is of course smarter.....you drive and the air scoops in and goes through the rad towards the engine..... so why would you want a fan on there pushing it back out?...let it pull through even harder

Andrew

iTrader: (1)

A "pusher" fan would be mounted on the other side of the radiator, pushing the air into the engine compartment.

J-Rat

iTrader: (2)

There are PLENTLY of e-fan installation threads.

You want to run it on a thermostatic switch, so it will turn on, and off as needed. NOT just when the AC is on.

RESIST the urge to run a switch...

Jarrett

Trav

LOL, it took me a minute to figure out what you were saying...

A pull type fan is always mounted on the engine side of the RAD, pulling air from front to back. A push type fan is always mounted on the bumper side of the rad, pushing air from front to back.

You should never ever mount a pusher fan on the engine side of the rad or a puller on the bumper side of the rad. Air always flows front to back.

deadRX7Conv

Ignition(with timer)--shuts fan off when you leave vehicle to prevent needing jump starts.

Independent relay(s)/wiring--to prevent load on ancient wiring harness

Fuse--prevent watching improper wiring from glowing red

Temp sensor trigger--turns fan on at predetermined temp

A/C trigger--turns fan on when A/C is on

Pull/push--dual better than single, pull for engine radiator, push for A/C, added expense/components but cooling/AC independence might be good

Fused/relayed override switch--for when any of the above fails, allows max cooling and precooling

I like the variable speed controller.
http://www.flex-a-lite.com/auto/html...cessories.html

Trav

I know what you're getting at, but 'better' is a little subjective. Most of our cars have a weak electrical system and fans are a known device that requires a lot of amperage to run. You stick 2 fans on there and you double the problem. IMO you can probably get by with a quality single fan (high CFM and low amp). In other words, if you can't get by w/ a good e-fan, then you have other cooling issues to address.

The stock fan flows better than any e-fan can too btw.

It wouldn't hurt to upgrade the electrical system on a car that you're putting an e-fan on. (e.g. better alternator, etc).

Donn Hecht

I would like to Thank each, and everyone of you that replied to my thread. Trav what you said is true about the stock fan, and the shroud is the best, but the reason im doing it is because I would like to install my nice after market radiator, and be able to see it for one, and not covered by the huge stock shroud. Also It frees up a couple of ponys, and not to mention its a little less drag on the motor, and theres no Fan Clutch to have to replace when they go bad. Also it looks alot nicer in the Engine Bay, and it clars up some space. But all in all "Do you think its worth the time, and the money ?

Aaron Cake

iTrader: (1)

No. There is no power increase, and the electrical system is already overstressed from the factory. Stock clutch fan works great.

Rob500

I agree. I spent a lot of time effort and money in trying to make mine work. Never did get it where I was happy. I went back to the stock fan and shroud for functionality and reliability. I would say a e-fan is strictly an "appearance " mod.

Rob

NZConvertible

Not for an FC. Because of the shape of the radiator (nearly square), one large fan covers much more surface area and pulls more air than two smaller ones.

deadRX7Conv

Tra--, if your electrical system is taxed, fix it or upgrade it.

NZ-push +pull, not side by side

NZConvertible

Ah, I see.

Amur_

Stock clutch fan also makes changing any belts a bitch.

An e-fan opens up room in front of the motor, and with a temp switch you can set it to kick in at whatever temp you want (190F for me.)


Check this out:
https://www.rx7club.com/forum/showth...threadid=29465

Rx7Ridah

iTrader: (8)

dont mean to steal the thread but has anyone attempted a v-mount on thier fc yet. I am thinkin i am going to attempt it in a couple of months (post tax return). i have a few fellow car club members that are experienced fabricators. any ideas

Aaron Cake

iTrader: (1)

So? Is 30 more seconds of hassle every 12 months really worth it?

Again, so? And what is the good of all this room? And the stock fan also works perfectly and "kicks on" at the right time (gradually).

Check this out:
https://www.rx7club.com/forum/showth...threadid=29465 [/B][/QUOTE]

OK....Still doesn't change the fact that the stock clutch fan works perfectly. I have a e-fan on my car, but that was only because my stock clutch fan gave up. I dislike my e-fan greatly, even though it seems to work fine.

Trav

Mine's not, I've upgraded to an FD alt. But I was saying that for most folks still running a stock alt., it is.

Push + Pull = more restriction across the rad when they are off IMO. I still wouldn't do it.

FWIW, I am converting to an e-fan however.

oregano

iTrader: (1)

"No. There is no power increase, and the electrical system is already overstressed from the factory. Stock clutch fan works great."

Wouldn't the stock fan GREATLY decrease throttle response and how fast the engine revs? In my mind i see it as a heavy flywheel kinda. But what do i know... i haven't even gotten to drive my fc yet

NZConvertible

It's not really that heavy, but you have to remember that at the end of the day you can't overcome physics, so it takes about the same amount of work to move the air with a clutch fan as it does with an electric fan. That work is just transferred from the engine to the fan in a different manner. When the e-fan's running it'll be taking energy from the engine, reducing both power and throttle response marginally. The big difference is that it's either on or off, whereas the clutch fan is gradually sped up as it's needed.