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Old 08-11-10, 12:37 AM
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E fan question

Hey guys, I read alot of you guys use a ford taurus fan for your e fan conversions.. But it never says what year Taurus it comes from.. What year do you guys use? Tia
Old 08-11-10, 12:45 AM
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clutch fan
Old 08-11-10, 12:47 AM
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?


Originally Posted by durtled
clutch fan
Old 08-11-10, 12:49 AM
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Just curious what is the reason for you wanting to install a E-fan?


Originally Posted by rs_smoked_you
Hey guys, I read alot of you guys use a ford taurus fan for your e fan conversions.. But it never says what year Taurus it comes from.. What year do you guys use? Tia
Old 08-11-10, 09:16 AM
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well right now no reason, still dont have my 7, im just trying to do as much re search as possible before i get it. and im sure at one point when i do get it the fan will go out or something and ill want to free up engine bay room.
Old 08-11-10, 10:08 AM
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I read something about a Ford Villager or Nissan Quest efan and shroud fit very well to a stock rad; better than a Taurus fan.
Old 08-11-10, 10:16 AM
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Volvo fans are also very nice.
Old 08-11-10, 10:21 AM
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To answer his question... The fan everyone refers to is off the early-mid 90's taurus's.

Keith
Old 08-11-10, 12:49 PM
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actually i was thinking of doing this too. only cuz i dont like the stock fan.. lol
Old 08-11-10, 01:09 PM
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The stock clutch fan is pretty reliable. Looks or making room for something are the only real reasons to replace it. And if you do use an e-fan, you also need to upgrade the alternator. The S4 alt is weak and the S5 isn't much better.
Old 08-11-10, 01:12 PM
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just to throw this out there i have a fan off a early to mid 90s chevy lumina, the one with the windshield that just goes for days, and it fits on the rad quite well. covers the whole thing minus anout 2-3 inches. and thats only cause thts where the hoses are. but my car never ever gets more than 1/8th the way up the gauge. way cooler than a clutch fan
Old 08-11-10, 01:31 PM
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Originally Posted by RotaryRocket88
The stock clutch fan is pretty reliable. Looks or making room for something are the only real reasons to replace it..
I disagree.
The level of control possible with an efan is much greater than that of the thermoclutch.
Old 08-11-10, 01:40 PM
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Originally Posted by RotaryRocket88
The stock clutch fan is pretty reliable. Looks or making room for something are the only real reasons to replace it. And if you do use an e-fan, you also need to upgrade the alternator. The S4 alt is weak and the S5 isn't much better.
i heard efans keep the car a lil cooler too no?
Old 08-11-10, 01:47 PM
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From the FAQ section-

I want to install an electric fan. How well will it cool? How much power does it give me? Which fan, and how do I install it?
In short, you gain a small amount of throttle response when free-revving in neutral, and any power gained (less then 1HP) is almost immeasurable. Cooling will be no better then using the stock clutch fan since the fan is only used at idle or very low speed driving, and it is the thermostat that regulates the temperature of the engine and not the fan. There's really no compelling reason to install an electric fan unless you need the space (FMIC, 20B install, etc.) or your stock clutch fan died. Remember that the stock clutch fan freewheels when it is not needed, so it doesn't suck any power from the engine.

Lots of info on e-fans:
http://www.aaroncake.net/rx-7/efanmyth.htm
https://www.rx7club.com/forum/showthread.php?t=435289
https://www.rx7club.com/forum/showthread.php?t=430082
https://www.rx7club.com/forum/showthread.php?t=385994
https://www.rx7club.com/forum/showthread.php?t=397450
https://www.rx7club.com/forum/showthread.php?t=393234

Installation instructions:
http://www.aaroncake.net/rx-7/efaninstall.htm
http://www.rotaryresurrection.com/ro...ectricfan.html
Old 08-11-10, 01:54 PM
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hmmm.. i dont have a thermostat lol
Old 08-11-10, 02:36 PM
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Originally Posted by rotary_bünta
hmmm.. i dont have a thermostat lol
why not?
Old 08-11-10, 02:47 PM
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Originally Posted by clokker
I disagree.
The level of control possible with an efan is much greater than that of the thermoclutch.
What's the use of additional control if the clutch fan is already designed to keep the engine within the optimal temperature range?

Originally Posted by rotary_bünta
i heard efans keep the car a lil cooler too no?
It depends on the fan. Many e-fans pull less air the the stock fan. And there are other that will pull more, but require more juice to do it. I've also seen people using 2-speed fans, but only wiring it up for low-speed operation. That's a good way to get less airflow than stock.
Old 08-11-10, 03:04 PM
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Originally Posted by RotaryRocket88
What's the use of additional control if the clutch fan is already designed to keep the engine within the optimal temperature range?
Most fan clutches are now approaching 20 years old and don't work as designed.
A new one is $235.
The junkyard I frequent sells the Taurus fan for $15 and the Volvo relay assembly (controls a two-speed fan) for $10.

Whether or not people wire them properly is irrelevant to the intrinsic value of the fan itself.
Properly wired and using thoughtfully chosen thermoswitches provides much better fan/cooling control than the stock system was ever capable of.
Old 08-11-10, 07:40 PM
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Originally Posted by 12AllWays
To answer his question... The fan everyone refers to is off the early-mid 90's taurus's.

Keith
thank you....

about the alternator up grade, the fd one drops right in right? is it any better?... or is there another way to go?
Old 08-11-10, 08:45 PM
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the fd alt is a great upgrade, gotta get a different pulley for it and if you have a s4 you need the alternator plug for it. there is a write up on it in the faq.
Old 08-11-10, 11:12 PM
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i read on one post that changing to a electric fan gives you 11hp
it was in the threads here once just i cant find it
Old 08-11-10, 11:50 PM
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Guys,

Please read the thread links I provided.

Installing a E-fan and removing the stock fan clutch system adds "Zero" HP. What it can do is free up HP that is already there. However the amount of HP that it "frees" up is not really known. The only way to find out is too run a dyno of before and after and then it would have to be under similar circumstances. Meaning that the fan clutch not engaged versus the electric fan not on, then with the fan clutch engaged, and finally with the electric fan on. This is the only way to truly know how much HP is or is not being freed up.

The overall benefit of the electric fan would be in a area with very mild climates like I am in. The only time around here that I had to turn my electric fan on in my 1st gen was when I got stuck at a traffic light for more than 4-5 minutes. Other than that I had never had to turn it on. In my case it was very beneficial because I did not have the stock fan system on and that 99% of the time I never had to use the electric fan therefore freeing up whatever HP the stock system was using. :-)

You will find more information here-

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



Originally Posted by fc323
i read on one post that changing to a electric fan gives you 11hp
it was in the threads here once just i cant find it

Last edited by Rx-7Doctor; 08-11-10 at 11:52 PM.
Old 08-12-10, 09:26 AM
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wow guys, you all really help people out on this forum, thanks for all the info
Old 08-12-10, 04:38 PM
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If anyone cares, I just did the Nissan Quest fan on my car and it looks OEM on top of a KOYO. Had to trim a little and took about 4 hours including making brackets. Flows very well and doesnt seem to draw that much power. Paid $60 from a junkyard.
Old 08-12-10, 04:43 PM
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Things that the members would be interested in-

1_ In hot temperatures and in stop and go traffic how well is it cooling?

Pictures of the install and perhaps all of the materials that you used for the installation process.



Originally Posted by chatchie
If anyone cares, I just did the Nissan Quest fan on my car and it looks OEM on top of a KOYO. Had to trim a little and took about 4 hours including making brackets. Flows very well and doesnt seem to draw that much power. Paid $60 from a junkyard.


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