Today i changed the electric fan in my friends RX-7 from the stock one to a bigger aluminiam one, to match his Koyo. The stock one from the RX-7 is just about the same size as our fans. The only difference is, of course, ours are belt driven and his is electric. So I was wondering if I took the stock one off mine and used his old one how I would wire it up? Where do you think I should steal power from? I probably would not use the temp relay just have it run whenever the car is on. Maybe a simple switch, and run straight from battery. I know easily forgotten about. Or should I leave it alone, and say bad idea? Is anyone else running electric fans? Thank you

 

L V Z, Go to your local parts store. Get an electric fan install kit. This will have the wire, thrmostat, temp sensor,and hardware needed to install your fan. Shouldn't cost you more than $15. With this kit you run it straight off the battery( I forgot you need to get an inline fuse with a 20amp fuse) the thermostat will turn the fan on when the temp rises, and off after it cools down.

 

WOW, I never knew that they made a kit for that. I guess I am just used to cars with electric fans from the factory. That was very helpful. Thank you

 

what would be the pros and cons of this mod? it'd be nice to have one less thing squeaking under my hood

 

The pros are that it frees up a small amount of horsepower since the engine isn't being used to turn the fan. It frees up quite a bit of space between the radiator and the engine (most stand only 3" - 3.5" tall). It looks much cleaner. The con would be that it doesn't push as much air as the factory fan, so if you have an overheating problem, it will only get worse.

 

I am using an electric 2 speed fan from a Ford Taurus in my ZX with 350Chevy. The Taurus fan moves much more air than any aftermarket fan. My temp never rises above 190*, even in 100* stop and go traffic. The only down side is you need a larger alternator to handle the high current draw from the fan motor. I use a 80 amp GM one wire alternator.