Finding the right fan for electric conversion...

[phishie]

Hey all,

Well I'm ready to do that nifty fan conversion. I researched the archive and read the posts but I'm still stuck. Mostly I see people reccommending the Mustang 4cyl or GM v7 X fan's. More often I see the GM fan get reccommended. So now what I need to know is how do I recognize this fan and what GM cars do I look for? I'm not very familiar with what GM cars these would be in.

One more thing, I'm pretty unsure of how I'm going to power it. I've heard of people putting a switch in the dash, connecting it to a relay to turn on with the ignition and having it controlled by a temp sensor. Seeing that I have a 89 244dl N/A what option would you guys suggest? I'm pretty sure off the bat I don't need an in-dash switch.

Thanks!
Trevor

[Tuff240]

Here is an excellent page for info if you haven't seen it:
http://www.linkline.com/personal/dbarton/fanconversion/

Hope that answers a few questions for ya.

-PD

[boostdemon]

seriously any V8 car with a 14 or 16" fan is fine. im stuck in figuring out what i want to do for the activation setup.. static temp sensor or adjustable "dial-in-setting" type setup.

[Chad242ti]

I was able to salvage an electric fan from a ford taurus... It had the 3.8L engine in it, so I was fairly ceratin that this fan could pull enough air for my turbo. It turn out that the original plastic housing worked quite well once I cut it down to fit the volvo sized radiator. It is a two speed fan, but I have yet to wire up the low speed.
I am currently running the fan off a relay that is triggered by a temperature sensor in my IPD triple core radiator. I ran the relay directly off the battery, so that the fan will come on even when the car is turned off. This really helps the engine cool down quicker, and it helps in the life of the turbo as well. The water continues to circulate after the car is shut off.
The circulation is caused by the cool water wanting to flow to the bottom of the system and the hot water wanting to flow to the top. The fan helps the process along. As the hot water enters the radiator, it triggers the sensor, and the fan comes on. It stays on until the water is below a certain temp. The fan usually comes on three seperate times after I shut the engione down. This is however after I have been driving like a nut. I usually also let the car sit at idle for a few minutes prior to shut down to help prevent oil the oil from "cooking" inside the turbo... Setting up something similar to this will help your turbo last longer and keep the paint on your hood from peeling off... :lol:

[neurot75]

Wait hold up, in the dave's article about the fan conversion he sais that it might not work with 740 turbo's, that there might not be enough clearence, so waht other choices do i have?

im going to a junkyard this weekend so i wanna know exactly what i should look for.

[mikep]

The circulation is caused by the cool water wanting to flow to the bottom of the system and the hot water wanting to flow to the top.

Yep, this is what early model T Fords and some others used unless you bought the optional water pump.