View Full Version : Fan switch? who dun it?


amschnellsten
04-25-2009, 09:23:24 PM
I was wondering if anyone could tell me what fan switch they used for electric fans? I have mine relayed and switched already so I am looking for a temp switch for the intake. Has anyone just picked one from another car at autozone that would screw into the intake next to the thermostat?

79camaro2001
04-25-2009, 09:26:23 PM
I bought a temp switch that connect at 180*F from painless. wired it up to a relay and when the switch connect it turns the relay on and then it turns the fan on.

Air_Adam
04-25-2009, 09:57:44 PM
I also have a Painless unit. Turns on at 200, off around 185. Works great.

If you want an easy to find parts-store part, get one for a 3rdgen Camaro or Firebird with a V8. They turn on at something like 220 and off at about 210, but they still work just fine.

79camaro2001
04-25-2009, 10:01:46 PM
I got one that actives at 180* cause here in Texas the heat can be pretty high. Rather have the fan running then letting the motor get too high. But up North this might not be too big of a problem

amschnellsten
04-26-2009, 12:50:23 AM
I do not need the painless set up. I have wired in a nissan relay box to the low and high speed fans to my arch controller. I want to put a temp switch inline to the low speed fan in the manifold and was wondering if anyone has done the same? If so what temp switch did you use and can I just pick one up at an auto parts store?

tom3
04-26-2009, 03:22:15 AM
From the third gen boys:

Here is some information on the various cooling fan switches made by GP Sorenson that should screw right in. At least the pitures on the advance auto parts and napa site look like it. Hope this helps someone.

Part Number Closing Temperature
FS1............................222-238
FS3............................240-252
FS4............................211-227
FS6............................204-220

Also, put the switch in the head for a quicker turn on if needed.

amschnellsten
04-26-2009, 09:58:21 AM
Perfect, that is exactly what I was looking for.

gordonquixote
04-26-2009, 10:00:24 AM
Don't use the temp relay from Summit/Jegs. I've burned two into the 'permanently on' position within 5 minutes of the car warming up.

yodaddy
04-26-2009, 01:22:34 PM
From the third gen boys:

Here is some information on the various cooling fan switches made by GP Sorenson that should screw right in. At least the pitures on the advance auto parts and napa site look like it. Hope this helps someone.

Part Number Closing Temperature
FS1............................222-238
FS3............................240-252
FS4............................211-227
FS6............................204-220

Also, put the switch in the head for a quicker turn on if needed.

I couldn't get "FS" to cross over. Is it safe to assume that a BWD brand TFS1 is the same as a GP FS1?

amschnellsten
05-01-2009, 10:49:28 PM
Does anyone know of a lower temp switch than these

yodaddy
05-01-2009, 10:54:18 PM
Don't have any part numbers for you, but the wells website has a lot of info on it. As does the factory air website, now sorting out what switch will work for you...I'm still trying to figure that out myself.

http://www.wellsmfgcorp.com/~wellsmfg/ds_fans.php?switch=sw&submit=Submit

BonzoHansen
05-01-2009, 11:43:06 PM
Man, I used to have a standard parts brand catalog that broke down ranges. IIRC I had one cooler than the ones listed above. I wish I had kept it. Stupid computers.

victor3ranger
05-02-2009, 02:18:58 PM
Does anyone have a diagram on how to wire up the sensor, relay, and the fans to make it all work right?
I am wiring handicapped so if anyone has a good easy to follow diagram for dummys I would appreciate it.:confused: