Temp activated fan switch (Pic Inside)
Thread Starter
Supreme Member
Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Temp activated fan switch (Pic Inside)
The question has come up a few times lately so I made this. This will create an auto on 210F fan circuit. Swap out SW555 for a different on temp. Factory for my 1984 TA 5.0 is SW500.
Let me know if I missed something.
Let me know if I missed something.
Code:
SW500 1 3/8 x 18 Open Makes 230f ± 8 SW501 1 3/8 x 18 Open Makes 222-239 f SW502 1 3/8 x 18 Open Makes 238f ± 8 SW505 1 3/8 x 18 Open Makes 221f ± 8 SW555 1 3/8 x 18 Open Makes 210f Breaks 205f
Last edited by midias; Feb 23, 2014 at 08:05 AM.
Re: Temp activated fan switch (Pic Inside)
always better to put the thermal sensor in the back of the head because coolant circulation is slower back there so it will be the hottest spot on a engine. By putting it in your location rear temps could be hotter then 210.
Thread Starter
Supreme Member
Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Temp activated fan switch (Pic Inside)
Although on my car I have a mechanical temp gauge there and it reads 210 when my fan comes on same as my IR gun.
Re: Temp activated fan switch (Pic Inside)
Good call, it may be better to put it on the passenger side where it would be farther back. Although I did not find a good picture so show that location when making this.
Although on my car I have a mechanical temp gauge there and it reads 210 when my fan comes on same as my IR gun.
Although on my car I have a mechanical temp gauge there and it reads 210 when my fan comes on same as my IR gun.
idling
road speed
Thread Starter
Supreme Member
Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Temp activated fan switch (Pic Inside)
Yea that is why I added the sensor list. All these will interchange with the SW555 shown
Factory for my 1984 TA 5.0 is SW500.
Code:
SW500 1 3/8 x 18 Open Makes 230f ± 8 SW501 1 3/8 x 18 Open Makes 222-239 f SW502 1 3/8 x 18 Open Makes 238f ± 8 SW505 1 3/8 x 18 Open Makes 221f ± 8 SW555 1 3/8 x 18 Open Makes 210f Breaks 205f
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