Fan Relay Mounting Location?
Thread Starter
Racer
Joined: Mar 2005
Posts: 473
Likes: 2
From: Champlin Minnesota
Fan Relay Mounting Location?
Where is the best place to mount the Spal controller and additional relay. Also, where is the best place to tap off for ignition (switched) power? I guess this would not be a problem if I did not care what it looked like when complete, but I am **** and want it to look like a professional job, not slapped on the fender with some drywall screws holding it in place, and wires running everywhere.
Melting Slicks
Joined: Mar 2004
Posts: 3,472
Likes: 18
From: Lake Ozark, MO
I installed a Spal relay box and bolted it up under the fenderwell on the A/C side. Since I don't have A/C anymore. I used the hot wire from the compressor harness to trigger the relay when I turn the "AC" on with the switch in the cabin...nothing else to add. Just make sure you get switched power so the relay isn't energized all the time.
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by davidm_comp
Where is the best place to mount the Spal controller and additional relay. Also, where is the best place to tap off for ignition (switched) power? I guess this would not be a problem if I did not care what it looked like when complete, but I am **** and want it to look like a professional job, not slapped on the fender with some drywall screws holding it in place, and wires running everywhere.
and I used this sensor (in the PASS side head) - it is "plug and play" with the Spal Controller!
Good Luck!!
Last edited by pws69; Mar 2, 2006 at 03:32 PM.
Pro
Joined: Nov 2002
Posts: 599
Likes: 16
From: vista CA
Originally Posted by davidm_comp
Where is the best place to mount the Spal controller and additional relay. Also, where is the best place to tap off for ignition (switched) power? I guess this would not be a problem if I did not care what it looked like when complete, but I am **** and want it to look like a professional job, not slapped on the fender with some drywall screws holding it in place, and wires running everywhere.
Seriously - I am watching this also, as will be putting in electric cooling fans myself in the next few months....the pics are great! As you are ****, take pics of what you end up with - lead the way for us slackers ...
Racer
Joined: Apr 2005
Posts: 339
Likes: 1
From: San Diego CA
Hey, I think that coolant sensor is the solution to my problem!
My OEM sender doesn't seem to be able to trigger the fans to turn on, so I'm having to manually turn on the a/c to force them on.
Where can I find one of those? I PM'd pws69 to learn more about it.
Also, where are you guys getting the 12 volt switched power. I have mine hooked up to the positive side of the coil...but now I'm not so sure it was a good idea since I believe it's a reduced voltage.
BTW - I mounted my controller inside the left fenderwell, behind the carbon canister. On my '71 I can remove the side grille and get right to it.
Thanks for any info...
My OEM sender doesn't seem to be able to trigger the fans to turn on, so I'm having to manually turn on the a/c to force them on.
Where can I find one of those? I PM'd pws69 to learn more about it.
Also, where are you guys getting the 12 volt switched power. I have mine hooked up to the positive side of the coil...but now I'm not so sure it was a good idea since I believe it's a reduced voltage.
BTW - I mounted my controller inside the left fenderwell, behind the carbon canister. On my '71 I can remove the side grille and get right to it.
Thanks for any info...
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by Rock'n Old
I think this is a good idea for some new wiring in old chevy's.
From Mad Electronics. also with remote solenoid for starter.
. . . . . . . . o . . . . . . =
From Mad Electronics. also with remote solenoid for starter.
. . . . . . . . o . . . . . . =
I agree, MAD has some excellent information AND products.
You will notice in my pictures that I used a terminal block - it came from MAD as well as the wire and terminals. It was just too easy to order the parts after I read all of the material - everything you need is right there! Sure, you can get everything locally, but I always like to throw business to people who offer a ton of good advise and help with their product line.
The sensor was a direct plug in (two wire, weatherhead connector) and has worked perfectly. I purchased it at NAPA.
If anyone has questions, feel free to ask here or send me a PM and I'll be glad to help out.
Paul
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Racer
Joined: Aug 2004
Posts: 419
Likes: 4
From: Lewisville TX
I mounted my relay on the drivers side firewall (to the left of the winshield washer motor // right of the Power brakes booster) where there's a large area without anything mounted. '75 Vette
I tapped my power off of the Alternator - To only have it able to energize when the ignition is on. You can also tap off the Starter if you want power all the time (from the battery).
I tapped my power off of the Alternator - To only have it able to energize when the ignition is on. You can also tap off the Starter if you want power all the time (from the battery).