Adj Thermo Switch?

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Apr 15, 2005 | 11:35 PM

Taijutsu

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Drifting

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From: Stockton Ca

Adj Thermo Switch?

What is the best adjustable switch for thremo controlled spal fans? I love the Spals but the cheap switch burned out and turned my fans on @ midnight. Woke up to a dead batt. Spal only make 2 switches and both go below my 180o thermostat. What are my options? Spal is working on an adj switch but not yet. I'm having my 74 rewired again, and I want this done right. Any help out there? TIA

Rick

Apr 16, 2005 | 07:46 AM

78pacer

Drifting

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From: 2010 C6 Grand Sport Convertible

Dewitt has a switch which kicks on at 195 and off at 175.
I know you can get a 185 and 165 as well

Apr 16, 2005 | 10:53 AM

Taijutsu

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Drifting

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From: Stockton Ca

That is the problem. My engine runs at 180o. I need the fans to shut off at 185 or higher.I would like the fans to turn on at 195 and off at 185. Anyway that I can do this?

Rick

Apr 17, 2005 | 12:34 AM

AlwaysWave

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From: Hoosier

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Call Summit. Painless has a switch that turns on at 205 and off at 185. It's the one I use. You'll find that most, maybe all, are a 20 degree spread.

Apr 17, 2005 | 01:42 PM

Taijutsu

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Drifting

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From: Stockton Ca

That's perfect! I don't have a summit cataloug, anyone have the #s? I will order that ASAP. On @ 205 and off @185 would work. TIA

Rick

Apr 17, 2005 | 05:18 PM

markdtn

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From: Chattanooga TN

Also you could give an ignition-switched signal voltage instead of a hot source. Then your battery won't die. With a regular fan it isn't ever on with the engine off so it shouldn't hurt anything.

Apr 17, 2005 | 10:21 PM

AlwaysWave

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From: Hoosier

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Quote:

Originally Posted by Taijutsu

That's perfect! I don't have a summit cataloug, anyone have the #s? I will order that ASAP. On @ 205 and off @185 would work. TIA

Rick

look it up here. summitracing.com

Apr 17, 2005 | 10:34 PM

BSeery

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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."

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Quote:

Originally Posted by Taijutsu

That's perfect! I don't have a summit cataloug, anyone have the #s? I will order that ASAP. On @ 205 and off @185 would work. TIA

Rick

http://store.summitracing.com/defaul...=egnsearch.asp

Here is what I am using.

http://www.haydenauto.com/assets/2003Haydencat.pdf
Go to page 90 (92 of 222) and look at part number 3647.
#3647 - "Temperature and AC activation, Operation of up to two fans, AC or manual override, Complete instructions and hardware.
Replaceable relay and fuse. Limited 12 month, 12,000 mile warranty"

I get them at Pep Boys for $39.99, but I see today they have jumped the price to $50 ish. It will run 2 fans, has the A/C relay, adjustable, has the fuse and relay built in and is all in one compact unit. It uses a temp probe that you push in between the fins of the radiator so you don't have to put anything into the motor (no draining of the fluid). I like that feature too as I don't want to run wires from the engine to where I have the controller mounted on the left inner fender. Makes for a cleaner look.

I had one burn out (my fault (wiring too close to heat source)) and will be re-installing one tonight. I will take pictures.