what kind of relay?
09-01-2007, 07:55 AM
#1
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Car: 1991 Pontiac Firebird
Engine: 383 LT1
Transmission: built 700r4 and fuddle 3500stall
Axle/Gears: 4th gen 3.42 auburn
what kind of relay?
im trying to find a relay that has 2 12v input sources to turn it on...
what im trying to do is set up a relay to run my cooling fans and i need one that will turn on when the a/c comes on and i also have a temp probe that would turn it on when the engine gets over 180*
anyone know what relay i should use?
what im trying to do is set up a relay to run my cooling fans and i need one that will turn on when the a/c comes on and i also have a temp probe that would turn it on when the engine gets over 180*
anyone know what relay i should use?
09-01-2007, 08:22 AM
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Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: what kind of relay?
IT may be easier to make it like the stock setup and have on relay, and just make the temp switch and the AC switch supply a ground path. That way you can hook up both ground wires to a single relay terminal.
09-03-2007, 10:10 PM
#3
Re: what kind of relay?
you could just use two relays. one for the temp switch and one for the a/c or you can put both inputs together and diode isolate them so that they don;t feed back into eachother. I'd say stick with the two relays and then you can wire in a bypass switch into one of them to turn the fan on whenever you want.
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