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Help Adding A Relay Panel

 
Cameron
I love my Chevy Chevette!
Posts: 1
Joined: 12/13
Posted: 12/18/13 03:28 PM

I am adding a relay panel to my 1980 Chevrolet El Camino. I am going to use the ignition switch as the power on/ power off. I am wondering what wire I connect it to because there are a few to choose from. THanks  

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Dave632
I mow my lawn and find Chevys
Posts: 2253
Joined: 07/08
Posted: 12/18/13 07:18 PM

Check with Wayne on your question. He has schematics on those cars and can tell you what to use. It would also depend on how many relays you are going to install and why you are doing this. Is this a race car or street?
A relay is useful for controlling a high current source with a low current switch.  
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Dave632
I mow my lawn and find Chevys
Posts: 2253
Joined: 07/08
Posted: 12/18/13 07:18 PM

Check with Wayne on your question. He has schematics on those cars and can tell you what to use. It would also depend on how many relays you are going to install and why you are doing this. Is this a race car or street?
A relay is useful for controlling a high current source with a low current switch.  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

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wayne712222
My first time was in a Chevy
Posts: 245
Joined: 10/13
Posted: 12/18/13 10:07 PM

Ls309ignitionswitchpinout


you only have 3 choices for the power out..
i1 at the upper left
A upper center
I3 lower right.

i1 runs a lot of things.. like the ignition and other engine related items
A runs the accessories.. stereo.. and a bunch of other things that i will have to look at the diagram to describe.
i3 usually runs the AC controls..  

the #263 wells or duralast ignition switch pigail




if you just want activation current..  not LOAD current.   look at your fuse box.. there will be open sockets there that will be switched or unswitched..  these are on most GM fuse boxes..    some of these GM fuse boxes require special shaped wire connector bodies to connect in and latch in..   the junk yard is a great supply of these.. look under the dash of similar year full size gm cars .. think caddy.. olds buicks pontiacs..  they will have the most accessory connections plugged in..   many of those are also fused.. so the switched circuit might need a fuse installed ..


on the engine side of the firewall.. is a group of red colored wires up to a terminal stud . thats a good spot to grab current from for your relay..  depending on how many amps..

please.. with a test light.. hooked to ground.. probe the alternator output terminal.. it should light up the test light.. there is a big red wire plugged into the side of the alternator.. that one should also have voltage to light up the test light..

there are at least 2 fusable links at the top of the starter solenoid.. this is how you test to prove they are both good..  lets you know if you have blown out one or the other..

if you are going to power a massive car stereo system amp.. that needs to be hooked up differently but switched in the same way with the taps on the fuse box..

do you have a glass fuse box.. or the plastic plug in fuses??????  

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dond1965
I have an SS396 tatoo
Posts: 294
Joined: 12/13
Posted: 12/18/13 10:48 PM

Grin hi dave, waynes a bro, for sure for sure.  

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