12 volt conversion for a 54 Chevy

Technical Details

alternator hook up chevy

Guidelines are intended to keep people out of trouble. Although these alternators are built into factory-style housings, they still look great under the hood - and only you will know that you have up to amps charging your battery. To add Ram trucks for and beyond: They were the only black ones in the box. And slow charge rate reduces corrosion at the battery area of these good-looking Hot Rods! Scotts Valley, CA Posts:

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Withoutabox Submit to Film Festivals. I had to drill and tap the frame. How you mount it is up to you. Wheelbase database Last photo: I also had to shorten up one of the bolts because it was bottoming out in the head.

We need to add the connector that would be there if the truck originally came with the TP2 option. To get this started you need to remove the fuse block and expose the harness connectors underneath. The connector we need to tap is the middle one closest to the engine.

Notice the single terminal in the upper right hand corner? That's the corner we will be adding to. I found mine at eficonnection. When the terminals seat they won't be able to be removed without a special tool, the TPA is added insurance. I just used a small flat head screwdriver and it comes loose.

Make sure to reinstall the TPA. Then connect the ground. There is a factory grounding point on the passenger side head. In this pic I've already ran the ground and incorporated it into the factory wire loom.

At this point we have our wires from the fuse block and our ground. Here are some pics of that little process. I'll start from the fuse block and work towards the passenger side. So now everything is cleaned up, with our three wires loose in the bottom left corner of the above pic. Now we're ready to add the connector for these wires. And you end up with something like this.

Route this harness along side the alternator wire and zip tie it to the alternator wire just below where the alternator wire is zip tied to the AC dryer.

But those cable aren't cheap, I'm going bigger, and why buy when you can make your own cheaper. At this point is when I would run the power and grounds for the second battery. You need to run power from the fuse holder bus bar side to the top post of the isolator and then run power from the bottom post of the isolator to the second battery. The battery is then grounded to the driver side head via a M10x1.

I also ran a ground from the second battery to the frame. I had to drill and tap the frame. I also had to shorten up one of the bolts because it was bottoming out in the head. Now its time to tackle the harness that makes all this work. Start with the male connector that will plug into the one we zip tied to the alternator wire.

Here is the sequence on how to make these connectors. Slide the seal onto the wire, crimp the wire to the terminal, slide the seal up to the terminal, crimp the seal to the end of the terminal, insert your terminals and plug, and attach the TPA. Use same pin out used for the male connector. This is what you need from the relay kit You need to double up the ground terminal From left to right you have the red wire from the engine harness, it goes to pin 30 on the relay.

Orange wire from harness goes to pin 86 on the relay, black wires go to pin 85, and the 2nd red wire goes to the battery isolator. So at this point we should have two wires coming off the relay. A red and a black.

These two wires are going to go to the connector for the battery isolator. Once that is connected I loomed all the wires and ended up with this. Plug it all in and clean everything up and you are done. You'll need these little gems to screw onto the studs on the firewall above the motor. They're called speed nuts. They're the only thing that will thread onto the factory studs. I forget what size they were. They were the only black ones in the box. This is a very doable project.

It does take some time, but the wiring is solid and looks like a pro did it. Between this cart and the relay kit from lsxtune linked above. You'll have everything you'll need to make all the connections for the fuse block, ground, connector by the engine, relay, and isolator. I used the same wiring and plug for terminals 1 and 2, and upgraded the charge wire to 8 gauge when I switched to a 94 amp 12si.

Its run fine that way for several years. Last edited by Frisco; at Frisco - thanks, especially for that diode number. I've already picked up the connector, but will file the Speedway information for the future their new street rod catalog came yesterday - that part is on p The speedway number is for the harness plug and iwres with diode.

I have the diode only if you are doing your own wiring. Post reply Start new topic. Want to lay chevy coil down flat?: Electrical problem with steering column?: Mustang Fox Body rewiring Questions: Brand New starter question Quote message in reply? In order to be able to post messages on the Hot Rod Forum: Hotrodders Bulletin Board forums, you must first register.

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Join us, it's free! Find All Thanked Posts. GM 3 wire alternator idiot light hook up I understand how to wire up the 3 wire alternator.

Remove Advertisements Sponsored Links. Wheelbase database Last photo: Originally Posted by dirtinla I understand how to wire up the 3 wire alternator. Irelands child Registered User Wiki Editor.

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alternator hook up chevy

The condition of connections at the Horn Relay screws is very important to system operation. I say this from experience since I've tried multiple 1 wires both on my Jeep and then compared a 3 wire 10SI. Who is online Users browsing this forum:

alternator hook up chevy

It sucks I took a dump earlier, now I'll never know if that roll would have caused me to crap my pants. I left all my stock wiring there with my swap and just ran a bigger lead directly to the battery off of the alternator for my winch and extra bus I have hooked to the battery post. You can search for "delphi crimpers" and find them.

alternator hook up chevy

Quote message in reply? Running a longer wire back to the battery will require a larger gauge. Maybe you just had a bad experience, glad you got it sorted out eventually anyway though, peace out. Where in the hell do you guys come up with this shit?? Feedback If you are a seller for this product, would you like to suggest updates alternator hook up chevy seller support? All voltage regulators take a voltage reading, and from the reading the regulator will make the diana zubiri dating history adjustments to alternator output. Close Make Sure It Fits!