The Ultimate DIY Automotive Wiring Guide

Getting the wiring job underway on the Z2H8 Camaro drag car project. using this easy and simple Precision fb and wiring harness along with the leash electronics relay board makes it a breeze. This is only the beginning but the relay board is completely wired up and ready!

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[MrMacGiollaChainnigh]

My man. I started this video skeptical as the title stated "Ultimate" but dude, I'm genuinely impressed. I've built multiple chassis/engine harnesses (few dozen) in the past 15 years(with Leash, Bussman custom setups, etc) and for the first time in a YouTube wiring video, I said "damn, that's clean". Absolute props, and I appreciate the 1440p upload.

[josephsmith]

This man has a well tuned mind and obviously educated. I admire looking at the neatness and safety in his hobby or career which ever it may be.

[BenotzJoe]

Very clean job overall. I like that IWSS kit. Thanks for sharing that.

Generally, electrical power inputs are called supplies; outputs are called loads.

It’s not clear what the ammeter might be used for. Manufacturers give you the load rating of their components. You size the wiring to the load and the fuse to the wiring. Not sure how you would might use the ammeter. You should avoid making sizing decisions based on measured current.

On your electric water pump, you can’t split the positive wire into two wires and leave the ground wire as a single wire. Your single ground connector rated for 13 amps will be carrying 20 amps. Keep your fire extinguisher handy.

Also, it’s not a good general practice to split a load into two connectors because if one of the contacts becomes compromised, you will overload the other wire.

[angeloc]

Just stopping in to say that wire loom is pure artwork. Nice job.

[Garage]

Nice trick with splitting the current through multiple wires in the Deutsch connectors. I know you mentioned the larger Deutsch connector later in the video, but so others know they are the DTP line which is rated at 25A for power connections. That's a dang nice looking relay panel. Learning wiring and accumulating the tools and supplies is so satisfying. I see that PrimeWeld TIG in the background too. Good choice there. Solid video!

[overlandready]

something you need to know! Splitting wires for a circuit or plug doesn't increase the circuit rating, you have to work to the maximum of the smallest part of the circuit, so that comes down to a single wire in a dual run, So in your initial plug at about 6:10, you are rated to one of the two wires. The reason for this is if one plug connector/wire fails you WILL overload the other connector and potentially cause fire. Rate ALL wires and connectors to above the maximum possible draw. On long runs add in the potential volt drop and resistance of the cable and overcompensate wire size according to that data.

[i]

i dont throw this around often, but you are an absolute gangster bro

[mauricewaddelliii]

Just curious, why not use a DTP 2 pin connector that can handle 25 amps for things like the water pump

[timekeeper]

I gotta say brother you sound really humble.

[worshamslawnservice]

This is a very nice and clean setup, very professional. Very very nice 👍

[powers]

Awesome work man. That's a very clean install!! You should be proud of that one. One thing I noticed about the that Leash board is that the relayed circuits use large fuses, so you have to run large wire for the outputs. So, if you have say, a smaller fuel pump that only requires a 7.5 amp fuse, the smallest fuse you can run on that relay board is a 20 amp and so you're stuck running much larger wire than the pump would need otherwise. It's still a great relay board all things considered.

[TurboEM]

Fuel/p n boost control was a good tip I’ll be using

[bdtoel]

Looks great, thanks for the tips. Will be trying an all new wiring set-up for my 1972 Porsche 914 V8 327 conversion in the next few months.

[steveivanov]

Looks nice and clean. Great work, glad the kit worked well for you.

[tbeach]

I've watched this video and the one prior. You've sold me on this kit. This was a great explanation on how to do this yourself. Thank you for that! The only question I have is do you run a key? How would that and the neutral safety switch tie into all this?

[markm]

Thanks for this vid! Im about to rewire my 1963 Chevy P10 in a few weeks. This does help a lot!!

[DE-okld]

Very clean work! I hope I can get mine looking that good!

[johnmedeiros]

I’m honestly just inspired. Great work bro!

[douglaslee]

Do you have a video about the "data logger" you refer to? If so, I can't find it. Thank You.

[TBRchannel]

Hey brother have a question what gauge wire is powering that board?