How To Make A $50,000 Wiring Harness For A $2,000,000 Flooded McLaren P1 FROM SCRATCH

If anyone is going to have wiring issues with their McLaren, this guy's going to be an expert. He's probably going to make a living on solving McLaren wiring problems for life.

Let me say this. Adam is the biggest geek on earth. I say that in the most positive way possible. What he has done is doing with that wiring harness is beyond impossible. To be able to look at the ruined one and then think he can make his own is unreal. I wish my mind worked like his. To me this is by far the most amazing accomplishment of this whole project. Adam your are insane. It’s not just the fact you can make one. It’s the time and how tedious it must be not to mention what would happen if you make one little error during it. Adam my man you deserve the first drive of this car once it’s finally done.

Adam is the MVP of this project. This is crazy

The confidence it takes to take on such a project ! A complete wiring harness from scratch for an entire Supercar that is supposed to become the fastest McLaren ever. That takes a lot of courage, even if you have the skills and the experience. I admire him for that.

As an avionics technician, I used to wire military helicopters. Kudos to you guys taking this on.

Respect to the loom guy that’s a massive undertaking

I bet McClaren would want to hire you for their wiring improvements since you are making your harness modular!! REALLY SMART!! Thank you for taking us along on your journey!! May God overwhelm you, your staff and family with blessings!!!!

As a guy who has spent most of my professional life building, and wiring, machines, I can appreciate the magnitude of this entirely! Combining, and cleaning up all the grounding is probably one of the smartest things you can do to insure reliability down the road. I've had nightmares with CAN systems because of grounding, and poor connector continuity (either from construction or corrosion over time). If a signal gets dropped, or lost due to a resistance change, the node just disappears, and won't come back until the system is rebooted... That's part of that mystery magic you see in a lot of these exotics where they shut off the car after an issue, disconnect the battery, wait, then it suddenly works... anyway, those Amphenol connectors are killer; great choice! Fantastic job guys!

I used to build electrical harnesses for an aerospace/defense contractor, it was quite stressful at times, but nothing was quite as satisfying as doing the final continuity test and every contact on every connector got that beautiful beep lol

Once you understand the amount of work that goes into even a simple body harness swap, this looks like even more immense project! Now you have to graft multiple chassis models into one working harness with no communication issues or faults, not to mention the coding involved. Mind blowing Man! When this car is done it’ll stand tall next to any other legendary McLaren IMHO, including the famed F1. This will be a 1/1 in history and I’m here wide eyed to see it! 😮

As an aerospace engineer who specializes in harness design and manufacturing, it takes a lot of time and effort to put those harnesses together. Respect for you guys especially since you have to piece it together with whatever documentation you can find. By the way, that type of connector is called BENDIX (as in BENDIX connector) and it complies with a military specification (MIL-SPEC) regularly used in the defense industry. Those connectors are a very old but reliable as hell technology.

Whatever Adam is being paid for this work isn't enough. He's definitely earning every pretty.

I would love to watch McLaren Engineers reacting to this video! 😂 I am sure they would have colorful commentary on how bonkers a project this is! Good luck, gents!

The wiring loom guy is truly a master if his craft. I fully understand what is involved, and can only take my hat off to him for embarking on this epic journey. Sectioning the loom is what McLaren should have done in the first place.

I am glad that you dedicated a solo episode to the wiring harness.

I am working as process engineer in cable harness manufacturing, and when I see this challenge, I think "WÆÆH". Reverse engineering and manufacturing is 3 times more difficult than manufacturing from drawings and this a pretty large cable tree, which is realistically hundreds of engineering hours + sourcing + manufacture. I'm impressed, boys! This is a serious one!

Adam is "to be accurate" a saint

I am a wiring geek and I approve of this video! I also want to say how much I appreciate you calling out the differences between power ground and signal ground!! I couldn't imagine trying to troubleshoot the issues that you would run into if you proceeded on the assumption that "well, ground is ground" and tied things together!! Pure nightmare! Lastly, I am not going to be surprised that from an electrical standpoint, it will work but I will be amazed! The only thing I have to say after that is good luck coding the control units to make it all work in harmony!!

Great job! From a guy who used to splice cables with up to 3,600 pairs of wires. One at a time. . . . . I also had to tone them out by the 10's of thousands so I can appreciate your awesome work. 😊👍

If this mans business is not popping off after this MOUNTAIN of a project i dont know man. It is insane and pure dedication. I love it