Building a race car harness from scratch.

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[@kylekeogh2731]

me watching Rob make a wiring harness knowing I’ll literally never have to do it in my life

[@Karma28217]

You may get to that point. I used to hate wiring until I worked at a shop for a while and realized that given proper tools, time, and some planning you can stop soooo many issues from arising with a solid harness.

[@ivegonemad]

Very niceeee

[@dakrak_]

Ikr 🤣. Given that tho I still love watching the content

[@smellycat249]

Life is funny. Never say never.

[@kraigchinn747]

Damn glad I don’t have too

[@nottherealjk]

Can't wait to see HP Academy come chime in on your harness building. I'm sure they're loving your thorough and no expenses spared harness now!

[@MrCukydoh]

Currently doing my HP academy wiring course and it’s brilliant

[@hpa101]

Always awesome to see what Rob is up to! - Taz.

[@dougoakley2643]

one of the very few automotive youtubers left where your still learning as you enjoy

[@Sexton257]

Check out Jimmy Oakes too, jimmy and rob are the only two I watch religiously

[@theheadone]

Just remember that when sizing wire, that the length matters along with current. So a 20 foot wire that needs 25 amps needs to be larger than a 2 foot wire. I'm sure you've thought of that, but I thought it needed to be said, rather than just using current to decide on wire size.

[@dlyle]

Very true and accurate

[@47EZ_DRIVER]

You need to look at the acceptable voltage drop over the wire. A longer wire given the same current as a shorter wire of the same gauge will get hotter assuming there is no cooling. But there is always cooling, so the limiting factor wire length value is usually determined by the acceptable voltage drop. The acceptable voltage drop depends on the load's requirements.

[@Matty.Hill_87]

I love it when the comment section has actual good advice and isn't full of idiots

[@Spinner1987CH]

@@47EZ_DRIVER well yes normally there is adequate cooling but in such a tight wire harness the inner lines certainly are not cooled

[@FishFind3000]

@@Spinner1987CH insulation rating also is important.

[@tomtricks6838]

i added a spade connector to a speaker wire today and now i act like i can understand what hes doing

[@cncaliguy09]

It is amazing to see Rob, a DIY that started with the crappy rat net harness in the OG 3 rotor, and mature into a professional level race spec harness builder. It shows his dedication to being a DIYer and commitment to his fans as read all the comments and invested time, money and energy to get into this level so people can learn how top make a top notch harness.

[@greengabe5]

Hey Rob, love the videos. Do you think you would ever release some sort of notebook or poster/blueprint for the 4 Rotor? Like a book with all the hand drawn notes you took or maybe even a shirt with the art work on it being some of your notes?

[@kai_444]

this is a pretty cool idea, maybe a blueprint poster with the car dimensions and rough sketches of the final body work with also a 4 rotor engine diagram

[@jadenj51]

I think that is a brilliant idea. 10/10 would buy

[@dongonzulman6478]

Larry Chen poster print please

[@JustATypicalGinger]

Oohh imagine like a coffee table book filled with pics of pictures from all the steps, from the previous build, to the harness, to the costume body work, plans and blueprinty stuff like you said and of course a whole bunch of photos of the finished lady in all her glory. Also maybe like a "class photo" with Rob, Isiah and all the crew that have contributed to bringing Robs masterpiece to life. Would be an awesome way for fans to throw some support towards this and future projects.

[@tomtricks6838]

@@JustATypicalGinger i’d pay $$$

[@WindingDreams]

I do this professionally with fancy tools and machines so it's really interesting to see the diy perspective.

[@Matty.Hill_87]

How long would something like this take you with all the proper machines and tools?

[@Tom-xn7zc]

1:12:20 The loops are called service loops for a reason. It should never be the last line of defense. All the strain relief should be achieved by the potting compound and boot adhering to the connector and to the DR-25. The service loops are solely for servicing e.g. replacing damaged pins and should never be subject to any form of strain. Also when using those mixer-tips remember to discard at least the 1 or 2 cm that comes out first.

[@thewdshck]

I'm excited to see this front bumper tho I can't imagine what ahura will look like

[@Matty.Hill_87]

Same man, it's all starting to come together and look like an actual car

[@thewdshck]

@@Matty.Hill_87 I also want to see a 3 rotor turbo in the rx8

[@superbird9095]

Rob I just want to say thanks for the content on all the wiring because it’s made me confident enough to build a custom harness for my 2jz using the ecu master emu black

[@adamtheninjasmith2985]

This makes me want to go over all the wiring with my dad that he did on our fc. It was small block Chevy powered but he managed to make everything factory work. Tach, speedo, water temp, power locks, windows, rear window wiper and even the sun roof. Younger me was much like Rob in the beginning and wiring was not my Forte to say the least lol. My dad on the other hand can look at a wiring harness sitting on a bench and start picking it apart. "these are injectors, this is oil pressure, this is temp this is this and that and the other thing too!". Old man blows my mind quite often 👍

[@michaelpulice6258]

Oooooh yes. 10 second old video 😍

[@jackc8301]

If you are looking for extremely high quality relays and switches for your projects my family company CIT Relay and Switch based in Minnesota offers a wide selection and offers a personal experience.

[@davidmayes6960]

You can remake most custom fenders hoods latches and parts but a custom wiring harness like that will be hard to match!!! Great job Sir!! Most people don't have the want to create like you do....

[@andrewable2634]

Loving the content, id be so overwhelmed on where to even start. Rad stuff

[@themagnushjort]

Power and ground

[@bobbiac]

Rob the only thing I would reccomend different is a p touch that does shrink wrap. something like an E500 or rhino labeler. oh and some klein electricians shears. homeless despot has them.

[@BeartheSamoyed]

As an electrician I can say that thumbnail looks Gorgeous!!!!

[@aharkins6]

Hey awesome vid! For the shield of the twisted pair, make sure you land it on one side and not both. Landing on both side can create circulating current and fuck your signal up.

[@esimler]

Land the source and float the field

[@DooD22]

Yooo another harness video! I love them. Another cables lesson with doc Rob!

[@darbythompson7020]

Me watching rob make a wiring harness knowing I’ll literally never be able to afford the same connectors and instead use cheaper ones

[@kirk-RSG]

Wow the art of wire-Zen, so satisfyng and relaxing to watch!

[@brx3649]

Spent a large portion of my life in structured wiring. Beautiful and therapeutic

[@jahuu2224]

Ecu Master is company from my country aka Poland, now almost everyone in pro drift series in Europe are using their products.

[@snakephantom1355]

one thing you should mention if you compare your wires to high end motorsports like f1 they dont run on 12V they all run on 16V to get the amps down

[@yanirasalka412]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@noelwellstead8744]

Hi Rob, nice to watch the progress of a wiring harness. I’m wiring an homebuilt aircraft at moment and robbed out a heap of MS connectors from a warship HMAS Perth before she was sunk. The connectors are all referenced as Backshell connectors and are all built to Military specification (Mil Spec) MS.

[@blakecrossing]

Rob you are by far one of the most real automotive KZbinr’s out there, thank you for sharing all of your crazy adventures and your crazy cars with us. You deserve way more than 960k subs.

[@lukebrennan5780]

thank you, Rob. I was shocked that this ended so quickly. Felt like 20 minutes. Definitely want to see the next one ASAP!!!

[@jbuch66koop]

This was only a portion of full thing, he didn't show installing any connectors on the end, then he still has a good bit chassis wiring to do still as well. I doubt this is the last we see.

[@Tclans]

I can’t put the finger on it but this kind of content is amazing to watch to me. It’s a bit slow and with an information overload but in the end very informative and entertaining.

[@robertu]

53:25 The lacing works much better when using either marline-stitching or figure-8 stitching. This is how I was taught for making/repairing electronics harnesses on shipboard equipment.

[@k1wi_steve]

In cold war lobby, see an hour and a half video from Daddy Dahm. Later boy's, got business to attend to. This is the content i live for!

[@southney7211]

Probably your most satisfying content to date. Great work buddy! 😎

[@sabotagedali6006]

I don't even drive but love every minute of these vids

[@HMan2828]

Word of advice, start by wiring from the end point and route everything up to the dash. So instead of starting from the Nexus and wiring a connector there, and then trying to fan it out to devices, start from the engine compartment, wire all your injectors and sensors, route appropriately to firewall grummit or connector, and THEN put the connector on for the nexus. Way easier than the other way around, since you only ever need to worry about what you're wiring at that moment, the harness just takes shape as you progress, and you always end up with proper length wires. You also don't need to measure anything beforehand, just wire things, route, and cut when you're at the connector.

[@martindworak]

Great advice, I hope he takes it, although it doesn’t sound like it. I work for a place building electronics and wire harnesses for military planes, rockets and satellites and we always start from the end.

[@taskerwinslow8697]

Thank you rob🙏 love the content

[@michaeldietsch7476]

This video is inspiring. I have been planning to build my own harness for my project, this has shown me a much cleaner way of doing it. Lucky for me it's just an MG Midget so as long as it comes out better than 72 British wiring I will be happy.

[@G_Ozare]

Perfect timing lol I was just listening to you and Matt Smoking Tire Podcast at the Valvoline Booth @ SEMA. You’re the man! 🍺

[@ChrisPBacon-bu7wf]

Thank you daddy Dahm for blessing this friday with one of your videos

[@jamesh5460]

I cannot wait to see this project get finished. It is going to be absolutely amazing!

[@danielpeck6269]

I've personally seen a leaky oil pressure sensor push oil all the way through the wire harness and fill the connector at the ECU on a Mini Cooper.

[@Gidanski]

Bosch do a sensor called a T-MAP sensor that reads pressure and temperature that would have made the IAT and MAP wiring neat for you like you fuel and oil ones.

[@REDRIDER101]

Rob it's outstanding, amazing, and so many more things to see you go from having your car in other shops to diving in and doing it all yourself. And not only doing it yourself doing it better and better and making changes to improve the build and your craftsmanship. It's fun to watch.

[@southerncope78]

Such an amazing video love it

[@AlexZanderMuro]

i see 1.5 hour long rob dahm video, i clear my schedule. its gamer time

[@yanirasalka412]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@KaspersGarage]

You might look into a braiding machine if you wanna go mil spec.

[@Brother2Jis_27s4]

You need a fold out wood table for harness making. You can run screws at different junction points and it really helps keep things organized and holds the wire from twisting back up as well

[@floodo1]

why go tried in true when you can go mad scientist hahah

[@soren8085]

Rob! Try using bread twist ties instead of zip ties when making harnesses! The plastic coated ones work much better than the paper covered ones.

[@TheUiy1]

This channel is just a documentary about Rob slowly losing his mind to perfecting a 30 year old car.

[@floodo1]

srsly

[@yanirasalka412]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@Braeserker]

Only Rob can make an hour and 23 minute video on doing a wire loom from scratch feel like a 15 minute video.

[@TheSergiomunoz]

im just thinking that rob dahm might be the next dr Emmett Brown but i do love his work amazing

[@j1mmys4ndusky]

The only thing that catches me off guard in your videos more than the sudden endings is the flawless transitions for Keeps advertisements 😂

[@Justin-hl5zh]

Your game has stepped up incredibly since you were doing the suppressor test(when i subscribed) it’s so cool watching this car and your skills develop over time. It makes me want to level up my game as a mechanic.

[@johndaniels1344]

I am here for the content

[@paullmight42]

i dunno if i can poo for 1 hour and 23 minutes, but im sure gonna try...

[@jakov175]

I love these long videos very much, I always watch every second of them

[@dankcutter9200]

When wiring turns into an art form. So freaking clean.

[@jjj4888]

I use RapidHarness to diagram and dimension all of my wiring stuff, makes it really easy to organize where wires go and figure out what you need. I'm sure the Haltech software can be a great help too, but I'm always scared to have stuff only on paper because then a computer can't check it. We love us some wiring baybee!!!

[@toyoboi]

I used to have a Jedi braid in elementary school... Basically a rat tail on one side of your head. This makes me feel more connected with Rob lmao

[@yanirasalka412]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@peekpt]

I worked in an Harness factory. I worked on 45° panel with all kind of forks and connector holders. The wires are all pre-cutted, crimped and attached one end to one connector. Then we just guide the wires inside the forks. The forks where perpendicular to the diagram that was on the panel. Then the wires were isolated, with all kind of tapes, then tested on a computer.

[@shannonreddaway1803]

I think I would have liked to see some heatshrink on the pins. Although they are in as aluminium socket, they’re awfully close to each other in there, but I’m no expert.

[@vincentwitjes5106]

i only made a small harness for my ducattis battery maintainer socket and my bt call set but thats not as complicated as this as the maintainer is 2 wires my bt set was 3 wires but non split off

[@chrismannifield3222]

I like to use cannon plugs to manage what you are dealing with. Yeah at an average of 90 dollars each set, kinda spendy but totally worth it.

[@allenl9031]

How many Rob Dahms does it take to screw in a lightbulb? 1 hour, 23 minutes, 19 seconds.

[@Thomas_K1972]

Hi Rob. Could we ask you to make a detailed video on how and what you are looking for and adjusting in your ECU when tuning your cars. Keep up the exciting work. Br, Thomas

[@filipecamargo69]

Rob, seriously, your content is wonderful.. even the longer videos, I cannot skip a second

[@spinmastermic]

Now you can have a drawer with various lengths of wire!

[@feenyx6394]

For some reason that only felt like a 40 minute video. Personally I've not done much wiring in cars outside amp/speaker installs, but I'm glad to see I did at least a few things right even if there's clearly a lot left to learn! Love the methodical approach to the planning. Take notes, draw schematics, label everything. It's not insurmountable, just do whatever you can to visualise what you're doing and it becomes "easy"! :)

[@111a-p2d]

This is probably the most detailed video about the wiring of the car from all that I have seen.

[@ben94cobra]

nice work for a first timer! face your loops inward, and with practice you can stagger them like you would with splices in a parallel lay for max density. Alcohol helps thicker pins insert smoothly in the AS or Milspec connector bodies and evaporates dry. And your DBW half bridge power is just fine unshielded, just give the pair a twist. O2 sensor power supply depends on number of sensors but you won't see much more than 1.5A-3A assuming you're using LSU 4.9 vs NTK. I find that my first harnesses were overkill on wire gauge and in time you will really dial them in lower. 26 AWG for sensors, 22 AWG for coils and injectors (high impedance), etc.

[@MishraArtificer]

...really, only 22AWG for coils and injectors? We use 18AWG at work for the solenoids we make...

[@ben94cobra]

@@MishraArtificer do the math on your specific combination, but yes, for mine, that's applicable.

[@fatusbloke]

Keep up the good work, two things - stick a tape scale to your wire rack, makes it easy to make repeat cuts. Also use a dressmakers tape to measure wire runs, it follows the cars contours better.

[@alexandrucaragea3820]

This is the channel for the Amazon jedi cloud server farm

[@monke4632]

I’m surprised there’s no KZbin experts on making their own harness correcting you and pointing out what you did wrong.

[@P.R.Shriram]

Worked on engineering documents all day prior to watching the video. Laughed to tears seeing that diagram Rob 🤣 You're awesome, keep it going!

[@loudnotfast6063]

Really been enjoying all the back to back content recently. I’m enjoying this specifically because im hoping to build cars to almost this level in the future

[@jordanhillis1315]

I want to do this for my race car but I’m poor 😂 thanks for the dream rob

[@chino581991]

That UPS story alone is gold

[@Nathan-qm6dh]

Dude you are killing the game with your build quality bro...every year you just level up even higher..glad your getting the recognition from companies like Home depot with tool mansion lol...

[@rs5001988]

I got to do this in my e30 an I haven't got 13ķ 😪 every light every switch everything! Nice job mate your channel is bang on love the technology aspect learn alot from you guys cheers ✌

[@frizzlefry1921]

You can do the same with relays for a 10th of the price. Maybe not quite but much much cheaper anyway. More wiring but there is always a trade off.

[@markyfrencho]

I love watching this stuff, so many good ideas that I can apply to my work. Currently building an audio snake for rewiring my stage.

[@lukassimonavicius5218]

Aviation grade stuff. Aircrafts have these connectors everywhere since beginning. And jet engines harnesses? Everything is in DR25. I checked the other day actually at work :D Basically everything what is in autosport came from aviation. V-clamps, intercooler piping clamps you have and so on and so on

[@ramonrivera5467]

Thank you for showing a nice clean well wrapped waterproof sealed harness your way looks reasonably right and clean.

[@colby1380]

Why am I stressed out watching this

[@pasidudissanayaka1843]

This is gonna look so clean and worth the effort and time to make it this way. I can't wait to see more of the 4 rotor content! Keep up the good work Rob! We love the videos.

[@ProModsPerformance]

Little trick. Use a Q-tip with alcohol on it to wipe the seams of glue at the edges of the boots after they are fully recovered. Will get the excess off and evaporate immediately not affecting the glue that stays behind

[@The_TIP]

Another IT carry-over 'life hack' you can use to save money and time is to get yourself a roll of velcro tape to use before you're ready to permanently set your bundles. Use the removable and reusable velcro wrap until the very end - THEN switch to zip-ties to permanently mount them.

[@carwerks101]

Rob, your videos are literally the only ones I get excited to watch, I wired up my Exocet using amazon wiring, going to switch to tefzel soon. I am so tired of all the other cookie cutter channels

[@chrisreardon7185]

darned long videos i’ll need this for later, doing a 6cyl swap into my 4cyl car going to need to make a new harness, or get one made. Company made an adapter harness for this specific chassis/motor combo, stock dash and all, but stopped due to all the different variations of engine/chassis and one harness couldn’t fit all. Very sad

[@sampic_]

Curious what the car is

[@chrisreardon7185]

@@sampic_ gg impreza ez30 flat 6

[@rasheedr6]

Bill nye was the science guy Rob Dahm is the wiring guy

[@littlehobbies]

So cool to see you so profesional, it inspires me and I'm sure others to push their building limits.

[@brianbeilmann2992]

I’ve seen that tape used. High end stuff. Nice to see.

[@Beakz_]

You can tell how long Rob has spent planning this out by watching his hair progressively get more and more "mad scientist" the further you get into the video. I'm only 25 minutes in and can only see this ending with Rob going full Doc Brown... Edit: Never mind, this whole video just got "crackhead electrical engineer" vibes.

[@z34hakeem_12]

Watching Rob make this harness makes me want to do it myself. Even tho I don’t have a reason to

[@marino4691]

I love when he uses software-development terms in car building. This guy is a genius

[@dylancraig9616]

I'm just remembering your old videos where Able wouldn't tune your 3 rotor unless he made the harness cause yours were so garbage, now look at you. Who would have thought ❤️

[@padraigrab08]

Knowing my luck when I've finished all the metalwork on my car, it will burn it's harness out of badness. I love the car the car hates me

[@FloorItDuh]

You have no idea how much I want to be at your shop right now making wiring harnesses and running them through your car. I have a degree in avionics so this is literally right up my alley. All of this stuff comes right from aviation.

[@zx1100a1]

I was so looking forward to this harness video. I was mesmerized by the last wiring harness video.

[@centennialfarm11]

This is becoming one of my favorite channels to watch.

[@Cheo.M]

Made that UPS driver sound like the SNL "Californians" skits 🤣

[@ArthurSperotto]

Why not FuelTech? Not criticizing, just genuinely curious.

[@Dimination36]

Watching this makes me realize that you don't have to be scared of making your own wiring harness. You just need to take your time and plan things out. Thank you, Rob, for always diving deep into your projects and bringing us along for the ride!

[@driftspecs13]

Holy shit, Rob. I had a rat tail in elementary school too. Why did we do that? Why did our parents let us do that?