We stole the Brakes from a Tesla! - Totally Silent Electric Hummer?

[@untapupkeepdraw5922]

Hey I just wanted to say as a former military mechanic I love this project but a little heads up for you. That is not normal paint on that HMMWV ( humvee). It is painted with CARC ( chemical agent resistant coating). There is no health risks from dry CARC but you do need to take some precautions when sanding it though. Just thought to give you a heads up.

[@TheBrhyno]

Lol I saw that carc and metal start smoking and my lungs hurt. Not sure if that's the burn pits or the video but lets hope it was just the video.

[@dranoelr]

So there is no difference to normal paint which fucks you up pretty well when inhaled as dust or smoke.

[@NanoMine]

What's special about this carc paint?

[@zteaxon7787]

@@NanoMine There's this word called carcinogen that might have something to do with it. Maybe it's what it stands for.

[@Krynos18]

@@NanoMine Pre-gulfwar CARC had lead and hexavalent chromium. Nasty stuff.

[@julek43]

Zack when he floors the electric hummer: Asphalt scratches at a level 6 with deeper grooves at a level 7

[@erlanmeyerflask3574]

HAHHAHAHHAHA LT

[@meetv7700]

Lmao

[@polishedturdtv]

Arrest this man, he just killed me!!!

[@momotow8286]

I laughed way too much

[@VtTraves]

:P

[@chrisriverol9878]

I have 3 hmmwv's parked on my front yard. I worked as a hmmwv and H1 mechanic for about 10 years. This is very exciting to watch! keep up the great work!

[@Charlie.]

u maybe trying to sell one of em

[@chrisriverol9878]

@@Charlie. I wish, they belong to friends of mine.

[@DrFarisArab]

A wise man once told me: a person’s achievement is only limited by his equipments. Im glad to see you proving him right 👍🏻

[@rumman2669]

Sooo, was this a compliment or sarcasm?

[@naveedmazhar5186]

@@rumman2669 sarcasm sir!

[@shrinivasmandre5003]

Wtf

[@parth_2362]

That’s not what he’s saying 😂 He’s saying if Zack got all the equipment, plus more, Zack would be so innovative and creative and design some solid contraptions

[@wenjanvallecera5535]

Calm down fellas. 😆

[@StivenAliaj]

I'll be honest this is the most excited i have ever gotten for a youtube series

[@jasonjohns5598]

Facts 🤚🏻🥲

[@ZAGAD-i2x]

Fax no printer

[@andreibujor6821]

Me too

[@mohamedmostafa-qj5mx]

Same

[@larryfenix]

Same

[@KaneAndPia]

im learning so much watching this series

[@charlesballiet7074]

so whats jerry and rich have in common.... ... they are both bald lol

[@merrymanson]

I'm not, I don't know what he's doing in 95% of the time. But its cool so I watch

[@brookerobertson2951]

I just farted

[@SY-oy7st]

Me too, he’s awesome. 😎

[@poplaurentiu4148]

@@brookerobertson2951 Playing in your Tesla ?! 😉😎

[@Funybudy]

This is one of those projects I wish I had found a year from now, so I could just binge watch the entire series 🙏🏻

[@telegymon4917]

H0w are y0u? Y0u d0n’t want t0 look at me and meet me))

[@mineral520]

Totally! But he is moving pretty dang fast! I was expecting to see videos, maybe once a month, or even less. He's trucking!😉

[@illeinstein8519]

No lie😣 ...lol

[@RW-ze6su]

How else are you going to know it's Wednesday?

[@ASH__143]

@@mineral520 this videos are recorded months before uploading

[@moneyshot2239]

The brake pedal is a lever. When you move the master cylinder connection higher you increase leverage on it. Hopefully they feel ok after it's all done 🤞

[@moneyshot2239]

@@joyroy366 it's still a lever into the hydraulic system. If you lose all electronics you won't have the brake assist but you'll still be able to stop the vehicle. He might end up moving that around I think they'll be way too sensitive

[@straight-up-shots]

@@moneyshot2239 The fulcrum is at the top so by moving the connection closer to the pivot point, you lose range of motion, not leverage. Since the length of the pedal is the same and the fulcrum is the same, the leverage is the same. But that doesn't matter since it's a different pump.

[@moneyshot2239]

@@straight-up-shots by moving the piston closer to the pivot point of the pedal you're increasing the length of the lever in turn increasing leverage applied to the piston inside the master cylinder.

[@straight-up-shots]

@@moneyshot2239 The length of the lever isn't determined by the position of the load, right? Or am I way off? The fulcrum isn't changing.

[@joshnolastname407]

It doesn't matter if the lever is 12 ft long. As long as the rod from the booster is able to make it's full travel with out binding. He may need to put a mechanical stop in the cab. And as far as effort it should be determined by the height on the booster in relation to the fulcrum of the pedal, piston diameter and pressure or vacuum from the pump

[@ChristianH.1]

You are one of the most professional KZbin channels as well as informative. You asked about paint colors. Don’t paint it. Leave the military patina. Clear coat it with a satin clear and leave the “rough and tumble” look. It looks cool with all those military markings as well as it’s sand worn, war-torn look. That’s just my 2 cents. Keep up the excellent work. I love watching your channel!

[@1BlueSkyy]

Zack : “I stole brakes from a Tesla” Hummer : *imagines itself in the space.*

[@yazanhamod5187]

@Kyezxid that's me lmao I don't get it

[@DangerZone_GetRektDontCry]

@@yazanhamod5187 there was a Tesla in space

[@danielauen7790]

@@DangerZone_GetRektDontCry Pretty sure its still up there lol

[@DangerZone_GetRektDontCry]

@@danielauen7790 lmao I'm not that informed about it, found out about it through the Twitter memes at the time

[@MistahHeffo]

@@DangerZone_GetRektDontCry there -was- *IS* a Tesla in space

[@Relief2007]

The reason it was repainted from green was due to deployment in the desert. Being in a big green vehicle only makes sense for military purposes if you're in a lush green environment.

[@charlesmichaelschmitt6412]

First Gulf war!

[@LiviuLvu]

Exactly

[@usa17794]

Both colors should be Chemical Agent Resistant Coating (CARC) too. Won't absorb and can wash out with a steam/pressure wash.

[@ivanolsen8596]

RELIEF, Then what sense does it make for knobs running around in cabbage, sorry, cammo in the city?

[@Relief2007]

@@ivanolsen8596 there are many different types of camo fatigues that military wear (green, tan, grey, etc). The type and color all depend on deployment. Though, camo does not equate complete coverage for all scenarios. It's selected based on what is going to be most applicable to the common surroundings they will be in.

[@danw1955]

Well, that was a big improvement! That iBooster should handle the Hummer brake system easily. Despite the vehicle being larger/heavier, the brake pressures remain basically the same, as you are applying pressure to larger rotors/pads/shoes, etc. Can't wait to see this running down the road!😉

[@brianb-p6586]

Probably smaller rotors than the Tesla, but working through the portal axle gear reduction to be more effective.

[@Artiick]

"Even tho we're shaped like a brick, range is pretty important" -Jerry 2021

[@AxxLAfriku]

I STRONGLY DISAGREE! Being as famous as I am on KZbin, I know that it gets hard to read every comment I get. I try my best, but I am just so famous, that I can't do it much longer. Sorry, dear dr

[@Artiick]

@@AxxLAfriku lmao

[@squrrll]

*Zack

[@KawaiiM4A1S]

waiting for a new "episode" every week feels like forever, but the wait is so worth it when a new "episode" comes out

[@DemeDemetre]

why in quotation marks

[@quoctu1701]

Under my view, this guy is a real professional presenter....good speaker, good voice, good body language, good tone... and good everything. Good on ya buddy.

[@Stiiz22]

Even though I know nothing about mechanical or electrical engineering, I’m am here yet again, week after week, to see how Jerry rigs everything. 🙂

[@telegymon4917]

H0w are y0u? Y0u d0n’t want t0 look at me and meet me))

[@MohammadAm33n]

I love this journey you're taking us along. Can't wait to see the end result. Need to be patient.

[@stratas111]

I'm so in on this build. Been following the build from the start. Everything being done is so fascinating.

[@shoking9825]

Jerry: i dont want to mess with the firewall so i will make an adapter also Jerry: *drills hole* beautiful

[@philthy63612345]

Also his name is not Jerry...

[@dubious6718]

@@philthy63612345 Is it Jesus!?

[@Willeexd1337]

@@dubious6718 Zack

[@brianb-p6586]

He said that he didn't want to mess with structure which the iBooster's bolts would hit, not that there was any issue with shifting the centre hole.

[@shivverma3236]

love the smile on zacks face when ever he says “lasers”

[@singletona082]

Taking a 90's icon of gasoline guzzling inefficiency and turning it into a whisper quiet electric? I freaking love it.

[@brianb-p6586]

But it will still be an icon of inefficiency, consuming much more electrical energy for a given driving distance than any reasonable vehicle.

[@singletona082]

@@brianb-p6586 Given the mass involved? Yea. Still. Less of a glorious monument to 'fuck the enviroment' though given electricity doens't care what generates it.

[@brianb-p6586]

@@singletona082 The mass, the aerodynamics (both huge frontal area and terrible shape), and the wide tires with off-highway tread.

[@Omaha__]

This is one of the coolest series I've ever seen, I can not wait for the other episodes and see how this Hummer turns out. Need more of this in my life!!!!

[@telegymon4917]

H0w are y0u? Y0u d0n’t want t0 look at me and meet me))

[@Gleamoz]

Gooooombaaaah !

[@HanxoHaxashi]

Zack be like: *"Sorry Brian, it's only business."* Loved the series more and more

[@hsvr]

Calm down

[@HanxoHaxashi]

@@hsvr dude you should calm down. Don't get the joke?

[@g60force]

@@HanxoHaxashi CALM DOWN!! XD

[@MikeJohnson2017]

This is one of my favorite ever series on KZbin.

[@defiancegarage9896]

Moving the connection point up like that could mess up your leverage ratios. Have to wait and see once you get it on the road.

[@BrainiacHoyt]

leverage wouldn't be the issue. He increased the moment arm, so he has more leverage. Plus, that booster seems to need less force. My concern would be that he decreased the travel of the brake push.

[@temjerk]

@@BrainiacHoyt In addition to that the iBooster isn't used in vehicles with very large brake calipers. Hopefully it can provide enough fluid volume to drive the calipers on something like a Humvee.

[@jeepindave5464]

Yeah he added pedal stroke for more pedal force.

[@jeepindave5464]

@@temjerk good news humvee is 4 wheel disc so not a lot of fluid required. Also since the brake are mounted on the cv shafts, the gear reduction portal boxes also multiply braking.

[@kartboarder22g17]

Moving it closer to the pivot increases pressure applied to cylinder but also increases push stroke by user.

[@GabrieleNunnari]

I believe the breaking system should work fine, but the size of the tyre and wheel may play against you. When you brake you fight the torque that the body generate on your wheels, bigger wheel mean bigger torque due to the distance from the middle. This can be compensated if the braking disks are a big bigger, but keep in mind this when you try the system the first time, just be careful =)

[@trey1531]

He probably should avoid towing. Hummers can tow 4,000 lb.

[@krzysztofsniezek]

That's 100% right, but from the other side portal axles will increase braking torque on wheels (braking discs will be spinning faster than wheels). But also bigger tyres = more moment of inertia to stop. It's complicated, we will see how it will work 😅

[@naturalorang3]

He also has the ability to use the electric motor for regen braking so the hydraulic brakes are really just for extra braking power or when it’s in neutral.

[@philipdw6954]

I'm also interested to know if the booster already has a built-in ABS to prevent the wheels from locking up when breaking.

[@GabrieleNunnari]

@@naturalorang3 This ability exists only if you install a specific system. He has not spoken about any "regenerative" braking upgrade

[@darrinlauscher6994]

I like the way you used the two wrenches together for more leverage . I have been doing that for years and you are the only other person that I have seen do it also .

[@brianb-p6586]

It is a very common method. Everyone that I know that works on vehicles knows the same trick. It's also dangerous... be careful if you don't have the right tools and resort to this sort of thing.

[@beesod6412]

Easily my favorite project to follow on youtube. Thank you for high quality content every time, looking forward to the next vid.

[@trevor8038]

LOL having the humm play through the intro was a funny touch. Loving the series so far.

[@JerryRigEverything]

Nice catch ;-)

[@KayakDIY]

Oshcut does sound awesome! I might use them to cut out some boat transom mount designs I have. Planning a micro skiff build.

[@AnasAlyousofi]

I am excited to see the project finished

[@bnajjar1]

love the build, we faced an issue before when we built out jeep, the booster "Oil Pump Size" must match the calipers "Oil Piston" size, other wise you will have no real brakes.. its not about the ability of the booster... if your calipers are huge you will not be able to pump enough pressure to catch the brakes..

[@inothome]

Exactly!!! But not just the pressure, it may not have the volume.

[@theholyduck90]

as far as i know the hmmwv uses pretty normal braking parts. just mounted by the diff rather than by the wheels. worst comes to worst you could put different calipers and rotors on it. theres even a kit to fit bigass wilwood brakes on it.

[@sumduma55]

I came here to mention the same thing. Speed and weight mean very little when sizing a master cylinder. It's the calipers and wheel cylinders (if you have them). You also have to take into account any anti lock systems remaining in the vehicle. They can add to the overall fluid reserve needed at the master cylinder. He could have just added a pressure switch to the pump he had and blockedoff the steering lines. The pump would then only run when the brakes were depressed and the hydro boost lost pressure. Of course there would be noise when stopping. But once stopped, it should turn off unless he moves the peddle.

[@AustinAudiS6]

Its an electric booster. So it will only take a software tweek to adapt it to different setups... as long as the reservoir can hold enough volume for the system.. he will also have braking from the motor as well. This system likely defaults to 100% duty cycle when it looses comms with the vehicle.. so it may actually be to much pressure making for a very light pedal feel

[@Real_Tim_S]

@@AustinAudiS6 It's the displacement of the master cylinder - not software. If you have brakes that need 3cu-in of fluid displacement to fully apply the brakes, and you put in a master cylinder with anything less, your brake pedal travel will increase at best, or at worst, you will hit the floorboard before meaningful brake application is realized. I see a shaft adapter being installed, but I don't have confidence that he did anything about the total pedal excursion... Software is only going to affect how the booster boosts. There is still (by law - FMVSS in the USA) a mechanical connection between the pedal input connecting rod and the physical hydraulic piston - even with modern ABS. It would have been my preference to do something about the booster and retain the factory geometry master cylinder. The fact that he's just going in there and modifying everything "to fit" scares the hell out of me. No math is visibly occurring here on a life safety system. The saying "knows enough to be dangerous, and not enough to know he's in danger" comes to mind. This video series I was initially interested as I wanted to do the same thing - but now it's more like watching a slow speed train crash...

[@dalitsomz]

This is the most invested I have been on a KZbin series. You are doing something great here! Glad I'm here to see it.

[@jillkrieger1243]

Love what you do! The paint is “carc” mil spec. Please read the MSDS on both the green and tan! The fumes from welding can be bad.

[@urviinx1195]

I love how Jerry let the noise through the intro lmao

[@RajithAki]

same

[@dalitsomz]

I know right?

[@paristo]

Got to say that I am admiring that man capability speak clearly and about the topic without any distractions.

[@mrkumaravel5997]

Waiting every Wednesday to watch this series, can't wait to see how hmv rolls on road

[@aaronkoch3273]

heads up: brake systems usually pre-load the rears first, then bias the front. This is to get the nose being pulled straight before the full braking power kicks in.

[@timburton7307]

not in my experience, got a link to share on this?

[@apricity69]

Are you talking about the pressure maintaining feature on trucks with rear drum brakes? Four wheel disk vehicles don't need that.

[@MrLukassky]

Underrated comment. I hope it was a mispell by Zach.

[@Avetho]

@@timburton7307 Well, pre-load isn't really the right word since it makes one think there is a constant braking force already there, but the idea is correct and evident in cars. If you trust HowStuffWorks they explain why rear brakes engage first, as well as the proportioning valve that makes the fronts brake harder via reducing the max pressure to the rear. A metering valve is what is used to adjust the engagement sequence with rear drum brakes so the drums engage first due to disc brakes being normally in contact (Edit: As in brake pads gliding over the disc surface rather than far from contact, that needed clarification) rather than freely rotating like drums, drums take longer to engage so to make the drums brake before the discs the discs need to have a minimum pressure before they engage, which is set by the metering valve that opens in the flow direction to the brakes only when front pressure reaches the set pressure. In all vehicles from the factory, when you hit the brakes hard and the vehicle isn't going completely straight, you'll notice the vehicle pulls straight if you don't force the wheel to stay turned to one side (provided its not steer-by-wire of course which is a very dumb system), this way the car doesn't shift its weight to one side and risk entering a spin since tyres grip best when they are not sliding (Edit: Dynamic friction, its friction coefficient is always lower than static), and rolling is a constant static friction system. Also, I believe I overexplained many things you likely already know, just know I'm more blunt than a hydraulic press and entirely neutral in explaining things :P

[@juriwuw]

@@Avetho nice

[@drewski23_7]

HUGE flex pouring that brake fluid! @ 13:56 LOVE IT

[@lochlanabraham3518]

Absolutely loving this series!

[@dontreadprofilepicc6239]

Don't read my name,,, ,,,,,,,,.....

[@frenchfry7640]

@@dontreadprofilepicc6239 k, I won't

[@MatchaMakesThings]

This series and the Electric super car series are inspiring to do the same conversion to my vehicle. In 5-10 years when it dies. I get to keep driving it around after an electric conversion. Thanks for paving the way Zach.

[@slumbynature4557]

Zack mentions "under the bonnet." Us in the original colonies look on with further skepticism. 🧐 Loving the build. Can't wait for further updates.

[@abbas8274]

"Life is a diy project " - jerryrigeverything

[@isaacashirvad]

Includes his baby too. It's not pre-made. It's DIY

[@ammanalam2001]

Colour should be grey

[@tomtallic]

Some inspiration: 1. A head up display 2. Pneumatic suspension 3. Night vision 4. A taser 5. A peppergun turret 6. Air condition 7. MRE and other prepper stuff 8. Hell yeah!

[@wenjanvallecera5535]

I've been waiting for a new series of the humvee every Wednesday. So excited for the finish product

[@DanielKatundu-y8t]

A new episode of this series is indeed always refreshing.

[@medmusic7977]

15 minutes and a half well spent this week ! Thanks for the great content sir ! You are as good as Colin Furze ! U both rip things apart n burn things!

[@g60force]

nah sorry Zack is great, but no Colin!

[@medmusic7977]

@@g60force We got a fangirl here

[@mjpete27]

So nice to see that your projects are like everyone else’s, I get that most only want to show an easy well done build, with no problems! I have done to many conversations where I had to start over because of one reason or another, thanks for sharing your process as well as your progress! I am enjoying watching your build immensely! You just keep on working it out and we will see a successful build in due course. Great video!

[@srinidhit8298]

So obsessed with this series that I clicked the notification under 15secs ❤️❤️❤️😂

[@TomBridle]

Zack's plan for the power steering: His own arms.

[@HopperNation]

I don't doubt that it would work

[@robbb60]

I love that you use a Cresent wrench for everything...definitely nice seeing someone use this crazy technology and putting it together with a Cresent wrench love it!!

[@Localtravel3r]

I thought my check was the most important thing dropping on Wednesdays, that was until this series started. Jerry el 💪🏻

[@BerrieSchuurhuis]

That special connector snapped on like a Lego!

[@tpad6]

Timestamp

[@goldenshovel7573]

@@tpad615:50

[@MuhammadZeshan]

I am loving this series much more than anything else, and now I start thinking that a man can do anything if he is willing to do.

[@officialsocialsigma]

It would be nice to see how much was spent on the project afterwards ❤️🙌

[@famousamoso7]

You know what they say..... if you have to ask....

[@GreddyS14]

Concerning the wire loom, you may want to watch Rob Dahm’s latest video, where he takes a deep dive into custom wire loom making. I watched it last night and it was super interesting. Could be useful inspiration for your project.

[@organiccold]

The wiring loom is not finished, he already said that will be the last thing to do

[@adammheisen4882]

Was looking for this comment!

[@morsalinosama7308]

I always get excited when he uploads a video of his humvee. There is always something to learn.

[@RolomirFenrir]

I'm loving these videos.

[@ray.upside-down]

Install a laptop's internal as the entertainment system so you can always get entertained and connect it to the inverter, gas pedal controller and all of that stuff directly to troubleshoot. I would recommend a framework laptop as modern ones can't operate outside their casing. Framework offers CAD for creating external cases which will make it way easier and while doing that you would also support a company which takes Right to Repair seriously:).

[@XxmatixX6videosdiariosdenadav]

Basically every laptop that's not the highest end posible, can operate perfectly fine outside of it's case

[@Willeexd1337]

Or an Intel NUC

[@ray.upside-down]

@@XxmatixX6videosdiariosdenadav Many modern laptops (2018+) have a tamper protection sensor which means they only operate ins8de their casimg or... 🔫

[@ray.upside-down]

@@Willeexd1337 That will be great, but power is a little concern here.

[@ray.upside-down]

@@XxmatixX6videosdiariosdenadav my 2015 dell xps I used for not so long as thermals were very bad so I tried to make it a external pc mounted on back of my monitor but it just wouldn't even POST. I asked a few forums and found out that it doesn't work out of its default case

[@SAGARROY-hs6lh]

Tbh this is the best series ever!! Thanks for doing this!

[@dubjspecialk]

Amazing, Jerry. I assume the humv doesn’t have ABS, and It didn’t look like the new cluster had ABS either. The wheels on this thing will have more torque than a tesla, but you also will have motor braking, correct? Lots to consider. Exciting! I’m stoked to see what you do for power steering 👊🏻

[@davidg.2651]

This is cool man! Can’t wait to see this beast moving!

[@dominoreaction2564]

Hello

[@123abcooo6]

E

[@dominoreaction2564]

@@123abcooo6 what?

[@123abcooo6]

@@dominoreaction2564 it was a reaction

[@StGeoRUSH619]

I haven't cheated and watched the final video yet. Right now, I'm binge-watching the whole series. IMHO, I think WHISPER would look very clean colored Glossy White with Flat Black accents all around the truck. I can't wait to see the final result !!!

[@vijaymittal5117]

I sooo wanna see the people’s reaction when jerry drives that silent tank on the streets. 🤣

[@Stambo59]

I don't think it will be totally silent, those huge tyres are gonna make some noise for sure.

[@HvV8446]

And smokes them at stoplights 😂

[@shevyshevrolet]

I would just look into maybe some sort of backup power for the brake assist in case of power issues. Don't wanna be doing 60 on the highway only for your brakes to stop working in case of failure.

[@Lierofox]

10:45 not to mention since the brake calipers are mounted inboard near the differentials, rather than out at the wheel hubs, the brakes are applying braking force to the axles. This means the braking force gets multiplied by the portal hubs (which I believe have a 1.8:1 gear reduction) so you effectively have brakes that are around 80% more effective for their size.

[@mannys9130]

The brakes take kinetic energy and transform it into thermal energy which is radiated and conducted out into the surrounding environment. If the vehicle is taken from 40mph to 20mph, there is a finite and specific amount of kinetic energy that needed to be removed and rejected in order to effect that vector change. It doesn't matter what part of the drivetrain the brakes act upon. In the end, the same amount of energy will be dissipated when changing speed from X to Y regardless of where they are located. Inboard brakes are nice for unsprung weight and clearance. That's about it. You could take a 4WD truck with front and rear lockers, put a brake rotor and caliper setup on the front drive shaft and one on the rear driveshaft each capable of rejecting X amount of Joules per second, lock the T case into 4Hi and lock the diffs, and the 60-0mph time would be no different than the same truck with a conventional 1 disk brake per wheel setup that is capable of rejecting X Joules per second with each axle. 🤷🏻‍♂️

[@brianb-p6586]

@@mannys9130 The energy dissipation is the same regardless of location, but the braking torque which can be applied to the wheels does depend on the portal axle gearing as Lierofox explained. There are many factors in braking system design.

[@krismorey]

I'm definitely interested in the power steering setup. As it would be a good mod for maybe a ice off-road vehicle. Especially ones that use sad hydro boost units that whine bad and are under powered.

[@chubbysumo2230]

@@eduardosantiago6948 since the steering on this really only needs to be strong enough to turn the wheels, probably the electric power steering setup out of a modern Toyota. Using the Prius electric power steering setup is a very common mod for older cars that don't have it, as it does not require any sensors, nor does it actually require any computers. It's also pretty strong.

[@ernankortes7107]

6:43 first time hearing Zack's Texas accent

[@pa1ncak3]

I thought I was the only one who noticed 😅

[@taze27]

A monumental project but if anyone can do something like this, its you Zack and maybe ChrisFix. I'm loving the progress. God bless!

[@olivermilsom602]

I tapped on the notification for this so fast, my screen started showing minor scratches at level 6 and deeper grooves at level 7

[@taltigolt]

darker green almost black should be the color or dark black

[@hellrider7s922]

naked matal is the way to go

[@mrmotofy]

A dark grey, gunmetal or similar would be cool

[@thecrazerkid2146]

Best series on KZbin right now!

[@mikeobie1]

Been waiting for this video all week!

[@marcdenlinger5282]

I've done similar modifications to my Jeep CJ. Changing from no brake booster, to vacuum booster, to hydroboost. One time when I put the stud higher on the brake lever it didn't push the rod into the master cylinder far enough. The little difference in the loss of swing radius in the brake pedal made all the difference, in a bad way. I'm curious to see how this works for Jerry in the end.

[@mannys9130]

Yeah, since brake fluid is incompressible, the travel of the master cylinder's piston directly correlates to the travel and pressure applied to the slave cylinders' pistons, including the reduction due to asymmetrical piston face surface areas. With most brake pedals being a class 2 lever , changing the booster's pushrod geometry or dimensions can make a big difference. :/ The master piston moves a pretty small distance as it is, and that travel is reduced even more at the caliper or wheel cylinder albeit with greatly increased pressure. Brakes are something that takes a lot of R&D to setup, and a lot of experience to service and repair. The number of DIY-gone-wrong brake jobs I saw as a mechanic is terrifying. "I just did my brakes and they sound terrible. I give up. Just fix them please." Well sir, you put the inside pads on backwards on each side, shim to rotor face... You destroyed your brand new pads and rotors by doing so, and endangered everyone on the road while coming here to my shop. I'd advise you to do further research next time and be careful with potentially life threatening repairs later on. I'll order new parts and get you back up and running." His name is actually Zack btw, not Jerry. :)

[@marcdenlinger5282]

@@mannys9130 Ha, Zack. I'll get it right next time. Classic story BTW. Scary!

[@marcdenlinger5282]

In my Jeep CJ-7 I currently have my brake master cylinder rod a little lower on my brake pedal lever. It has been the best iteration of my 24 years with my Jeep. The pedal feel is a little bit between power assist brakes and manual brakes, but I'm used to it. Hydroboost has been great! If I ever convert my Jeep to electric in the future I will definitely be looking into all the electric assist options. There seems to be more and more as the years go on and before too long the aftermarket will probably be supporting more of the EV conversion needs.

[@loganduffy3780]

Although you're right that the booster will 100% be able to lock up the brakes, you should still make sure those caliper pistons are in good shape because that would make for a bad day. Love the project and so happy to watch it drive

[@davidbetancourt4028]

I think it would be pretty awesome to reach out to Purdue University who developed that ultra-white paint and cover the hummer with it. Theoretically you'd need less air conditioning because of it during those hot summer months. I think it'd make for a very interesting video, especially if you visited them to discuss it.

[@stuartedge]

That would be exciting if it works!

[@ToXXeRR]

this is an amazing project Zac!

[@IWETROBOTICS]

Jerry is among the top 10 smartest KZbinrs I know of

[@VinaX2R]

6:00 oh my oh my, whoever welded it I guess welding is not his profession of choice 😂

[@anthonyostrovsky]

Was looking for someone to comment that🤣😅 Still cool build👍🏻

[@devonwilliams2423]

Lmao exact comment I was looking for aswell

[@piotrnod6489]

^^ same, I was screaming GRIND THAT FFS xd or second pass, or two more xd

[@b.s.ksaiganesh3831]

Addicted to this series bro😁

[@byganza8060]

man 2:50 is a mood. working on some project in silence while crickets are chirping in the background.

[@mr.cheera]

Most waited series ❤️❤️❤️

[@ZeWei1010]

51 seconds in the noise already drove me nuts, imagine driving it for years

[@vidznstuff1]

Meh...try driving a forklift for 8 hours each day, Snowflake

[@ZeWei1010]

@@vidznstuff1 XD

[@mreinecker]

Awesome man. The way these projects are iterative is what makes it fun. Learn more, discover more, go back and redo and improve things… it’s great. Good job

[@Kaeltis]

9:20 Using a bench drill to drill into a piece of metal you are holding with your hands is a BAD idea, can do some nasty damage to your hands if the bit gets stuck. Please always be safe with any kind of equipment and use a vice or clamp when drilling metal, even if it’s an extra step :)

[@Pete..]

very true, i cringed hard but glad he is ok , definitely clamp it man 💪

[@Pete..]

its like holding it and drilling it with a screw gun, you wouldn't do that , bad news when bit grabs and brings with it anything trying to hold it

[@g60force]

I almost lost a half thumb, 20yrs ago i'm now 40 i was still living with my parents it was around 9PM use my battery drill in the attic (which was my bedroom) so i got a washing cloth and lots of ductape cuz i didn't want to disturb them and slept with my hand up via a rope! next day i go to doctor, sorry sir we can't do anything any more you should've went to Emergency (still feel it sometimes)

[@V3DT]

Yep, I've gotten hurt doing that with a hand drill before while making something for my car, the bit grabbed & the whole piece of steel got ripped out of my hand & went spinning with the drill, left a nice cut across my leg.. Luckily not very deep. I had rounded the corners & edges of the piece with a grinder before I went to drill the holes. If I had not done that first it likely would of been way worse.

[@mattallurgical]

You should go with like a cool-hued battleship grey, low-gloss or matte. The color would be kind of urban and modern, while still maintaining the rugged, military theme

[@Jonnyblacknell]

I like this idea, maybe even "Dazzle" camouflage used on ships? 😁

[@Manstrual]

@@Jonnyblacknell would be dope

[@JaniduRajapakse]

The noise of those crickets in the background though! More annoying than the booster pump. Following you all the way from day one of this project...really exciting to see the notifications each time you upload a new video!

[@matyaspolzer5887]

Cant wait to see it completed also I would like to know the final cost when its all done

[@GoTeamScotch]

This is my favorite ongoing video series on KZbin right now. I really hope this becomes more and more common as technology advances and more people take interest. As much as I want electric cars to take over, I don't like the idea of all the existing gas cars needing to be wasted to get there.

[@PaulBarwick]

I don't see why they will be wasted. My version of the future sees the existing gas cars being driven to the end of their usual life just as they are now. They are not going to be sent to the crusher any earlier than they would anyway.

[@David-ql1hd]

Love it! Can't wait to see the power steering solution! Side note - I just saw your wife featured on a video through our church... I always had an inclination about you, but that pretty much seals the deal. :-) Happy for y'all!

[@abbas8274]

Jerry from tear downing a phone to a hummer it's pretty interesting he really knows how to take apart anything 😂😂

[@frenchfry7640]

You misspelled hummer😂

[@jimboslice5769]

Yeah, to a bummer 👀👀

[@OnlyKelp]

I had a stroke reading this. Let me translate it for others. “From tearing down a phone to a Hummer, it’s pretty interesting how he really knows how to take apart anything”

[@abbas8274]

Lol auto correct

[@jimboslice5769]

@@OnlyKelp nearly choked on my drink reading it 🤣

[@abdelrahmanqasim3932]

I'm actually waiting everyday for the next video of the humvee series 😂❤️ It's a great project. Anyway, keep the great work zack ❤️ Greetings from Egypt ❤️🤝

[@jorgenjohnson2168]

I loved this video also. I already saw the last video where you hooked up the batteries but I loved it so much I am now going back and watching the rest of your series. You also earned my immediate subscription and bell ringing which most channels don't get from me until the third awesome video.

[@hckd_2137]

Absolutely love this series . I would like to see the finished project VS a cybertruck and hopefully your electric humvee will win

[@nevmo]

jerryrigeverything's humvee vs the hacksmith's half scale cybertruck

[@weaponizer4444]

I have one important question will you make a roll bar for the Humvee. The roof structure looks very weak and in the event of a rollover could not withstand the weight of the vehicle, especially now with the weight of the batteries. In this frame the roof contraction looks very weak, or it only appears due to the shooting angle. 4:16

[@RubenRC94]

Of course a roll bar is safer. But most EV's are very very hard to roll. Due to the low center of gravity created by the battery's. Look at some sesla crash tests. Even so a roll bar is probably a good idea especially with off-roading

[@Real_Tim_S]

@@RubenRC94 I have watched all Tesla crash tests they are second to none - but also the roof crush needed to exceed what I.C.E. vehicles require under the IIHS testing specifically due to the additional weight of the vehicle that would be pushing down on those pillars from the battery.

[@grahammonk8013]

@@RubenRC94 A TESLA has low centre of gravity, as do most car or SUV EVs, but the batteries on this will be well above the hub level, if I understood where Jerry intends to put them. Having said that, this is an incredibly wide vehicle...If it is used aggressively off road, then a rollover is possible, and in that event, it will need a rollover cage as the impact will be severe.

[@NitroNuggetTV]

@@RubenRC94 This car will have the same centre of gravity as is did before the EV conversion. possibly even higher, because everything is going in the same place as the original ICE. This idea that most EV's are hard to roll is false. Its car specific. Also Humvees normally traction roll because of their soft-ish suspension and off-road tires with huge soft sidewalls that have loads of grip, way different from normal road tires.

[@22Platypus]

I find that very hard to believe. Off-road military vehicles are made with high rollover risk in mind

[@khamisnaaman5443]

Bro anytime i see your videos i get glued to the end... Love from 🇰🇪 🇶🇦 🇰🇪

[@MrCosmoe333]

Keep up the good work :)

[@عبداللهالشهري-ث8غ3و]

I love Hummer ❤

[@loucinci3922]

Nice one. Good job getting the booster installed. Thanks for sharing.

[@CrookedParadox]

Hey Jerry, here's my paint suggestion. Mopar Ceramic Grey for most of the body and the dash, gloss black trim, grills and bumpers, and black underbody coating for the interior, engine bay, underbody (of course), and possibly a short 2-3in strip at the bottom of the side panels and under the doors. Should look modern, clean and still rugged.

[@Justchuck69]

" black underbody coating for the interior" black on the interior may not be the best choice for a hot climate if your skin touches it ouch! Maybe a lighter color for the inside door and dash panels like light grey !

[@AnasAlyousofi]

I think I never been excited since I started KZbin this month for this project