Extreme 107% engine brake - how does that work?

[@thisislargemouth5566]

The square tubing haphazardly welded in the exhaust is just peak garage54. 😂

[@SaraMorgan-ym6ue]

why don't they put a retarder on a v8?🤣

[@demoderby181]

Those are some VERY impressive welds!! Surprised the exhaust didn’t just say see ya later to the rest of the car.

[@-Jethro-]

Lol I noticed those. Not a stack of dimes, for sure!

[@Pulverrostmannen]

Lol yes, I was like they must have run out on the Argon mix or something

[@Juntasification]

@@Pulverrostmannen Argon lol. Im suprised if they use anything else than pure CO2.

[@bbroken1]

Yeah that was pretty bad🙃

[@davidn8759]

No joke , Next time grind that crap off , before someone else sees it

[@1987FX16]

I'd like to see a compression tester on one of the cylinders while under exhaust braking to see how high the compression goes.

[@MiG21aholic]

if it goes higher than what the exhaust valve springs can hold back then the pistons will smack the exhaust valve before the pressure will ever get over the compression stroke pressure

[@MiG21aholic]

Assuming it's an interference engine of course.

[@AtomicReverend]

It will be the same. You didn't change the compression ratio All you are doing is restricting the engine from breathing. It's essentially the exact opposite of making a performance engine as you are choking the engine so bad it can't easily turn. Remember an engine is essentially just an air pump all it wants to do is breathe so when you choke the exhaust you're slowing down how fast the air can exit so the engine has a wall of compressed air (compression) that it has to try to turn through and the smaller the exit hole the less theengine will turn essentially creating a backup of high pressure all the way into the intake (where there is normally a vacuum).

[@MadScientist267]

​@@AtomicReverendThis can be further enhanced however by killing the spark and opening the throttle plate wide open. This will "evenly" cancel out the compression/power strokes (rather than there being a slight net energy gain), and the extra air will give it plenty to do. My only concern with this entire concept as far as to implement on the likes of a car is the materials the butterfly/throttle body are made of... And those exhaust gas temps during power production 🤣

[@jacobilewis9603]

Higher or lower rpm shouldn't change your compression

[@jimbojones9665]

I'm surprised it totally stopped the car. 107% effective!

[@SaraMorgan-ym6ue]

yeah but the gear your in determines how quickly it works for stopping you🤣

[@ionbusman2086]

My converted school bus that weighs 30,000lbs and has a gas engine… goes down 10% grades at ease, with no brakes… holds around 55 with pure engine braking. I love it.

[@BlackPill-pu4vi]

I haven't seen gas powered school buses in decades. What do you have? A Ford? If so, what engine? The Ford 370? A GMC? With the 366? Those are the gas-powered school buses I vaguely remember.

[@viceroybolt3518]

Purely for science... butterfly valve it?

[@grabasandwich]

​@@BlackPill-pu4vi the ones I rode on in the late 80s used to sound awesome when coasting in gear! They loved to backfire 😂

[@sqmotorsports9230]

​@@BlackPill-pu4vi I had a 76 Chevy C65 fire truck with the 366, New Process 5 spz and Eaton 2speed axle... loved that rig.

[@ionbusman2086]

@@BlackPill-pu4vi 1972 Bluebird with a 366 in the back hopped up. Original engine was a 478 GMC V6 :D

[@Jack-gl1tw]

To those that may be wondering Jake brakes are very different from this. They do block off exhaust, but not from the pipe. They have a camshaft that switches profiles to close all valves and wait for the piston to reach TDC and then release suddenly that is the pop you hear a.k.a. the signature Jake brake sound

[@cannaroe1213]

In fairness its half a Jake brake :P The engine still has to compress and exhaust gas, but the timing will be all wrong to extract the most heat from the gas like a J-brake does

[@jort93z]

This is called an exhaust brake. It's much more common in europe compared to jake brakes. Our trucks don't really have jake brakes. Over here in europe, not sure about other places, there is also a regulation that it automatically needs to open before the car stalls. Some of them also only close on one of the strokes in order to decrease noise.

[@exvils]

​yeah, never hear about jake brakes until now.. all trucks in Europe have exhaust brake (valve) or electric retarder (48-60V) installed on driveshaft. We also don't have "slow down" ramps for trucks in mountain passes like they do in NA. Also brakes on trucks are quite effective, most trucks brake better than any car would (tho depends on cargo weight)

[@mann_idonotreadreplies]

@exvills cool story bra

[@SHAGG13]

​@@mann_idonotreadrepliesdob😅 scheze ges aust lintsen ATROVE hehh hehe *TWEUTBRÆHSCHENZITE 😈🤘😎 JUEKNOWUTIMEEN

[@explosive_shart9405]

Jake brakes are awesome. Used it from time to time on the Armys Stryker.

[@danwhite3224]

Wow, I never realised that it could be that effective! That's genuinely super interesting.

[@dracolanco]

Great video! This works better than I thought although I think its better to keep this tech to semi trucks.

[@volvo09]

It's helpful when towing heavy loads down mountains. I've never seen it on a gas engine, but some diesels have an exhaust brake option that is literally a butterfly valve near the exhaust manifold. It's certainly overkill for a passenger vehicle though.

[@dracolanco]

@@volvo09 yeah

[@realsonnysullivan]

semi trucks have a similar but realty different system called a Jake brake where the brake effect is created in the engine cylinders. smaller Asian diesel trucks have the butterfly valve in the exhaust.

[@defalt45]

@@volvo09 I would see this a lot in african trucks

[@MiG21aholic]

​@@realsonnysullivan full size Hinos and isuzus at least use exhaust butterfly brakes still too

[@robotcantina8957]

another awesome video! I just wanted to mention the Lada looks so much better with the round wheel wells.

[@Richfart]

Didn't expect you here! Always looking forward to your video's (:

[@robotcantina8957]

@@Richfart I'm a long time viewer of G-54. I'm always fascinated by the abuse they throw at the Ladas and they still run.

[@digitalchaos1980]

Jimbo, good to see you here as well! I’m also a long time viewer of these guys. Love the crazy ideas they have! 😎

[@devoxin_]

@@robotcantina8957 Garage 54 crossover episode? Could be interesting trying to get your hands on a Lada in the US and throwing a few experiments of your own at it!

[@MadScientist267]

​@@devoxin_I think over here they're called "Corolla" or "Civic" 🤣

[@REWYRED]

Cummins has an exhaust brake of sorts on the 6.7 Inline 6 that are used in Ram pickup trucks. Basically the Variable Geometry Turbo is utilized to act like a valve and restrict the exhaust.... They work extremely well.

[@screener545]

VGT is the best because it changes the A/R ratio of exhaust housing. So you get engine braking and the bonus is you get full boost at the same time. Also a small Jake brake like effect.

[@eternalbeing3339]

They make them for the 5.9l cummins as well.

[@GoodToGoIndustries]

I was very surprised when I was a rookie truck driver to find the tractors wheels lock up while driving without a trailer in the snow using the engine brake. Those big rig dynamic engine brakes are amazing.

[@volvo09]

That worked good. The more air the engine has to pump, the higher the braking.

[@schizophreniagaming4058]

Yeah, that's why most higher performance bikes have slip clutches in them. They rev up to 15k rpm with compression ratios somewhere in the ballpark of 12:1 and 14:1. So of course the bikes would need a slip clutch with that much air moving through a tiny engine.

[@jfrankki]

Great welding job!

[@arnaspaltanavicius7195]

Bird took a shit right on top of those welds

[@slowcarshop]

this channel never fails to be interesting

[@deant876]

I have a newer diesel pick up. It has a variable geometry turbo. When I let off the gas pedal the veining in the turbo blocks the exhaust gasses and gives you tremendous braking

[@richardthomas1743]

Do a Fred Fintstone and drag your feet to stop!!

[@busyguy7479]

well vlad you are definitely young at heart , keep working on your projects its good for the soul kudos.

[@johngillon6969]

could you show us how to make a Jake Brake? Truckers in the united states use this supposedly to save brakes, but in reality it makes these trucks sound soo cool that they make it illegal in some areas. It plays the most beautiful song on a long down hill.

[@petelattimer6808]

its because of the noise that most places use exhaust brakes instead of Jake Brakes. Jake Brakes essentially vent the compression from the engine, from what ive read. we havent, to my knowledge, ever used Jake Brakes in Europe, only Exhaust brakes like this.

[@samsungtvset3398]

Jake brakes open the exhaust valve at the top of the compression stroke and let the compressed air out in a sudden noisy burst for each cylinder in turn. Hence the cool sound. The energy that is used in compressing the air is lost instead of being recouped on the following downstroke and so the engine acts as a braking load.

[@aaronneher4860]

They do save brakes. Mostly used for hilly mountainous areas. When used with an exhaust brake they are incredibly effective and will basically double the braking power of the engine brake. There are two different kinds of jake brakes though. One is loud and the other is called a weeper which is a lot quieter. But with a weeper you miss out on the song the engine plays

[@johngillon6969]

@@aaronneher4860 music is important, is it not?

[@cheyenneleith-yd2ub]

Trucks have something similar,it's called an exhaust brake, love the videos guys,all the best Cheyenne

[@kennethcohagen3539]

That might be effective in a 4X4. I used lower gears to crawl down hills and it worked great. Engine braking might make things go slower without wiping out your brakes.

[@emonvidaly]

Exhaust brakes are already a thing. They overheat. So you won't be braking for a long time at low speeds.

[@leon419]

For maximum efficient engine braking, also known as Jake brake or Jacobs brake, you need to keep the engine in a high rpm range, on diesel tractors/semis the recommended rpm range is between 1800 - 2100 rpm.

[@genehunsinger3981]

1:42

[@LegendaryWaterBottle]

In gasoline cars, engine braking isn't caused by compression, but rather it's due to vacuum in the intake manifold (throttle body is closed while pistons and valve movements keep trying to suck air). Effect by compression is negligible because once piston reaches TDC, the compressed air will work pushing down the piston - effectively equal work put into compressing air and air pushing back after TDC (if we negate the effects of friction). Semi trucks with jake brake on the other hand, will compress the air and valve will open to let the compressed air out (thus creating the notable engine brake sounds).

[@cannaroe1213]

The compressing of the gas causes it to heat up, and that heat goes into coolant. Total vacuum = total compression if no fuel, so it can't be vacuum but not compression lol.

[@LegendaryWaterBottle]

@@cannaroe1213 Well, I have never mentioned anything about fuel and combustion in general. The vacuum is in the intake manifold due to throttle body being closed and engine being a basic air compressor powered by kinetic energy (movement of a car).

[@erikcourtney1834]

The engine needs way more compression to work better. That’s why exhaust and engine(Jake brake) braking works so well on Diesel engines.

[@samsungtvset3398]

Try it again with the ignition turned off and the throttle fully open for maximum air flow through the engine so hopefully more braking effect.

[@jannekarppanen9346]

Nice welding 😂

[@snakehead3650]

I suggest connecting a switch to that emergency brake lever to kill the engine, open the throttle to let more air in to boost compression and have it in 2nd or 1st gear.

[@twocvbloke]

Engine braking's something they seem to forget to teach a lot of new drivers these days, and yet, it works so well...

[@QuakeGamerROTMG]

Gotta love riding a motorbike through mountain roads, you get a lot more of the air and smell than in a car and all you get is the unbearable smell of fading brakes from all the incompetent drivers coasting down the hill riding the brakes. I'll never forget when I got my licence and the first time driving down a steep hill I automatically dropped it a few gears to the surprise of my dad who was teaching me and hadn't said to do it. Was very confused like "uh yeah isn't this a common sense thing", well young me I can safely say that common sense isn't all that common.

[@twocvbloke]

@@QuakeGamerROTMG Common sense has been bred out of people, seemingly to make people more incompetent I guess...

[@VintageCR]

this 'invention' is great for really heavy trucks or other big vehicles to have as a braking assist!

[@TAKIZAWAYAMASHITA]

this is already common on big trucks lol

[@johngillon6969]

It's called a Jake Brake, and it actually releases the pressure in a way. if you want to know more google it . they can explain it much better than i can.

[@VintageCR]

@@TAKIZAWAYAMASHITA i had no idea this was already a thing lol

[@VintageCR]

@@johngillon6969 ty :)

[@TAKIZAWAYAMASHITA]

@@VintageCR oh lol yes this has been common on big trucks and other large vehicles for well over 70 years.

[@Hjominbonrun]

This guy is a man's man. Manliest of men.

[@adams1625]

This guy is a savage LOL living the dream making contraptions in his garage and making money from it hahahahahah epic

[@TrueSucrose]

Considering that this is exactly how some exhaust brakes on smaller trucks work i knew this was gonna be a good one

[@antonioZaRasFiNaLbOsS]

By the way, a retarder is a bunch of friction discs or in some cases, a thing that uses magnetic force to slow down heavy vehicles such as trucks as to not overheat the main brakes

[@Dustii91]

These guys deserve 1 million followers❤

[@michaelmays9292]

These guys are brilliant mechanics

[@charliepatterson9321]

I've been watching for years . This guy is the best inadvertent Lada salesman. I would love to have one . I would rather own a Lada than a Tesla !

[@dejdehddh]

2:22 what in gods name is that weld??

[@trappingoku3640]

I hope to see this on semis one day, plus it would help with the sound people complain about.

[@simonkolar5478]

Those welds... Oh my god!

[@evgenysavelev837]

This does work very well, that is why heavy diesel trucks have Jake Brake.

[@zachduncan6421]

Did the shop mouse weld that butterfly valve up😂

[@matrix2963]

Watching u from Macedonia for year or two, how u always have some crazy ideas for videos haha :)

[@tomvanmalsen6223]

10 out of 10 for the welding job.

[@GHOOGLEMALE]

Great test - used commonly on all trucks of course. Hows about a look around some of those old cars you have laying about there!

[@viceroybolt3518]

OK, now in the name of *practical* science... you should do this to a big rig and drill the butterfly valve so that while fully shut the engine just barely idles

[@fs5866]

Modern vehicles have this thing already where you can set the level of engine brake which is done with the help of a valve installed in the exhaust pipes.

[@SLAYERCAM]

engine retarders or engine brakes are also called Jake-brakes and have been used in diesel semis forever. Having been a trucker, I can tell you that they do their job when at proper speed, rpm, gear, and incline or distance needed... but always have that clutch and brake at the ready near the end !!!

[@eternalbeing3339]

They must not have them in russia.

[@RobsNeighbor]

Love this! How did I miss this! Great video

[@didntpassananan6569]

but by the way, the lada suspension is unexpectedly good😮 how you can run it over a surface like that, and still absorb the bump that well😅

[@MrLarsgren]

how about making a variomatic like used on scooters ? i always wondered how it would work if used on something with a gearbox too.

[@wojciechbieniek4029]

CVT's are already quite common in cars

[@shawnsatterlee6035]

@@wojciechbieniek4029 and they r pure shit!

[@a64738]

My 1,9 liter Ascona B 1976 model had so much compression that you could do hand break turns in winter by just go down a gear or two and dump the clutch ;)

[@Miner-49]

You guys always make great content. Some of it may be goofy and over the top but interesting. I’m still waiting on the garage to happen across a new breakthrough.

[@celboss]

Honestly, who would choose muddy, bumpy, watery road for brake tests with old car?

[@danbergthold3481]

Vlad.

[@willart1735]

If you incorporate, engine braking and compress the air in an air tank, regenerative braking and charge a battery, aerodynamic braking which could also charge the battery (not by much) with a mass engagement on the fly wheel i.e. material that was not spinning but you'd need to get spinning through engagement...you'd be able to use the electric motor on take off and the compressed air you stored in an air tank which you can reuse through an injector in the intake to increase compression plus the spinning mass would provide great initial torque to toss the car...I wonder how fast you could actually stop without normal brakes at all plus how well could you take off I'm sure there's added weight but would still be a cool invention to say it's been done.

[@vincentrobinette1507]

The problem with a gasoline engine is that the intake is restricted when your foot is off the accelerator. This exhaust brake would be much more effective, if there was a valve underneath the carburetor that would allow full airflow into the intake manifold. This type of retarder would be MUCH more effective on a diesel, because of the open air intake, allowing air to be pumped into the exhaust with no accelerator pedal. With a gas engine, you need a valve, to open the intake to air, without drawing fuel through the carburetor. As a simple test, try putting it back into 3rd gear, turn off the ignition, and floor the accelerator pedal. That way, the engine would act more like a diesel.

[@grugbug4313]

Solid! Top KEK! Peace be with you.

[@elijahschool2725]

i wonder if you could shut the flapper valve really fast to slow the engine down for faster shifting as well as cutting fuel and ignition

[@frodo3947]

Im curious if oil after all this clogging and engine breaking is still good, or maybe is getting damage faster

[@dummy3333]

It's like the exhaust brake on old Ikarus buses. IDK how common this type of retarder is nowadays. Cheers from Hungary.

Video idea: compress air with engine during engine break, and use the compressed air when accelerating = you save the internal combustion engine by increasing efficiency :)

[@mickwolf1077]

I was going to make one of those for my diesel but read that if there is too much pressure in the exhaust then it can push back on the valves and open them when they shouldn't and possibly make contact with a piston. So i didn't start that project.

[@HA05GER]

interesting to see if affects fuel consumptions. if the engine cant get air out as easy then one would assume it cant get it in as easily, so assume less vacuum on the carb.

[@peterduxbury927]

Why not also put another Butterfly Valve at the Carb. Inlet? What happens then? Putting thicker gearbox and Differential Oil would also make a big difference to the cars' retardation by adding a Transmission Braking effect also. Problems would happen if cars were designed like this, particularly on icy or wet greasy roads.As if by magic, the Lada would turn into a Carousel Fairground Ride.

[@markwarburton8563]

The Prius also can use engine braking, even from the 1st generation.

[@yodad4776]

Love your channel it's like a cross between jackass and MythBusters I love how you guys to ridiculous stuff just cos

[@cmauchi29]

It’s a very good accessory for a Niva.

[@MadScientist267]

Pretty sweet. Ok what about no spark/second/throttle plate wide open/retarding plate closed? I already know killing spark will add to the effect, and opening the throttle plate will give it more air to compress, increasing the load.

[@caseyjones1999]

I feel like there's nothing a lada can't do! I live in a rural area and I often think that would be a pretty economical vehicle to have

[@anibalbabilonia1867]

👋😂👍I love how he recommends this to anyone doing it to their own car’s! I call that a successful test!👌😂👍

[@jarethhogan3274]

You should make a Jake brake for the diesel lada

[@AaronFergFerguson]

Those are some dimes!!

[@rushnerd]

The next Metro game sure as hell better be like this.

[@DBHHellhound]

Those welds looked atrocious.

[@VFio689]

What if you force air back into the exhaust to the engine via a leaf blower or turbo lol

[@wrenchntwist133]

Just put and electronique valve in the exhaust system when you brake the valve close all the way up

[@grad13nt1]

the side jokes yall slip in crack me up.

[@philipgrobler7253]

An excellent idea for a new unknown anti-theft device.

[@merwindor]

4:50 the odds of the power going off in town is high

[@kiwikrankers]

looks like they got the apprentice to do the welds on this one lol 2:52

[@ashiehakoto1490]

seeing that old lada bombing down that dirt hill makes me wanna go do some rallying.

[@mrdavid-t3w]

démonstration intéressante .. et bien sur un ralentisseur sur echappement ,il faut retrograder .. monter le régime moteur assez haut et l'utiliser comme il se doit ... ca n'arrete pas le véhicule (car il doit se déconnecter avant le régime moteur du ralenti) mais le ralentit !

[@nagyandras8857]

you allso need an intarder. that blocks the intake. fetch one readily available from an mtz tractor. then you can block both intake and exhaust.

[@fullmetaljacket7]

2:44 that's the nastiest weld I've ever seen lol

[@cameronboan627]

You should try one that blocks off intake I think that would be much stronger

[@sqmotorsports9230]

Every car has that. It's called a throttle

[@coryernewein]

Just to be difficult and German I have to say this is an exhsust brake and not an engine brake🤓 Good vidjéo guys!

[@MrGsune]

nice welds

[@RetroScythe]

You should call it "The head Gasket stress tester"

[@Iaintwoke]

That's how exhaust brakes work. Just a simple air controlled baffle on a truck exhaust.

[@CanadaJ]

Great stuff!. Send the Gas back into a Turbo for turbo engine braking!

[@DataLog]

Nobody here understands the 107% reference hahaha These guys are risking their lives.

[@ollieprevett7984]

try making a variable valve compression brake, like on a diesel truck!

[@smilydrop]

I would like to see this on a turbo car imagine the sound created by air going the wrong way through the turbo "the stututu sound"

[@Josh-wf7de]

This is something light duty trucks use as their engine brake. Already done

[@mrfilmer9270]

What car did you use in the beginning? I really like how it looks

[@crown674]

It's a VAZ-2101

[@mrfilmer9270]

@@crown674 thanks!

[@thefloorkiller]

I'm sure some heavy vehicles had systems like this fitted

[@blahorgaslisk7763]

This is commonly used on large diesel trucks for increasing the engine brake effect. This makes it possible to drive long stretches downhill without having to rely on the main brakes and risk brake fatigue.

[@farmdve]

Does this (and the video) improve fuel economy somehow?

[@blahorgaslisk7763]

@@farmdve No it doesn't. Engine braking is something only used to spare the brakes. Well in a modern car engine braking means the fuel injection will be cut when you're engine braking, so I guess that would save a few drops of fuel compared to the engine idling while you slowed down using the brakes instead. But for all relevant purposes the answer is still no. Neither engine braking nor a exhaust brake to improve the engine braking in any way improves your fuel economy.

[@kaizen0093]

could you do 3d printed wheel nuts make sure its nylon carbon fibre as its strong and test them out on the car

[@motorenbastler9289]

would be perfect for Diesel engines. For gasoline engines you would need to have the ability the trottle wide open without adding gasoline

[@trm4life]

Well done! 👏