Porsche's New 911 Engine Is Absolutely Brilliant - Formula 1 Tech!

[@EngineeringExplained]

**Important Note!** If the engine makes 420 lb-ft, and the e-motor makes 110 lb-ft, why isn't peak torque 530 lb-ft (420 + 110)? Instead, it's 449 lb-ft. This is all about when & where peak torque occurs, and it is different for the engine and the electric motor. At low RPM, before the engine is making it's peak torque, the electric motor can provide its maximum of 110 lb-ft, giving you a huge boost in torque, but at an RPM where the engine can't provide much. As you get to higher RPM, you become more reliant on the engine (rather than the e-motor) for torque, so the peak value is 449 lb-ft. For power, the peak engine power (478 HP) and peak *continuous* motor power (54 HP) do line up, so you have 478 HP + 54 HP = 532 HP peak total system output (at 6,500 RPM). I should have included this in the video, hope that clears things up! *Edit 1:* For clarity at the end regarding does Lambda = 1 mean less power, my response of "no" is in response to the target power Porsche is aiming for. Could running rich mean more power with an aftermarket tune? Absolutely it could! Running rich is a tool of reducing combustion temperatures. This means you can potentially further advance ignition timing, and thus make more power. My statement is simply regarding Porsche's goal for the power output of the unit. The previous unit was already capable of running in the vast majority of use cases at Lambda = 1, yet it wasn't a talking point regarding the "low" output of the engine based on it stats. This segment was largely to address the innaccurate reports of this engine running higher boost, and being larger, and yet only making 5 HP additional, which is not true. The engine is ~20% larger, and runs ~10% less boost, so there's roughly a ~10% power drop relative to airflow. Thus it seems the peak potential is held slightly, but only slightly, not a massive deficit as some outlets are reporting. And the fact that Porsche was already running Lambda = 1 (in most use cases) further solidifies this; they were already capable of it, they just covered up some edge cases with the new strategy on the 3.6L.

[@Dibbler613]

You lost me on lb-ft. I need Nm.

[@BIGC728]

@@Dibbler613 Do some simple math nerd

[@adamolig3865]

@@Dibbler613 need vs want issue

[@Cluuey]

That all sounds very clever. Any idea how long the electric motor in the turbo is going to last in such a hot location? An explanation of how electric motors feed power into the drivetrain would be nice, I've thought about it a bit but I'm not cluey enough to work it out. 🙄😏

[@fwebe2871]

@@Cluuey The exhaust turbine is used as a electric power generator and the generated electricity can be used to directly power the crank shaft, when no more bosst is needed or to power e.g. the A/C. It uses parts the otherwise wasted energy (thats what wastegates are designed for), which in return increases the overall efficiency, which usually is a benefit in overall power as well.

[@HexenMeister4187]

As an engineer in exactly this department at Porsche, I have to say, that's a perfect presentation of what the team did 😊

[@EngineeringExplained]

Well this is just so rewarding to hear! Hats off to your team!

[@Lincos321]

You know you have to hire him now, right? :)

[@adrianishtar0]

When he says that the lambda restriction doesn’t make a difference, do you agree? Or would your team be able to capitalize on an emissions unrestricted system?

[@cupcakke1294]

@@adrianishtar0 you didn't watch the video did you?

[@adrianishtar0]

@@cupcakke1294 Of course I did, otherwise I wouldn’t know that he claims that the e-turbo makes the lamda restriction irrelevant at 16:03. My point is, it’s actually an insult to the Porsche team to imply that they wouldn’t be able to make a better performing system if the lambda restriction was removed. Engineers pride themselves in being able to take an inch and go a mile, so clearly the lambda restriction is limiting what the system could do. Yes, this requires you to think a little instead of reflexively defending the statements made in the video.

[@austinhunter7732]

ONE is LESS than TWO... glad you clarified that for me, almost got lost in the math.

[@Ioanides001]

It's not like most of us majored in Math!

[@bandwagon240]

Instructions unclear, genitalia stuck in ceiling fan.

[@EngineeringExplained]

No problem, here to answer any questions. Try to keep numbers below 10 though, I still use my fingers.

[@furkanozden7563]

well that is probably confusing Terrence Howard

[@ThePwig]

I think he meant to say “fewer,” actually.

[@birgerjarl4391]

F1: Lets remove the mgu-h it not commercially relevant Porsche: I'm gonna have to stop you right there

[@king_br0k]

And they are not even a participant

[@groundhabit6408]

Note even the reason why they removed it 😂😂😂. It’s to bring more engine noise and reduce the overall weight for new regulations

[@garmack12]

I thought it was because none of the teams ever managed to make them reliable

[@anydaynow01]

@@king_br0k Isn't VW using the Porsche engine as a base for the one in the Audi car, or are they starting from the ground up?

[@King_Cole]

@@garmack12F1 cars & engines are incredibly reliable today compared to past standards. For F1, I think removing the MGUH is more an effort to reduce complexity but it’s sad to see it go. Such a clever innovation when Mercedes introduced this to F1. Porsche shows an MGUH is even relevant for road cars. I would not be surprised to see this in more affordable cars over the next 10-20 years. The benefits are pretty clear.

[@robertcorbishley1712]

As an engineer at Mahle Powertrain who worked on the e boosted red top down size engine I'm sure we could arrange to give you a tour of our facility and show you the next generation of Lambda 1 engines coming to market soon along with a bit more of an explanation of how we control temperatures with advanced combustion systems.

[@robertcorbishley1712]

And I could learn punctuation...

[@RaihanSaputraa]

please send him an email, i hope EE can have a tour and share it with us!

[@EngineeringExplained]

Robert, please shoot me an e-mail - that'd be awesome! ([e-mail])

[@johanbjork1650]

Jason to Mahle. Why do I all of a sudden feel like Mexican food?

[@BrattyBiker]

Are Rotary engines being researched on at MAHLE as well ?

[@eeeehuu2130]

I love how every brand goes: hybrid -> smaller motor Porsche goes: hybrid-> bigger motor. 😁

[@BlacKi-nd4uy]

i also loved the way bmw did in the 80th, when they engineered an engine to save fuel by increasing engine size. i owned and drove it for some years. it was incredible powerfull, but still efficient. look for the 325e (eta).

[@uliwehner]

@@BlacKi-nd4uy did love mine for 25 years and 250k miles

[@pipeborrero]

AND bigger turbo

[@fridaycaliforniaa236]

@@BlacKi-nd4uy I've always been told than it's better to have a big slow engine than a raging little one. There's a reason why ships diesel engines are big. You would try to extract 6000 Hp from something the size of an APU...

[@pasiutrial]

Toyota is always putting bigger motors in their hybrids compared to ICE only predecessors. So does Honda.

[@sevegarza]

Just brewed myself a cup of coffee and then EE drops this? Perfect morning.

[@tizodd6]

Sounds like the start to a good day.

[@heistkev]

Same! Coffee and this.

[@marcinsmolinski903]

its 5pm and dinner now at mine

[@stephanalbrecht7889]

It's popping a beer time over here 🙂 cheers!

[@EngineeringExplained]

Love this beverage train; alright grabbing my coffee while I peruse the comments!

[@koolpep]

German engineering students have a top list of companies they want to work for. Number one spot for decades: Porsche. Porsche can choose ANY top talent from German Universities at will. And they do, so they end up with brilliant engineers developing brilliant cars. I drive a Porsche and I get humiliated every time on the track by my car, it’s always secretly telling me: “That’s all YOU got? I could do a lot more you know? “

[@cscheid]

The problem ( in my opinion ) is the engineers they hire seem to have never worked on a car before. Some of these new Porsche's are so ridiculous to work on, odd placements, odd executions. Sure it all works incredibly well, we all know that but when you have to work on them GAWD. I also find it unbelievably annoying that modern Porsche's don't have dipsticks, it's a simple thing to execute, why aren't we doing it

[@ProMosab]

​@cscheid just for your information, decision making is not made by a new engineer coming from the University, what you complain about is a general thing in the whole auto industry, eg more things need to be put in a car less space in car making modern cars difficult to work on, also with so many systems/devices need to be equiped this means the need to cut of the prices by quality prices management, because other wise these cars can be even more expensive

[@Jadawin-kk3fz]

Totally agree. Everyone wants to get to the GT and racing departement. Mahle is also a very interesting employer for the newbies.

[@tt-rs1457]

@@cscheid Very very well said, Sir. Hands down.

[@drazenbudis7881]

Sad to hear you don’t get to truly enjoy your 911 tho. Its at their absolute dynamic limit (and ever slightly over it) where they are the most intoxicating.

[@harryj1353]

This is a very similar technology we used on the 919 Hybrid. Race technology always makes it to road cars.

[@wolfkin4198]

What I find really interesting as well is the fact that the e-Turbo now no longer requires a wastegate, and instead the turbine’s rpm can be controlled using the electric motor. So instead of letting exhaust gases bypass the Turbo, we use the excess to generate power for the e-system. Sounds a lot more efficient to me

[@lqr824]

This was done on the last generation of piston-powered aircraft in the late 1940s-1950s. It's nothing new.

[@maxjtj31]

@@wolfkin4198 I think a wastegate just bleeds excess air pressure from the compressor, all of the exhaust always has to go through the turbine (so it can go through rest of exhausts system). You are spot on though, e-turbos are very exciting indeed for multiple reasons. Takes the best characteristics of combustion and electric and puts it into one engine.

[@cw12s7]

13:06 "The car's been sitting in your garage overnight..." Yeah I wish

[@w8stral]

If you can afford this Porche, yea you own a garage. If you can't afford the car, your garage prospects doesn't matter

[@volvo09]

It's ok, there are electric turbos on Amazon for $30, we can all pretend we have this car, it'll be exactly the same.

[@LRM12o8]

@w8stral WTF is a Porche, we're talking about Porsche! Meine Güte, it ain't that hard! 🙄

[@charlesdee63]

But what about the electric motor between the engine and tranny? Does Amazon sell one of them too? Would it be sacrilege to park in in a carport?😅😂

[@DracoOmnia]

If I took out a home equity loan i might be able to buy this car... But it still wouldn't organize my garage for me 😂, only in my dreams do I have a clean organized garage AND a Porsche.

[@BirdiesGoCherp]

I like this dude's humour, he should be an engineer.

[@BurittoSandwich]

He should also start explaining complex car things in an easy way for us to understand.

[@bitelogger]

Mechanical Engineer if I recall from his first videos

[@AliasHSW]

I know…such wasted talent that he’s just a low level wannabe KZbinr and drawing a bunch of colorful nonsense on a whiteboard

[@anonmouse956]

The coldest insult of them all.

[@thinklikeanant]

I am still teaching him to improve his algebra . But it seems he is my most promising student

[@davidepaula]

One turbocharger is less than 2 turbochargers? I bet Terrence Howard would disagree with that!

[@tomgnyc]

There's no such thing as turbochargers.

[@eliasali9383]

Wut ​@@tomgnyc

[@gqh007]

How can it have 1 turbo charger when 1x1 is 2

[@vvevvevvvv]

​@@gqh0071x1=1. 1+1=2.

[@brembopollypor9965]

@@gqh007Because it isn’t😂

[@ishootitarw]

I rode in a prototype Borg Warner Porsche with the eTurbo system. During my time there, there was also a prototype Ford Mustang Ecoboost with an eTurbo system that made close to the same power as its V8 sibling. There's no turbo lag, handles like a naturally aspirated. The larger application eTurbos for hybrid semi trucks can actually use it for regen off engine braking going downhill. Really cool technology, Borg Warner is a cool place with cool engineers. Here's a funny story, when John Deere execs were there for an important board meeting, after it they were offered the opportunity to take a ride or drive either prototype vehicles (Porsche or Mustang). Not one took the offer. Just as boring as you'd expect them to be.

[@JOutterbridge]

Amurica...change costs money and explanations to old customers

[@alexandervanwyk7669]

Simply amazing how they keeps on getting better. For the last quarter of a century I'm still driving my little Boxster every day. Soon heading for a quarter million kilometers, I still adores her. With all three kids grown and out of the house we both are now on retirement mode. The whole family used to race her at various tracks during our club meets. One day after an hour of hard racing we lost the brakes due to cooking of the brake fluid but when she cooled down again everything is simply back to normal. I don't want to boast but it is very possible that I ended up driving one of the best cars on the planet. PS Just today a woman walked up on me and could not get over my beautiful immaculate sportscar. From Africa with love.

[@stantonlee2266]

“Sometimes people on this channel say I lose them in the math…to be very clear, ONE turbocharger is less than TWO turbochargers.” 😂😂😂

[@isobutylquinoline]

But more than 4 hamburgers.

[@DrizzleDarth]

Still lost me lol

[@assininecomment1630]

Why did you tell us _exactly_ what all of us just heard?

[@yeetskeet691]

@@assininecomment1630so you know exactly what they’re reacting to. Have you ever read an article or a book?

[@ColeSpolaric]

The amount of shade and sarcasm in this video is just epic! Well done Jason!

[@aquarocket8165]

That electric turbocharger is incredibly clever

[@KarrasBastomi]

next is V8/V6 with split turbo with electric motor in between a la F1's MGU-H

[@King_Cole]

Honestly more clever than F1. Doesn’t even need a waste gate. That electric turbo is a thing of beauty. Will probably be the future of turbo charging for the next 10-20 years with all the hybrid cars coming out these days.

[@dB_944]

Mightycarmods tried that years ago. Where’s Porsche been??? 😂

[@TheGamingNorwegian]

@@dB_944 Clearly been busy engineering a GOOD reliable electric turbo.

[@lemcakes32422]

whats clever about putting motor on it? they could have done that decades ago

[@highorbit3282]

outstanding presentation, and it's not easy to write neatly on a vertical surface, good job with that too. People used to make copy's of my notebooks in college because of my penmanship and artwork. I had to go to graduate school to learn the actual teaching part! If you're not doing this for a living you're in the wrong occupation. you don't fumfer, say "um" or use any other stalling tactics. Almost every word is where it should be in the sentence, the sentences convey the info clearly and directly. No wasted breath or filler info anywhere, just an excellent lecture.

[@ericmilliot5807]

This was a tremendously badass video for obvious reasons. You know when Porsche engineers are complimenting your videos that you've done a kick ass job! Thanks!

[@josealvarez1862]

Brother getting lost in your math is exactly what I love by this channel please keep doing what you are doing. You are an educational gem in a sea of ignorance.

[@skinnladen]

This video is absolutley amazing. Your skill of explaining combined with the well balanced tempo and effective flow of information resonates so well with my 🧠

[@EngineeringExplained]

Love to hear it! Thanks for watching 🙏

[@rodtronics771]

@@EngineeringExplained you're the goat

[@993mike]

This new hybrid generation has a LOT of changes. I would be a a bit cautious about being an early adopter the first year or two, as even the master of reliability - Toyota - is having issues with the new generation turbo / hybrid motors, especially the V-6, in their new trucks and SUV’s

[@skinnladen]

@@993mike my wallet takes care of the caution for me 😂

[@OJViews]

Great video. Im not an engineer or mechanic (lost love at a younger age) but being able to guess the differences and understanding much of it got me really excited about cars again.

[@maced071]

I love your channel man. I’ve been following your for years and I own a small mobile mechanic business. You’re engineering background and the way you provide information in a collegiate form really works for and helps me. I appreciate all the effort you put into your whiteboards and the information and “math” lol you use. If people can’t understand your math and numbers, that’s on them because you put everything into Laymans terms as best as possible.

[@matthewquinn937]

that comment about clean air being good killed me

[@hunterreeves6525]

Better air, better brain, papa johns

[@pjay3028]

Well, I didn't get it....!

[@adrianishtar0]

In the context of the real polluters (industry, agriculture, and aviation) there is really almost no significant impact of unrestricted emissions for Porsche cars.

[@ShimmeringSword]

@@adrianishtar0 and yet it is also explained that you're not losing anything by having it run clean. Inhaling bad air does make you dumber, so, take the joke as it lands.

[@adrianishtar0]

@@ShimmeringSword You are actually losing performance by having it run ‘clean’. If there were no emissions restrictions the Porsche team would undoubtedly be able to design a higher performing system.

[@rogerokeefe3799]

Thanks Jason, enjoyed seeing you in front of a very busy board and for making it clear that one turbo is less than two!

[@MuchoBoosto7]

That “Papa John’s” joke really got me 😂😂😂

[@bnadembnadem8866]

And i don't get it !😀

[@jameshatton4211]

3 things. 1. When do you get to test drive one? The demo of the McLaren was epic so the Porsche seems additive to that performance! 2. More emphasis needs to be put on "when" the electric motor can be made to work..... It's essentially an electric super charger direct driving the engine crank? Let that sink in a little 3. What compression ratio does this boxer 6 run? Is it any different or is there just an increase in displacement? I would love to know what water injection and unlocking more boost from the e turbo could conjure up? It's definitely a wild consideration

[@charlesdonly776]

We have known this for years from Porsche. We have a 2012 cayenne s hybrid and have enjoyed most of these benefits including sail mode. The e turbo is a great addition.

[@adamsvette]

Dude the burn on the emission complainers at 12:21 was hilarious 😂 10/10

[@modal_derp]

Your comment exhausted an extra pun for me, increasing the efficiency of the joke.

[@maxpowers3732]

How much will the air quality change based on ruining low production, low mileage sports cars engines? Maybe lookup straw man argument. No one is arguing against clean air, but having governments force cars to meet standards set by politicians instead of what people actually want to drive.

[@neurofiedyamato8763]

Agreed. It was great lmao

[@FernandoTRA]

😂😂

[@NosferatuandFriends]

If he had a bit more nitric oxide in his bloodstream he'd weight more than 110lb.

[@fransb8543]

Jason, I'm in awe of both Porsche's engineering and your excellent explanation.

[@yevdavydov2573]

Gotta love that Porsche, the only sports car manufacturer NOT in Formula 1 are the first ones to democratize what is essentially an MGU-H for a production car.

[@ederss7]

This Porsche tech comes from the Le Mans 24h, Porsche 919. Le Mans had hybrid tech before F1.

[@patthonsirilim5739]

@@ederss7 yeah much better then f1 desgin since le man 24hr basicaly stress test the hell out of the system for 24hr straight and 24hr of leman has to focus on durability reliability and energy efficeincy those factor are a far greater criteria then f1 so its a much more relevent design factor for road cars.

[@MH-ev3wr]

Totally, and when something goes wrong there is a team of people and an open checkbook to fix it, just like in F1.

[@patthonsirilim5739]

@@MH-ev3wr yes major repair can only happen before the race and after the race once the race start things like engine internals and gearbox are set either yor car make it to the 24hr of leman or you dont thats the beauty of the leman 24hrs you have to make the car as fast as possible but also as reliable as possible making the tech much more relevelent then say f1.

[@jesseturner9865]

A lot of Mercedes AMGs have this too.

[@SSDDOOGG]

Thanks for the comprehensible explanation. Would this engine have more potential for tuning than the older engine?

[@davidreed9046]

Great explanation. I appreciate how you break things down. Especially something this complex. Porsche is showing the world that new tech is not always about making cars faster, but rather making them more efficient in more environments.

[@jonathanstokes7791]

Genuine question; when the electric turbo is using its electric motor to compress the fuel/air mixture, does it also power the exhaust impeller? If so, does this suck the exhaust gases out faster, and does that provide a performance advantage?

[@327efrain]

That is a great question. Commenting hoping he sees this and answers.

[@forzer45]

I would think that they share a common shaft. At least in F1 they do, and imo it would be easier to do with the bearings etc being on a common axle.

[@edonveil9887]

Second question still unanswered... would the spinning reduce exhaust back pressure? My guess is "not" as it would imitate the boost side.

[@riccardogavanelli1076]

16:13 😂 got me there for a sec! Anyway what a clear explanation. Thanks! Please don’t ever abandon that white board ❤

[@shakesnbake]

I love that Porsche did their take on a hybrid. I wonder if there will be a bi-t-hybrid in the next Turbo S? Can't wait till you breakdown of the Lambo 10000rpm V8 hybrid that's coming in the next Huracan.

[@EngineeringExplained]

Lambo video will happen! I’ve got some interviews with them soon (unique info!), so the embargo date is pushed out to August. But it’s coming!

[@anydaynow01]

Yeah between the knowledge VW has with their Porsche and Lamborghini performance hybrid engineers, and their close relationship with Rimac, their Audi F1 entry shouldn't be wanting for PU engineering talent! Combine that with those deep VW pockets and Audi might actually have a shot.

[@shakesnbake]

@@EngineeringExplained awesome 🙏

[@lemcakes32422]

@@anydaynow01 all started with the Nazis

[@AlessandroGenTLe]

Well, they did it quite few years ago (the take on the hybrid) with the Panamera...

[@rishi5714]

bravo Porsche! I see this is perhaps a most ingenious efficient power train design in history of car thus far! The balance of weight / power / range / energy efficiency gotta be the best can be for auto design today. I'd bet! However, there is only one potential issue I'm not sure if it should be of concern? As we know turbo operates very hot! So I'm wondering how that might affect the e-turbo electric motor's durability long term? It's a much more complex turbo design, with some sensitive parts & materials! Any thought?

[@therealforestelf]

I used to be very close-minded and misinformed about hybrid engine technology, this is just awesome, love to see this development, very well explained! I'm no engineer but I feel like I've been properly informed and I can somewhat understand the concept. what a smart machine!

[@amarured]

Honestly: This is cool as HECK! Porsche's dedication to the further perfection of their petrol engines is AWESOME. Makes me really excited for what technologies will trickle down in the future! (Thanks for breaking it down for us. Easy, entertaining and informative. Amazing! As always!)

[@EngineeringExplained]

Love this! These kind of comments are part of what makes creating these video a joy - happy to hear it!

[@Berserkism]

God damn the dick riding is extreme in here. This isn't new stuff and was available off the shelf 20+ years ago as a bolt on application LOL.

[@BBingo-v5i]

As always great Porsche engineering!

[@BudgetGamerz]

Really great and I am impressed. But would this be a nightmare to repair?

[@lemcakes32422]

@@BudgetGamerz it should be easier than Toyota to repair

[@Fix_It_Again_Tony]

It is slightly easier at this price point, but Porsche has a heritage for sure. The test will be reliability. That is where the good engineering will be evident. Fast, good, cheap. Pick two.

[@w8stral]

If this was done on a >>2L engine, I would agree, otherwise it is a waste. No one can use that 500HP

[@billymays7210]

@claytonj2024Tesla would fit the bill on that last one…

[@rwilliam99]

Jason, I don't comment much, but I just have to say, I really enjoyed this video. I love how you combine practical topics with math to explain engineering decisions. This was awesome! I've learned a lot from your videos and always enjoy them. Love to see the math behind things.

[@EngineeringExplained]

Happy to hear it, thanks for leaving such a kind comment, and thanks for watching!

[@ninobatistaphoto]

Best car channel on KZbin, hands down, since he started. Never tire of these. Thanks again, man.

[@zeluski]

been watching you for over a decade and got to say, you never fail to impress with your videos. Keep them coming!

[@minicoop78]

The sarcasm in this episode is on the money! Keep bringing it.

[@aarronkelley7628]

Your wit and humor are unmatched, good sir. Keep the brilliance coming.

[@EngineeringExplained]

Very kind, thanks for watching!

[@benjaminwiner6220]

@@EngineeringExplainedDo you think using braking heat for an electric motor wasn’t used by porsche because of the added weight of this system? I’m trying to figure out the difference, between… hybrid and electric systems Regenerative Braking Supercapacitors Electric turbos Electric batteries/motor like on teslas Electric motor on the transmission Hybrid motors on like a prius It might be an interesting video if you described and differentiated each type and their pros and cons

[@alexandermaynard5386]

The humor in this is just 👌

[@feedingravens]

2:05: In the torque diagram you could have added two lines that indicate that the new engine at idle has the same torque as the old engine at 2,000 rpm. Meaning you can accelerate in the city without gas where previously you already created noise - your neighbours will love it.

[@jamesduncan578]

After watching your videos I always feel smarter then I was. Thank you, You have an amazing way of presenting information.

[@roguedogx]

0:20 I thought all engines sucked. That's how the air gets in. Lol

[@seashackf1]

😂 they do and the bigger or boosted they are the more they suck.

[@whocares264]

they also blow

[@theotherguy6951]

@@whocares264They don’t blow, they fart

[@DonLee1980]

Just as Formula 1 said they were to get rid of MGU-H for their engines because they would be too complicated and have no usage in the real world, Porsche said, I'll have some of that.

[@09juliancarr]

Ironically, they had to get rid of the MGU-H for Volkswagen Group (Audi & Porsche)!!! Also, there is no wastegate, as you just use the MGU-H to get rid of the excess energy

[@DonLee1980]

@@09juliancarr and they dis-allowed front brake re-gen (which is the majority of braking energy goes), in case Le Mans experienced manufacturers have any advantages for the 2026 formula. absolute ridiculous...

[@petouser]

​@09juliancar More ironically, they already developed MGU-Hs in WEC LMP1 😂

[@09juliancarr]

@@DonLee1980 yeah, it’s disappointing , but understandable. F1 has a specified weight distribution and front MGU-K would impact that. Plus they will not want driveshafts as another ‘blockage’ to the underfloor

[@09juliancarr]

@@petouser So I guess it must be Audi that objected. Porsche were not even going to be ‘doing’ the power train… it was a naming exercise using Red Bull Powertrains. Really do not get it

[@Book_Of_RH]

"More power, more torque, wider torque curver... better emissions; Papa John's" LOL kills me every time. As a math nerd with ADHD, I admit sometimes I get a little lost in the math- never made it this far in my studies, but got to calc & pre-calc at least. It mostly makes sense, and if I start to fall off a little, there's little gold nuggets for me sprinkled throughout- Thank you Jason! Genuinely learn quite a lot from your videos :)

[@murrieteacher]

How did I miss this comprehensive explanation? The KZbin bell notification does seem to fail sometimes. And the note and the Edit 1 really does help too.

[@drizzd1]

I have been screaming to the heavens for a manufacturer to do this kind of idea for years. I am unbelievably hyped

[@maxjtj31]

Same man. Kind of the ultimate form of the combustion engine.

[@PaddiAkk]

"One turbocharger is less than two turbochargers." I follow your channel especially because of the math, bro! This joke was awesome :D.

[@solitivity]

You saying what you said and ending it with "Papa John's" is like a good sneeze finally coming out after your nose has itching for a minute. 😭😂

[@EngineeringExplained]

😂😂

[@V100-e5q]

Very good and easy to follow explaination. I wish I could be that clear and easy to express myself. 18:07 Slight critic here: The backpressure develops with the small turbocharger because of its lower volume (lower gas throughput). Small diameter = more resistance. Okay. That you are trying to remedy with a larger turbo. But that comes with the disadvantage of more delayed action. So you put an electric motor in to help it spin up. (BTW, that concept was once called a compressor. An individual air pump driven not by the exhaust but by outside power (electric motor). Nothing new here. Used on Kompressor Mercedes.) So why can't one use an electric motor with the small compressor/turbo in the first place? That has the advantage of shorter response (smaller diameter fans spin up faster) than a larger turbo. Because the reason for the larger turbo is because of it being driven only by the exhaust gasses. Once you install an outside source of propulsion that point becomes moot. I see larger volume vs. outside motor as alternatives.

[@fmmchannel6365]

To be honest this is what i have been thinking about electric turbochargers about the engine and stuff on big turbos eliminating the need of 2nd turbo to reduce lag. I didn't know about this lambda = 1 stuff though. well done Jason for explaining it!!

[@sandman2b]

Another wonderfully thoughtful, informative and too easy to understand than it should be video. Bravo! Also, I appreciate the added *Important Note!* clarifying the peak torque that the ICE + e-motor makes...Encore.

[@dyorkii]

This is one of those rare videos that I want to hit the 'like button' multiple times. HAHAHA

[@EngineeringExplained]

Ha, appreciate it! Just make sure it's an odd number of likes, otherwise it doesn't count. :) Thanks for watching!

[@isobutylquinoline]

Can't wait for the 230K fully loaded GTS and $280K Turbo S (without dealer markups). What a time to be alive!

[@cvn6555]

As much as I admire the engineering and improvements, it did occur to me as well that the MSRP will leap upwards as a result of all of this complexity. And that is on top of the stratospheric pricing we have seen in the last 6-7 years. It hits me extra hard because I am finally in a position where I can buy one of these outright but the higher prices keep making me not want to spend such a large amount. Once I get mentally comfortable with the price, it jumps up again. This one will be a huge leap.

[@MrAguayokun]

​@@cvn6555pay for my bus pass for a few years, and know that the savings I get from using public transit will offset the emissions from you, allowing you to purchase a cheaper and quicker car with less complex parts, which also saves you a few trips to the dealer/mechanic for recalls and repairs. New systems like this tend to have a few bugs to work out in the coming years.

[@ThunderbirdRocket]

Nice 👍🏼 job ! Excellent presentation !! Super helpful !!!

[@daftpanda6533]

@EngineeringExplained For clarification, when you are saying "less boost" do yo mean mean _ less psi of pressure _ or _ less air by mass _ ? If referring to psi of boost, it's worth mentioning that the bigger turbo requires less _ PSI _ of pressure to flow the equivalent amount of air as a smaller turbo. As always, great video!

[@pootube45]

loved it 😀 laughed out loud multiple times, thanks Jason

[@EngineeringExplained]

Thanks for watching!

[@hansvanlennep6376]

You know what my toothbrush REALLY needs? An app..... Hahahahahaha thoroughly enjoyed the sarcasm in this comment.

[@EngineeringExplained]

😜😜

[@jkliao6486]

I still don't understand the why certain people think hybrid is automatically not cool. They are probably the same kind of people who thought steam engine is automatically not cool when they replaced horses.

[@TassieLorenzo]

Honda NSX was such a spectacular flop it seemed to poison the idea of hybrid sportscars. Reviews of the Mercedes C63 AMG Hybrid have been even worse than for the NSX (*lots* of complaints of the extra 400kg of the new C63 compared to the old C63). We'll see if Porsche has more success with a relatively mainstream (compared to exotic 918 Spyder) hybrid sportscar!

[@DudeSWEEET]

Not many manual transmissions in hybrid vehicles...

[@TassieLorenzo]

@@DudeSWEEET Honda Insight and CR-Z! Again, they were spectacular sales flops for some reason... It's almost like buyers would prefer to have a bigger engine (emissions/WLTP/CAFE permitting) and no hybrid system at all...

[@gloofisearch]

In the US, most people know hybrids as Prius or any other family sedan, ergo, not cool;-)

[@JoshuaTootell]

True, but we are a dying breed and will be irrelevant soon ​@@DudeSWEEET

[@DavidMarra]

Thorough, quantitative, excellent vid. Thanks.

[@pharmztko]

I actually love this type of hybrid setup a lot more than straight gas powdered or electric powered. The E turbo is very interesting and makes a lot of sense. It’s nice to see how electric motors can help support the gas engines where they fall short without being fully electric and quiet and boring (although fast).

[@3storiesUp]

Exhaust regen is very interesting

[@nowayjose596]

Yeah definitely would have liked to see more info on that.

[@adrianishtar0]

I wonder if it is only at the couple of seconds where you are at high rpm but let of the throttle so that instead of closing the throttle it restricts the exhaust by harvesting its energy with the turbo.

[@DaneRThomas]

Much more elegant and useful than the power recovery turbines used on the radial engines in the DC-7 and Super Constellation.

[@black350Z]

I'm traditionally a Porsche Purists. I hate hearing about LS swapped 911's. I'm a die-hard NA flat 6 boi. But this engine is super cool. Porsche knows how to tech.

[@wolfganghimmelsbach6929]

as always brilliant humor and great content, congrats to Jason and Porsche

[@EngineeringExplained]

Much appreciated!

[@jaymckoskey25]

20 bar BMEP at stoichiometric without water injection is incredible. I would love to know more about the combustion system and exhaust thermal management. In other news there is a small direct torque improvement from running about lambda 0.9, apart from the knock avoidance, that you didn't mention.

[@CaomeiMonster]

Super interesting video. Car engineers are the most humble career professionals, they continue to perfect the engineering that no one cares about, but Jason. Everyone else out there just goes ‘but does it come with a stick shift?’

[@danielbalcan6270]

To "Why?" question the answer would be: In the EU there are implementing new technical rules regarding safety and pollution so the big engines must swipe the turbos with electric motors and things of that kind.

[@EngineeringExplained]

Yep, from what I've read EU7 needs Lambda = 1. But this video explains why they'd want that (TWC efficiency).

[@erkinalp]

@@EngineeringExplained What about NA engines?

[@Bassalicious]

@@erkinalp They can run leaner fuel mixtures by design as the exhaust gas isn't being restricted by a turbine and hence cylinder temps and pressures are generally lower. Even somewhat older NA engines already run pretty close to lambda=1.

[@adamcousins2459]

@@Bassalicious Pre-efi economy engines routinely ran at lambda >1. IIRC the Chrysler slant 6 was tuned to cruise at 16.5:1. That's how they were able to achieve fuel economy in the mid 20mpg range, with sub 9:1 compression, carburetion, and a 3 speed transmission. Insisting that engines run at stoich is one of the largest technological mistakes/scams in modern history. If we would actually focus on reducing consumption through simplicity, the world would be much better off. It doesn't make sense that we are completely ignoring actual thermal and mechanical efficiency, making engines more and more heavy and complex and expensive, when we knew the secret to efficiency over a century ago. Emissions regulations are causing us to consume easily twice as much petroleum than we otherwise would be. It's important to note that tailpipe emissions are negligible compared to the overall carbon footprint of the transportation and petroleum industry. Getting that stuff out of the ground causes way more pollution that actually burning it. Just one more example of regulations that are written by and for billionaire oil tycoons, at the expense of consumers and the planet. If not for emissions regulations, petroleum demands would be much lower, as overall fuel economy would be significantly better. Obviously this would impact profits.

[@pstoppani]

Impressive engineering yet undesirable for so many reasons. I'll take the NA Cayman GTS over this complexity.

[@EngineeringExplained]

I'm with ya on team NA! But this is replacing a turbo engine, and it's going to be SO much better.

[@lemcakes32422]

just get a Toyota Corolla

[@BlasterJunos]

Isn't the Boxster going full EV next gen?

[@lemcakes32422]

@@BlasterJunos where the engine is they can put a motor and battery pack

[@sparkpaul]

NA all the way. This is over engineering, unnecessary complexity, for small benefit with added weight, higher cost and failure rate and maintenance. 🤦

[@UncleFjester]

*My Porsche salesman just texted me ths link to this video!*

[@EngineeringExplained]

You buying now? 😂

[@lemcakes32422]

they have their own sales video about the technology

[@carlitoxb110]

This should win Engine of the year

[@charles2167fr]

I knew a major in applied math could be useful some day - I rarely get lost in the math - though I did appreciate the clarification that 1 IS [objectively] less than 2 😂

[@MandyFlame]

I have a degree in pure mathematics, which allows me to actually prove that one is less than two from first principles. Number theory rocks!

[@benfidar]

Don't call me Shirley.

[@sparky3690]

💀😂😂😂😂

[@jospi2]

I still remember Cleetus Mcfarland with his electric turbocharger.

[@lifeishard1211]

it's not a electric turbocharger, it's a supercharger. turbos use exhaust.

[@TheNiteinjail]

The density of information delivered with charm and wit is astounding... Entertaining and so much info. 👍

[@NielsHeusinkveld]

That time to full torque at 5:51, any info? I assume the slowest possible scenario, i.e. full throttle in top gear?

[@EngineeringExplained]

As mentioned, throttle closed at 2,000 RPM to full boost.

[@BiggMo]

4:17 tooth brush with an app… imagine the data you’re giving away

[@EngineeringExplained]

“It looks like this whiteboard guy brushes at the extreme level. We’ve never seen anything like it!” Jokes aside you don’t have to use the app; they sent me two, one I never connected and it works great with three different standard settings. But if you want to adjust them yourself you need the app.

[@JoshuaTootell]

My ex GF had a toothbrush with an app 5 years ago.

[@TheMadmax0609]

Holy paranoid..

[@MetalheadAndNerd]

The first version from 10 years ago already allowed for sharing of your brushing habits on social media. The idea was to get kids to boast about their teeth brushing.

[@edonveil9887]

Chess players were waiting for this.

[@sethennis3316]

A single turbo 1.6l 3 cylinder would be cooler tho

[@LMBLNCR]

Gr Yaris 😂

[@tool8337]

the snark right off the bat lol

[@wleechua1172]

Hi. Re exhaust pipes. Does a 2.5” to 3.0” pipe be better than a fill 3.0”? Thank you

[@ec296]

Nice one! Just curious if it’ll be hard and expensive for the maintenance down the road

[@HoggCasco]

*If you are not in the financial market space right now, you are making a huge mistake. I understand that it could be due to ignorance, but if you want to make your money work for you.... prevent inflation*

[@SchwiesowLoeblein]

Thanks for continuing updates I'd rather trade the crypto market as it's more profitable. I make a good amount of money per week even though I barely trade myself.

[@HoggCasco]

A lot of people still make massive profit from the crypto market, all you really need is a relevant information and some

[@SchwiesowLoeblein]

You trade also?, I tried trading after watching some videos on < KZbin but still keep making losses, how do you

[@HoggCasco]

No I don't trade on my own anymore, I always required help and assistance

[@HoggCasco]

From my personal financial advisor

[@KLI123456]

I think they were testing this while I was at BorgWarner! There was a test Porsche in the mod garage next to the tests I was running!

[@mbradea]

@EngineeringExplained Jason a fantastic video as per usual, great job on the research /+ explanations. Any way you could do a similar one on BMW’s new 2025 48-volt engines? In particular they’ve FINALLY brought the 48-volt system to the 4-cylinder cars. However they have been SO hush on any of the numbers (torque curve, fuel economy etc.) since I think putting it out on the open would cannibalize their whole likely-outdated 6-cylinder strategy. The power and torque numbers on the 4-cylinders are IDENTICAL to the prior-years, non-mild-hybrid engines, meaning the entire difference must be within the power/torque curve characteristics and fuel economy (due to the regenerative braking). Would REALLY love a proper deep-dive explanation into what they’re actually hiding.

[@wipvanrinkle8525]

Does the electric turbo pull out exhaust gases faster? Same as intake?

[@josephcarastro4318]

What is the function of the black unit attached to the right side of the turbocharger? In the videos air sems to flow in and out of it.

[@frankperera6019]

so what is the different between e-turbo vs e-supercharger

[@charquail]

I love these breakdowns! One turbo is less than two turbos, great opener! 😂 Here's a content suggestion. There's a pretty big controversy on the AMG side where they get rid of the V8 for an I4 in their C63. It would be nice to see this similar breakdown of the C63S versus the C63SE. It wouldn't calm down the hurr-durr V8 roar crowd, but it'd be nice to see the technical breakdown of the new platform. Thanks Jason!

[@YukonDaniels-hv9pc]

So what size turbo would work best with the 6 stroke engine Porsche just patented? Would a turbo work better on the 6 stroke engine?

[@byteborg]

I'd like to know how spinning up the turbo electrically might help with extraction. It looks like the compression and turbine side are connected via a rigid shaft in the diagrams and pictures. So I guess it modifies the behaviour of the exhaust side in low rpm scenarios.

[@Divisionsixty]

This channel is a unchanged masterpiece, keep up the good work ❤

[@mehrzahl2219]

Would water injection be able to do the same, since it lowers egt/cylinder temps and prevents knock?

[@MCui-ns1wu]

Nice video! One small question, in this engine when we suddenly apply a full throttle, is the e-turbo build up pressure faster than the exhaust pressure? If yes, is there a moment that the e-turbo actually sucking or pulling exhaust out from the cylinder? Or a too fast spinning turbo produces pressure rather than vacuum at the exhaust manifold, i.e. pushing exhaust back to cylinders?

[@thepadonthepondbythescum]

1 small turbo per cyl. with a bigger turbo collecting all 4 cyls (per side of a v8). The little turbos have an exhaust "pop-off" valve, those are all manifolded together to drive a bigger turbo. You would have to use a "check-valve' on the intake side with a flapper valve or equiv. Doesn't Toyota have a big little turbo setup? When you show stuff like this... So painful not to have the ability to home brew some of this tech. I was an industrial robot programmer. I could do some of the engineering and would love to play with closed loop individual cylinder control. I would want NOS injectors and two sizes of fuel injectors in the intake ports. EGT, MAP, TPS, ambient air temp., etc So many sensors! What a hobby! Just need a PI controller with I/O solution from Jeff Geerling!