Would you want one of these on your car?? The seem pretty cool! *Don't forget to subscribe!*

Combine it with a hybrid system, and you could keep the thing at full boost literally 100% of the time while in race mode, and in eco mode, it could keep the compressor off and utilize some of the exhaust gas energy to drive the hybrid system slightly more efficiently

Feel it's worth mentioning as this is a Porsche video. Porsches anti lag doesn't work the way you described, they leave the intake slightly open when you lift off throttle to keep the turbos spinning

Me: "Sitting in my 2002 grand voyager 2.4l and thinking about adding turbo to it" 🙈🤣

I swear Merc had an idea really similar to this that they applied to their 2014-present f1 engines.

An electric-driven turbo is similar to Rocketlab's Rutherford rocket engine, which uses an electric motor to drive the turbopump.

The first thing that comes to mind when hearing "electric turbo" is cheap ebay computer fans that barely move air, leafblowers from Mighty Car Mods and Hoonigan with their "Homemade Quad Turdo Setup".

We should all get behind Porsche for everything they’re doing to keep ICE alive

maybe it is just me but i like feeling the turbo spool up that makes the car so much more fun on the street

Smashing vid. I must admit, I do miss turbo lag, it’s brutally enjoyable. Saab’s come to mind 🤣.

I like the concept. The fact that the comp and turbine are electricity separated. Means extra battery's & capacitors could be utilized to spool the compressor instantly . before the exhaust catches up.

This is why I love Porsche, they really are trying to save the internal combustion engine

I miss the Volvo inline 5 and 6 cyl capable of running 87 octane per manufacturer unless towing (all of them typically rated to 3500lbs tow cap.)

really happy to see road cars finally building on top of the genius that was pioneered by the mercedes F1 team with their electric turbo setup. Disconnecting the shaft brings it to the next level.

Very informative video. Thanks mate.

Great breakdown thanks

I think this video miss represents the fundamentals of Porsche's design. This is not a turbocharger it is a power recovery turbine paired with a electrically driven centrifugal supercharger effectively a turbo compound engine. This engine will ultimately be paired with a hybrid powertrain to make use of the power generated by the turbines. Similar in concept to the 1950s aircraft engine the wright R3350 turbo compound except it replaces the fluid couplings with a generator and a mechanical supercharger for a electric one. This concept could potentially double the thermal efficiency of the engine.

I believe a wastegate will no longer needed as if the car has a 48 volt system, the excessive power from the turbi-generator would be just transfered to the battery.

Now new 911 (992.2) is released. They used exactly the same technology as defined here. Well done with your video. No clickbait.

Great video. Thanks!

Mercedes also uses this system for a few years, but its 48V, love the evo...

“Porsche 911 turbo about to get lot faster” this is insane talking from what current turbo s can already do 😳😳

Super cool video Mr.

it would make sense to use it in a 48V hybrid system. you could always regenerate more electric energy from the exhaust gases. so, if you have more energy in the battery, you can use more of that directly with a motor/generator on the drive train.

Wonder if this could/is also used to increase fuel efficiency. The compressor side of the turbo could be activated upon full opening of the throttle, such that during partial load the turbo isn’t forcing air through a partially opened throttle valve, which normally leads to increased pumping losses. The gas pedal then becomes sort of a pressure regulator for the intake, with the computers regulating throttle position and turbo activation; more gas = more intake pressure.

V8 AMG's will gain so much value once all the new ones will only be I4 engines...

Very Interesting, nicely presented, amusing no waste of words and concise,

A danish company did an electric bolt on compressor that you could fit to almost any car 20 years ago. It was a modest boost of maybe 10 - 15% more power, but considering how much better batteries and electric motors have gotten, it must be possible to make a system like this work better than any normal turbo or compressor today.

I love the turbo lag - always thought that was a fun part of turbo!

I've thought about this. It would require a lot of additional weight for the electrical system. Generator + electric motor + wiring etc adds up when you're trying to keep weight as low as possible

Years ago, a man put a small pre-turbo before his big turbo. The NSX he put it on was insane fast... big turbo fast. The key however, was the pre-turbo that removed all turbo lag. Since the small turbo spun up super fast, it fed the needed pressure to the big turbo that eliminated pretty much all lag. It was amazing...

Mad seeing you on here ha, great vid Callum

New Volvo T8 power train used something similar, use the regen electricity to power the electric turbo. But that system may be more energy saving driving but not performance enhance driving.

That sort of split turbo on a hybrid would be quite interesting. The battery pack would put boost on tap while giving you the ability to still drive if you become so boost drunk drunk you empty the ev keg since you would still have the ICE (internal combustion engine) to get by.

Nice video and good explanations on how turbos work . Would love to see a video explaining the Turbo in Porsche Taycan Turbo S 😂 what a maketing stunt/joke that was

Good job 👏🏿

I couldn't be more devastated to hear the next AMG C63 is going to be a turbo 4 cyl, fall of a legend

I'd like to see _turbo-compounding_ return. But there is a loss in efficiency by implementing the mo-gen system.

Very cool!!

Excellent presentation. 👍

I don't see how it can possibly work without some form of electrical storage system, which might be batteries or, just possibly, a supercapacitor. At low RPM, the generator turbo simply won't produce enough power, so there will have to be some storage facility. However, the prime benefit to me would appear to be packaging and plumbing as the exhaust driven turbine/generator doesn't need to be anywhere near the centrifugal compressor, which is powered by an electric motor. However, it is going to need an electric generator powered by a very hot exhaust turbine, and it might be that oil supplies will have to be arranged to both. In any event, we have cars, like some models of the Land Rover Defender, that have those supplementary electric turbos which do seem to work using a 48V supply. That is rated at 7 kW, but it only has to fill the gap until the turbo spins up, and not the full airflow at maximum RPM. With the Porsche design, the electric supercharger will have to be able to feed the engine at full airflow, and that will mean it's going to have to be a lot more powerful. With mechanically driven superchargers, they can absorb tens of kW at full power, and I guess an electric motor driven one will need power approaching that. We'll see if this turns into anything. In any event, this system could be characterised as an energy recovery system from the exhaust gasses which just happens to drive an electric supercharger.

So Porsche is using a turbine impeller to drive a generator, and using its power to drive a boost impeller which pretty much makes it an electrically driven supercharger. When you are no longer using exhaust gas to spin the turbo, it's more of a supercharger than a turbocharger.

Hadn’t heard of this, but that’s pretty cool.

My college autoshop teacher had that quote from Jeremy Clarkson about turbos on the class fridge lol friggin witchcraft it's always witchcraft haha

Germany isn't even ready to give up on coal, no wonder they are holding on hard to gas powered engines :D

Well, Porsche has been testing the upcoming 992.2 Turbo S with a 48-volt system for the past few months...

I loved the oversized aftermarket turbo on my old 87 Buick gn. Gives you a chance to see the other guy smile while you wait for the spool up and blow by. Miss that car

Good to see some nice modern tweaks on what will soon be a museum piece.

Decent idea, it will be interesting if the parasitic losses from running 2 turbine/alternator and compressor/motor setups. I wonder if this will be worth it or just marginal gains

So thats how the new turbo taycan really works 🤔🤔

HVAC fluid returning from the cabin or dedicated loop could be used in an intercooler/ heat exchanger, I really like the idea of an electric boost motor perhaps powered with capacitors that disengages with regeneration and trickle charges once the engine exhaust takes over.

Can't imagine a better clip to demonstrate turbo sound than the Audi S1 Quattro you showed in the 1985 1000 Lakes Rally. Good choice😊👍

Can you imagine this turbo system combined with electronically actuated intake/exhaust valves.. could be the greatest ICE of all time...

Could such a turbo remove the need for an alternator? Would this further reduce drag on the drivetrain?

Excellent, no heat problems, much easier to install

What a lot of car people seem to misunderstand about turbo chargers is that they dont just allow more fuel to be burned due to more air being forced in, but that the combustion efficiency also goes up with higher pressures. You literally get more energy out of the same amount of fuel.

What if you attach an electric motor to a normal turbo so that it could spool the turbo with electricity reducing turbo lag and act as an alternator producing electricity at higher rpms limiting the boost instead of using wastegates

The 6 cylinder could be a v6 turbo hybrid.....if you know, you know

Very interesting

So much for learning anything. A quick 2 second animation on how it may work.. hmm. Thx.

Hasn't mercedes and honda been using split, electronic assisted turbos for a while now in their formula 1 cars? This still isn't new

Dude this is Mercedes tech, their F1 tech actually, and actually the new C63 will use the 4 cylinder with the electric turbocharger and will also be a hybrid.....Porsche didn't come up with this

I came up with this idea 30 years ago and they laughed at me... And yet here it is and nobody's laughing now...

I recently bought an “air fryer.” It’s called the “Turbo Air.” It makes great French fries & chicken nuggets 👍🏾

The thing I don’t get about them still improving combustion engine components is that I’m 2030 many country’s are not going to be allowing the sale of combustion engine cars so for only 8 years the investments surely won’t pay for them selfs

Fun fact : I've though about this a couple of months ago, when I learned about koegnissegg's electric valves, and i was like, what if we could spool up a turbo electrically using a motor and timed it up and shii... If only i was old/skilled enough to have tried to create this.. Welp porche has beaten me 🙁and who knows what if it would actually worked and i would have been rolling in money bruh. Edit: Grammar mistake

Today I was thinking that waters 1700 to 1 expansion ratio would be useful if h20 were injected at a slight and controlled rate into the exhaust stream at the manifold. It seems the extra expansion of the water turning to steam would help cool the exhaust so better for the turbo and increase the pressure allowing it to spool up faster.

Here in Germany, we are still engineering your world, as we always did: Combustion engines and cars, Submarines, Aircraft turbines, Single wing airplanes and Stealth bombers, Tanks, Computers, Rockets and so much more. Good explenation, thanks and best regards from the Porsche development center in Weissach, south Germany

why dosify technology this slow? any mechanical engineer has presented this solution as an exersize in its first signature

For me, the best combustion engine is a naturally aspirated petrol 3.0 I6 with 360 PS at 8300 rpm and 312 Nm at 7500 rpm (just like Honda S2000 but with two more cylinders). That combines everything I like - enough power and torque, small size, light weight, wonderful sound, low complexity, easy maintenance, good fuel economy, etc. Imagine a RWD 1200 kg family hatchback with that inside. Sweeeeeeeeeeeeeeeeeeeeeeeeet! ❤

Yeah make sense to harvest exhaust pressure energy with sort of a electric motor/alternator. Probably to store the energy in a battery that can be used to charge a compressor? Or and to take some work away from the alternator.

Hi, I was just wondering, how do you guys handle the royalties? I mean, where do you find and how do you showcase this footage? Do you pay the brands? Thank you!

Only one side of the turbo is called an impeller just as a side note.

10 years ago I designed a project at engineering school. Nice they are finally catching up.

Small higher boosting engines makes the car more efficient but at the cost of reliability especially in the long run.

It is called adiabatic heating and cooling. When a gas undergoes a pressure increase it heats up only during the change of pressure. It also works inversely where a gas will cool when decreasing in pressure. (frost on a CO2 cartridge when gas is released) FYI it is very relatable to our weather systems and why Santa Ana winds are hot (High pressure compression)

An electric turbo is a supercharger. If you use a motor to assist the turbine in combination with the exhaust gas that’s a diffrent story

I've really enjoyed getting a turbo car, but my licence hasn't 😍

Their engineers must be tenured. Imagine being an engineer working on improving vinyl records today.

Would it be possible to use exhaust gas energy recovered to push extra air at idle for really high "lean burn"

Funny how Saab solved the lag problem nearly two decades ago when upgrading and refining their Trionic 7 engine management system and the B2x5E/L/R series engines. While the 9-3 had been already moved on to fully GM parts bin based model down to the engine in 2004, the OG9-5 was made with Saabs own parts and systems, along side its Opelified cousin until early 2010. There is no driver discernable lag or delay in response with these cars. And while they were at it, they deemed it more economical to simply control the power output of the B235 engine with software and remove all mechanical and parts differences from its manufacture as this made per unit cots drop significantly simplifying both final assembly and the engine plant production. The only difference is the ECU mapping for a different power and torque output, lesser models being lesser. But with the torque peak appropriately positioned towards low-mid range of the engines power band. These engines use the mentioned "anti-lag" functionality of burning fuel in the exhaust for pre-boosting and are capable of adjusting ignition and fuel injection rate at speeds most engine management and fuel injection systems cannot achieve. This is in part down to Trionic 5.5 and later systems using direct ignition exclusively. But more to the point the system is able to pre-empt the need for accel with gas pedal movement rate being a factor in the calculations. Nothing spectacular today in executive saloons or sports cars, but something literally no-one else was doing in the family car segment in 2006 - 10. As a result when it was very likely GM would be selling Saab off, what they did was release the Aero engines map as a free upgrade to any owner of MY2006 or later 9-5 2.3t or 2.3T who was willing to pop down to their local dealer for 30-45min to have it reflashed. And this would not change warranty liability from Saab or GM anywhere, as the engines didn't have mechanical differences. Most enthusiast had been aware of this at this point for years, and had been doing the modification on their own, or with aid of a dealer which would retain the factory warranty. Not sure how many bothered, but the "LPT" version (which, prior to this MY2006 wasn't given an intercooler and used a ECU with out a knock sensor and some other refinements) was configured to a rather pedestrian 185bhp@5500 and 280Nm@1800 . The Aero punches out 260Bhp@5300 and 370Nm@1900rpm, which is quite an upgrade. The 2.0t was similarly homogenized in manufacture and engine optimization taken to its peak but as it's demand had dropped radically they didn't bother with offering it with more than one power output after 2006 and all 2.0t BioPower B205L's make more than the previous turbocharged 2.0t and 2.0T B204L/R and B205E/L/R before it. The consummate revision received the latest and feature full revision of the Trionic 7 system including both intercooling and knock sensing as standard from MY2005 onwards and the final revision of the B205E (2.0t BioPower) makes 178bhp@5500 and 280Nm@1800. These upgrades also included E85 FlexFuel functionality, which was another motivation for further optimizing their mechanicals and use of the Trionic 7 in all models. Yet again increasing power output with negligible fuel consumption due to ethanol having less energy density, but lower emissions as it burns cleaner. The Trionic Engine Management system was further developed in the GM based engines into the Trionic 8, which in the NG9-5 meant that all engines regardless of displacement from the 1.6l inline 4 to the 2.8l V6 had parallel turbocharging with variable geometry turbos as a main feature. The T8 and it's capabilities were about the only thing GM retained and later utilized after sale of the company to Spyker and the IP and manufacturing licenses for the older bits to China. Funny how Cadillacs and Buicks started to appear with parallel turbos in their four and 6 cyl models not long after the sale. :D VNT/VGT turbocharges are another way solve the issue of lower end torque needing a quick spool up (but less boost) and high-end power more pressure than a smaller turbo can give, making a "LPT" model a pointless concept today. Practically no manufacturer is using a single mode turbo these, as a average sized VNT/VGT turbo solves the issue in all reasonable use applications that the average driver could have for his car. When you factor all those little refinements together, direct ignition, pre-boosting, fast enough and dynamic enough of an ECU with a modern VNT/VGT turbo and a competent engine tuner that knows the design and its flow characteristics well, you get all the benefits with zero lag. And zero down side. The issue has been solved. Decades ago. Some manufacturers just are simply not up to the job. As can be seen from their need to both cheat emissions and use less effective and more expensive means to meet emissions standards. Using nonsense like EGRs etc. that are known to cut service life and increase unreliability after only a couple of years of running. And so they prefer to only install the necessary kit for doing it like real men in high-performance versions of their models. And as they are more interested in an arms race over maximum nominal power output, and in this top trumps for the dealership sales reps, "winning" necessitates leaning hard towards maximizing power while compromising efficiency and reliability and emissions and lends itself to using far more complex solutions for very little overall gain. Certainly zero gain in any public traffic use, even on the autobahns. This means using both a complex sequential turbo system with modern VNT/VGT turbos which are boosted beyond their original reliable design parameters and into Aerospace Mean Time Before Failure and parts refit and replacement cycles. Which is pointless, since this means turbos become disposable or need a complete rebuild after around 150 000 km. Maximum power and high boost pressure in the inlet manifold are not inherent values! Increased thermal efficiency with the worship of stoichiometric burn being observed are! No exceptions! Unfortunately the buyers don't share the sentiment and feel like they want to pay for the privilege of soliciting a turbocharger refit and OEM replacement reseller every 2,5 years and paying 850 - 1500e a pop for running the peak of German automotive engineering in 2020. It's sad that efficiency would be about to start selling cars properly, as governments go "green" and start introducing ever higher environmental protection taxes on fuels and making threats of banning internal combustion engines altogether. First their manufacture. Then all of them from public use. Yes, it will be a criminal offence to drive even a museum vehicle with internal combustion by 2050. Period. This is justifiably so as the industry has forsaken the creed of the engineers, and deserve to die for their disgrace. And the they've only themselves to blame for causing the outrage of users and feeding the politicians revelling to pull the trigger and moralists screaming for their public execution! The internal combustion engine is thus dead, only when it was about to get really good. At not wasting an atom of fuel. We could cut emissions and fuel consumption by 50% over night with what Saab and Köenigsegg have already done and made mass manufacturable. But the company management is now all of a sudden scared of "reputation damage" and of being actually held criminally liable for their negligence! That's why every manufacturer is going electric. Because they're not up to the job of a real engineer! And the only one which was, is already dead. :D The Saab H-engine is still developed and manufactured in China and Algeria but that's a story for another day. Bro-tip to anyone interested or struggling with old Saabs; the Algerians have the entire back catalogue on offer for about 1/10 of what the new-old stock that's in the Saab Parts AB catalogue is going for. I don't think oil pans or steel head gaskets are worth 300e on a rust bucket that's barely worth that much when fully functional.

Not a new idea. Hybrid electric turbos have been around for ages, and variants like electric augmented turbos with waste heat recovery far more advanced than the application proposed here have been used in F1 for 8 years now. F1 is now actually stopping use of this technology. Mercedes and Audi have dabbled, several dedicated turbo manufacturers have solutions. Porsche didn't invent it, they would only patent their specific application.

I subscribed bcz that my love for cars and jets met a mechanical engineer here.!

Where you get that dual out compressor housing

100 year old design

If Porsche to enter F1 it is Mercedes' worst nightmare. 🙁

The BMW twinpower turbo seems to be pretty reliable and fairly lag free and its been around a while, using a motor to spin up a turbo seems a route to unreliability given the heat around any turbo ?

The output heat from compression won’t change. It’s Charles’ Law. Removing a hot side or moving it will only reduce engine compartment heat and to a ‘degree’, ambient intake air. But compression is compression and while electric allows for probably almost instant spool, the heat generated will still need to be cooled. No way around that. In the end it doesn’t matter what drives the comp wheels. Exhaust, belt, motor… just different ways to get the same thing. Hot compressed air

Oh god don’t tell Porsche it’s good they will be making the same Turbo for the next 80 years saying “It’s timeless and doesn’t need to be changed”

Electric motor driven turbos are not a new idea or technology, or genius

4:05 oh! I read a reference to Audi introducing electric turbos in a car magazine years ago. The magazine was talking about near future innovations but didn't go into a lot of detail. I understood they were talking about eliminating lag by borrowing battery charge to run the compressor then paying it back a second later from an exhaust powered generator. Effectively I assumed the industry was doing exactly what this video says Porsche have developed. The benefits of splitting the hot and cold side didn't even occur to me, I just thought that's what everyone would do with wholly electric compressors. How does an electronically assisted one work then? Must have some kind of mini clutch for the motor, and I suppose that could engage at relatively low RPM because the electric bit is to get it going early.

Haven’t driven a new turbo car. But with the 8 & 10 spd transmissions. You would think the revs would increase quickly, almost no lag.

Pretty much this is called a supercharger but powered by electric motor

I actually like a car with turbo lag. It gives it character, you have to think more, plan and drive it. Turbo lag is foreplay Having power there, easily any time is just boring and takes away the driver involvement and character of the car

The Porsche system sounds similar to the Kers Exhaust Power system like the once in F1 cars. They Use the heat energy of the Exhaust for the Electric engine and Porsche would just use the Preasure in the Exhaust to Power those turbines. If they use a 48 volt system that could also be used for not only the Turbo but maybe also for spinning the Engine or driveshaft while shifting and maybe could be used for an EV mode that has Very Limited range. but it sounds very Interesting. I hope the Guys down in Stuttgart make it Amazing.

Years ago I hooked up a leaf blower as a turbo as a joke. Blew everyone's mind at the insane amount of boost! With 3 speeds on my turbo fan.

The problem with synthetic fuel is that it takes a massive amount of electricity to produce. Then you've got to store and transport it to whichever country. Porsche are doing this just to satiate their own customer's. This will definitely not be viable as a mass market fuel. Not to mention Governments legislating against ICE powered vehicles. The death knell has sounded for ICE whether we like it or not. The future is BEV. Not Hybrid, Not Hydrogen..

didn't mercedes hpp come up with the split hot cold turbo for the w05 back in '14?

I hope this electric turbo will be included in the Taycan turbo model to make some sense of it's name...

love this channel so far, its like donut media but without the cringe