Dude, you seriously rock. I feel like I've learned more about engineering in one evening on your channel than in a year of actual engineering school
@EngineeringExplained
9 жыл бұрын
+Nick DesRosiers Thanks!
@user-kv9po5zi5z
7 жыл бұрын
yeah... me too...
@EJL2004
7 жыл бұрын
Couldn't agree more! I want to switch tasks to investigating an equal length header for my WRX but I keep seeing more Engineering Explained presentations that I haven't seen yet that I'm really interested in, lol!
@styx7989
6 жыл бұрын
i always say school is pure waste of time
@BIGGELATO
6 жыл бұрын
Engineering school gives u a diploma. A diploma is a school reciept.. all this is, is proof of knowledge to be able to get a career. Other people may rather learn online and start their own business. Which is the right way to go. Be a worker or have workers! Owners/companies need u guys as workers.. unless u can learn this faster and be ur own boss
@callumkingunderwood
9 жыл бұрын
A twin parallel setup is far more responsive than a single large turbo supplying both banks of the V, even if the final power outputs are going to be the same as the single. That and from a design perspective it can be easier to plumb them either side of a v8 than a single large turbo and spreads the same amount of heat energy across a larger area. So sure its more complex than a single turbo, but I'd still vote on its superiority for a V style engine.
@bertochan4344
3 жыл бұрын
100% agree
@bingoberra18
9 жыл бұрын
A twin parallell setup has a wider range than single. Because even if you split the displacement of a 3l engine in two for a 600hp output. The rotational inertia of one 300hp turbo is easier to spin for 1,5l of displacement. Than that of spinning a 600hp turbo with a 3l displacement. Also you get the benefit of dividing the pulses from each other. For example a V6, I6 or definately a V8 gets a benifit of only having half of the cylinders "disturbing" or helping each others pulses before the turbo. For a V8 configuration, two twinscroll turbochargers are ideal since you can divide the exhaust pulses so that you get two cylinders acting upon each port of the turbos. You also get the earlier explained pros of lower rotational inertia compared to a single.
@ConfusedShelf
8 жыл бұрын
Been binge-watching this channel over the last few days and learned so much. Thanks for your great explanations. The novelty of Twincharging (and its ties to the Lancia S4) make me love it, even if it is inefficient and outdated.
@EngineeringExplained
8 жыл бұрын
+Lukas Walmsley Thanks for binging! Be sure to eat occasionally.
@fursty6942
9 жыл бұрын
2JZ + Single Turbo + Antilag = WAR
@mikehammond1227
9 жыл бұрын
f250 big block naturally aspirated accepts war
@keeganwebber
8 жыл бұрын
+Mike Hammond why, of all things, would you pick a naturally aspirated gas TRUCK engine? What about the ISB? or even the new non-IHC powerstroke? I drive a work truck with a 460 Ford in it and good christ it's a pig.
@edlingja1
7 жыл бұрын
keeganwebber Yeah, I would love to hot-rod an f-250 with a turbo ls for driving around town/cruising to pickup a yard of gravel lol maybe 3.47 bags of post-mix if it's a heavy day loooooooooooool
@keithbaker1951
7 жыл бұрын
keeganwebber lol the concept made me spit out my drink! Lol i got the mental image of this " big block" F250 ya know cuz the 250 has the extra weight for the increased payload=more weight to carry... This VS. wouldnt be a very sporting event.
@yahtadi5152
3 жыл бұрын
What tf is anti lag?
@jasonmosler
10 жыл бұрын
how about one on torque vectoring.
@icekk007
8 жыл бұрын
VGT is currently difficult to implement in gasoline engines because the the variable geometry mechanism is not robust enough to withstand the 1000 degC exhaust temperature from gasoline engine.
@knill1494
10 жыл бұрын
Could you do a video on the new 3D printed Koenigsegg turbocharger that combines the ranges, technologies and efficiencies of the twin scroll turbo and the vgt turbo, and all at the same time simplifying everything about it? I just love how cool it is and want to know more about how it works, and how the two awesome technologies smashed together and simplified will change the auto industry forever!
@EngineeringExplained
10 жыл бұрын
Good suggestion!
@eugeneheynike8464
10 жыл бұрын
Engineering Explained Looking forward to this!
@x2eXu50x
9 жыл бұрын
Engineering Explained Sweet! Cant wait!
@munmunyee
9 жыл бұрын
Yeah, IMHO the ultimate form of forced induction is twin vgts. I'm really curious as to how it stacks up against the other turbo types, even though I know it blows(pun not intended) all the other types out of the water.
@Hatthew72
10 жыл бұрын
Can you do a video explaining waste gates (internal and external), blow off valves, and bypass valves?
@Bones12x2
10 жыл бұрын
That would be a good video but it is pretty easy for the basics. He should do that plus talk about different boost control systems like manual versus electronic, 2-port vs 3-port etc.
@Unb3arablePain
10 жыл бұрын
I think he did in one of his earlier vids. Look back from some that a year or two old.
@wackowacko8931
5 жыл бұрын
Regarding Twin Charging: Sometimes twin charging is the only possible solution in certain applications - specifically 2 stroke diesels. Most of the over the road 2 stroke diesels have to use a supercharger just to be able to run at all. An example of this is a 6-71 inline six diesel (there are a lot of them out there still) that comes stock with a supercharger - and it won't even start without it, because the air path to the cylinder is restrictive and a few other reasons. The only way to significantly improve performance on these is to run a turbocharger that feeds the supercharger. It is not the best solution, but it is the only one that will work.
@alaindavid3756
6 жыл бұрын
Twincharge was used on Fiat-Lancia models in the 80's but discontinued a few years later. Mercedes used superchargers for a while and I think some top end models used a twincharge setup. Ferrari; Mazda and Opel used a swiss BBC comprex pulsating wave charger and I think some attempts were made using it in a twincharge comprex-turbo setup.
@ghettoflyer
10 жыл бұрын
Can you go over the variations of superchargers next? Centrifical, Whipple, single & twin superchargers (parallel and sequential twin superchargers), variable speed and 2 speed superchargers. Different types of impellers 2 & 3 lobes, twin screw, and how the angles and shapes of the vanes on the centrifical superchargers and twin screw have dramatically improved efficiency over the years. How different styles of impellers get better efficiencies as production quality increases, such as cast verses CNC. Belt vs Crank driven superchargers. How you can make more power with the same size supercharger simply by changing a pulley. Do a video on Flywheel superchargers. How superchargers make engine HP & TQ grow geometrically thru out the RPM range.
@isaacgallegos5405
4 жыл бұрын
I love your videos man
@markjmaxwell9819
5 жыл бұрын
The original GTR skylines and the Supra had twin sequencial turbo chargers. But the twin scroll turbo if designed properly like the one on the B58 engine in the new Supra is the winner for an inline engine application. But on a V engine configuration one twin scroll per bank is hard to beat. Great job as usual. 😃😃😃
@bohnerbob
10 жыл бұрын
Liked the video.. a little quick but very concise. You should think about doing another video on super chargers, maybe compared with turbos? Just an idea. Ps I like how you put formulas into your videos to more or less prove whats happening. It turns theory to science which is lacking for most videos on youtube. Keep them coming!
@EngineeringExplained
10 жыл бұрын
Thanks, glad you enjoy the videos!
@danthefro999
10 жыл бұрын
As far as twin charging.. just one reason to think it could go well: Lancia Delta S4. One of the best rally car platforms of all time. Came with a 1.8L twin charged l4. Was also mid-engine AWD. That car was a rocket, and it could handle boost like a champ. Apparently some engineers tried running an insane 5 bar of boost through it and it didn't blow up. Oh, almost forgot to mention that stock it did 0-60mph on gravel in 2.5s. Obviously a rally car team like Lancia isn't worried about cost and complexity too much compared to your average Joe :D
@ThePdxster
9 жыл бұрын
Don't forget that BMW used twin-turbos on their in-line 3.0 liter 6 cylinder "N54" engines with great success. Won lots of engine awards for that one. So twin-turbos are not just for V engines. They have since switched over to a single twin-scroll design.
@ThePdxster
9 жыл бұрын
***** You apparently missed the point. BMW used a parallel twin turbo on an in-line 6 cylinder, thus they were not only used for V (or boxer) designed engines as the video suggests. And yes I did mention they have since changed to a twin-scroll design. www.autozine.org/technical_school/engine/Forced_Induction_3.html
@Tailz90
9 жыл бұрын
i think the power that a supercharger has ,in a twincharged system, outweighs the loss of efficiency
@mikehammond1227
9 жыл бұрын
i have to agree, i plan on doing a build with a twincharged system. the nice part about twin charging is i can slap some insane turbos on the engine and just let the supercharger hold me up till them big beast spin up
@HuntingTarg
6 жыл бұрын
I will point out that in terms of extra horsepower delivered over horsepower consumed, twincharging systems are the least efficient; they can =potentially= deliver the most total performance increase. But EE dude was saying that they are "not the best choice in a production model car". In track-only designs one can pick-and-choose parts that will maximize a particular system's advantages - not so in street-legal models.
@Tahtonedoodoverthar
7 жыл бұрын
I've seen cars with a twin charge system that are quite ridiculous, and I find that the idea of combining the supercharger and the turbocharger for their individual benefits is rather appealing. Constant boost to rip out of corners and such, then the turbo to kick in at mid-high range to rocket down the line. The only downside I've heard of is that you're gonna break a lot of things quite frequently. Do you have any other detriments that you could expound upon?
@HuntingTarg
6 жыл бұрын
+Tahtonedoodoverthar High maintenance and high initial cost are the only real ones, but it is definitely a maintenance-intensive system. To keep the engine in good shape it is important to understand the MTBF numbers on things like hose and interface seals, and replace them BEFORE they fail; otherwise the life of the engine can be shortened considerably.
@KarriKoivusalo
10 жыл бұрын
There is a setup where including a mechanical supercharger is actually one of the simpler options; V engine with huge parallel turbos. Sense in such an arrangement is still debatable as by then we're talking HUGE power, e.g. for a 5-liter V8 the number is way over 1000hp, but anyway.
@1mouse3
7 жыл бұрын
say on a diesel that benefits on low to mid rpm boost, would parallel be better than one large turbo since should lower boost range. I believe a 2 stage at a disadvantage on a V engine since turbos would at a distance from the main heat of the exhaust but viable on a L engine. I am doing parallel on a 6.9 idi with two hx35w's
@alexshootsphotos
10 жыл бұрын
May I suggest a video? ITB/IRTB (individually run throttle bodies) with a turbo setup? I understand the concept of each separately but with an average turbo setup the air is forced in one throttle body, whereas with ITB's the turbo will be feeding 4+ separate throttle bodies. How would it be done? A large box around the ITB's?
@baberhamlinkon9738
Жыл бұрын
I feel like (this is only backed up by general knowledge,) with the right set up twin charging can be great, it’s often just complex as you said, but I guess that is with any of these options. But poepel twin charge becasue it’s a cool thing not as efficiently.
@VORSTIENER
9 жыл бұрын
What Kind of Setup does a BMW N55 335i have? Twin Parallel or Twin sequential? And the later 335i's had the N54, which changed to a twin scroll. Which one is better, N55 or N54?
@marksopuck
8 жыл бұрын
I wish you would go more in depth with all the systems. for example, twin sequential vs twin variable. you make them sound very similar across the board but TV is far more in every category.
@keyespi
10 жыл бұрын
Hi! Is it possible to install a VGT on a 4cyl Petrol? Most of the VGTs are for diesel. And please correct me if I'm wrong, the next best choice is Twin Scroll. Am I right? Lastly, what type of turbo is being used in F1 this year? THANKS A LOT!
@propa22
8 жыл бұрын
hi, im using ej20 GRB 2008 jdm sti.. currently running stock twin scroll turbo, i plan to upgrade my stroker kit to ej23.. is it good to combine single scroll turbo to my ej20 compare to twin scroll turbo? the biggest turbo for stock location for twin scroll turbo are only for 550 hp while most single scroll turbo do have more hp?
@konstantingeorgiev7668
10 жыл бұрын
Let's say you have a forced induction engine. Will the number of valves per cylinder affect performance under high RPM? Does the higher pressure of the turbo/supercharger under high RPM compensate to some extent for the fewer valves per cylinder? For example a 4 cyl. engine with 8 valves or same engine with 16 valves.
@rubikfan1
8 жыл бұрын
what about hybrid turbos? where the battery moves the turbo, and the battery is recharged by things like braking.
@Luigiweegy
3 жыл бұрын
I feel like a key row that was omitted is "Max Boost." For example, based on this table, there is absolutely no advantage to Twin Parallel over a Single. Presumably, the reason one may opt for a Twin Parallel is that it can achieve a greater maximum boost than a single turbo.
@sammy50001
6 жыл бұрын
Doesn't twincharger remove turbo lag by having the SC fill in the gap while he TC spools up?
@85bbenjaminfan
8 жыл бұрын
So what about using two variable twin scroll turbochargers on a V type motor, like say a V6? Would you be able to achieve an insane amount of horsepower by combining that with a highly efficient air to liquid intercooler?
@MagicDartProductions
8 жыл бұрын
Okay so I'll give this a whirl seeing as this video is older and this comment is fairly recent. Essentially what you do when you parallel turbo a V6 is you're treating the engines as two 3 cylinder engines smashed together (which it actually is essentially). So instead of using one turbo powered by the two "engines" you're using one turbo per "engine" which results in more usable boost because you're making better use of the exhaust gasses to run the turbos but in the long run isn't a huge difference just much more efficient. Most car manufacturers that do turbo a V6 or V8 model will only put one turbo on it because of the added cost/complexity/weight of the twin parallel doesn't really outweigh the performance gained regardless of whether it is a twin scroll/single scroll/VGT or what have you.
@edlingja1
7 жыл бұрын
Jacob Harwood Yeah, OEM's aren't interested in the best of the best. Like ford's 4-cyl engines can make 200-300 hp in a 2L but they would never ever put such a delicate engine in the hands of consumer motorists. You can always buy a pimped version of your engine and tell your insurance company it broke and you bought a brand new motor that is an "exact match".
@HuntingTarg
6 жыл бұрын
+MagicDartProductions I just read (old) news that Porsche is doing exactly that with the Panamera - so is Genesis with the 2018 G80. Both engines are V6 Scrolling Twin Turbo designs.
@Lostsage01
4 жыл бұрын
Would be interesting to see a twin parallel setup on a V8 using a pair of twin scroll turbos
@Al0011235813
2 жыл бұрын
I was going to ask the same question.
@antongranholm9508
2 жыл бұрын
Bmws n63/s63 uses that
@mpgsters3436
8 жыл бұрын
how about the nissan march super turbo? it had the twin charge setup
@halfzack1317
2 жыл бұрын
You should do a video on twin compound turbos. Where one feeds the air to the other.
@outtaroad5912
5 жыл бұрын
What would be the best turbo system for a boxer engine subura?? Twin, VGT, or twin Scroll, Compound?? Its for Auto cross?
@ghettoflyer
10 жыл бұрын
Do you think you could do a video on sizing a turbo to an engine ( Understand this becomes complex because sizing a turbo is derivative of what rpms you plan on operating the engine at but I think you can do it)
@EricofPhilly
10 жыл бұрын
I was watching a video about the McLaren P1 and they mentioned that it has an electric motor system. Since the car relies on a 3.8 V6 and turbos, they designed this system as a "torque filler" to make up for the lag associated with the turbos. Does it really make sense to incorporate an electric motor and batteries as opposed to using VGT's instead, or is McLaren simply trying to claim its stake in the hybrid super car market like so many others?
@mpeugeot
8 жыл бұрын
So tell me, why is a twin parallel setup better than a twin scroll single (in my case on a 3.5 liter flat plane V8), did I miss something?
@PhillipTieuChainz
5 жыл бұрын
Do you have a video that explains how to determine what exhaust housing a/r is best suited for a particular turbo and motor? I'm. Having a difficult time selecting the correct exhaust housing on a gtx3576r for my rb26dett. I also do not understand how to read the turbine map. There's tons of videos on the compressor map but not the turbine map. A response is greatly appreciated!!!
@KGarage85
10 жыл бұрын
There's a guy in the states with a compound charged lotus that had the highest power per weight ratio of any known car at the time. More than a veyron. I think it was featured on Driven. Some of the best group b rally cars had compound charging as well. You don't see it very often and this could be because it's complex, expensive and probably hard to tune but imo the best performance you can get if money was no issue. When they get it right, transmissions and diffs cry for mercy ;-)
@jeroenvd89
8 жыл бұрын
I love my wide boost range twincharged VW Scirocco to bits!
@edlingja1
7 жыл бұрын
Jeroen van Diesen VGT, right? I am pretty sure that's the car they built around that var. geometry turbo. Lol
@Knexfoof
8 жыл бұрын
Do twin scroll turbos still have an advantage over single scroll in a log Exhaust system?
@dominicpatti2648
10 жыл бұрын
Hey I was wondering if it is possible to have a V8 with a supercharger and parallel VGT? And what would be the down side to doing this?
@Messier87_M87
7 жыл бұрын
IMO the VGT would be more along the lines of a twin scroll turbo when talking about the boost/rpm range. More or less a medium range, also the application plays a big factor. I also could be completely wrong.
@edlingja1
7 жыл бұрын
SigBlackwater226 You are pretty much right. There is no specific VGT for all manufacturers, so for example the VW var. geometry system is perfect for 2-3.5L but 4L is pushing it. Albeit a turbo rebuild can harvest much more if you have $10,000 for that.
@ombladon00
10 жыл бұрын
Great vid as always! Can you do a video explaining the 4 wheel steering concept?
@SaburZero
10 жыл бұрын
Great video bro. Always ready for more education from you.
@colinbell8250
4 ай бұрын
I know BMW B48 has twin s roll would that mean it has the variable flap ?
@OmarAhmed2016
10 жыл бұрын
These vids are fantastic
@EngineeringExplained
10 жыл бұрын
Thanks!
@TheBlu3sman
10 жыл бұрын
My favourite car is twincharged (Delta S4). Anyway, can twin scroll and vgt be combined? And I hear a lot about turbocharged cars having lower top rpm, why is that?
@rimmersbryggeri
9 жыл бұрын
What if you have a v an feed the twin paralell into a communal bigger turbo to get wider range? I guess really expensive and complex but could be fun as a project.
@Borismetheny
8 жыл бұрын
How do you change boost rpm range in a single turbo? Can it compete with the vgt?
@adrlance4592
6 жыл бұрын
Its not possible to get VGT for a gasoline car? if not, is twincharging the best for power for gasoline cars?
@cooperfontenot1100
8 жыл бұрын
What about twin parallel variable twin scroll turbos on a v8? like a variable twin scroll turbo on each side. (may sound silly but im legitimately interested in the answer.)
@hakijolo
9 жыл бұрын
Hello! Could you tell me which type of turbo is best for VW golf MK3 VR6 1997..?
@damiancastillo2338
4 жыл бұрын
Guys I wanna put a twin turbo in my GMC 2500HD 2017 which would give me the best performance and why ?
@lylehigg
4 жыл бұрын
What do you think about ford running twin parallel twin-scroll turbos on a v6? (2.7 ecoboost)
@evilmidget6265
4 жыл бұрын
hey so in australia u can get something called l67s which are supercharged 3.8l v6s and there really cheap or atleast i got mine for a good price would adding a turbo on it then be justifiable?
@advancedmagfedchannel6577
10 жыл бұрын
Why does VW use the Twin Charge option in its TSI motor when it is the "worst choice" ?
@jdc4aub
10 жыл бұрын
I could be wrong, but I believe it is was the worst option because it was expensive and complex not because it is the worst system. I imagine it creates great boost across a huge rev range, but the complexity and cost of the system keep it from being the best choice overall. VW uses it to create a better engine and have refined the process to where it isn't as expensive and complex. For someone to decide to "twincharge" their engine from their garage though, they have better options for the money.
@EngineeringExplained
10 жыл бұрын
I'll agree with what Justin said. It's not that it's "bad" it's just that I believe there are smarter options out there. There's a reason they're not very prevalent.
@bffvsbvvx3975
7 жыл бұрын
what about Twin Turbo Sequential on 2005 WRX STI Blobeye
@markgearon5798
10 жыл бұрын
As some of the guys below have alluded to, twin scroll systems are super common now. As soon as the VW group put them into mass production in their most popular models they instantly became one of the most common artifically aspirated systems in the world. Sure, more varieties of factory cars have turbos, but they are rarely in the more popular models - unless we're talking about diesels in Europe. So why did they do it do you think? Is it cheaper or simpler to mass produce than a wide band, high performance turbo only option? At any rate, thanks very much for your videos, they are great fun. Now I'll go back to my boring, small, naturally aspirated Japanese 1.8L v4. :'(
@zulfadzlyrosli
9 жыл бұрын
Is it possible to use Twin Variable Turbos (2 x VGT) on a V6 engine? It shouldn't be a problem isn't it?
@55HotPotato
Жыл бұрын
Where does Variable Twin Scroll land then?
@danielbrealey2924
8 жыл бұрын
What's the deal with compound turbo setups? I understand how they work, but how do you plumb one? The inlet side I believe you draw air into the large turbo first and then push that already compressed inlet charge into the smaller turbo where it's further compressed. But how do you plumb the exhaust side?!? Does the exhaust flow the same path or opposite of the inlet? So out the head, into the large turbo first and then into the smaller one? That would require a really large A/R ratio (compared to what it would require in single configin) in the 2nd smaller turbo's exhaust housing? Or do you flow exhaust through the small turbo and then the large turbo and still use a large A/R ratio on smaller turbo 'cause it's going to require lots of pressure to further compress that inlet charge- what's the deal?
@deserteagle19961
8 жыл бұрын
so would it be worth having twin VGT on a 4cyl engine or could one produce the same boost as two? also just wanna say that i have learned a lot from you over the last few day. love you mate.
@definetlynotsmurf7491
5 жыл бұрын
my turbo rpm range is 2500rpm to bit over 5000 but engine max rpm is bit over 5000 mb 270cdi not stock turbo 5 sylinders
@torogami2
10 жыл бұрын
Twin Parallel+ Twin Scroll+ VGT= Rule the world
@torogami2
10 жыл бұрын
thanks
@MrTheMrhappy
10 жыл бұрын
***** Dual borg warners on a v engine (gtr for example) can be done at a cost very similar to simply upgrading to bigger single turbos
@turbochevelle5641
8 жыл бұрын
+MrTheMrhappy Yeah if you wanted a set of oversized and heavy units that don't compare to newer technology turbos that come in smaller packages. Borg Warner Turbos are cheap until you add the billett wheel, anti surge housing, ball bearing options and so on. You can get much more efficient units in smaller package that are the same size as the BW's.
@icekk007
8 жыл бұрын
EE: Would you compare turbo lag of the options you covered? I believe a twin charge system has virtually no turbo lag because the supercharger works immediately at low rpm. This is why despite high cost, weight and complexity, some auto makers use twin charge system. Would like to hear your comments on turbo lag for other turbo options. Thanks.
@tylerp7847
7 жыл бұрын
Isnt it possible to achieve a fairly efficient TwinCharged system? I mean i realize that a Turbo and Super charger mounted separate are not the best option in the world, but in some Diesel applications such as Supercharging directly into a Turbocharger can increase efficiency. I helped add a Tubrocharger to a stock powerstroke engine once and with some programming, the customers efficiency increased. Although to be fair, the average RPM decreased slightly. It still drove very smooth and built power laterally, but less throttle was needed to get up to speed.
@brianrobinson9979
8 жыл бұрын
have you seen the world's fastest Lotus? Twin charged is badass!
@patriksabo1141
10 жыл бұрын
Aren't these new european VW or Škoda TSI engines twin charged? As far as I know they are. And in fact I see them everywhere around here (Slovakia). I found it very common type of engine right now.
@BrendonNasty
10 жыл бұрын
How come when you were talking about the twin sequentials the vgt was in charge?
@sigor2011
8 жыл бұрын
you basically stated that Twin Charge is silly due to several factors. So why did Volvo went with that option on their brand new SC90?
@icekk007
8 жыл бұрын
+sigor2011 See my comment above. Twin Charge virtually eliminate turbo lag at the expense of complexity, weight and cost.
@the-real-zpero
8 жыл бұрын
so if you're building a race car and you want a lot of boost in your high revs, but you also want low end boost and you don't want any "surprises", what's better (only considering weight, range and actually boost provided)? I feel like twin charging would be at home in a situation like that, after all supercharger do yield more power at low rps than even an easily driven turbo, right?
@domitnate1997
8 жыл бұрын
Variable geometry or compound turbo. But if its a race car you'll be in higher rpms anyway
@LegacyIvyTerascale
6 жыл бұрын
so variable has differit size turbos which , work togheter all the time in some applications sequential is when one works at high rpm while the other all the time , they can be twins or differit sized ?
@christianhodges685
6 жыл бұрын
Twin parallel uses two equal size turbos, increases responsiveness but doesn't really increase boost range. Twin sequential uses a smaller turbo to spool up a larger turbo for faster spool up and improved boost range. Think of it as a single turbo being assisted by another, smaller one. Variable twin turbos idk much about, but it seems likely that it uses a small turbo at low rpm and transitions to the larger turbo at higher RPM
@king.dannyman
10 жыл бұрын
Nice... Always good to see a great comparision!
@th3thin9
4 жыл бұрын
I believe that in diesel applications, twincharging is waaaay simpler than the counterparts. Its more badass, too.
@orannulty4193
10 жыл бұрын
Great video man!! Could you make a video on why turbocharged engines have low compression
@oseh438
3 жыл бұрын
What about series and compound turbos? Ik they’re rarely used but they are interesting nether the less
@fjmcbob
9 жыл бұрын
Could someone please explain why are VGTs only for diesel engines?
@EngineeringExplained
9 жыл бұрын
fjmcbob The vanes typically can't withstand the high exhaust temperatures of gasoline engines.
@Backyardsmash
9 жыл бұрын
Engineering Explained If a car is running ethanol fuel a VGT still wouldn't work would it?
@RDC_Autosports
6 жыл бұрын
fjmcbob they do they call em something else..... they work off vacuum tho
@akshaymhadaye3811
5 жыл бұрын
IS IT POSIBLE TO TURBO CHARGE SKODA FABIA 3 CYLINDER 1.2 L PETROL ENGINE
@zanzark1
10 жыл бұрын
Great video! I have a 1.8T 20V audi, and it has a million different hoses all around, that I don't see in non-euro cars. Could you do a video their function?
@EngineeringExplained
10 жыл бұрын
Thanks for the suggestion, not too familiar with that engine. Is that on a TT?
@armando062212
10 жыл бұрын
1.8T engines are either Longitudinal and Transverse. I have longitudinal. S.A.I is needed because our turbo(k03) is too small amd our motor is too small and it needs that extra air at start up, S.A.I turns off after engine is warmed up a little. Crankcase hose is to get rid of extra crankcase pressure, from there it connect with valve cover and from there to pancake valve which is part of the T.I.P(gets sucked into compressor side obviously) Check valves are all over the place to make sure gases go only one way. You have a few that go under your intake mani one is the N247or something like that, another goes to your N49??(Electronic boost control which keeps your car from harms way) A BT Set-up helps get rid of a few hoses and S.A.I. but unfortunately most of them actually(most under the intake manifold on my B6 A4) serve a purpose :/ 21 psi has made me replace just about every hose in there lol
@jakefox221
9 жыл бұрын
im currently building an rx8 (rotary), so i was looking at sequential due to mazda using this on the 7. but after viewing the video would a VGT be a better solution (looking for 600+)
@avalsirithanawat1772
9 жыл бұрын
Engineering Explained Does a twin parallel VGT exist? Will it be good in an engine like a V8?
@jinnypark240
8 жыл бұрын
Would it also be a good set up if you installed a VGT into a V-engine? Understanding that Twin Turbos would be good since there would be 1 turbo for each exhaust manifold, if you wanted to keep it relatively simple then would VGT be a good choice as well?
@chevytech7306
3 жыл бұрын
Would twin charging be more effective in the racing world compared to the others
@treebeblazin
10 жыл бұрын
What about twin variable geometry turbos for a v type engine?
@sity909
8 жыл бұрын
I find centrifugal fairly simple to install. only downfall is replacing the fuel pump
@JayzBeerz
5 жыл бұрын
my 2019 sonata limited 2.0T has a twin scroll. hope it lasts for a long time.
@PauliusNORCO
10 жыл бұрын
Yes, comment, please, about VAG TSI engines, if twin-charging is considered bad by You.
@EngineeringExplained
10 жыл бұрын
Is that engine still made? Is it used widely on the VW's product line?
@PauliusNORCO
10 жыл бұрын
Even Golf Mk7 (newest one) uses TSI engine. Many VAG cars uses it, by most Audi and VW ofcourse. Can't name exact models now, but You can easily find out in wiki. (=
@EngineeringExplained
10 жыл бұрын
I think you'll find they're pretty uncommon.
@EngineeringExplained
10 жыл бұрын
TSI = turbocharged stratified injection, not twincharged.
@PauliusNORCO
10 жыл бұрын
Read a bit better before answering. www.volkswagen.com.sg/en/technology/tsi-engine/the-tsi-twincharger-motors.html Not all TSI engines are twincharged though.
@ZoDDyXXX
10 жыл бұрын
I think our future engines are very small with advanced types of supercharging. They will be more efficient and still have the hi power option. The inside of a smaller engine will have lower mass and friction. They can also add more strength to the block and the heads because the total weight will still be less when the engine is so compact.. I think the emissions vill be less too which is a huge factor for the automotive industry.
@paradox5556
Жыл бұрын
yes
@TheFlacker99
10 жыл бұрын
With supporting mods (Antilag) a single turbo could behave alot differently. Just something I wanted to point out.
@denpo
9 жыл бұрын
What do you think about making a poor's man VGT out of a twin scroll turbo? Surely the shape isn't optimal but at least the volume is reduced (speed is increased).
@munmunyee
9 жыл бұрын
pls don't discriminate on twin vgts...please
@Scoobydcs
8 жыл бұрын
lol
@TheAv0lution
4 жыл бұрын
Calm down Jeff Bezos
@declanroberts9497
10 жыл бұрын
Could you have a twin scroll VGT turbo??
@BoostedDeere
9 жыл бұрын
You could buy its kind of pointless. A twin scroll is basically 2 turbos in one. I like the concept on twin scrolls on diesels
@anthnnunley
5 жыл бұрын
Thank you for the explanation! You broke it down great!
@turbovolvos40
9 жыл бұрын
I also wanted to comment on twin charging. In recent years it has been making more and more appearances in the production world, (I'm thinking specifically of volvo with their drive e engine line, one of their engines is twin charged, and they now have a near production concept with twin parallel turbos, charged by a single electric centrifugal compressor. I believe VW and BMW both have a production twin charged engine too.) We are seeing this in the production world because people want engine response, and fuel efficiency, also, in Volvo's case one line of engines will, if it hasn't already, save volvo a lot of money by only having one engine production line. I do not disagree that it is expensive to twin charge, but if companies want to have "efficient performance" then they need to get rid of bigger engines, and concentrate on making responsive power with smaller ones.
@adamheed4953
10 жыл бұрын
is it possible for you to make a video on how drysumps work?
@serialced
8 жыл бұрын
Mercedes has previously made twin charge engines though, as recently as in the A class iirc
@whowhatwuh
9 жыл бұрын
Your videos are extremely helpful and easy to follow! I do have one question though. Say you have a v8 motor and cost is not a factor, what would be the best performing turbo in this group. I understand you recomended the twin-scroll based on cost, however I was wondering what you would recomend based solely on performance. Thanks!
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