Subaru's NEW Boxer Engine - The Science EXPLAINED

30. Lip 2020.
1 152 305 Pregleda

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The Subaru WRX STI is getting a new engine in 2022 and its the engine out of an SUV? how can this 260hp FA24 from the Ascent become the 400hp busier of a boxer that will power the new JDM Rally bred beast? We break this block down to its basic parts and explain just how Subaru is gonna get more horsepower than they’ve ever given the STI out of this new platform. so stop in for an inside look at Subaru’s new FA24 Engine.

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Komentari
  • What are your thoughts on the switch to the FA24? Should they put it in the BRZ?

    Donut MediaDonut MediaPrije 3 mjeseci
    • They should scrap the brz and make a new engine.

      Dab KingDab KingPrije 27 dana
    • Stephen Moore they already have a DIT with the current WRX and I haven’t seen many people having problems with rings

      TitusGarret14TitusGarret14Prije mjesec
    • Amazing presentation! Loved you and all the graphics! I learned a lot!

      Shannon GlanvilleShannon GlanvillePrije mjesec
    • @NSX 55 not for long

      Cafe RacerCafe RacerPrije mjesec
    • as long as the head gaskets dont mess up i'll be happy

      Noah WilsonNoah WilsonPrije 2 mjeseci
  • EJ25 is the one that was plagued with gasket design issues.

    SausagesSausagesPrije 10 sati
  • Like Ford keeping flat head 8s for 35 years. This is still a maintenance issue engine. The transmission is still junk. Like Ford owners they deny the problems and give them to their kids or park them in the field next to the other Fords they couldn't fix. Definitely a branding issue like Starbucks and birkenstocks.

    Randall PriceRandall PricePrije 19 sati
  • I drive a 2015 STi with 404hp & 480ftq everyday. I have 30K miles on that time and it’s a peach. It’s as simple as a high-quality AOS equal length headers and a flex fuel kit. Those three mods alone will lower the chance of detonation significantly. E85 is the most important one of the three as it really cools down the cylinder walls every time the injector spray. That’s really why E85 is able to make so much power. Last but not least get a proper pro tune and you should be fine like me. I’m running 23.5 psi of boost and when I do my data logging by way of a Cobb acsessport I’m not seeing any knock. Knock on wood

    Skeptical SkeksisSkeptical SkeksisPrije dan
  • Whether it’s the FA’s bent connecting rods or the EJ’s piston ring-lands cracking, both fail due to premature fuel detonation. Which is directly related to cylinder temperature, poor fuel quality, lack of maintenance and in some cases people just not knowing how to drive a manual transmission; and would continually bog the engine. All of these things are the cause of knock in Subaru’s boxer engines. ( STi Ownership 101)

    Skeptical SkeksisSkeptical SkeksisPrije dan
  • I can't believe that I just wasted 13 minutes of my life listening to the repetitions of bigger, more pressure, stronger, more direct, higher speed, better, newer...

    V SohnV SohnPrije dan
  • Quick note, it’s not 400 to the wheels, it’s to the crank.

    bakerbrdzbakerbrdzPrije dan
  • Why you trying so hard to sound like someone 😂😂😭 ?

    Totototo CompanyTotototo CompanyPrije 2 dana
  • But what’s it sound like

    ReelNewwtReelNewwtPrije 3 dana
  • An often made mistake is to consider Boxer and flat engines one and the same, when they aren't actually. In a flat engine (not a boxer), a pairs of pistons share a crankpin. In a true boxer engine, every piston has its own crankpin. The result of the boxer motor’s use of individual crankpins is that the pistons on either side move opposite one another, which helps to cancel out engine vibration. The back-and-forth motion of the pistons resembles the punches of a boxer, which is where the engine gets its name.

    Subarno SinhaSubarno SinhaPrije 3 dana
  • This guy looks like Scotty Kilmer’s son

    Young Drew's ProductionYoung Drew's ProductionPrije 4 dana
  • I really hope they somehow find a way to keep UEL headers for the new STI's, because that sweet subie rumble is the best car sound to ever exist imo. There's no other sound like it. If the new ones don't have it, I'll stick to old ones.

    SkinnierSteveSkinnierStevePrije 5 dana
  • can the the new 86 have a turbo with this engine pls? 🥺

    Zeus OresZeus OresPrije 6 dana
  • They can fix the rear wheel bearings, I'm not getting another one. F this

    Brian HawkBrian HawkPrije 6 dana
  • I can't help but think that this is the twilight of the ICE. By the time this one releases, the electric motor would have surpassed it.

    jomax cluxjomax cluxPrije 6 dana
  • No more classic subie rumble?? 🥺 Ah, things we do for...MO POWAH BABEH!

    Gear 8883Gear 8883Prije 7 dana
  • Looking forward to getting one of these in Europe, oh wait they're putting speed limiters in cars in 2022 nvm

    Stephen LewisStephen LewisPrije 7 dana
  • Aslong as the engine is around the same size as the one it's all good, cuz I'll definitely just take the new engine and put inside a 06 sti instead 😂

    NikkoNikkoPrije 8 dana
  • The base models will still receive an upgrade, right?

    FrostFrostPrije 8 dana
  • Doesn't everyone want free flowing head !

    pablo ragespablo ragesPrije 8 dana
  • Toyota always knows how to make engines more reliable.

    MrMeoow91MrMeoow91Prije 9 dana
  • Cool a new design on the sti aye lol I’m still gonna do up my 02 wrx till I can afford a r33

    DecemberDecemberPrije 9 dana
  • Boxer engines are actually flawed, ask any honest mechanic. Boxer engines generally have gasket leaks at 30K miles. GDI engines have excessive carbon buildup at 10K miles. This is the worst combination of engine designs. A new way to do planned obselesence.

    Troy VTroy VPrije 9 dana
  • It's a very detailed video. Im a subaru fan with a 2013 wrx pumpkin limited edition. I like both the EJ and the FA, but another area that we need to look is the offset of the connecting rod. While the ones on the EJ are dead top center, the one in the FA sit in an angle. That puts pressure on a single area of the connecting rod. If you put both connecting rod next to each other, you can see the difference. Other than that everything else is great.

    Angel PabonAngel PabonPrije 9 dana
  • no offense man, but I had to put on the captions to more or less understand what you were saying. I could mostly understand what you were saying, but you were saying it so fast, a lot of the words ran together.... 0.75x speed was too slow, so I used kept it at normal speed and just turned on captions. I normally watch donut.media stuff at 1.25x to get through the babble more quickly, but not this time. Nothing wrong with Subaru changing the motor in their "flagship" car as it way overdue. With as many issues the EJ (EJ25) had, I'm surprised it lasted this long. At least the FA24DIT got seat time in the Ascent so some of the minor hick-ups could be worked out; however, only time will tell how the extra power affects the engine.

    K03sportK03sportPrije 9 dana
  • Explain about toyota sai 2010 engine

    Nikil Naveel ChandNikil Naveel ChandPrije 10 dana
  • Sick Wolverine snap back bro

    Bradly SullivanBradly SullivanPrije 10 dana
  • Just bought my wife an Ascent today - will she notice if I swap in my WRX FA20 in order to put her FA24 into my WRX LTD 6-speed? #savethestick

    Larry GanzLarry GanzPrije 10 dana
  • It's great that they have a new engine but I still won't buy any of their vehicles if they still are using the same crappy CVT transmission with no low range.

    blacsdadblacsdadPrije 10 dana
  • So many ads on this video it was impossible to watch. Plus you guys got to get rid of those keeps ads.

    damagi123damagi123Prije 11 dana
  • Where do I get a 500 hp crosstrek?

    Crikey CrikeysCrikey CrikeysPrije 13 dana
  • The 2022 STI looks like the GTA version of the Civic R

    DorGreen1DorGreen1Prije 13 dana
  • Same unreliable boxer lol

    Bob SagetBob SagetPrije 13 dana
  • I love wen he dose bumper to bumper

    Mashaw TuckerMashaw TuckerPrije 14 dana
  • You run too many ads, including your own up-front built-in ad. Also, you come across kind of “clownish” by changing your t-shirts & hats during the video...again too much ad man, to be taken seriously for information content.

    James CrawfordJames CrawfordPrije 14 dana
  • Put it in a forester. Give us a manual option.

    Three-legged CrowThree-legged CrowPrije 15 dana
  • Jeez, how are they gonna squeeze a whole 140hp out of that engine? Im assuming bigger intake, bigger fuel system, higher boost and premium fuel but i wonder how the internals wont nuke. It is a rather large displacement 4 cylinder. I would worry about the crankshaft handling 400hp

    Shawn WarnickShawn WarnickPrije 15 dana
  • Did you ever have a STI

    mackgenmackgenPrije 16 dana
  • 400hp comon now they can do better then that. Sigh smh 😒

    zerozeroPrije 16 dana
  • i just want a flat-6 diesel. dfi is a non-issue at cold-start on a diesel given you have glow plugs to preheat the chamber. more power for displacement (i'm a hauler not a sprinter). heavier parts last longer. etc. and oc a boxer doesn't have the balancing issues of a v or il.

    dhtsoaeds dhtnadidhtsoaeds dhtnadiPrije 16 dana
  • anyone else realize at the end of the video he gets cut off

    Omar YOmar YPrije 19 dana
  • Sorry to be nitpicky, but is it 400 hp to the wheels or at the crank? If it's to the wheels that's way more than 90 more than the current STi.

    HDRheeHDRheePrije 19 dana
  • My kind of science 😜

    Unboxing JobsUnboxing JobsPrije 20 dana
  • >The Subaru FA engine is a gasoline boxer-4 engine >it might not be a boxer engine.. it's an FA24 what

    nihilnihilPrije 21 dan
  • But will it sport a manual transmission?

    HunterXrayHunterXrayPrije 21 dan
  • If you VALUE your money NEVER BUY ANY SUBARU! We own a Subaru high end model, nothing but trouble, it was NEVER used for pulling or off road or abused! Planned engineering with major defects and MAJOR cost repairs: HEAD GASKET blowups (1 ply head gasket), GAS FILTER located in gas tank (who does that?), FROZEN front differential dipstick (Why This is Happening?), ENGINE oil consumption (Subaru decided to make the tolerance of the engine parts to lower fuel economy, yes check it out) nightmares with SOYA BASED wire harness that rodents love to chew and eat (WE have to put Mothballs and Dryer Sheets all the time to prevent another electrical failure), JERKY transmission, CHEAP bad design SEATS that will hurt you, DEFECTIVE, dangerous STEERING Column defect from the company, they EVEN put the WATER PUMP in the ENGINE (even need to replace timing chain and sprockets when replace the water pump), SPARKPLUGS removal nightmares, SQUEAKY and CLUNK noises… if you don’t believe me read blogs, read comments of other REAL LIFE owners nightmares with SUBARU! Fortunately we don’t have the CVT transmission!!! Check also CLASS- ACTION LAWSUITS, and ALL the RECALLS! If that is not enough read Subaru recalling 500,000 vehicles for defective airbags, AGAIN or car shutting down while driving, or steering column failure while driving and much more…Let me just state that there are plenty of real life owners data and other data that backs up everything. These are not subjective comments, I remain objective and discussed the drawbacks of buying a SUBARU. Second, we do own a Subaru and will kept me from buying another one. Before taking anything personally, step back and remind yourself that you can check all these information’s yourself and be wiser before buying a new vehicle one day!

    Free SpeechFree SpeechPrije 22 dana
  • Me want this. Guess I should start saving lunch money.

    Daniyar SuleimenovDaniyar SuleimenovPrije 24 dana
  • you kinda look like tom brady but with more charisma

    Tetsuya NomuraTetsuya NomuraPrije 27 dana
  • first of all, the new fa24 isnt making 400 wheel. its making 400 CRANK. an EJ257 STI with stock turbo, bigger injectors, fuel pump, stock turbo, can easily make 400 at the crank. which equates to something like 300-340 wheel.

    Kellen MorseKellen MorsePrije 27 dana
  • The port injector is used to clean oil and carbon off the valve on startup. It's to avoid dropping a valve from carbon build up. It also lets you avoid incredibly expensive periodic maintenance for walnut blasting or fuel treatments. We get to have the advantage of adding cheap port injectors for performance applications instead of expensive direct injectors, but it's originally for reliability.

    Anthony KriegerAnthony KriegerPrije 28 dana
  • If you are considering purchasing a new or used Subaru....google...”oil consumption problem Subaru “...From 2012 and up various models have this problem. There was a class action lawsuit concerning this. Some owners reported the problem within a month of purchase....buyer beware.

    Myron WessingerMyron WessingerPrije 28 dana
  • Now u got me excited for the FA24 gonna miss the EJ207 and EJ257 tho

    DaBombDotCom77DaBombDotCom77Prije mjesec
  • I hope they put an NA one in the new GR86/BRZ. Even if they downtune it a little a la old RB/JZ stuff.

    Robert RamosRobert RamosPrije mjesec
  • Thanks for making me smarter. This is my favorite show on the doughnut

    P-Force !P-Force !Prije mjesec
  • unsubscribed.........

    ytmm9055ytmm9055Prije mjesec
  • Time to FA swap

    Daniel PizanoDaniel PizanoPrije mjesec
  • Lol the Suzuki behind you turned into a Yamaha, super spooky

    Charles SmithCharles SmithPrije mjesec
  • How about the engine leaking oil problem ?

    Steven LamSteven LamPrije mjesec
  • I don't need a product to treat a mythological condition because MEN DON'T GO BALD! It just slips a bit. You can find it growing perfectly well from your ears, nostrils, and the back of your neck.

    Vitabrick SnailslimeVitabrick SnailslimePrije mjesec
  • Dope hat. I dig it. Grew up when that cartoon was big.

    Christopher BroadhackerChristopher BroadhackerPrije mjesec
  • Those flames at 4:00 were sick!

    fkylwfkylwPrije mjesec
  • except the fa very likely doesnt make 400 TO THE WHEELS. it will make 400 at the crank

    Kellen MorseKellen MorsePrije mjesec
  • I’m all for freer flowing head

    Psychlops 924Psychlops 924Prije mjesec
  • Here I am with my stock 2009 Impreza lmfao, oh well, I'll be saving up for the new one next year.

    MilanMilanPrije mjesec
  • I hope they are sold as crate engines, I would love to swap an old forester.

    J V19J V19Prije mjesec
    • I’d love to buy an FR-S or BRZ used and put this engine in there.

      GT Mike91GT Mike91Prije 15 dana
    • I was thinking the same thing

      Ian IrizarryIan IrizarryPrije mjesec
  • So nice to see ansel elgort on screen again

    hooduhmuhwuthooduhmuhwutPrije mjesec
  • The direct only option engines with turbos, save some money to clean the valves at 30,000 miles- or way less powah baby. Nope dual fuel systems please.

    tlipizytlipizyPrije mjesec
  • I just hopped on to this series this episode, and this style is so good for new car people or people that don’t know some stuff. If someone didn’t understand the engine codes for some cars, they’d have to look everything up themselves, but in this series, it’s explained to the basics and then brings the main topic, and I love it!

    3 iii3 iiiPrije mjesec
  • Great video! I LOVED my 2005 STi especially the sound of it with the Cobb cat-back... You said the new engine won't have that same "Subaru rumble"... Really? Thanks!

    Eric HorchuckEric HorchuckPrije mjesec
  • Thumbs down for too many damn ads

    AndrewAndrewPrije mjesec
  • Welp, at least it's still a boxer.

    the Quantothe QuantoPrije mjesec
  • I'm glad subaru is finally making an engine that isn't shit. I grew up with a Subaru GL, and EJ22 Legacy, , and seeing the EJ25 shit itself constantly with stupid and frankly unforgivable problems has been painful. Truly crap. I hope the interiors are better too, the 2008 legacy we had creaked all over inside if you touched anything, and the 1995 Legacy was solid like my Infiniti.

    bobwinslowbobwinslowPrije mjesec
  • video starts at 2:20 youre welcome!

    07BLUESTI07BLUESTIPrije mjesec
  • So what If it's same engine. Foresters has shared Imprezas engines for years.

    m3ntl3g3nm3ntl3g3nPrije mjesec
  • The price of an fa just went up 15% 😅

    John WilesJohn WilesPrije mjesec
  • If they get rid of that knock sensor bullshit I'll get another one...that knock crap is stupid.

    Tech BatTech BatPrije mjesec
  • FA20 = direct injection engine garbage.,,. try flex fueling this motor without paying a fortune on a new pump... food luck on those intake valves not coking up... FA-24 not going to be much different

    girald Sgirald SPrije mjesec
  • I watched this whole video with the sound off and I still understood everything. This guy is amazing!

    Cafe RacerCafe RacerPrije mjesec
  • Ok honda k30 we're waiting

    Joseph FrankelJoseph FrankelPrije mjesec
  • Subaru is the Harley Davidson of cars. Slow with a loud and distinctive noise

    turbotj99turbotj99Prije mjesec
  • Fellow engineers, avert your eyes. There are more false statements in here than a Trump speech.

    turbotj99turbotj99Prije mjesec
  • Bouncing air??? That wasn’t covered in my fluid mechanics coursework for some reason... it’s fake?

    turbotj99turbotj99Prije mjesec
  • Spraying fuel on the cylinder wall removes the protective oil coating

    turbotj99turbotj99Prije mjesec
  • Boxer engines are marketing gimmicks

    turbotj99turbotj99Prije mjesec
  • Forgot to mention the intake valve carbon build up from that stupid DI.😒

    Trevor GlasscoTrevor GlasscoPrije mjesec
  • 2:19 Literal car porn.

    Fuscão PretoFuscão PretoPrije mjesec
  • I thought it had 310 at the crank, now i can say that my sti has 300 at the wheel

    Diego Concha Fernandez SotoDiego Concha Fernandez SotoPrije mjesec
  • Well presented video, good job!

    Marko VukovicMarko VukovicPrije mjesec
  • Direct injection needs be cleaned for carbon buildup often

    TemprestTemprestPrije mjesec
  • this thing will no way have 400at the wheels i will be really surprised if it has that at the fly wheel

    phil mcrevisphil mcrevisPrije mjesec
    • @Eskie Man that means upwards of 500 at the engine the new a45 amg has 420hp at the engine

      phil mcrevisphil mcrevisPrije mjesec
    • Don't bet your life on your comment....

      Eskie ManEskie ManPrije mjesec
  • Hats off to your RC51 sir! 👍🏽

    ClayClayPrije mjesec
  • So made the engine they new they should of. And it still has a horrible cvt transmission. Doesn’t compute. Put a proper transmission in it.

    Andrew SquiresAndrew SquiresPrije mjesec
    • Eskie Man only your opinion. Cvt suck and not every manufacturer uses them. And there reliability is not good. Plenty of better manufacturers than Subaru to choose from. You’re probably paid to say all this crap about Subaru’s anyway

      Andrew SquiresAndrew SquiresPrije mjesec
    • You''ll have to grow up, open your eyes, and look AROUND you in the automotive world. ALL auto manufacturers have been steadily moving towards CVT transmissions, whether we want them or not - if you don't already know this, you haven't been paying attention. Oh, and as far as the Subaru's "horrible cvt transmission"? It's about the best in the industry at this time.

      Eskie ManEskie ManPrije mjesec
  • New engine? Man I'm sure people will be happy if their engines stop falling apart.

    DonutsDonutsPrije mjesec
  • but... the rumble :(

    xbxspartanxbxspartanPrije mjesec
  • They are called pancake motors! VW engine need I say more

    sgonnasonsgonnasonPrije mjesec
    • Hardly - more like Porsche, junior.

      Eskie ManEskie ManPrije mjesec
  • Subaru needs to get rid off the cvt period. 6 speed manny or auto for life

    Christopher MartinChristopher MartinPrije mjesec
    • You have it azzbackwards - ALL auto manufacturers are steadily moving towards CVTs, whether we want them or not. If you don't already know this, you haven't been paying attention to the industry.

      Eskie ManEskie ManPrije mjesec
  • Port injection also affords one specific benefit that direct injection does not - keeping the intake valves clean(er). With direct injection, there is nothing to coat/clear the intake valve seats - thereby allowing carbon to build up. Over time, that will lead to worst combustion, lower power, lower fuel economy - and then requires the intake ports and intake valves to be walnut blasted. Ideally, you'd have an engine with both port and direct injection. Port would be used almost exclusively for cleaning the intake valves (a lower percentage of the fuel needed for combustion) and the direct injectors used for the majority of combustion. The Lexus IS250 is notorious for this issue (massive build up on the intake valves), so it is not a new issue.

    Joel MJoel MPrije mjesec
  • have fun changing spark plugs on this thing xD

    diego aranadiego aranaPrije 2 mjeseci
  • how about hybrid engines daaaaaa

    wilfried gronauwilfried gronauPrije 2 mjeseci
  • when i grow up ill have a FA24 in my impreza

    Daniel MaiselDaniel MaiselPrije 2 mjeseci
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