4 Reasons Why The Rotary Engine Is Dead

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8 жыл бұрын

4 Reasons Why The Rotary Engine Is Dead. The Wankel engine was last seen in a production car in the Mazda RX-8, and currently there are no rotary engines in production. Mazda may bring it back in the RX Vision, however there are many disadvantages to the rotary engine which has kept it from being successful. Rotary engines have a low thermal efficiency as a result of a long combustion chamber and unburnt fuel making it to the exhaust. They also have problems with rotor sealing as a result of uneven temperatures in the combustion chamber since combustion only occurs in one portion of the engine. Oil consumption is also a problem, as oil is injected to add lubrication and help keep the rotor sealed. Finally, emissions are poor and fuel economy is terrible, and ultimately this is the cause of it’s death.
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Пікірлер: 9 600

@BokBarber 3 жыл бұрын

"Why did the rotary engine die?" Part of it is probably how you have it all opened up on a table like that.

@sandervanderkammen9230 2 жыл бұрын

The patient died before it reached the operating table.... think of it as more of an autopsy.

@snowcrest7863 2 жыл бұрын

That's known as a "post mortem".

@tommyemler1763 2 жыл бұрын

I had a friend who wanted me to fix his RX-8...... So I talked him into putting 6.0 LS engine in it....... Then the only problem he had was keeping tires on it

@hosmashumake6410 2 жыл бұрын

Poor engenering. "The oil rec." Not good for a engine that by nature burns a slight amount.

@keywerd6403 2 жыл бұрын

@@tommyemler1763 lmao

@wupassvideos 8 жыл бұрын

1 reason why rotarys will never die. BRAAAAPPP BRAAAPPPPP BRAAPPPPPP BRAAPPPPPPP REEEEOOOOOO BRAPPPP BRAPPPP SCHUUUUUUUUU BRAAAPPPPPP

@two_number_nines 8 жыл бұрын

+Titanius Anglesmith trabant

@appelpower1 8 жыл бұрын

+Gotin Fuklio Trabants emit more poisonous substances than a VW diesel. And it's slower than a horse. And less reliable. And once you placed your order, it took longer to arrive than a baby horse. But Trabants are still undeniably cool.

@josevaldez9177 8 жыл бұрын

+Titanius Anglesmith Cshoo cshoo ccshoo

@appelpower1 8 жыл бұрын

Titanius Anglesmith Holy shit, I just realised your name is a reference to the Futurama episode in which Bender became addicted to Dungeons and Dragons!

@nickbelanger5225 8 жыл бұрын

+Titanius Anglesmith Nah man, 2-strokes give you a better BRRAAAAP:CC ratio

@SiliconPower74 5 жыл бұрын

Who wants fuel economy when you can rev to 9K RPM and spit dragon flames ?

@dandoesjunk7546 5 жыл бұрын

Exactly. Besides, rotaries are more suited for race cars and not really meant for the street.

@K4TORG412 5 жыл бұрын

@@dandoesjunk7546 thats why they are banned in racing because they would dominate so hard. light small extreme powaaaa, like two strokes in bikes^^

@verttisyrjala2897 5 жыл бұрын

Rotaries are 100% meant for racing, they can achieve a really good amount of power for their displacement or for any displacement really, they rev high and dislike low revs.

@K4TORG412 5 жыл бұрын

@UCjNLcDavj2EZTPqBlGQp1Pg yes but like two storkes the eco people hate on it but the little 250 cc bike is no turbo 4 rotor that goes throw gas in cubic meters and kills pandas ^^

@xhearthfirex6571 4 жыл бұрын

And have a very nice sound and idling. And who could forget the perfect 50/50 weight destribution of an Rx-7

@dennycahyalie3775 5 жыл бұрын

It's not about the miles per galon. But it's about the smiles per galon

@gazlink1 5 жыл бұрын

Says the person with terrible miles per gallon.

@luiscarbungco7441 5 жыл бұрын

Happiest man alive XD

@mickjager5974 5 жыл бұрын

@@gazlink1 He said galon not gallon

@gazlink1 5 жыл бұрын

@@mickjager5974 still said by people with terrible miles per gallon.

@Bartonovich52 5 жыл бұрын

Per gallon of oil?

@davidspin581 7 жыл бұрын

Mazda should employ the emission engineers from VW, problem solved..

@aboston5740 5 жыл бұрын

i believe you mean ceo.

@Orinslayer 5 жыл бұрын

😂😂😂😂

@Tuppoo94 5 жыл бұрын

It's not going to help because the problems are caused by the engine design itself.

@Lukaus1241 5 жыл бұрын

🤣😂🤣

@adamgilchrist5978 5 жыл бұрын

boom, roasted

@awittypilot8961 8 жыл бұрын

I worked for Mazda for years.....the ONLY rotary cars that came in on a wrecker either had a dead battery, run low on coolant (the water pump cavitates if the coolant is more than a quart low) or the oil level was not kept up or the oil had not been changed regularly. We raced an RX3XP and they made us stop racing it because it outran everything that we came up against. Also your comparison with the corvette is full of crap.....they shut 4 cylinders down when in cruise/highway mode to get the fuel economy and they make a HELL of a lot less HP in that mode. When they're making 400hp or more they burn a hell of a lot more fuel. Horrible comparison......BTW...if the motor is tuned correctly the carbon deposits in the curves are very minimal.....we NEVER had seal problems with cars that were taken care of. I've seen engines that had a million miles on them and still passed factory specs........They got a bad rep because of people that didn't take care of them.

@gsilcox 8 жыл бұрын

The Rotary engine is fast despite the lower HP. Redline is around 8000 rpms. I had a 76 Mazda truck which was a sleeper. I could take on anyone!

@cxvila 8 жыл бұрын

Yea. You can't compare modern cars that cost thousands of more dollars to an Rx-8

@loopshackr 8 жыл бұрын

In 1973 I bought a '72 Mazda RX2 with 12K miles. It got 17mpg, but gas was only 35 cents/gal. ($1.89 today). A year later gas prices had doubled, so the joke was on me. At 35K miles, the seals between the rotor housings failed, which turned out to be a known problem and right on schedule. Mazda covered half of the rebuild, but it still cost me about $350 in 70's money. After that, I drove it until 1981, 100K or so, with no more engine issues, while gas rose another 50%. A few years ago I searched the 'net for '72 RX2's - as best I could tell, virtually none even exist anymore. The thing would really run, though.

@awittypilot8961 8 жыл бұрын

loopshackr In the early days they had side and apex seal failure. They fixed that and if properly cared for they ran great for long periods. A lot of people crapped their paints to find 4 barrel carburetors on them. They were very easy to increase the power but they came apart because of the sun gear failure at high RPM. We fixed that racing in Florida by heat treating the sun gears. We never had another failure. The RX3XP was a 90 cu inch motor and made a bunch of power. We had a ton of fun racing them on the stock car tracks.

@cxvila 7 жыл бұрын

+The real doktorbimmer nah wasn't he comparing it to a corvette?

@Michael-ys5cn 3 жыл бұрын

Thank you Mazda for taking a chance and standing behind something different! The no piston Rotary!!

@sandervanderkammen9230 2 жыл бұрын

Mazda took a chance... and failed.

@8828RR 2 жыл бұрын

We need more people to see the great sides of the rotary engine instead of blowing the bad sides out of proportion.

@sandervanderkammen9230 2 жыл бұрын

@@8828RR The Wankel engine offers no advantages over a reciprocating engine... this is exactly why the Wankel engine became the greatest financial failure in the entire history of engine manufacturing. Legitimate engineers or engine manufacturing companies are no longer interested in this inferior and now obsolete technology. Mazda was the very last company manufacturering the Wankel engine in series production anywhere in the world, they abandoned development in 2009 and production ended a decade ago. Any questions?

@tomdaniels3392 2 жыл бұрын

How did they stand behind it??? isn't the motor dead???? like the video says........... Emissions nightmare obviously a failure

@jkliao6486 Жыл бұрын

@@sandervanderkammen9230 Tons. You stated a bunch of things happened without even addressing the reason behind those, and yet think you have a coherent argument and pretend to be like an expert? Lame. Why doesn't it offer any advantage over a reciprocating engine? How is it connected with everything else? You are just reiterating what basically is: "it went out of production". A lot of correct but meaningless words.

@Itz_Izeck 4 жыл бұрын

Who need good mpg when you can have braps instead

@mj6463 3 жыл бұрын

Two stroke dirt bike: INTENSIFIES

@rotorthermotech1310 3 жыл бұрын

Tyler Rufener fuel efficiency ??? What’s that ? I’m just enjoying driving 😉

@Itz_Izeck 3 жыл бұрын

Rotor Thermotech 100%

@cavekritter1 3 жыл бұрын

Wankel wankel...

@richardcollins1217 8 жыл бұрын

Got worried we wouldn't see a white board for a minute. Man that was a close one :P

@dontbeghey 8 жыл бұрын

LMFAO

@Xeverous 7 жыл бұрын

wanted to give this vid a like, but when I saw Imperial Units...

@speed2998 7 жыл бұрын

President Carter was pushing the US to go metric for several reasons, including that of making US products accepted in the rest of the world--metric versus US Standard hardware. Elementary schools started teaching kids to think in the metric system. The next president (whose name is not uttered in polite company) believed the US was the only nation that mattered. "Why should the mighty US conform with the rest of humanity? Let them accept our system." So, as he tossed Carter's solar panels off the White House roof, he also tossed out the conversion to metric.

@Dannys99887 7 жыл бұрын

We adopted a stealth form of metric conversion. The conversion was made and very few people noticed it. Try to buy a fifth of whisky. It's now 750 ml. Or try to buy a quart of anything.It's now a liter. That "16 oz" bottle of soda is now 500 ml, with "16.9 oz" in parentheses below. Pretty much only the road signs in miles remain unchanged.

@itsallrobbish 7 жыл бұрын

Dannys99887 Good, the quicker metric takes over, the better, it makes more sense. (From the UK(we still use miles))

@JaronLindow 7 жыл бұрын

Before watching this video, I'm going to have to say the answer is obvious: The rotatory engine died because YOU TORE IT TO PIECES! You monster.

@daverosgarrett8040 7 жыл бұрын

I thought it died because it popped an apex at 1:47

@JaronLindow 7 жыл бұрын

Daveros Garrett It appears by 1:47 in the video, the engine has achieved a state of 100% compression loss.

@Hwje1111 7 жыл бұрын

Jaron Lindow Lol

@stevenpadilla4294 7 жыл бұрын

Jaron Lindow lol.

@michaelzervas8010 7 жыл бұрын

Jaron Lindow just wow *sarcasticly claps hands slowly*

@enescakr4203 5 жыл бұрын

+how old are you ? -idk between 25 and 45 +What do you mean -(sends pic of engineering explained guy)

@permadifauza5251 4 жыл бұрын

😇 enes. I like this boy. good for US president. make detroid automotive win again. trump war subtitute 👍

@ariesmp 4 жыл бұрын

I would go for between 15 and 45.

@GiorgioBaggetto 4 жыл бұрын

He was born in December 13, 1989

@SuppositionalBox 3 жыл бұрын

@@permadifauza5251 Trump war?! LOL What do you mean by that? Do other countries view it as a coup d'etat? xD

@ELP1125 3 жыл бұрын

😂😂😂😂

@railgunawesome7114 3 жыл бұрын

The first point about shooting flames seems like an absolute win

@aerox1930 3 жыл бұрын

It is bad for your car, and that leads to many complications, hot fuel is bad for catalytic converter too, so you are going to emit bad gasses into atmosphere.

@quincerunitup 3 жыл бұрын

@@aerox1930 cat delete and there’s a reason a good percentage of the road driving electric cars so emissions not a big deal for one car. If every car was rotary... different story

@sandervanderkammen9230 Жыл бұрын

Apparently not since people stopped buying them..

@joecausey8508 6 жыл бұрын

I've owned two RX-7s and fell in love with both of them. My second one was a 1993 model with twin turbos, 255 horsepower, with explosive acceleration! Sure wish I still had it.

@sophiepaterson7444 4 жыл бұрын

My friend had an early model Rx7. That thing used to scare the pants off me. The only thing that seemed to limit how fast it could go was finding enough straight road. Mad car. I just hope that material sciences will be able to solve some of the problems and we can see a return of the rotary.

@markcozzie 4 жыл бұрын

@@ants621 Rotary far from dead,the vargas bros are building some epic engines, then got people like PAC & PPRE doing billet engines now 👍

@sandervanderkammen9230 4 жыл бұрын

@@markcozzie The Wankel engine has been completely obsolete since 2012.

@sandervanderkammen9230 4 жыл бұрын

@California Dreamin Mazda's board of directors cancelled further development of Wankel engines in May 2009. There have been no new prototype Wankel engines seen since the 16X in 2008 and it too was cancelled. Mazda has not unveiled a new production Wankel engine in a quarter of a century.

@sandervanderkammen9230 4 жыл бұрын

@California Dreamin Multi-valve engines are certainly not radical new technology, so definitely not a fitting analogy. Radical new technology is VVT, VVL, VCR and electronically controlled stratified charge mode combustion made possible by direct gasoline injection. Sadly all technology that cannot be successful adapted to the obsolete Wankel engine due to the inherent limitations of its basic fundamental geometry.

@EngineeringExplained 8 жыл бұрын

For those curious about the advantages: kzfaq.info/get/bejne/qcpmo62lt5q0kY0.html

@eplusz 8 жыл бұрын

+Engineering Explained I didn't see any flames or brap sound sound in that video, you need to make a new one and add illustration to it.. lol ;)

@joshkiej6601 8 жыл бұрын

+Engineering Explained you should have compared the rx8 to cars thats started production in the early 2000's to keep it fair

@danielmwai412 8 жыл бұрын

I had no idea your hands are that hairy!! Nice job though.

@katanamast279 8 жыл бұрын

+Engineering Explained Awesome video. You should build one

@BramCollier 8 жыл бұрын

+Engineering Explained Thanks for the vid, my teacher mechanics gave us a task about engines and my part is about Rotaries so this is very useful ;)

@Se1fD3struct1on 3 жыл бұрын

"spitting flames out the exhaust" you say that like its a bad thing.

@HotSneks 4 жыл бұрын

Rotary fanboys: "B-BUT MUH SPINNING DORITO!!" I'd still kill for an FD though.

@xynstav 4 жыл бұрын

If you care about fuel economy ur not a real car guy lol

@levibrousseau7608 3 жыл бұрын

bruh same

@jiroweiler5883 3 жыл бұрын

I can almost assure you.... anyone who clicked on this video would kill for a mint conditioned (or damaged but repairable) RX-7 FD

@FRANK101101101 3 жыл бұрын

the Dorito was not even invented when the rotary smashed Mercedes hopes at lemans, B-But MUH my corvette never ran lemans, cause it was to fat and slow.

@FRANK101101101 3 жыл бұрын

@@jiroweiler5883 hmm, rx3 for me, 600kilo lighter, you can make an rx3 handle.

@neo123321 5 жыл бұрын

I had an RX8 and I loved that little thing, I never had a single problem with the Rotary engine but that’s not to say others didn’t. Yeah the Rotary engine is terrible on fuel and here in the U.K. they are in the highest tax bracket which at the time was like £500 a year because of the high emissions. But it was a pretty dependable car as long as you checked the oil and made sure to warm the car up before racing about or turning it off. It just gobbled the back tyres up but that was more my fault because it was great to go sideways in. :) Also the Rotary engine made a great little noise as it was revving up and I enjoyed hitting the super high red line and every time I did the car would thank me for it. If they could improve the fuel efficiency, less oil burn and a bit more power say 300bhp I would definitely get another Rotary car.

@jasonwills1116 5 жыл бұрын

James Williams great to drive butunaffordabletokeepasaneverydayvehicle. Goeslikesn snot off a stck. constantlyworriedaboutheigrepairbils coming.

@jasonwills1116 5 жыл бұрын

James Williams brilliant.

@harre0267 4 жыл бұрын

Well there are rotarys with turbos that have over 1000hp

@Jayplaya95 4 жыл бұрын

I got one now smiles every day I love it

@BSIgie14 4 жыл бұрын

Oh, so you turn right to go left and vice versa, eh? That explains your back tires' wear..

@troutmaskbob 7 жыл бұрын

The RX-7 was a well balanced car and a lot of fun to drive. Don't let it over heat.

@QurttoRco 6 жыл бұрын

it would have been all those things and much more with high revving 2.0 liter.

@untouchabledriver87 6 жыл бұрын

True, a 2.0 3-rotor would have been optimal for it!

@weltvonoben 6 жыл бұрын

Best on the rx7 is the sound

@snowwhite7677 6 жыл бұрын

Hese are all lies. The Rotary is a minority engine being oppressed by the Patriarchy!

@venusreena2532 6 жыл бұрын

My son bought a neglected one years ago..I wanted him to keep it ..but no

@kiddovr3147 5 жыл бұрын

The rotary may not be fuel efficient, but a 3-4 rotor Mazda 787/787b Group C car has to have one of the craziest sounds ever.

@rotorthermotech1310 3 жыл бұрын

The best

@adamhlali8106 3 жыл бұрын

Not to mention is was the first Japanese car to win Le man's 24 hours. First car without a recipicating engine, and got wankel engines banned from the race.

@sandervanderkammen9230 3 жыл бұрын

@@adamhlali8106 The Wankel engine was not banned after the race, that is a lie.

@sandervanderkammen9230 3 жыл бұрын

@@adamhlali8106 Mazda lost the 1091 WSC championship to Jaguar, the 797b was extremely slow and uncompetitive, it never posted a single pole position or fastest race lap. It's lost 20 out 21 races and was quietly retired.

@MiguelGarcia-vj7oo 3 жыл бұрын

@@sandervanderkammen9230 yup 100 percent correct....

@Prairiedrifter1 5 жыл бұрын

I wish my fiancé’s parents would say “hello everyone and welcome” when we visit

@maloku4619 3 жыл бұрын

@clint1285 3 жыл бұрын

lol, what do they say when u visit?

@CronusandRhea 7 жыл бұрын

But one doesn't buy one for efficiency...but out of the love of rotary and the RX SERIES.

@clay7182 5 жыл бұрын

Why love it if it is not efficient?

@dumdum7786 5 жыл бұрын

@Cheese Phuk because it's fun. I drive an old ass gas hog pickup truck because it's fun. Driving isn't just about the numbers, it's about the experience, it's about the enjoyment.

@letsgoBrandon204 5 жыл бұрын

It depends what you're into. Drive an old ass gas hog if you're into the fun of driving, or get one where you can rattle off some stats if you're a numbers engineering kinda person. It's all good

@torahwarrior2442 5 жыл бұрын

That's why an original rx3 coupe costs mega bucks now

@whatwasthat3269 5 жыл бұрын

@@clay7182 I do not love the Toyota prius.

@whatsongisthis5691 7 жыл бұрын

My 2004 Rx8 would get 20.5 to 21 on the highway. Never 22. When I would drive around my school's campus for 60 miles (speed limit 20-25mph) I would get like 10mpg. But it looked sweet and sounded great, so it was good enough for me.

@brettershoalar9001 6 жыл бұрын

Buddha BlazerSS and has way more torque, tho. And it is a V8.

@doktormcnasty 5 жыл бұрын

Thank you so much for crushing my rotary engine superiority dreams.

@sandervanderkammen9230 4 жыл бұрын

They were going to be crushed anyway but Jason was pretty gentle.

@wms1650 4 жыл бұрын

@@sandervanderkammen9230 He didn't cover they are difficult up to impossible to start in cold weather. Mid 20s if you miss first try............it is over for at least 30 minutes.

@sandervanderkammen9230 4 жыл бұрын

@@wms1650 Very true, Wankels have low static compression and often have leaking seals after a short time in service, coupled with poor combustion efficiency they can be extremely difficult to start in cold weather.

@somesmallstuff8647 3 жыл бұрын

69 likes :-)

@oldrrocr 3 жыл бұрын

still, having owned a number of exotic cars, this one is a CHEAP thrill.

@hamzabk7167 3 жыл бұрын

The way he explains is soooo simple and understandable thank you soo much ❤️🙏

@coolestpyro 8 жыл бұрын

3:50 It's not really good form to compare an engine from 2011 with engines four years newer.

@EngineeringExplained 8 жыл бұрын

+coolestpyro 2004 Corvette is heavier, larger engine, significantly more powerful, and still gets better fuel economy.

@coolestpyro 8 жыл бұрын

that's fine, it's just incorrect to compare an older engine to a newer engine in this context

@coolestpyro 8 жыл бұрын

The real doktorbimmer I'm not here to try and stick up for the Wankel engine, I don't really care whether it's a good engine or not as I don't own one. If one was comparing efficiency/horsepower/acceleration/etc of, say, a Corvette, Mustang, and a Viper, would you say it would be a fair comparison if the Viper and Corvette examples were from 2015 but the Mustang example was from 4 years prior? Of course not. Even if the results aren't much different, it's simply not good form to have a slanted comparison where all the examples except one are technology from 2015, and the odd one is is four years older.

@NooB-Celica 8 жыл бұрын

+coolestpyro 4 years probably isn't much of a difference with todays engines anyway. The technology has kind of hit it's limit. Hell, Chevy still runs pushrod technology... Conventional engine design is over 100 years old now, the Rotary is basically the only 20th century engine :P The Rotary has had less time to design, develop and improve over the convention combustion engine.

@stevenking2980 8 жыл бұрын

+The real doktorbimmer cannot argue with that. Anyone with eyes and brain matter behind... Just can't argue...

@1ofuhkind523 7 жыл бұрын

1 of the cons is that it throws flames??? How is that a con?

@Samarth916 7 жыл бұрын

Fuel getting wasted is the biggest con. I'm from India, and we have a manufacturer "Bajaj Auto" which got patented a twin spark plug design for low capacity motorcycles, and it actually gives a better fuel efficiency and engine performance, apparently by burning fuel better. Yamaha, Suzuki, etc. are far behind Bajaj here in sales. Only Honda is a challenge, that too only due to its scooters....

@FunkyFresh48 7 жыл бұрын

@Austin The video maker is a snowflake.

@jackvernian7779 7 жыл бұрын

fuel burns outside the chamber meaning it doesn't combust properly and you lose power.

@rizreid8670 6 жыл бұрын

What advances can or have been made by or in scavengeing unspent fuel?

@hoverzap7114 6 жыл бұрын

Seems like everyone is missing out.

@Australia-ky7kx 5 жыл бұрын

Excellent and informative video. Thanks for posting. In Australia the Mazda racing rotaries swept all before them. People fell about the place laughing until their hero's were lapped on the track either in production or racing classes. Unfortunately, early problems with seals doomed public confidence and the very expensive RX8 Sports Car had few takers. These days revving little turbo fours are the go but of course, the laws of physics will see these screamers destroy themselves and then consigned to the dump, as owners are quoted for repairs.

@battlecat4791 3 жыл бұрын

Wow! Really thorough and well-presented. Even though I knew a little about the problems with the rotary, I learned quite a lot from this video...

@simplywonderful449 3 жыл бұрын

Don't take this video as gospel. He's never owned a rotary, and it's a good thing as all he's done is quote you EPA figures, etc. He's had no real-world experience with them at all.

@johnnybikesalot 5 жыл бұрын

I'd love to have a small rotary engine as an outboard in my boat. The way lighter weight would more than make up for the fuel inefficiency in a boat setup, where it would be pushing way less water out of the way. And it would run so smooth and quiet. Very cool.

@joshcrd7925 8 жыл бұрын

They do not advertise the displacement of rotary engines correctly. The1.3l only takes one combustion chamber per bank into consideration. So technically it is a 3.9l. This makes the fuel econ look a bit better. But in turn makes the power output look atrocious.

@joshcrd7925 8 жыл бұрын

It was a typo. Sorry for not noticing

@Thirsty_Fox 7 жыл бұрын

It's difficult to directly compare. It's still a 1.3L, but it used it 3 times per revolution. Piston engines aren't measured on their displacement per revolution, just the total displacement of all cylinders combined. Each cylinder needs 2 revolutions per cycle, though.

@MetroidChild 7 жыл бұрын

unless you go two stroke :)

@sigmaprojects 7 жыл бұрын

Right, I don't get the huff/puff over the displacement. No one takes a two stroke that is a 100cc and say it's actually a 200cc. Displacement is the chamber where ignition takes place, not each rotor face. That's usually how it's done. I know in different racing organization and countries they'll use the degrees of rotation to figure out it's "displacement" because they're only trying to give referencing to compare with a 4 stroke. So basically they would compare how many times the rotary engine would fire for a single rotor in the same time it takes for a 4 stroke piston to fire. Either way it's all meaningless. Should just be metering how much fuel is consumed over time. Since displacement means dick when it comes to fuel consumption.

@sigmaprojects 7 жыл бұрын

The real doktorbimmer EXACTLY haha, that's what I was saying because fuel efficiency vs displacement size was being compared and I said that it's meaningless because fuel efficiency and displacement have nothing to really do with how efficient an engine is. Only it's fuel consumption over time vs kw output. True displacement? Then explain why a 2 stroke and 4 stroke have the same displacement under that logic. The amount of piston travel that a 4 stroke has to do is twice that of a 2 stroke. The amount of displacement between power strokes are different. Yet no one would say a 100cc 2 stoke engine is actually a 200cc engine. The reason why some racing organizations use degrees of rotation when figuring out its "displacement" is to compare to 4 stroke engines for figuring out rule balancing. A four stroke engine needs 720 degrees of rotation to complete one cycle. While the basic 2 rotor engine takes 1080 degrees for all 6 faces to rotate. So within a 720 degrees of rotation (the same rotation as a 4 stroke engine) you'll have 4 faces that have fired off. So that would be 654cc X 4 which gets you about 2.6L. That would be the most apt way to compare a rotary engine to a 4 stroke engine. But in general like 2 strokes and 4 stroke engines only being calculated based on one sweep of the face that's why you get 1.3L for the 13B rotary.

@thegallery6466 5 жыл бұрын

Great vid. Straight to the point and filled with good info. Thumbs up

@amramjose 5 жыл бұрын

I had a great looking 85 RX, silver, with the 11B engine and 4 bl carb. it was inefficient at any speed but it was so much fun to drive. I was the second owner and did not keep it for long, but I am a fan. I think it could come back if they made several improvements, some small, some major.

@jaredj631 8 жыл бұрын

Holy crap my farm truck (01 Silverado) gets exactly the same fuel efficiency as an rx-8

@Adam-zi5se 8 жыл бұрын

lol

@chek1n 8 жыл бұрын

+Jared Jeanotte probably makes 10x more torque too lol

@jaredj631 8 жыл бұрын

+jeffrey625625 yeah with a ton of feed in the bed too.

@Watcher3223 8 жыл бұрын

+Nathan Dance Oh, now 2-stroke engines are still around. They may be used in lawn equipment, but they're still around.

@unternichtuber4310 8 жыл бұрын

+Watcher3223 KTM Yamaha Suzuki Kawasaki and Honda may wish to dispute that statement

@e1123581321345589144 8 жыл бұрын

The most elegant engine is still the electric engine. It's a shame that we don't have adequate power storage to make it usable on a daily basis.

@GuruMeditationError 8 жыл бұрын

That used to be true! Now, the only remaining barrier is cost, and that will be coming down in the next 2-3 years. Get hyped!

@dougiequick1 8 жыл бұрын

Check out the Duke Engine!!

@e1123581321345589144 8 жыл бұрын

Ryan Ballantyne we can thank the smartphone industry for the advances in battery technology, and cost is not that big of a problem anymore, infrastructure is. I'm still waiting for Tesla to expand their charging grid in Eastern Europe, otherwise their model 3 seems quite affordable.

@itsJaeger 8 жыл бұрын

wtf tesla cars get 500km on a charge. how is that a "Flaw" with range, who drives more than 500km in 1 sitting

@e1123581321345589144 8 жыл бұрын

+The real doktorbimmer it takes 40 minutes to fully charge at their charging stations, and the charging time will get better over time

@jaylee7932 2 жыл бұрын

Great video. Down to earth explanation and gave me a good education on the subject. Thank you!

@squidusn71 3 жыл бұрын

Very informative, thank you!

@sixstringlove8242 8 жыл бұрын

Another huge disadvantage is the difficult manufacturing process. It is not easy to machine the parts because of all the odd angles and curves. I know, I worked for an engine re manufacturer and was the engineer who assessed the disassembled engine to see what needed machined, rebuilt, or just cleaned up. I hated the programming the CNC for those jobs. And the tooling is all different too. Just a pain in the ass.

@dannycool59x49 8 жыл бұрын

i lose curves

@popkornking 8 жыл бұрын

I imagine those special springs alone cost a ton.

@Mr032152 8 жыл бұрын

i'm in the market buying a used minivan since i'm over 65 and slowing down what do u consider the best nissan honda town/conutry

@edifyguy 8 жыл бұрын

This is in many ways an example of economies of scale. Because they were not widely adopted, the manufacturing remained poorly-understood, the tooling remained obscure, and the skills rare. Had they been in near-universal deployment for 100+ years as the reciprocal piston engines have, this would be a very different discussion.

@srpacific 8 жыл бұрын

The rotary engine was developed in 1929. I think it's had a lot of time to become widely adopted....

@epicman23478 8 жыл бұрын

But you gotta admit, the rotary makes a bada$$ exhaust note

@FunteX 8 жыл бұрын

Aaaah no, read up on it m8, you wont regreat it . . . ;)

@dan428 8 жыл бұрын

v6 and v8 does too.. not worth the disadvantages. it can't even provide a good amount of power.

@jamesg9333 8 жыл бұрын

Mate rotary's sounds like Chris Evans - the extremely annoying host of the new top gear

@FunteX 8 жыл бұрын

James G Nop, but you do. FACT!!! Rotary's sound awsome, wich is allso a FACT. Wich leads us to the FACT that you woulden't know a good sound even if it sat on your face, wich is now obvious to all . . . =P

@racketman2u 8 жыл бұрын

rotaries actually sound even worse than four-cylinders, BUT they are compact, give good power for their size (and I dont mean cc) and do rev like there's no tomorrow. Its their fuel inefficiency which killed them.

@OneEye. 5 жыл бұрын

His initial explaination on the combustion chamber was wrong, rotary's have a lead and trailing plugs. Lead fires before the lobe gets to almost flat center.

@robstone4537 5 жыл бұрын

I was watching that explanation and wondering why they did just not put in a second plug.

@cheese3416 4 жыл бұрын

He lied

@FRANK101101101 3 жыл бұрын

@@robstone4537 all of em had a second plug, the 787 at lemans in 1991 had three plugs per rotor.

@carlosbutler7811 3 жыл бұрын

That's why he is an engineer always right 2+2=5 🤣🤣🤣🤣

@DM-qp7do 5 жыл бұрын

Good video man, you're really good. You should have a TV show.

@bmwgtrm3 7 жыл бұрын

still... rx7/8 is dope ...

@Kampadakis_Junior 7 жыл бұрын

rx 8 is for dick, my rx8 blows up the engine in 88k kilometers and the new engine cost me 5000 euro.. so i buy a mercedes benz sl 63 amg

@TheWillingCoyote 7 жыл бұрын

I bought a brand new 1986 RX-7 and put over 140,000 tortuous mile on it before trading it in for another Mazda. I miss that car. I only got rid of it because of the 'then' girlfriend wanted a family car. I should have dumped that girlfriend, instead. Finally, four years later she was traded in. Advantages: 1. low weight of the ENGINE, especially relative to it's HP. You should not consider the total car weight when considering the performance of an engine. 2. ability to withstand extremely high revs. Yellow @6,500, Red @8,000 3. Get there fast. With a power band (torque & hp vs rev) . Torque didn't fade out at high revs like others engines. That very low engine weight gave you a very fast and nimble car that could send you out of a hairpin highway entrance ramp faster than the left lane 'rs because it had passive rear-wheel steering assist that would toe in/out the rear wheels when over 0.5 Gs were seen at the rear hubs. So when you took turns that would 'freak out' your passenger, the tires never squealed.

@TheNondiscriminatory 7 жыл бұрын

WillingCoyote ha, GAYYYYYYY

@EricWW2 6 жыл бұрын

#mgtow

@kieranjansz7888 6 жыл бұрын

TOFU

@fastnasty6627 6 жыл бұрын

Not really that fast and you were lucky one to get that many miles without problems. Or you're just lying to make it sound good.

@Liberty4MA Жыл бұрын

Really a good concise explanation. And I like the efficiency and speed of this video. Great stuff.

@danmiroballi9392 4 жыл бұрын

I’m hooked. Thanks again!!

@SirDavothe2 7 жыл бұрын

Rx9 is coming out in 2020 with a rotary. Not dead yet!

@SirDavothe2 7 жыл бұрын

long live the rotary!

@patmald 7 жыл бұрын

beat me to it

@SirDavothe2 7 жыл бұрын

***** why do you say that? Personal opinion?

@SirDavothe2 7 жыл бұрын

***** Oh, my sources said 2020 but I haven't looked to far into it. That second part is an odd thing to comment on a rotary video but hey.

@Cara.314 7 жыл бұрын

too bad they suck...

@ratshitstrap8622 6 жыл бұрын

but... Dorito Power ;-;

@ChipChapinSJ 3 жыл бұрын

Very concise and helpful. Thank you.

@chriskleckner1659 5 жыл бұрын

Great video...you covered all the bases.

@uptownsamcv 8 жыл бұрын

good video, i never knew it had oil injection ....

@arealassassin 8 жыл бұрын

+samuel nope me neither, I just haven't gotten that much into them. God what a horrible thing, no wonder it never was a success.

@DatJaicoKid 8 жыл бұрын

+arealassassin yeah haha we have to top up oil every other time we fill up (which is a lot)

@RotaryTurbo 8 жыл бұрын

+samuel lopes Yea, I had a first gen (84) and they even had that in those model years. Just a matter of design, as he says. Since the systems were prone to failue, causing a lack of lubrication, most people just delete the system entirely and mix oil in the fuel like a 2 stroke engine. Just have to remember to add a quart or so of oil each time you fill up with fuel. Heh.

@dragoss16 8 жыл бұрын

+samuel lopes yeah , is like 2 stroke engines , but 2 stroke engines are infinite better than this crap

@E9X330 8 жыл бұрын

+dragoss16 lol hater

@spladam3845 7 жыл бұрын

Liked and subbed, great video. I think I'm gonna love this channel.

@EngineeringExplained 7 жыл бұрын

Thanks for subscribing!

@edwardarakelian8315 3 жыл бұрын

Thanks mate, very clear explanation!

@jessiccabatista6044 3 жыл бұрын

Great video! I understood it. Thank you.

@MrAzizsasuke 8 жыл бұрын

1.3 makes 200 Hp impressive

@Captaindan7141 8 жыл бұрын

+AZiZ True, but they are totally different from reciprocating engines. If they were measured the same way as the air/fuel burned per rotation, they would be considered a 2.6 liter when compared to conventional/reciprocating engines.

@PrimiusLovin 8 жыл бұрын

+Dan Bonnett I think they are considered as a 2.6 liter engine, at least that's how I remember the RX8 being road taxed in my country some years ago (2 x 1.3L displacement)

@Sheehy223 8 жыл бұрын

They make great horsepower, but hardly any torque.

@TheGrayWarbler 8 жыл бұрын

+MaxTheKanuck bullshit. I'm sorry but i'm so tired of hearing that myth. I smash all sorts of cars going (intentionally)uphill because they still believe that tired old bullshit

@cowpow1234567890 8 жыл бұрын

+FLoYdInPink What are you running with? I have an R3 so I would agree that they are low on torque front myself, but really the Rx-8 is more of a AE86 than a 2JZ powered monster. Do you have like an FD?

@whatsforsupa 8 жыл бұрын

Everyone thinks that RX-8's are the greatest cars "they can rev forever and so fast and sound so good like omggg" but if they ever owned one, they will quickly realize they need constant care, and will gouge your wallet on gas. Well, atleast insurance is decently low on them, and they do sound AMAZING

@Jonesboy2398 8 жыл бұрын

Yeah I'm 17 and drive one your not kidding about the wallet

@_Despair 8 жыл бұрын

+Josh Wallace If you think rx-8's are gas guzzlers.... mate you havent seen the 13B turbo. Just picked up a 87 FC about a week ago, filled it up twice already. (50 liter tank running 98 octane). You can actually see the fuel needle dropping at 8k rpm haha

@snatchclap 8 жыл бұрын

+Josh Wallace Aren't sports cars supposed to gouge your wallet though? My biggest gripe with the RX8 is that you can't really upgrade it all that much. Mazda got about as much power from an NA rotary as you can get, the renesis does not take turbo. The intake is incredibly optimized. You can port it, but that's costly for amount of power you gain. You'd have to spend a couple grand to get lighter wheels than stock. Oh, and mine has been sitting in the driveway with a warped housing for a few months now. It still drives but you have to wait 20 minutes for it start again after turning it off. Over heated it on the hottest day of the summer sitting in traffic. If the temperature gauge moves at all above where it normally sits, the engine is warped.

@darknez09240 8 жыл бұрын

+Josh Wallace its never meant for pussies,only for car guys who don't care to spend money working on it and taking care of it,just bring it to the track and you get heaven

@Flyingdutchy33 8 жыл бұрын

+Josh Wallace You find me a true sports car that is cheap on your wallet please.

@gneumisover9000 4 жыл бұрын

Love the video. Thanks!

@donmoore7785 5 жыл бұрын

I loved driving my dad's RX-3. It really did go "mmm" - until a corner seal fell out, and seized the engine. I rebuilt it, which was a lot of fun due to the novel design. But realistically, I would have to agree its disadvantages outweigh its benefits for the purpose. It had great acceleration though, and I seem to recall doing 50mph in 2nd gear.

@Barnaclebeard 7 жыл бұрын

What's with the one dude who has to reply to every comment on this video and get into a pissing match each and every time?

@EngineeringExplained 7 жыл бұрын

KZfaq comments can be an addicting and dangerous place haha. I try to stay nice and civil, but who knows what goes on down here.

@Kane615 7 жыл бұрын

He's got to be living one hell of a sad life to dedicate so much time to arguing over a bloody engine design.

@johanusyolder 7 жыл бұрын

#NeverTrump Let the games begin.

@carbon0HUN 7 жыл бұрын

haha i know ,right

@mungofish81 7 жыл бұрын

He is obviously a right Wankel....boom, dropping in bad puns since 1981

@hoverbike 7 жыл бұрын

Boost pressure goes in Apex seals go out

@durrtybuck8949 7 жыл бұрын

lol 😂😂

@dumdeedum2000 7 жыл бұрын

Hoverbike not unless you premix

@ahambrama 6 жыл бұрын

That was long ago...Update your info plse ..LOL

@ahambrama 6 жыл бұрын

No problem with seals anymore...

@youandiryan 6 жыл бұрын

HAHAHAHA. Yep. You sir are correct.

@drnaveengopal 5 жыл бұрын

Excellently explained... Keep it up.

@f308gtb1977 2 жыл бұрын

Excellent explanation, thanks!

@waynemetevia7983 6 жыл бұрын

Thank you for explaining this. Always wondered why it wasn't around for very long. Although i can't help but wonder if any attempt was ever made to design a more efficient and reliable version. After all, the piston engine has come a long way in design and efficiency.

@mrreymundo5383 7 жыл бұрын

Would you do one on why steam engines are no longer used in vehicles?

@GeneralG1810 7 жыл бұрын

They're powerful but inefficient

@GeneralG1810 7 жыл бұрын

The real doktorbimmer Yeah gas turbine is pretty damned good, but I'd actually give the edge to a steam turbine. Fact is the only thing that limits them are the materials they're made of. If the materials could take it you could just keep superheating the steam and produce more and more power

@mrreymundo5383 7 жыл бұрын

Given the possibility that there are more efficient designs possible to harness steam, so far the only possible "legitimate" objection I have heard to steam is that there might be a large loss of energy at the point at which water is converted to steam. Does anyone know the rate of efficiency in converting water to steam? (Naturally this might be partly influenced by the mechanism of conversion, but I assume there is a maximum theoretical efficiency.)

@benruss4130 7 жыл бұрын

40.7 kJ/mol, and there is about 210 moles in one gallon of water. And it's not so much as "efficiency" but more along the line of that is what is required to do it. You do not lose the energy, it is just stored in the steam, until it transitions back into liquid form. The primary way a steam engine is inefficient, is by the inability to perfectly insulate it. This issue is "mostly" resolved in nuclear reactors, because it is a sealed system, but in good old ma and pop coal burning engines the exhaust alone steals truckloads of energy from the system. the only way to make them very efficient would be to find a way to make sure every drop of heat generated goes only to the steam, and do so without use of power, which is impossible in the foreseeable future. The best use of water based "energy" systems is in hydraulics, because all it is, is moving a liquid through a tube, but the sky is the limit on it.

@benruss4130 7 жыл бұрын

I am aware that Steam power is incredibly inefficient currently. I am not claiming otherwise. What I AM say is that if we manage to find a way to reuse the thermal energy, or to "pipe" it back into the start of the reaction, it COULD be made significantly more effective. And don't bother browbeating me like you have everyone else that posts in this discussion.

@bobvaness 4 жыл бұрын

Thank you for this video I had no idea how inefficient rotary/Wankel engines were.

@jasondashney 4 жыл бұрын

You clearly never owned one, haha. I loved mine, but goddamn was it brutal on gas.

@macunion1225 5 жыл бұрын

this is a great piece all credit to you , but its just noise to me , i swapped my RX3 coupe monster port for a celica turbo about 20 years ago and ive missed it every day for those 20 years , barp barp barp i miss you

@Archi891 8 жыл бұрын

I prefer the way you explain things now, with real-life parts and a bit of white board. Great job, thank you :)

@halolime117 6 жыл бұрын

Let's all be honest here. We all really love these engines, but they make no sence what so ever...

@johnburns4017 6 жыл бұрын

The wiki article is good on the rotary engine. Have a look.

@erwinnijs1 6 жыл бұрын

Great for racing though!

@MrSantihomer 6 жыл бұрын

Is nice to see a Rotary fan with common sense. So many fanboys don´t understand that is ok to like something that isn´t the best option.

@silverstorm6973 6 жыл бұрын

Like a lime many amazing things makes no sense

@madjoemak 6 жыл бұрын

Well no... They are smaller and lighter so they can be placed lower making the car handle better. They love to rev and just look at the mazda 787b from the 1991 le mans race. It won easily

@Ben83597 5 жыл бұрын

Good insight! Now I understand why the engine design has been put back on the shelf.

@giorgosmalfas7486 7 ай бұрын

The best Rotary analysis I've ever watched. Now I know why this engine is never going to make it back.

@TylertheGeek28 7 жыл бұрын

I like how you have random engines and part just laying around makes videos expected and entertaining

@Danger_mouse 6 жыл бұрын

An interesting point on the emissions side. In the 90s Mazda Japan had a fleet of 626 station wagon test vehicles running around with commercial operators testing a hydrogen version of the rotary engine. Mazda hoped for zero emissions certification with CARB once testing was completed and the engines did indeed have no measurable emissions. However, CARB refused to certify them as the asked Mazda ' Do you still lubricate the rotors by oil injection'? Mazda replied that they did, but the amount was so small that emissions could not be measured with any current test technology. CARB stood firm, and the engine was refused. 😔

@AKSoapy29 5 жыл бұрын

That's interesting! I'm curious how a rotary would do on propane, since it is a hydrocarbon.

@elitewolverine 5 жыл бұрын

@@AKSoapy29 There is a bike where a guy does a propane powered rotary bike, called Dragon's Breath

@AKSoapy29 5 жыл бұрын

@@elitewolverine Ooo, I'll have to check that out. Thanks!

@CaberFeidh 5 жыл бұрын

I would have to see that to believe it. The Wankel injects oil into the chamber, along with the intake charge. No liquid fuel would make it a difficult proposition to properly disperse the oil necessary to keep the seals from welding themselves to the walls. There is no way, with current lubrication technology, to make a "zero emission" wankel.

@elitewolverine 5 жыл бұрын

@@CaberFeidh Depends on how hot the explosion gets. An air powered Wankel powered by compressed air would technically meet your standards. And if you do it in a closed loop with a screw compressor to recompress the exhaust, the air will have a lube in it from the compressor. Solving it. We just have to ensure the compressor is powerful enough to halfway keep up.

@thegallery6466 5 жыл бұрын

I also liked the way you actually showed how to rotor moves inside the housing

@gooser1981 5 жыл бұрын

Great video!!

@VR46champion 8 жыл бұрын

I still have faith in Rotary. Who knows maybe somebody will fix all the problem and remake the rotary in the future. Just like how intake and exhaust valve lift works in VTEC, I'm not sure if alot of people know but VTEC was not even invented by Honda but it was a different manufacturer. However, it did not works smoothly as intended by whoever that manufacturer is so Honda tried their very best to make everything work smoothly then they made the VTEC patent. Hopefully Rotary engines come back to life again.I work in Mazda and there is 2 RX8's in our lot sitting collecting dust and molds because it needs an engine work "delivered by a tow truck". Sad to see those sit knowing Rotarys are one of the icons in auto racing.

@johnburns4017 8 жыл бұрын

+Mark RX-Vision kzfaq.info/get/bejne/rJmleq1437u9c30.html&lc=z12lvzv5ek2fhxjq104ccbhh1r3xwpwwozw0k

@lexscar1 8 жыл бұрын

+Mark Honda did indeed invent the VVTI system later it was used by Toyota under licence until Mercedes and BMW decided to produce a look alike system which is still used today,

@VR46champion 8 жыл бұрын

Paul Renton don't confuse VVTi from VVTL-i . VTEC has 3 different forms. There is a performance and there is an economy version. And again, no. Honda DID NOT invent this technology.

@braggyg2 8 жыл бұрын

I agree with you brother! I used to an RX7 (FC3S). That was my first car I ever owned, and I loved it, however the downside was the fuel consumption and I had problems with the apex seals twice, so I had to spend money just to have it rebuilt, then one I just gave up and sold it. But, I still miss the sound of a rotary engine and I badly miss the FC.

@VR46champion 8 жыл бұрын

Buenavene Abragan yea man when you own a Rotary, you should not care about fuel consumption in the first place :p . Yes the apex seals are always one that needs to be replaced. Another RX8 got towed in the shop last week and guess what it needs. We never had an RX7 yet but I understand why. RX7 FC and FD owners will rather choose to go to a tuning specialist shop than a dealership. That's what I will do too anyway haha

@EvanMoon 8 жыл бұрын

Another great vid. Suggestion, hit up Expo markers and get sponsored by them. Everyone makes comments about your white board and how much u use it, time to cash in

@fidelramoscastro3153 Жыл бұрын

Great info. Thanks

@friedoutmukke864 5 жыл бұрын

Wow thats some quality content right here...keep up the good work

@BlakesGarage 8 жыл бұрын

Such a cool looking design!

@AaronMelendez23 8 жыл бұрын

+Blake's Garage you're just everywhere lol Love your Channel Btw

@bullsfan2021 8 жыл бұрын

+Aaron M STALKER

@nekokami3132 6 жыл бұрын

To be honest rotaries have flaws but I love my mazda RX7 and love the unique sound it makes

@KRColson 3 жыл бұрын

That was an excellent description of the rotary engine and it's misgivings. Well done indeed.

@sandervanderkammen9230 3 жыл бұрын

Wankel engine... this is not a Rotary type engine.

@pasion4piano 5 жыл бұрын

Back in 1980, my brother was driving the X3 station wagon . Very powerfull but also very hot for the tail pipe melted the back trunk floor.

@eliauld6788 3 жыл бұрын

LMAO

@ExaltedDuck 6 жыл бұрын

The LiquidPiston X engine looks like an interesting solution to a lot of the problems in the Wankel rotary. It seems to have DARPA support for development as a next generation replacement for the Wankel's in use in drones and might be a good option for hybrid roadgoing vehicles as well.

@VedadSmjecanin Жыл бұрын

100% Imagine 3 or 4 LPs together, instead 4-4 roto

@F1ferrari09 5 жыл бұрын

I recently had this dream where someone down the street from me owned this pre production copy of this Mazda hypercar called the R9. It looked kinda like the Furai but it had a 4 rotor in it and according to the owner Mazda wanted to get in on the hypercar market by making the ultimate hypercar. It had over 750hp and weighed in the low 2000 pounds range apparently. Never got to hear it started up unfortunately but the idea of something like that sounds insane.

@rotorthermotech1310 3 жыл бұрын

Check out “Rob Dahm”. His KZfaq channel is making your dream

@nitdiver5 5 жыл бұрын

Interesting. Great presentation. I’d not seen a rotary engine from the inside before. I thought it was more like opposing pistons in a triangular form but this is completely different.

@geoffringham1051 5 жыл бұрын

Very well explained.

@fungoidfest100 8 жыл бұрын

Actually, these are wankel engines, not rotary engines. In a rotary engine, the crank is securely bolted to the vehicle, while the crankcase rotates. Seldom seen outside of aircraft of the WWI era and a few years afterward, but very common at that time.

@ALIVE8455 8 жыл бұрын

Lol wtf. Makes me think of when someone tried making the rear wheel of a motorcycle THE engine. A radial type with the cylinders being the spokes

@DavidBainGaming 8 жыл бұрын

Seems to me that you're describing a Radial engine

@ShadowFalcon 8 жыл бұрын

Nope. A radial is a fixed engine block, with a rotating crankshaft. A rotary has a fixed crankshaft (mounted to the firewall), with a rotating engine block (that's why it's called a rotary). Also, given how the rotary works, it has a total-loss lubrication system.

@dvl973 8 жыл бұрын

The real doktorbimmer have any link to support your idea? I mean it says right there that it is pistonless rotary engine there is no piston that is a ROTOR the only person using slang here is you, calling that rotor a "piston"

@dvl973 8 жыл бұрын

The real doktorbimmer do electric motors use "pistons" too? :D you're a funny guy

@david_1956 5 жыл бұрын

Got to drive the early 70's models (RX-2). If you revved it up and turned off the key.....KABOOM!!

@bernie52ado 4 жыл бұрын

Yep...I owned a RX-2

@pierredaher9590 4 жыл бұрын

Excellent explanation.

@dementedweasel1 8 жыл бұрын

I had an RX4 granny car which got terrible gas mileage which was explained by the Holley 4 barrel on this tiny engine. However, the impressive part was that I was able to outrun anything that lined up next to me at the stoplight. And I mean anything. And that's with a manual 5 speed. Redline was infinity. There was a buzzer sound when the car reached 8 grand. Acceleration was almost instant and flawlessly smooth. Say what you will but when that engine worked ,it really worked! It was the ultimate sleeper car. I miss it.

@WRCEVO3 8 жыл бұрын

Exactly ! The rotary will never die. In New Zealand they are everywhere and always in car magazines. There's also a car show just for rotarys. A mint genuine rx3 is now worth 30k Nz dollar.

@crobulari2328 8 жыл бұрын

+Christopher Wyller Yes they worked all right for 5 minutes at least.

@dementedweasel1 8 жыл бұрын

I sure wished they'd try to perfect that motor. I'd get another one for sure. Even with the bad mileage. It sure was a blast having one.

@stephenallen8699 8 жыл бұрын

+Christopher Wyller love me rotors nothing beats the sound of one at full noise anyone that complains has never been in a good one and for all the wankers that say they dont last long hasnt seen one built by a good engine builder

@dementedweasel1 8 жыл бұрын

I was thinking of trying to rebuild the one I had but I ended up getting a Nova and a Camaro so it went to the junkyard. Pity I guess. I wasn't even sure you could get rebuild parts for one anyway.

@alphawav3 6 жыл бұрын

4 reasons the Rotary Engine is Alive : 1. The sound / 2. The awesome feeling of its perfect center of gravity / 3. High RPM range is bananas / 4. Gas is still available 😂. Great Vid btw as always.

@DapperHesher 6 жыл бұрын

A two stroke does all the above better.

@cenanmehmet 5 жыл бұрын

Ebrahim nalla if gas unavaible we can discover electric powered rotary :D

@lerodman 5 жыл бұрын

Low vibration!

@0calvin 5 жыл бұрын

Also the acceleration of a turbo RX-7 is weirdly smooth, like the hand of god pulling you by a rope.

@samuraifugitivo 5 жыл бұрын

alphawav3 You miss some other advantages, because is very small and light, because its very simple.

@MT-dy5ps 4 жыл бұрын

Best explanation ever, man. Great job, and thank u.

@matttownsend7119 2 жыл бұрын

I drove a mark 1 RX-7 for a long time, great fun. My understanding is that the poor similar efficiency arises from the shape of the combustion chamber which is long and narrow such that the surface area of the combustion chamber is much higher than that for cylinder engines, and so a higher proportion of combustion energy leaks away into the coolant.

@markschippel7974 8 жыл бұрын

Apparently the rotary engine is only mostly dead. A new company has picked it up and has changed the shapes of the piston (?) and chamber. The chamber is now triangular and the piston is peanut shaped. It is supposed to fix many of the problems you mentioned. The jury is still out but it will be interesting to see if they can fix it.

@tamerursavas3828 7 жыл бұрын

+The real doktorbimmer A E S T E A T I C S C A M S

@Alexandroidd 7 жыл бұрын

By piston I think you mean rotor.

@ajbianchi03 8 жыл бұрын

You must make a good living, you are an engineer I suppose lol... Me too, low level mechanics though. You always seem to have a load of expensive stuff to show us. I'll sub.

@EngineeringExplained 8 жыл бұрын

+Hay_ImKeyser_Söze Appreciate you subscribing! A fellow subscriber lent me the engine for the video.

@mysticwine 3 жыл бұрын

Great presentation

@wheelie63 4 жыл бұрын

this was very enlightening ...thank you !.............wb

@Angel-HC 7 жыл бұрын

A few of my racing buddies are huge rotary heads. Unfortunately it sometimes makes them the most dense people to discuss cars with. They live in this world where the FC RX-7 is one of the ultimate sports cars you can buy. Fanboyism has always eluded me.

@invertedv12powerhouse77 6 жыл бұрын

Angel Christov yeah... Ive loved subaru for a long time but the community seems to throw me off sometimes

@baconspaceman4094 6 жыл бұрын

Angel Christov I fully understand that rotaries suck ass but I think they are cool because I like the high revs and I like the pop ups and I love every minor quirk that those 1.3l engines have. Ofc they suck but that's what makes them beautiful

@suparosc02 6 жыл бұрын

It is if you are drifting, immediately after follows the S13 Silvia

@venusreena2532 6 жыл бұрын

Same with turbo Supra

@zOiNhUh 6 жыл бұрын

Stubborn fanboys are definitely a PITA.

@Richard-ri1mz 5 жыл бұрын

I have to agree with the emission problems. 2005 RX-8 Catalytic converter failed after only 70,000 miles. 85,000 miles the clutch pedal would get stuck, engine kept flooding with fuel, check engine light kept coming on, power steering would jerk randomly. Around 90,000 miles engine started using coolant (dealer couldn't figure it out), weird electrical issues that would cause the engine not to start. 115,000 miles apex seals blew.... Cost so much to fix. Don't get me wrong I loved the car it was very fun to drive but I was so much happier when I finally was able to get rid of it.

@joselitorosario9975 5 жыл бұрын

Mazda rx8 basura ford made it like that blame ford just blame ford

@cat-lw6kq 5 жыл бұрын

My dad had one of the first ones, it died after 60,000 miles. Only 3 moving parts what could go wrong? and popular science magazine was saying what a great invention it was.

@oldrrocr 4 жыл бұрын

should have spent $7,000 to get a good RX7. I've had 4 and almost no maintenance problems. 130,000 miles on my first one and it was still in spec when I sold it.

@TheElyk17 4 жыл бұрын

Thanks buddy very educational. You reminded me of napoleon dynamite.

@alexanderrepollo1024 4 жыл бұрын

I love the way you explain everything from the engineering side!

@MrUltraworld 8 жыл бұрын

I owned a '80GS & a '86 Sport Package. Neither car had reliability problems, they ran great. Big problem? The '86 had 145hp and struggled to get 20mpg. I loved the cars though, had a blast with them.

@MrUltraworld 8 жыл бұрын

The real doktorbimmer My '86 had the same power and weight as a Porsche 944. I bought the RX7 because it was $1500 cheaper, (about $14k) and I preferred the body and interior.

@int0thew1nd 8 жыл бұрын

actually, you're wrong.en.wikipedia.org/wiki/Wankel_engine in fact, uve actually commited a logical fallacy, which i could link to you as well, but... if you dont know what that is, a link wont help.

@markkemmitt8723 8 жыл бұрын

At the very least you get a great looking car with an RX-7 which you could always change the engine. The 944 and the 924 are just ugly POS liked only by the kind of person that would claim a BL Allegro is a classic car.

@jtblue3recon 8 жыл бұрын

NSU Ro80 had the Wankel back in Germany. And because of it,NSU went down under recalls when they had to replace all of them with Ford V-4"s. When drivers pass each other,they would hold up their hands and indicate by their fingers how many times NSU replace their Wankels.

@jtblue3recon 8 жыл бұрын

It was pretty sad because NUS really had a car that was a bit ahead of the rest in Germany on style and front drive tech. I drove a few when I was stationed in the "Der West BundeutschRepublic",just too bad they went with that anchor.