My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Friend of mine had an older RX-7 and as his apex seals cracked, he opened up the engine and replaced them with good old leather strips and never had any problems with the seals again. Even oil burn has been reduced!
Petrol engine: Retards retards! Diesel engine: Morons morons!! Comments like this: Cringe cringe!!! Everyone on UA-cam: Comments like this!!!! Me: Stop it!! Fucking RETARDS!!!!! You are copying everyone else´s lack of originality.
I just love the look of the RX-7, one of the few modern "rounded" cars that looks good (plus it has pop-up headlights!) but if I ever bought one I'd probably get a less oil burning engine put in. After the original one fails of course, no point in removing a perfectly good engine!
RedilRed isn't it ? My father had one, white like Ryosuke Takahashi, when i got my license he gave the car, and boi, the process just to turn on the car. Tgere goes the 800 bucks in oil
RedilRed ...and lots of bad miles per gallons. ...and lots of bad miles per gallon of oil ...and lots of failed apex seal per mile ...and lots of engine rebuilds per miles.
i love that you explain it so good : you just need to look after the oil. use the right oil and the right amount of it - you will have alovely litle happy rotary engine for long time.
@@sandervanderkammen9230and i see you have no idea . Mazda gave never up. They make new patent every year for rotary engines. The EU killed it with stupid emission laws pending on rpm tests.
@@SiWo7 Not true, Mazda's board voted in May 2009 to cancel all development of Wankel engines. No new Wankel engine prototypes have been seen from Mazda since 2008. That is a popular myth but one that quickly collapses with the slightest amount of factual evidence. The Mazda RX8 met or exceeded the strictest emissions regulations in the world, California's CARB standards right up until Mazda ceased production in 2012 due to poor sales. Please get your facts straight.
Only disadvantage of the APEX seals: They not easily replaceable. If they had designed the engine so they were easy serviceable the whole thing wouldn't be a problem. Mazda Rotary division: "Our cars have the worst emissions!" Volkswagen Diesel division: "Hold my beer!"
Crazy_Borg rotaries are actually really simple to work on. They're much easier than most engines, they just have this stigma around them because most mechanics have no clue how to work with them. Usually only rotary owners know how to work with 'em. If you meet a regular mechanic that knows how to work on them, I can guarantee you that they owned a rotary in their life for long enough to need to replace some stuff
My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Faheem Jamaloodeen I know a guy with a story almost identical, but it was an FD (which already came with a turbo from the factory), he raced a Mustang, and the rotor is sitting on his desk at his restoration garages stead of his house
Another advantage of rotaries: power density. Rotaries make a lot of power for their size. Another disadvantage: Because they rev higher, they don't make a lot of torque compared to piston engines.
Jay Vette Fun fact, the Rotary has a true displacement of 3.9L. It makes just as much horsepower as a 2006-2012 Chevrolet Impala equipped with the 3900 V6, which is not impressive at all.
+Jay Vette *Actually when calculating their true displacement the Wankel engine had rather poor horsepower-per-liter output. In terms of **_density_** or power-to-weight ratios? the gas turbine is easily puts the Wankel to shame.* *The Wankel was plagued by very poor torque characteristics due to the inherently poor mechanical conversion rate, they are simply very inefficient in converting the heat and pressure of combustion into usable torque.*
*Displacement to horsepower ratio on the Wankel was not bad when it was introduced in the 1960's but by turn of the century they could no longer compete with piston engines.*
One works and the other doesn't, anti-matter is just matter with inverted charges, the only special thing about is that it converts itself and matter into pure gamma-rays if it comes into contact with matter. If you somehow were to be able to get a really fast spinning black hole than (theoretically) close to its singularity space-time would bend so much you'd get a closed time-like curve and do things like travel back in time or defy space as we know it.
a few things wrong with this: 1: Rotary engines are very easy to maintain, there is absolutely nothing hard about it at all unless being consistent with standard basic maintenance and adding a bit of oil to your fuel is somehow hard for you then that's on you. 2: The only unreliable thing about a rotary engine is the owner, if the engine fails on you 9.9/10 times it's something that you did (or didn't do) and not the engine's fault. Or may even have been built poorly and/or incorrectly (it happens just like it does with piston engines too). Rotaries do hate boost though, so I won't fault anyone for that (wanna be fast? it won't be reliable. Wanna be reliable? it won't be fast - can be kinda quick though lol). Also something to note is that the old (pre-1986) carbureted rotaries were very reliable, there are still plenty of them running today with up to 400,000 original miles on them. The 13B in my daily driver SA22C is over 40 years old, street ported, makes fairy decent power and torque and came from a junkyard as is and I've put over 20,000 miles on it with no engine related problems at all in the last year that I've owned it (actual car or engine mileage is unknown, ODO is only 5 digits and engine was built in the early 80s and that's all I know). My last RX-7 also had over 261,000 miles on it when it was totaled in an accident and ran great too, so this "unreliable" stigma that rotaries have isn't very well deserved, it's more that it's just not for everyone 3: You can use rotaries in many different applications including aircraft, boating, sandrails hell even RC cars too (and yes there are RC cars with Wankel rotary engines small enough to fit in the palm of your hand and make about 1ish HP lol) Basically what I'm saying is that rotaries are awesome wonderful little engines that deserve more credit that many people aren't very willing to give them. they're simple, easy to maintain, easy to understand and are just plain fun because you can beat the dogshit out of them as much as you want whenever you please (granted that your engine is at operating temp of course). But as I've stated, they're just not for everyone just like pistons aren't for me and that's okay:)
Nate Rist My Dad owns an ‘83 FB and he street-ported the stock 12a and it has been very reliable for over 200,000km. Up until this past summer where he drove the snot out of it, hitting 9000rpm give or take, which then he presumed blew one of the seals. The car still runs though, but with a rough, more piston like idil.
*What about the NHTSA investigation? I found that this false myth is not true... the investigation found NO LINK between owner abuse or neglect and the high number of RX engine failures Mazda DID NOT CHALLENGE these findings and voluntarily offered a settlement.*
It was also the slowest and most uncompetitive car in it's class, losing 20 out of the 21 races it had entered in. It's only race it had ever won was caused by pure luck, when all of it's competitors wiped out and retired. The 787B couldn't even post a pole position lap.
I still like rotaries regardless of the disadvantages of them. Also, I heard the rotary is making a comeback but as a range extender. I have no idea how that would work, but I'm curious.
Ghost Assassin That's just a hoax. The CEO of mazda clearly said earlier this year that Rotary engines or a larger sports car, like the RX-8 isn't coming back.
Only rational reason I can think of for that decision would be because they're smaller/lighter than conventional engines, so they wouldn't affect vehicle weight (and consequently, efficiency) too much
Thank you for this. I have worked on a number of engines, and the cylinder heads have always been concave, not convex as in your diagram. Being concave causes fuel ignition to be 'cupped' leading to a more efficient use of the power stroke. Also may I add, rotary engines have poor breaking performance compared to cylinder engines, requiring a different style to driving.
*_"In 2003, the Securities and Exchange Commission sued Moller for civil fraud (Securities And Exchange Commission v. Moller International, Inc., and Paul S. Moller, Defendants) in connection with value of shares after the initial public offering of stock, and for making unsubstantiated claims about the performance."_* *Freedom-Motors is a subsidiary of the notorious vaporware scam company known as Moller International owned and operated by notorious investment con-artist Paul Moller.*
*_"Moller's credibility has been questioned in recent years because of the vaporware nature of his creations. In April 2009, the National Post characterized the Moller M400 Skycar as a 'failure', and described the Moller company as "no longer believable enough to gain investors"."_*
Thank you for the video, Im studying what I think I should know about basic engine components, functions, flaws and differences and because of your knowledge on both rotary and piston driven engines, I now know basic understanding of how they work as well as basic flaws due to certain situational awareness. Thank you for the video again and please if you have the knowledge to do so, can you make a video on jet engines? Or difference between a jet engine and a car engine. That is actually how I found this video. Thanks.
In 1977 My first car was a Mazda R 100. I was warned that they blew up and it did. The seals on the water jacket went, similar to a blown head gasket. My dad took me down to Mazda, we got a rebuild kit, and the best engine manual I’ve ever seen. Step-by-step instructions with pictures. from disconnecting the battery removal disassembly reassembly and reinstall. The overheating Warped the aluminum rotor housings. They were very expensive so my dad had me hand lap them on a lapping table. Getting them down to the 3000’s tolerance they needed. I assembled the motor. My dad tried turning the motor over by hand before we put the motor back in the car. The motor wouldn’t turn, he determined that we had lapped the rotor housings down but not the apex seals. He machined them down, and I reassembled it put the motor in and it ran beautifully. The Wankel engine is a very simple design with few moving parts which is great. I sold the car almost immediately so I could buy the car I really wanted which was a 1968 Plymouth Road Runner four speed with a Posi rear end. The Wankle engine is revolutionary, but you just can’t beat the awesome sound of Detroit iron. It was all a great learning experience though. I was really blessed to have such a smart dad willing to help me. I still have a black-and-white photo of me holding one of the rotors. Over the years I had three Road runners. I still have my 73 barracuda 340 with a pistol grip four speed which I bought in 1975. Sorry Mr. Wankel but Chrysler really is the king of cool.
@@erniebrinkrotaryhemi7336 THE REAL DOKOTERBIMMER ROTARY* WHO IS IN LOVE WITH HE,S FEELINGS The real doktorbimmer Daddy, I call them rotary just to piss you off, it obviously works. I already gave you a link to the Mazda's official website, where they call it rotary. You still did not learn that both names are correct and you know that by rotary I don't mean radial piston engine. It's pretty common. So stop being overly correct and pull the stick out of your ass. HE IS JUST STUPID *Funny, I watched a video or a rotary engine, called "Rotary engine", with 4 rotating rotors in rotor housings. You must be the only person that calls a rotor "Wankel orbiting piston*". Pioneer KURO plasma displays are still without a doubt the best TVs in the world. I wonder why they stopped making them 5 years ago. Hell, all plasma displays are better than LCD. Do they still make them? No. CRT displays are better than LCDs too. They do not make them anymore... Big displacement engines are better for cars. Again, no production of big engines (4 or 5 liter) for common cars in Europe. Skoda is the most popular car in some countries, while it's more than obvious that they are complete crap in every sense. Maybe it's time for you to understand that better things are not always more popular and are often replaced by worse things. Because people purposely want to have worse things...strange, I know. Can't wait to see you on "RX9" videos, if they decide to use Wankel engine. See what I did there? I called it a Wankel so you don't have to desperately cry and cut your forearms with a razor anymore. Is the purpose of your life to fill every comment section of rotary engine videos? I can't wait to see another reply not answering this question, but it will contain words "Wankel KKM", "Otto" and "obsolete
The Wankel engine and the response to it just shows how ignorant and suborn people can be. The rotary engine seems by far to be the best technology for internal combustion engines. But before it could ever be perfected the general public all agreed to go back to the old style piston engine. Had the population not rejected it cars could have better and more efficient engines that were simpler and eventually when the bugs were out of it would have been the superior engine.
as Ernie Brink said, by changing sparkplug hole geometry by a very thin flat hole (height of the hole will have the same thickness as apex seal) , but too narrow hole could diminish the effectiveness of the spark,I think we can go bigger in the height of the hole without really having consequant gas exchange between compression chamber and exhaust chamber. Other ideas from Ernie Brink are very interesting and pertinant and there are still more possibility to improve the rotary engine
another few differences between piston and rotary motors are that rotary motors are unable to be carbureted and supercharged, but could possibly fit a direct injection system or be turbocharged
*Most Wankel engines were carbureted.. Mercedes-Benz tried unsuccessfully to develop a viable GDI Wankel engine but the Wankel engine simply cannot achieve the required static compression ratios. The Wankel is very poorly suited to both supercharging and turbocharging due to its inherently weak sealing system and terrible combustion efficiency.*
*Today is June 22nd, the 7th anniversary of the last Wankel engine ever commercially manufactured. Mazda's Ujina#2 RX assembly plant shut down at the end of its mid day shift and closed for very the last time in 2012.. a few months later the line was demolished to make way for Mazda's successful new Skyactiv-G reciprocating engines.*
@@nodeUser Actually they're quite simple and reliable but the problem is that jet engines have a throttle lever and not a gearbox, boring sound, being only applicable with diesel or Jet-A, and perform inefficiently at low speeds.
Here we see a video clearly where we do analyze in depth and in depth, we can see that from the different points of discrepancy and comparison. To the best of my knowledge, after several scientific studies through some Google research and many more world-renowned libraries we can conclude that this comment is pointless, and I am particularly happy that someone has read to the end even knowing that it was related to nothing at all, and for the moment I can only thank you for your attention. Thank you!
How many cars really use a V4? I can't think of a single one. I know motorbikes sometimes do. While we're covering different piston layouts, don't forget about the boxer!
Also, mazda is actually engineering a new concept for wankel motor that makes them a heck more efficient. I dunno bout the reliabilty, but they will probably also work on that
Calvin Pessl They're supposedly using it as a range extender for an EV. Has to be exceedingly efficient if they're taking it over a small piston engine like GM and BMW do.
*Today marks the 7th anniversary of the end of Mazda RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.*
The only advantage that the rotary engine has is that you can add "banks" (more rotors) to increase displacement without taking up much space. Thus a "4 cylinder" equivalent can become a "6 cylinder" by adding a single rotor to the mix.
I told myself I would never let having kids change me. It did. Every time I saw the rotary engine model spinning, baby shark played in my head. Doo, doo, doo, doo, doo, doooo.
Rotary Fun Facts: A 350cc Wankel engine was used in the prototype Mazda2 EV as a REx. The engine is almost inaudible. In some Mercedes and Volkswagen cars, the seatbelt pretensioners activate by sending some gas to little Wankels that eventually start and pull the seatbelt. I never knew that!
My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Faheem Jamaloodeen jesuuuuuuus! Im just tryna get my stock motor running right. I had it for this summer but then it lost power in 4th gear, I'm currently trying to diagnose, i just got spark plugs to replace.
theoretically yes, you could put the carbon and the hydrogen back together to make oil. But it is really hard to do even in a lab not to metion in a car.
TheBlibitty Blab a small turbo works for low revvs, however a rotary works from 3k to 10k revvs so it is impossible to have a single working turbo on it, and even if you manage that (variable turbo's do exist) is has to cope with insane temperatures, which makes the turbo insanely expensive...
Chuckiele 8 months ago The rotary has the same benefits as a two stroke piston engine: With less space and less moving parts they can achieve more rpm and more power, but they suffer from the same weaknesses aswell: Bad fuel economy and horrible emissions because of a lot of unburnt fuel and actively burnt oil, but they could also be fixed in the same way by simply applying todays technologies to these old engine designs: Boost, direct injection and maybe even HCCI. Sadly the two stroke didnt survive until those became popular but we kinda see the idea when looking at the two stroke diesel engines that dont burn oil and achieve selfignition while keeping the advantages of the classic two stroke. Maybe we will see something similar in a rotary someday but its a very tough nut to crack. 1 doktorbimmer doktorbimmer 8 months ago +Chuckiele All Wankel KKM designs use the 4-stroke operating principle, 2-stroke Benz-cycle engine have fewer parts, and can actually rev higher. The 2-stroke reciprocating concept is vastly superior in all aspects to the Wankel and is still in mass production while the Wankel has become obsolete. doktorbimmer doktorbimmer 8 months ago +Chuckiele Not true, The Wankel engines inherently weak sealing system and poor combustion efficiency make it poorly suited to high manifold pressure forced induction. GDI was already tried back in the 1960's but the Wankel simply cannot support the high static compression ratios required to achieve significant performance gains with direct-injection stratified combustion. HCCI??? How? Its not possible to adapt VCR, VVL or VVT to the Wankel... its limited to port induction and exhaust and does not generate high enough static compression. The Wankel is obsolete... for some very good reasons... it is an inferior design that no longer offers any further development potential. RIP 1964 - 2012 Chuckiele Chuckiele 8 months ago I wasnt talking to you and I dont intend to. I cant take people serious that search for videos about the wankel all day long to tell the people in the comments that it sucks. If you dont like it, you dont have to drive it, but leave interested people alone and stop spreading your bullshit. 1 doktorbimmer doktorbimmer 8 months ago (edited) +Chuckiele Well, you must have clicked the wrong tab because you posted your erroneous, highly speculative fantasy theories for the whole world to see, I responded to everyone and my message was intended as a direct rebuttal of the completely false statements you posted for everyone to see. Next time if you want keep your remarks private (and not embarrass yourself again) remember to reply by private message instead, good day to you sir. Chuckiele Chuckiele 8 months ago How the fuck was there anything wrong? Being obsolute is nothing but your opinion and isnt based on any facts. In fact you are the one speculating that it wont ever be used again and future will tell. doktorbimmer doktorbimmer 8 months ago +Chuckiele Your entire comment was filled with nothing but errors, false myths, unsupported speculations. Please, stop living in a state of denial... the Wankel design has been obsolete for several years with absolutely no evidence that it can or will ever make a comeback... it is simply an inferior design concept. doktorbimmer doktorbimmer 8 months ago +Chuckiele Please name the one key technical feature that effects combustion efficiency that all modern automobile engines have that is not possible to have in a Wankel engine? Chuckiele Chuckiele 8 months ago Youre the one living in a state of denial, im living in a state of hope, you should try that too, might make you able to get rid of some of your negativity, because even if there is absolutely no evidence of something to happen, why would you remind yourself of that over and over again if you could just be positive and wait instead? Anyway, if by that technical feature youre refering to any sort of valve control like you mentioned above, I dont see a reason to implement them into an engine that doesnt even need valves, you can control injection and you can control ignition, what do you want more? 1 doktorbimmer doktorbimmer 8 months ago +Chuckiele Engineering is not a "faith based" endeavor son, it is a science that must comply with the laws of mechanics, and the laws of thermal and fluid dynamics. Mazda manufactured the Wankel KKM longer than any other company and they have not released a new production Wankel engine in 23 YEARS! So I sincerely suggest if your hoping for the Wankel to comeback? That you don't hold your breath! doktorbimmer doktorbimmer 8 months ago +Chuckiele "technical feature that effects combustion efficiency" NO, its not. Indeed, while one of the Wankel KKM's flaws is being limited to port induction and exhaust that is not what I was referring to. doktorbimmer doktorbimmer 8 months ago +Chuckiele "I dont see a reason to implement them into an engine that doesnt even need valves," WELL THEN, How do you expect to implement HCCI technology????? Magic? or Hope Chuckiele Chuckiele 8 months ago (edited) All science is based on faith, you may not accept that but there are no true laws in science, they are just valid until they are proven wrong, and they eventually will and so will you. HCCI isnt even properly utilized with valve control yet, so how would you know that it cant be achieved without? 1 doktorbimmer doktorbimmer 8 months ago
piston engine: depending on the driver and some oil change all 15k miles, runs without problems 400k+ miles... rotary engine: depending on the driver runs around 15k-20k miles, then cracks and u need a new engine, no oil change cause its included in the engine change... pay 6k+usd and run for another 15k to 20k miles... you thought a bugatti is the car to show u have money? youre mistaken, its a RX8 with around 200k miles on the clock :D
No, piston engines still require much more frequent oil changes than 15k, especially to get 400k no matter what your friends told you. Also, rotaries have the sohn adapter to achieve parallel oil changing requirements to that of standard piston engines. Amazing what dedicated two stroke injection can do huh, and wait till you see how long one lasts.
@@ALmaN11223344 youre mistaken, i had my first car (honda civic vtec) for 15 years (piston) and oilchange around every 20k to 22k ... 562k on the clock when a suv crashed into it in a parkinglot. never had any problems, maybe if you turn on yer car and speed up to 200+ and turn it off, directly after speeding, maybe then u need to get those changes more often, but my rex 8 needed his expensive change nearly all 12k to 15k
@@incardia You've got a weird definition of "needing an oil change" then, if it has particulates and isn't retaining the color of what you're putting in the filter and the oil both NEED the change. 22k without a change and 560k on the same cars odometer are an exception, not the rule. Good oil change practices dictate 5-6k at most, and regardless of how your anecdotes suggest otherwise you've only really provided that story. forum.bodybuilding.com/showthread.php?t=169746333&page=1 here's a forum full of people who disagree, especially since we're talking sports cars that regularly hit higher RPMs than the 560k foagmobile.
I saw a bunch of second hand Mazda RX-8 selling for cheap prices on a website. And all of them have their engines swapped for a piston engine like a 2jz. That's how much bad the rotary engine is.
Fuel consumption was also better than a comparable two stroke engine, but not as good as a conventional four stroke. This eventually became the downfall of the Wankel design
Owned Mazda RX8 for a 1.5 years. Sold it but want to get another one. Very beauriful and powerfull car. Of course 23 liters per 100km fuel consumption and 100-150k km life length is quite sad news, but despite that the emotions that this car gave me worth that. And if course EXHAUST SOUND "WEW WEW" and shooting fires :)
I'm afraid rotary will be dead soon just about every car mfg is working on EVs and a electric motor will embarrass just about any kind of gas engine in responsiveness and torque.
*coughs* Tesla Model S *coughs* But srsly, tho I see what you mean. As I said at the start of the comment, I believe that cars like the Tesla Model S are just going to eventually wipe out the 'gas' era, as it were.
BoyofCreation funny you say that, as a couple weeks ago Elon Musk said that he thinks "the future of the automobile is in gas powered engines" and is now working on designing a combustion based Tesla
Offset compression is fine, but he didn't offer a solution for the plug-leak issue. However, just as I'm writing this I had the idea, that one could put the spark plugs into the rotor... one per side... Would need to be special plugs and properly ballanced, but it should work... What would also work is to have the spark plugs come in from the flat side of the engine, slightly recessed, so that the rotor would pass over them.
Summary Piston = reliable Rotor = empty pit for a brap noise With recent technology and innovation the claim of ''but the rotary revs to 9-11k'' (outdated comparison) pistons can do that as well - with more torque/hp reliably
Jaime Morales I have an RX8 and that thing is a freaking blast to drive. It’s literally hard not to smile when driving.... but it’s not very reliable and has bad fuel economy witch is the two major downsides. So If you wanna get a RX8 then go ahead!
which do u prefer, rotary or piston? i am having a hard time choosing between leaving my suv (tucson 2010) change to hatchback (mazda 3 2010 / up). my dad wont let me have mazda 3 because its rotary he said.
The idea behind rotary being unreliable is spread by jackasses who don't know how to treat it. They do require more care on a day to day, but can be extremely reliable. Letting it warm up, not cranking and instantly killing it, premixing if you're extremely anal. Otherwise check your oil. They are also capable of generating massive power in a smaller package. And they are simple to work on. It's like anything that isn't a 2j. Treat it like shit and it will be shit. 2j engines, Chevy smallblocks, and the rb26 can be treated bad. They like abuse and keep going with it. Had an fc I used to beat the shit out of on the road, but upgraded mixing valves, and proper operational rituals helped me get about 200,000 out of the engine before swapping in a lovely 20b
Etherion I didn't say anything on consumption. These cars were not made for economy cars. We are speaking on reliability. Based on your post, that group of people shouldn't own a rotary. That's like buying a foxbody gt then crying "only 12 miles per gallon!" Consumption isn't a factor on reliability of rotary. Buying 1 you should know the basic information. The Rx8 for example is the most practical of the rx series. However it still consumes a lot. Now if we talk about a idk a Chevy cobalt, and it consumes a lot of oil, then there is a problem. We are speaking towards reliability. And a rotary is extremely reliable when treated well.
My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Faheem Jamaloodeen 2 MUCH POWAAA
Sounds like a good turbo
Yeah because shittyass imports need all the help they could possibly get to barely get up to an American-built car’s level
The devil's nail marks!!!!
xD
The main benefit of a rotary: what is a redline? never heard of it
See the rpm gauge in a car, see the numbers that are red? When your engine is going that fast it’s redline
@@nitrogas5719 you missed the joke lmao
Baba_StinkyKebab the comment got edited lol, it didn’t have the main benefit of a rotary, or maybe I was just not thinking right lol
@@nitrogas5719 damn the OC did you dirty lmao
João Richter lol
I am a redstone master! I already know everything about a piston!
Kratoskiller231 I got to take red stone classes
Oh, then you can explain why my redstone torch is not working, it does not bring any light to my house.
ERNIE BRINK ROTARY You replied every comment on this?
Well, build a computer in Minecraft.
Then why did you watch this
"Suck, Squeeze, Bang, and Blow" ...
The mechanics of pleasure .
its a cosmic language .
haha what an Epic comment :D
me and my uncle, that what it sounds like
But not always in that order.
Friend of mine had an older RX-7 and as his apex seals cracked, he opened up the engine and replaced them with good old leather strips and never had any problems with the seals again. Even oil burn has been reduced!
Late reply but please tell me you aren’t joking, this would be very useful information to create reliable aftermarket apex seals for Rotary engines!
@@standardheat-fs8159 mate ur 4 years late😂😂😂😂
wtf
dude that's hilarious
Piston gas engine: vroom vroom
Piston diesel engine: ckakakakakaka
Rotary engine: BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP BRAP
Electric engine : vvvviiiiii
Electric engine :
Petrol engine: Retards retards!
Diesel engine: Morons morons!!
Comments like this: Cringe cringe!!!
Everyone on UA-cam: Comments like this!!!!
Me: Stop it!! Fucking RETARDS!!!!!
You are copying everyone else´s lack of originality.
ERNIE BRINK ROTARY did the car noises piss this man off cause I’m sure he’s in the Wrong place if he thinks cars sound gay that’s just a big no no
Eminem: chika chika chika chika
I just love the look of the RX-7, one of the few modern "rounded" cars that looks good (plus it has pop-up headlights!) but if I ever bought one I'd probably get a less oil burning engine put in. After the original one fails of course, no point in removing a perfectly good engine!
I love my RX7 FC, many smiles per gallon.
RedilRed isn't it ? My father had one, white like Ryosuke Takahashi, when i got my license he gave the car, and boi, the process just to turn on the car. Tgere goes the 800 bucks in oil
RedilRed
...and lots of bad miles per gallons.
...and lots of bad miles per gallon of oil
...and lots of failed apex seal per mile
...and lots of engine rebuilds per miles.
Use Trollgun 01 honestly if you take care of it's not too bad. But definitely not up to modern efficiency.
Use Trollgun 01 You're clueless
RedilRed Part of me wants you to keep it forever, The other part wants you to sell it to me haha
2:22 How I like to spend a Friday night...
ERNIE BRINK ...what?
I don't suck nor blow... only squeeze and bang...
[[[ DRAGONIER ]]] I could't stay serious *sexy grin activated* 😏
newton law of motion a combustion chamber that,s always in motion wankel engines will spin on never run away from a problem?
Lol
One is a Dorito an the other one is a coke can.
byGiNeSiToX Bananas good enough
That's.... A pretty accurate explanation
byGiNeSiToX Bananas no, it's a Mtn Dew can
Doritos are better than Pringles
byGiNeSiToX Bananas LMAO you’re the new KAL 1 - I see you on every Adam LZ video, and now here.
i love that you explain it so good : you just need to look after the oil. use the right oil and the right amount of it - you will have alovely litle happy rotary engine for long time.
Wankel engines are inherently unreliable..
Even Mazda gave up on trying to make them reliable.
@@sandervanderkammen9230and i see you have no idea . Mazda gave never up. They make new patent every year for rotary engines. The EU killed it with stupid emission laws pending on rpm tests.
@@SiWo7 Not true, Mazda's board voted in May 2009 to cancel all development of Wankel engines.
No new Wankel engine prototypes have been seen from Mazda since 2008.
That is a popular myth but one that quickly collapses with the slightest amount of factual evidence.
The Mazda RX8 met or exceeded the strictest emissions regulations in the world, California's CARB standards right up until Mazda ceased production in 2012 due to poor sales.
Please get your facts straight.
Hopefully Mazda can find a way to fix the rotary engine flaws for their rx-9.
*Wankel engines are obsolete now. The RX-9 does not exist, Mazda's CEO confirmed the RX-9 was nothing but internet hoax.*
Do you have any proof that he said this at all?
Yeah its not happening sadly
We don't need a new rotary... the idea of a low emissions, hybrid prius rotary thing sounds appalling.
@@erniebrinkrotaryhemi7336 he's a doctor. Don't question his knowledge! Lmao
Only disadvantage of the APEX seals: They not easily replaceable.
If they had designed the engine so they were easy serviceable the whole thing wouldn't be a problem.
Mazda Rotary division: "Our cars have the worst emissions!"
Volkswagen Diesel division: "Hold my beer!"
Crazy_Borg rotaries are actually really simple to work on. They're much easier than most engines, they just have this stigma around them because most mechanics have no clue how to work with them. Usually only rotary owners know how to work with 'em. If you meet a regular mechanic that knows how to work on them, I can guarantee you that they owned a rotary in their life for long enough to need to replace some stuff
Harley-Davidson "Hold my bong"
My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Poor gas mileage is not a disadvantage?
Faheem Jamaloodeen I know a guy with a story almost identical, but it was an FD (which already came with a turbo from the factory), he raced a Mustang, and the rotor is sitting on his desk at his restoration garages stead of his house
Another advantage of rotaries: power density. Rotaries make a lot of power for their size. Another disadvantage: Because they rev higher, they don't make a lot of torque compared to piston engines.
Jay Vette
Fun fact, the Rotary has a true displacement of 3.9L. It makes just as much horsepower as a 2006-2012 Chevrolet Impala equipped with the 3900 V6, which is not impressive at all.
Use Trollgun 01 Itsthe true size but compared to that engine they dont weigh the same Rotary have better horsepower to weight ratios
Jay Vette hmmmm, maybe its time to get a diesel-meth r8 cobbled together
+Jay Vette *Actually when calculating their true displacement the Wankel engine had rather poor horsepower-per-liter output. In terms of **_density_** or power-to-weight ratios? the gas turbine is easily puts the Wankel to shame.*
*The Wankel was plagued by very poor torque characteristics due to the inherently poor mechanical conversion rate, they are simply very inefficient in converting the heat and pressure of combustion into usable torque.*
+cloridan Beauchamps *Fun fact; **_You are an imbecile that doesn't understand how engine displacement is calculated..._*
3:47 heart beat of a car 😂😂😂😂
Had me dead
Thanks! Im just getting into cars and this really helped me understand how they actually work mechanicaly
i wish you would've mentioned more pros of rotaries like their displacement to power, and such! great video, i enjoyed it.
*Wankel engine no longer offered any advantages which is why they are obsolete now.*
*Displacement to horsepower ratio on the Wankel was not bad when it was introduced in the 1960's but by turn of the century they could no longer compete with piston engines.*
Now explain the difference between an antimatter warp drive vs a singularity based warp drive
XD
One works and the other doesn't, anti-matter is just matter with inverted charges, the only special thing about is that it converts itself and matter into pure gamma-rays if it comes into contact with matter.
If you somehow were to be able to get a really fast spinning black hole than (theoretically) close to its singularity space-time would bend so much you'd get a closed time-like curve and do things like travel back in time or defy space as we know it.
Difference is they spell different. There you have it.
4:43 The moment the headlight rose, so pleasing.
When your car opens it's eyes and greets you "Hey babe"
a few things wrong with this:
1: Rotary engines are very easy to maintain, there is absolutely nothing hard about it at all unless being consistent with standard basic maintenance and adding a bit of oil to your fuel is somehow hard for you then that's on you.
2: The only unreliable thing about a rotary engine is the owner, if the engine fails on you 9.9/10 times it's something that you did (or didn't do) and not the engine's fault. Or may even have been built poorly and/or incorrectly (it happens just like it does with piston engines too). Rotaries do hate boost though, so I won't fault anyone for that (wanna be fast? it won't be reliable. Wanna be reliable? it won't be fast - can be kinda quick though lol). Also something to note is that the old (pre-1986) carbureted rotaries were very reliable, there are still plenty of them running today with up to 400,000 original miles on them. The 13B in my daily driver SA22C is over 40 years old, street ported, makes fairy decent power and torque and came from a junkyard as is and I've put over 20,000 miles on it with no engine related problems at all in the last year that I've owned it (actual car or engine mileage is unknown, ODO is only 5 digits and engine was built in the early 80s and that's all I know). My last RX-7 also had over 261,000 miles on it when it was totaled in an accident and ran great too, so this "unreliable" stigma that rotaries have isn't very well deserved, it's more that it's just not for everyone
3: You can use rotaries in many different applications including aircraft, boating, sandrails hell even RC cars too (and yes there are RC cars with Wankel rotary engines small enough to fit in the palm of your hand and make about 1ish HP lol)
Basically what I'm saying is that rotaries are awesome wonderful little engines that deserve more credit that many people aren't very willing to give them. they're simple, easy to maintain, easy to understand and are just plain fun because you can beat the dogshit out of them as much as you want whenever you please (granted that your engine is at operating temp of course). But as I've stated, they're just not for everyone just like pistons aren't for me and that's okay:)
Nate Rist Thank you
Nate Rist My Dad owns an ‘83 FB and he street-ported the stock 12a and it has been very reliable for over 200,000km. Up until this past summer where he drove the snot out of it, hitting 9000rpm give or take, which then he presumed blew one of the seals. The car still runs though, but with a rough, more piston like idil.
*What about the NHTSA investigation? I found that this false myth is not true... the investigation found NO LINK between owner abuse or neglect and the high number of RX engine failures Mazda DID NOT CHALLENGE these findings and voluntarily offered a settlement.*
*Then Why do engines that are premixed STILL FAIL???? Why did you replace your engine????*
+Blak Nyte *You don't know????*
piston engines are evolutionary but the wankel engine is revolutionary
lol
Very true
All the piston engines believe rotaries need to learn, rotaries don't need to learn, they come to a track and improve it, *THEY ARE REVOLUTIONARY*
@@aestheticcruise8807 They're not "revolutionary" if anything they're an evolutionary dead end.
The most underrated comment on UA-cam
Mazda 787B - 4 Rotor engine. Best sounding car ever 😍😍
It rapes your ears the good way
its a fucking beast
It was also the slowest and most uncompetitive car in it's class, losing 20 out of the 21 races it had entered in. It's only race it had ever won was caused by pure luck, when all of it's competitors wiped out and retired. The 787B couldn't even post a pole position lap.
Use Trollgun 01 but it sounds good so
Use Trollgun 01 who cares. It looks amazing and the sound = eargasm
I still like rotaries regardless of the disadvantages of them. Also, I heard the rotary is making a comeback but as a range extender. I have no idea how that would work, but I'm curious.
easy. As a normal engine, but it don't go to a gearbox then wheel but to a electric motor. But in that configuration, it's a generator.
Ghost Assassin
That's just a hoax. The CEO of mazda clearly said earlier this year that Rotary engines or a larger sports car, like the RX-8 isn't coming back.
I love them too, but I would hate to own one lol.
Use Trollgun 01 according to every news outlet I’ve seen, a range extender is exactly what they are going to do with the rotary. Which is a damn shame
Only rational reason I can think of for that decision would be because they're smaller/lighter than conventional engines, so they wouldn't affect vehicle weight (and consequently, efficiency) too much
Thank you for this. I have worked on a number of engines, and the cylinder heads have always been concave, not convex as in your diagram. Being concave causes fuel ignition to be 'cupped' leading to a more efficient use of the power stroke.
Also may I add, rotary engines have poor breaking performance compared to cylinder engines, requiring a different style to driving.
*One goes Vroom..*
*Other goes: BRAP BRAP* *BRAP BRAP*
Doug DeMuro’s Unloved Autotrader Column THERE'S NO MORE SATISFACTION WITH RACING WITH THE BRAAAAAAAPPP UMMMMMMMMM,,,🔥 🔥 🔥...
Skidi ba bap bap and a boom boom burum boom !!! Skiyaaa !!
Actually rotary's go Vroooommmm to, you know that right..?
They just go brap brap brap for like 30 seconds and done.
*_"In 2003, the Securities and Exchange Commission sued Moller for civil fraud (Securities And Exchange Commission v. Moller International, Inc., and Paul S. Moller, Defendants) in connection with value of shares after the initial public offering of stock, and for making unsubstantiated claims about the performance."_* *Freedom-Motors is a subsidiary of the notorious vaporware scam company known as Moller International owned and operated by notorious investment con-artist Paul Moller.*
*_"Moller's credibility has been questioned in recent years because of the vaporware nature of his creations. In April 2009, the National Post characterized the Moller M400 Skycar as a 'failure', and described the Moller company as "no longer believable enough to gain investors"."_*
BRAP BRAP BRAP BRAP 💞
What?
Can't hear you over the BRAPAPAPAPAPAPAPP
Zane
Buddycorgi you don’t get so stfu
da car go
SKRRRRAA, PA PA KA KA KA,
SKIDIPI PA PA, AND A POOM POOM PRUUUUOOOOM
SKIAAAAAA 😂
4:44 omg that rx7 looks so sexy
its stock rx-7
@@mintchoco4318 ik and everyone know that
"should" *eyes opened*
Sees rotary instantly hits like.
Matthew Salmon why did you put an apostrophe?
lego technic Overcorrection.
Quintinohthree ok
Quintinohthree you can redact it.
lego technic So can you.
CHILLIN LIKE A ANGEL
0:35 JESUS CHRIST could definitely use some more of that in my life
XD
Where's the funny...
Thank you for the video, Im studying what I think I should know about basic engine components, functions, flaws and differences and because of your knowledge on both rotary and piston driven engines, I now know basic understanding of how they work as well as basic flaws due to certain situational awareness. Thank you for the video again and please if you have the knowledge to do so, can you make a video on jet engines? Or difference between a jet engine and a car engine. That is actually how I found this video. Thanks.
3:47 yes lots of moving parts, that looks more like an engine with busted motor mounts.
It's foundations are completely broken and engine is not intact to the body 😂😂
@@muhammadrafay4743 nice one Hahahahhahaha!!!!!!!!
Super informative with no annoying attempts at humor, thank you
For the record, rotary engines have a lot of moving parts too, just most of them are seals. Take a look at what is in a seal kit for a 13b sometime.
Another good thing about conventional engine is that when you need to change spark plugs you can pop the hood open and there they are.
In 1977 My first car was a Mazda R 100. I was warned that they blew up and it did. The seals on the water jacket went, similar to a blown head gasket. My dad took me down to Mazda, we got a rebuild kit, and the best engine manual I’ve ever seen. Step-by-step instructions with pictures. from disconnecting the battery removal disassembly reassembly and reinstall. The overheating Warped the aluminum rotor housings. They were very expensive so my dad had me hand lap them on a lapping table. Getting them down to the 3000’s tolerance they needed. I assembled the motor. My dad tried turning the motor over by hand before we put the motor back in the car. The motor wouldn’t turn, he determined that we had lapped the rotor housings down but not the apex seals. He machined them down, and I reassembled it put the motor in and it ran beautifully. The Wankel engine is a very simple design with few moving parts which is great. I sold the car almost immediately so I could buy the car I really wanted which was a 1968 Plymouth Road Runner four speed with a Posi rear end. The Wankle engine is revolutionary, but you just can’t beat the awesome sound of Detroit iron. It was all a great learning experience though. I was really blessed to have such a smart dad willing to help me. I still have a black-and-white photo of me holding one of the rotors. Over the years I had three Road runners. I still have my 73 barracuda 340 with a pistol grip four speed which I bought in 1975. Sorry Mr. Wankel but Chrysler really is the king of cool.
mrcuda73 Did you need a engine crane to get it out of the car ?
Keith W. I’m sure we used a regular cherry picker
so he said 1.4 to 2 liters now my car has a 1.2 liter engine, is my car retarted?
(update i now own a 1.8, the car aint retarted nomore)
Mine is 1.1
my i4 engine is 2.3 so maybe mine is as well hahaha
My car is inline 3, 1 liter lmao
@@calliris fiesta?
@@ramondijkgraaf3805 yep
Also, pistons produce usually more torque than rotary. But the high rev is much appreciated
The most creative people are motivated by the grandest of problems that are presented before them
@@erniebrinkrotaryhemi7336 THE REAL DOKOTERBIMMER ROTARY* WHO IS IN LOVE WITH HE,S FEELINGS
The real doktorbimmer Daddy, I call them rotary just to piss you off, it obviously works. I already gave you a link to the Mazda's official website, where they call it rotary. You still did not learn that both names are correct and you know that by rotary I don't mean radial piston engine. It's pretty common. So stop being overly correct and pull the stick out of your ass. HE IS JUST STUPID *Funny, I watched a video or a rotary engine, called "Rotary engine", with 4 rotating rotors in rotor housings. You must be the only person that calls a rotor "Wankel orbiting piston*". Pioneer KURO plasma displays are still without a doubt the best TVs in the world. I wonder why they stopped making them 5 years ago. Hell, all plasma displays are better than LCD. Do they still make them? No. CRT displays are better than LCDs too. They do not make them anymore... Big displacement engines are better for cars. Again, no production of big engines (4 or 5 liter) for common cars in Europe. Skoda is the most popular car in some countries, while it's more than obvious that they are complete crap in every sense. Maybe it's time for you to understand that better things are not always more popular and are often replaced by worse things. Because people purposely want to have worse things...strange, I know. Can't wait to see you on "RX9" videos, if they decide to use Wankel engine. See what I did there? I called it a Wankel so you don't have to desperately cry and cut your forearms with a razor anymore. Is the purpose of your life to fill every comment section of rotary engine videos? I can't wait to see another reply not answering this question, but it will contain words "Wankel KKM", "Otto" and "obsolete
@@erniebrinkrotaryhemi7336 ZERO TOLERANCE ON LEAKAGE
@@therealdokoterbimmerrotary6751 a 14mm leading plug hole is the problem meeting a 2mm apex
The Wankel engine and the response to it just shows how ignorant and suborn people can be. The rotary engine seems by far to be the best technology for internal combustion engines. But before it could ever be perfected the general public all agreed to go back to the old style piston engine. Had the population not rejected it cars could have better and more efficient engines that were simpler and eventually when the bugs were out of it would have been the superior engine.
We legit just watched this for my Vehicle Technology BTEC. Cheers for making college even less boring
"Suck, Squeeze, Bang, and Blow" 😂😂😂 My favorite night.
Good one Devyn.
@@TollyKipper God????? Thought u were in heaven
as Ernie Brink said, by changing sparkplug hole geometry by a very thin flat hole (height of the hole will have the same thickness as apex seal) , but too narrow hole could diminish the effectiveness of the spark,I think we can go bigger in the height of the hole without really having consequant gas exchange between compression chamber and exhaust chamber. Other ideas from Ernie Brink are very interesting and pertinant and there are still more possibility to improve the rotary engine
It's easy.... 1 is a Spinning Dorito that eats a lot of oil, the other one is an ice cream that moves up and down
why do people in japan wear masks?:
because there is so much oil burnd in the mazdas
hahaha my sides :) good one
And hondas
Nicknags I don’t get it
Nicknags XDD
oof
another few differences between piston and rotary motors are that rotary motors are unable to be carbureted and supercharged, but could possibly fit a direct injection system or be turbocharged
*Most Wankel engines were carbureted.. Mercedes-Benz tried unsuccessfully to develop a viable GDI Wankel engine but the Wankel engine simply cannot achieve the required static compression ratios. The Wankel is very poorly suited to both supercharging and turbocharging due to its inherently weak sealing system and terrible combustion efficiency.*
*Today is June 22nd, the 7th anniversary of the last Wankel engine ever commercially manufactured. Mazda's Ujina#2 RX assembly plant shut down at the end of its mid day shift and closed for very the last time in 2012.. a few months later the line was demolished to make way for Mazda's successful new Skyactiv-G reciprocating engines.*
9 Years now
I prefer jet engine !
Great video :D beautiful animations, thanks for explaining !
*They still make jet engines... Wankel engines are dead.*
Well, you're going to need a LOT of money and some REALLY good brakes for that.
@@nodeUser Actually they're quite simple and reliable but the problem is that jet engines have a throttle lever and not a gearbox, boring sound, being only applicable with diesel or Jet-A, and perform inefficiently at low speeds.
I would love any engine. I don't want electric to conquer this beauty
We have a dozen million fuels other than gas
Here we see a video clearly where we do analyze in depth and in depth, we can see that from the different points of discrepancy and comparison. To the best of my knowledge, after several scientific studies through some Google research and many more world-renowned libraries we can conclude that this comment is pointless, and I am particularly happy that someone has read to the end even knowing that it was related to nothing at all, and for the moment I can only thank you for your attention.
Thank you!
You had me in the first half not gonna lie
It's amazing how all this happens in a split second like woah!
Please do one comparing the V4 and I4
How many cars really use a V4? I can't think of a single one. I know motorbikes sometimes do. While we're covering different piston layouts, don't forget about the boxer!
I think the Lancia Fulvia used a V4
Thank you sir! 😎 I learned a lot. Surely I could stand in front of my classmates to share.
This was very informative, thank you
rotary engines are reliable, most people just don't know how to take care of them
the best excuse for poor design in mechanical engineering
All you have to do is make sure they have sufficient oil and dont get too hot...
Also, mazda is actually engineering a new concept for wankel motor that makes them a heck more efficient. I dunno bout the reliabilty, but they will probably also work on that
MaroonLynx And pre-mix. If you takd care of them they're as reliable as any performance engine.
Calvin Pessl They're supposedly using it as a range extender for an EV. Has to be exceedingly efficient if they're taking it over a small piston engine like GM and BMW do.
IT IS A MARVELOUS PIECE OF ENGINEERING
THE FOUR STROKES OF A INTERNAL COMBUSTION OCCURS SIMULTANEOUSLY IN A WANKEL ENGINE THIS MAKES IT MORE EFFICIENT THAN A PISTON ENGINE
1:58 Hopefully the gifts i get on Valentine day 2020 !! GIGGITY
I was thinking about this last night, and now it’s in my UA-cam feed.
*Today marks the 7th anniversary of the end of Mazda RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.*
😭😭😭😭😭😭😭😭😭😭😭😭😭
*Wankel engines are obsolete technology now, no longer manufactured any where in the world today...*
The only advantage that the rotary engine has is that you can add "banks" (more rotors) to increase displacement without taking up much space. Thus a "4 cylinder" equivalent can become a "6 cylinder" by adding a single rotor to the mix.
The only time you can say a rude word... ‘Wankel!’
Ben Mayall hows it rude
EnzedDev wank in the UK at least is a rude word
EnzedDev Wank is similar to the word _wang,_ which means a man's genitals.
Xalataf but wank means to toss off
I think these comments are fucked.
Oh shit, now I've done it.
Shit I did it again.
Damn it.
*R.I.P. Wankel engine 1964 -2012*
😔😞😥 Legend Never Dies ✌️
It isnt dead.....the rx9 is being made
@@darragh7853 says who? I hope you don't mean that disappointing hybrid.
Too bad I do😭😭
@@darragh7853 well its 2020 now proving that the RX9 was just another hoax
I like how in during the closing remarks about how rotaries burn oil, it shows a spark plug wire from a piston engine drenched in oil.
I think the spitting flames part is a pro.
5:44 MISFIRING SYSTEMO
Nice emperor reference
Ahahah
*pow pow gets stronger*
God damn it Sudo.
thanks, really informative and cool video!
I told myself I would never let having kids change me. It did. Every time I saw the rotary engine model spinning, baby shark played in my head. Doo, doo, doo, doo, doo, doooo.
WHERE IS THE 4-RO.......
Oh sorry wrong channel.
rob dahm hoping for more rotary videos on other channels so people forget about his LIES!!!
LYx461 I don't see an issue with making the 4 rotor more common ;-)
Almost a year later..... lol
Rotary Fun Facts: A 350cc Wankel engine was used in the prototype Mazda2 EV as a REx. The engine is almost inaudible.
In some Mercedes and Volkswagen cars, the seatbelt pretensioners activate by sending some gas to little Wankels that eventually start and pull the seatbelt. I never knew that!
*Fun Fact; **_Mazda No Longer Sells Wankel Engines._*
MAZDA RX7 all the way!!!
I got an fb with that 12a maaad rotary
My friend owns an RX7 and knows a guy who owned an RX7 FC. The guy ended up getting a turbo for it and cranked the boost up to 24 PSI which was higher than the maximum of 23 PSI. The same guy got into a drag race with a Camaro. The FC smoked the Camaro but at the end of the drag race he heard a shredding sound inside his engine. The car could barely move after that so he ended up taking apart the engine to diagnose the problem. Turns out because he cranked the boost up so high the apex seal was blown right out of its socket as it couldn't handle the pressure. The rotor then dragged the apex seal around the entire housing which shredded the interior completely. He ended up replacing the rotor and still has the one with the shred marks and gashes sitting on his desk at home.
Faheem Jamaloodeen jesuuuuuuus! Im just tryna get my stock motor running right. I had it for this summer but then it lost power in 4th gear, I'm currently trying to diagnose, i just got spark plugs to replace.
Xavier Sosa hey me too. Just got an 85 fb with the 12a as my first car
Anthony Hutchison so dope dude
The fb is so fun to drive especially around corners
I don’t know how this video is nostalgic, but I do remember that I have watched it years ago, possibly right when it released
Is it posible to liquify the burned oil and reuse it?
lego technic probably, but I think it wouldn't be worth the effort.
theoretically yes, you could put the carbon and the hydrogen back together to make oil. But it is really hard to do even in a lab not to metion in a car.
How about if they use a small fast spooling turbo ?
TheBlibitty Blab a small turbo works for low revvs, however a rotary works from 3k to 10k revvs so it is impossible to have a single working turbo on it, and even if you manage that (variable turbo's do exist) is has to cope with insane temperatures, which makes the turbo insanely expensive...
Mark Boersma OOOOOOOOOHHHH now I get it ... thanks
THE FOUR STROKES OF A INTERNAL COMBUSTION OCCURS SIMULTANEOUSLY IN A
WANKEL ENGINE THIS MAKES IT MORE EFFICIENT THAN A PISTON ENGINE
1
Except that it's not.
Your theory fails completely in the face of actual facts.
**IT IS A MARVELOUS PIECE OF ENGINEERING**
@Flyingdutchy33 Have you been to the local Mazda dealer lately??? LOL!!!!!
Chuckiele
8 months ago
The rotary has the same benefits as a two stroke piston engine: With less space and less moving parts they can achieve more rpm and more power, but they suffer from the same weaknesses aswell: Bad fuel economy and horrible emissions because of a lot of unburnt fuel and actively burnt oil, but they could also be fixed in the same way by simply applying todays technologies to these old engine designs: Boost, direct injection and maybe even HCCI. Sadly the two stroke didnt survive until those became popular but we kinda see the idea when looking at the two stroke diesel engines that dont burn oil and achieve selfignition while keeping the advantages of the classic two stroke. Maybe we will see something similar in a rotary someday but its a very tough nut to crack.
1
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele All Wankel KKM designs use the 4-stroke operating principle, 2-stroke Benz-cycle engine have fewer parts, and can actually rev higher. The 2-stroke reciprocating concept is vastly superior in all aspects to the Wankel and is still in mass production while the Wankel has become obsolete.
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele Not true, The Wankel engines inherently weak sealing system and poor combustion efficiency make it poorly suited to high manifold pressure forced induction. GDI was already tried back in the 1960's but the Wankel simply cannot support the high static compression ratios required to achieve significant performance gains with direct-injection stratified combustion. HCCI??? How? Its not possible to adapt VCR, VVL or VVT to the Wankel... its limited to port induction and exhaust and does not generate high enough static compression. The Wankel is obsolete... for some very good reasons... it is an inferior design that no longer offers any further development potential. RIP 1964 - 2012
Chuckiele
Chuckiele
8 months ago
I wasnt talking to you and I dont intend to. I cant take people serious that search for videos about the wankel all day long to tell the people in the comments that it sucks. If you dont like it, you dont have to drive it, but leave interested people alone and stop spreading your bullshit.
1
doktorbimmer
doktorbimmer
8 months ago (edited)
+Chuckiele Well, you must have clicked the wrong tab because you posted your erroneous, highly speculative fantasy theories for the whole world to see, I responded to everyone and my message was intended as a direct rebuttal of the completely false statements you posted for everyone to see. Next time if you want keep your remarks private (and not embarrass yourself again) remember to reply by private message instead, good day to you sir.
Chuckiele
Chuckiele
8 months ago
How the fuck was there anything wrong? Being obsolute is nothing but your opinion and isnt based on any facts. In fact you are the one speculating that it wont ever be used again and future will tell.
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele Your entire comment was filled with nothing but errors, false myths, unsupported speculations. Please, stop living in a state of denial... the Wankel design has been obsolete for several years with absolutely no evidence that it can or will ever make a comeback... it is simply an inferior design concept.
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele Please name the one key technical feature that effects combustion efficiency that all modern automobile engines have that is not possible to have in a Wankel engine?
Chuckiele
Chuckiele
8 months ago
Youre the one living in a state of denial, im living in a state of hope, you should try that too, might make you able to get rid of some of your negativity, because even if there is absolutely no evidence of something to happen, why would you remind yourself of that over and over again if you could just be positive and wait instead? Anyway, if by that technical feature youre refering to any sort of valve control like you mentioned above, I dont see a reason to implement them into an engine that doesnt even need valves, you can control injection and you can control ignition, what do you want more?
1
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele Engineering is not a "faith based" endeavor son, it is a science that must comply with the laws of mechanics, and the laws of thermal and fluid dynamics. Mazda manufactured the Wankel KKM longer than any other company and they have not released a new production Wankel engine in 23 YEARS! So I sincerely suggest if your hoping for the Wankel to comeback? That you don't hold your breath!
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele "technical feature that effects combustion efficiency" NO, its not. Indeed, while one of the Wankel KKM's flaws is being limited to port induction and exhaust that is not what I was referring to.
doktorbimmer
doktorbimmer
8 months ago
+Chuckiele "I dont see a reason to implement them into an engine that doesnt even need valves," WELL THEN, How do you expect to implement HCCI technology????? Magic? or Hope
Chuckiele
Chuckiele
8 months ago (edited)
All science is based on faith, you may not accept that but there are no true laws in science, they are just valid until they are proven wrong, and they eventually will and so will you. HCCI isnt even properly utilized with valve control yet, so how would you know that it cant be achieved without?
1
doktorbimmer
doktorbimmer
8 months ago
@doktorbimmer big fake just like the leading plug hole
@@erniebrinkrotaryhemi7336 WHY IS THE LEADING PLUG OFF SET FROM CENTER OF THE HOUSING?
piston engine: depending on the driver and some oil change all 15k miles, runs without problems 400k+ miles...
rotary engine: depending on the driver runs around 15k-20k miles, then cracks and u need a new engine, no oil change cause its included in the engine change... pay 6k+usd and run for another 15k to 20k miles...
you thought a bugatti is the car to show u have money? youre mistaken, its a RX8 with around 200k miles on the clock :D
No, piston engines still require much more frequent oil changes than 15k, especially to get 400k no matter what your friends told you. Also, rotaries have the sohn adapter to achieve parallel oil changing requirements to that of standard piston engines. Amazing what dedicated two stroke injection can do huh, and wait till you see how long one lasts.
@@ALmaN11223344 youre mistaken, i had my first car (honda civic vtec) for 15 years (piston) and oilchange around every 20k to 22k ... 562k on the clock when a suv crashed into it in a parkinglot. never had any problems, maybe if you turn on yer car and speed up to 200+ and turn it off, directly after speeding, maybe then u need to get those changes more often, but my rex 8 needed his expensive change nearly all 12k to 15k
Man a Rotary Engine needs 2 Stroke Oli...
@@incardia You've got a weird definition of "needing an oil change" then, if it has particulates and isn't retaining the color of what you're putting in the filter and the oil both NEED the change. 22k without a change and 560k on the same cars odometer are an exception, not the rule. Good oil change practices dictate 5-6k at most, and regardless of how your anecdotes suggest otherwise you've only really provided that story.
forum.bodybuilding.com/showthread.php?t=169746333&page=1 here's a forum full of people who disagree, especially since we're talking sports cars that regularly hit higher RPMs than the 560k foagmobile.
"Dorito" I see you are a man of culture aswell
I saw a bunch of second hand Mazda RX-8 selling for cheap prices on a website. And all of them have their engines swapped for a piston engine like a 2jz. That's how much bad the rotary engine is.
Fuel consumption was also better than a comparable two stroke engine,
but not as good as a conventional four stroke. This eventually became
the downfall of the Wankel design
5:45 Misfiring shistem
MISFAYARINGU SHISTEMU
Ok Keisuke.
Thanks for the excellent presentation.
Owned Mazda RX8 for a 1.5 years. Sold it but want to get another one. Very beauriful and powerfull car. Of course 23 liters per 100km fuel consumption and 100-150k km life length is quite sad news, but despite that the emotions that this car gave me worth that. And if course EXHAUST SOUND "WEW WEW" and shooting fires :)
Dont forget about changing of oil and filters every 3000 km and changing of spark plugs every 10000 :)
I'm afraid rotary will be dead soon just about every car mfg is working on EVs and a electric motor will embarrass just about any kind of gas engine in responsiveness and torque.
*coughs* Tesla Model S *coughs* But srsly, tho I see what you mean. As I said at the start of the comment, I believe that cars like the Tesla Model S are just going to eventually wipe out the 'gas' era, as it were.
23L/100km really? That's too much...
BoyofCreation funny you say that, as a couple weeks ago Elon Musk said that he thinks "the future of the automobile is in gas powered engines" and is now working on designing a combustion based Tesla
Nice explanation, not enough Initial-D memes. 4/5
Jup
@@takumifujiwara3303 takumi you still deliver tofu to this day man? Take a break lol
@@Riccksu Of course I do, but in other cars... I still doesn't fixed her up so im looking for the right engine.
@@Riccksu And important is that its only a job that I run for fun because I guess I love it so much.
@@takumifujiwara3303 i know but go Easy on those poor engines how many did you broke?
I did not know about rotary engine how it work thanks
*Did you know its been obsolete for over 6 years?*
You missed that rotary motors are always in a power cycle so they get hot.
When I think of rotors, I prefer to think of 4 rotors...
Dr.Crouch 787B?
20b all day.
Offset compression is fine, but he didn't offer a solution for the plug-leak issue. However, just as I'm writing this I had the idea, that one could put the spark plugs into the rotor... one per side... Would need to be special plugs and properly ballanced, but it should work... What would also work is to have the spark plugs come in from the flat side of the engine, slightly recessed, so that the rotor would pass over them.
Twin Rotary
Twin turbo:
*SPEED*
And equals: DORITO- SPEEDO DAH!
0:10 Did you ever hear about the Dacia Logan with the 0.9 liter?
Also...Great news!
have you seen the Lodgy oooh what a looker that it!!
Very educational video. Thank you for the video. Fantastically done.
Summary
Piston = reliable
Rotor = empty pit for a brap noise
With recent technology and innovation the claim of ''but the rotary revs to 9-11k'' (outdated comparison) pistons can do that as well - with more torque/hp reliably
30 second club, go!
3:48 I swear that car is a living thing.
Well, I was considering buying an RX-8 but after this video....
lmao fucking me too I was suppose ti see it this weekend but now i have my doubts
What did you guys decide? thinking of getting one
This video really scared them from getting a Mazda lol.
u can swap the rx-8's rotary engine with an electric engine (yeah, its possible) / normal engine :>
Jaime Morales I have an RX8 and that thing is a freaking blast to drive. It’s literally hard not to smile when driving.... but it’s not very reliable and has bad fuel economy witch is the two major downsides. So If you wanna get a RX8 then go ahead!
Rotaries are very reliable if you treat it well!
*Not true... Wankel engines are much less reliable and is one of the reasons they are obsolete today.*
which do u prefer, rotary or piston? i am having a hard time choosing between leaving my suv (tucson 2010) change to hatchback (mazda 3 2010 / up). my dad wont let me have mazda 3 because its rotary he said.
*Mazda no longer manufacturers Wankel engines, All **_Mazda3_** models have 4-cylinder reciprocating engines.*
MAZDA AND TOYOTA CRUSHING NEWS
Dont worry my little 19L chugging RX-7, I still love you!
I am a proud member of the holy church of rotary :)
Gay AF
1.4 and 2 litres is a pretty narrow range. My first fiesta was 957cc and my current car is 2.4l, both inline fours
When the rotor goes around the shaft in the demo I see teeth on teeth action, is that your rev or your grinding bud?
The gears maintain the very important 3:1 ratio between the crankshaft and the triangular piston(rotor)
The idea behind rotary being unreliable is spread by jackasses who don't know how to treat it. They do require more care on a day to day, but can be extremely reliable. Letting it warm up, not cranking and instantly killing it, premixing if you're extremely anal. Otherwise check your oil. They are also capable of generating massive power in a smaller package. And they are simple to work on. It's like anything that isn't a 2j. Treat it like shit and it will be shit. 2j engines, Chevy smallblocks, and the rb26 can be treated bad. They like abuse and keep going with it. Had an fc I used to beat the shit out of on the road, but upgraded mixing valves, and proper operational rituals helped me get about 200,000 out of the engine before swapping in a lovely 20b
ShaunFVG a redline a day keeps the carbon away!
+shaunFVG
well, most people don't like cars, which have double or triple the fuel consumption and tens of times the oil consumption of normal motors.
Etherion I didn't say anything on consumption. These cars were not made for economy cars. We are speaking on reliability. Based on your post, that group of people shouldn't own a rotary. That's like buying a foxbody gt then crying "only 12 miles per gallon!"
Consumption isn't a factor on reliability of rotary. Buying 1 you should know the basic information. The Rx8 for example is the most practical of the rx series. However it still consumes a lot. Now if we talk about a idk a Chevy cobalt, and it consumes a lot of oil, then there is a problem. We are speaking towards reliability. And a rotary is extremely reliable when treated well.
Well, The mechanics that worked on Mazda 787B said that the car(after the 91 Le Mans) could run another 24 Hours in high performance.
No Mana that also had a very special engine in it, not a standard 13 or 20b that the FC or FD guys got
what we wanted to learn: 0:00
what we ended up learning: 2:22