Mazda Promises RX-7 Successorโฆ Again.
์์ค ์ฝ๋
- ๊ฒ์์ผ 2024. 04. 26.
- The Iconic SP from Mazda is supposed to be a rotary-powered successor to the RX-7. But it's actually a hybrid EV. Is that really a "rotary sports car"? And over the past decade, Mazdaโs made rotary promises they havenโt kept, so will this car even get built? Letโs find out!
In this video, we cover the recent history of Mazda's rotary engine, including the RX-7, RX-8, and Renesis engine, the many rumors and promises that Mazda made about its return, and the disappointment when it finally came back in the MX-30 R-EV. We also cover how rotary engines work, their problems, and why they might be a good choice for hybrid EVs. We cover the latest rumors about rotary's return, and the gorgeous Iconic SP sports car concept. Is rotary really back? Maybe not!
00:00 Is Rotary Back?
00:40 Rotaryโs Decline
01:58 False Rumors
03:06 Disappointing Return
04:57 How It Works
05:53 Why Rotary Hybrids?
07:14 Rotary Problems
08:27 Hope Returns
09:26 Iconic SP
09:48 The Catches
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โญ For more about rotary engines, check this out:
โข Why Rotary Engines Kin...
โญ Want to see more weird engines? Check out this one from Honda:
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Host/Writer: Tiernan A.I.
Writer: Joey Rassool
Editor: Dean Markham
Animator: Dragos/CDP Media
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#mazda #rotary #rx7 - ์๋์ฐจ
![[ENG]์ธ๋์ฒ๋ผ ๋๊ณ ํ ํ์ด๊ณฐ์ฅฌ์ ์ธ์นจ๐ feat.์ฐํ์ด๋ฃจ์ด๏ฝ#ํ๋ค์์ญ #155 #์์ด๋ฌํธ๋ฃจํ](http://i.ytimg.com/vi/fVpNSP9D7Lg/mqdefault.jpg)
RIP OVERDRIVE. It's now another of those talking head channels and no longer filled with fun videos.
As long as the MX5 remains ICE, I donโt mind Mazda trying some other whacky stuff.
sadly i think the ND may be the last ICE MX5
NGL, the essence of overdrive/driver has gotten a tad lost recently, While I'm eager to see project inversion, I'm seriously not holding out hope.. TDC ftw, if you know you know...
Production costs on this channel are now at 50p per video.
And yet interesting, so win-win.
@@stupidocanerosa The viewing numbers do not reflect your comment. 16k views 750 likes. TDC's video from 3 days ago has more views than this channel has had all month (4 videos). They got more likes than this video has views........
@@mikefoley360 Because they changed audience, some are leaving, others will arrive. Or at least is what they hope. I like this new format and I understand the reasons of this change. I miss the old funny ones too, but I think this is still a work in progress so I'll wait and see what's next.
@@stupidocanerosa TDC didn't have an audience a month ago.
"Overdriving changed audience" from car guys to car guys. Changing audience doesn't answer for the lack of "likes" on the video (Currently 840 likes with 22k views) that's a poor ratio.
If you enjoy it, great, I'm not trying to stop folk from enjoying things. My post was an observation regarding production costs. The channel has 500k subs but has changed to a guy reading a script with no production costs other than an editor with a laptop.
I too understand the reasons for this change, money.
Hopefully things improve and everyone enjoys it going forward.
You didnโt mention one of the best part of the patent release: Rotary with a VTEC!
Thatโs right! Mazda figured out a way to completely control the intake and exhaust โliftโ and timing withโฆ. Get thisโฆ a HUGE ASS electric motor. Since the rotors and e-shaft assembly are light enough to be hooked directly to an electric motor, Mazda engineers can change its rotation speed directly. Add that to extra auxiliary electric motors and the patented rotary engine will have a greatly peaky torque curve and an incredible throttle response thanks to NA engine. Same reason why Bugatti said โfuck yโallโ and made an NA V16 for their upcoming hypercar.
With direct injection and EGR, complexity finally arrived at Mazdaโs thoughts. Rotary is back on the menu, boys!
Sorry friend, you're not making sense. Could you please elaborate how an engine with no valves (but ports) can mimic a Vtec, with electric motors ?
I'm puzzled....
โ@@rahulmenon6073 I believe Engineering Explained did a video, but the tldr is instead of variable valve timing, they're doing variable stroke timing. Instead of extending the time a valve is open, they instead extend the time the rotor is doing a stroke by slowing it down at that moment, then speeding it up afterwards.
I dont see how they could solve the emissions issues with these. Im all for the rotary coming back better than ever but all of these point to a super optimized generator for hybrids.
I would love to buy a performance hybrid with this setup tho.
@@XxXnonameAsDXxX Even according to Mazda's own released numbers, it gets around 31 mpg, which is barely any better than a non-hybrid from several years ago. Against its contemporaries like the Rav4 hybrid, which gets low 40s, it really sucks. I remember a paper from around a decade ago, and even assuming a spherical rotary with perfect reliability, its best thermal efficiency is still about 20% worse than a piston's.
โ โโ โโ @@rahulmenon6073Variable stroke as Appletank said. A large electric motor not only adjusts the timing between the different strokes, but also putting extra torque at the output shaft.
The combustion event in a rotary engine also briefly halts and reverses the direction of the rotors before turning in one direction. Considering an infinitely variable rotational speed, the electric motor can either eliminate this โhiccupโ completely at high RPM for more power, or prolong this โhiccupโ and increasing MPG/reducing emissions.
However, Iโm definitely talking out of my ass here. Until Mazda releases their test bench research, we wonโt see these types of technology carried over until a few years later, if any.
NGL, this new guy giving off 'car daddy' vibes that makes me want to listen to him all day. LOVE IT!!!
Talk cars at me, Zaddy T!
This guy has completely ignored the shocking fuel efficiency of rotary engines, I donโt have any numbers to hand but per unit volume of fuel, whatโs the difference between piston and rotary engines in terms of energy per unit volume? Engine size is of no concern in modern day cars - surely itโs all about how much electrical energy you can generate per unit volume of fuel?
Yes that's the real limiting flaw of the rotary. Even assuming perfect reliability, the geometry alone causes it to be 10-20% worse in combustion efficiency than a piston engine. Stretched combustion chamber wastes energy into heating the housing, a moving combustion chamber forces the flame front to chase the rotor, and the holes required for spark plugs is an inherent leakage source. You might be able extract an extra % or so from slowing the power stroke, but it's a difficult problem.
Quality has really fallen off since the Callum and Will went. These magazine-ish videos are nowhere near as fun.
It's matter of cost-benefit. If your costs surpass the revenues there's something wrong in the project and what's left to do is at least try to make a change.
Maybe they'll lose the few aficionados of the "Top Gear" copycat, but they'll gain others interested in the new format. Remember they are not doing it for fun, but to maintain their families.
Where did Callum go anyways? I know will started his own channel w/ that other bloke, TDC, but I haven't seen Callum pop up anywhere
โ@@FukU2222he's been making lawn mower racing videos and does more KRplus consulting now as a job. Just search lawn mower Callum McIntyre
I'd settle for a body kit/conversion for a MX5. Just for a great handling car, and something that resembles the RX-VISION concept many, myself included, fell in love with.
I truly donโt care if itโs rotary or has some sort of hybrid, as long as it looks somewhat close to how the concept car looks, Iโm happy. Especially if itโs around the 30-45k price range. I love my Mazda now, so Iโm really hyped for whatever the new RX will be like.
So you expect it to be the price of a current Miata? Delusion bro
@@Dyltheboy Regardless, I want one. My main concern isnโt so much the price, nor did I intend for that to be the point of my comment. More so the looks and how it drives/sounds. Iโm not a big Supra guy but I loved how the FT1 concept looked, and the actual car (before heavy body modifications) looks kinda eh to me. The only thing that might kill this particular car for me is if it was front wheel drive, but based on the patents mentioned in this video itโll be RWD hopefully.
@@AbandonedRaven Mazda knows what theyโre doing. They would NOT make the mistake of making it FWD. Maybe AWD with rear bias but I donโt see Mazda making that mistake
For me, if there isn't a rotary engine powering the wheels, it's hard to get excited about it at all.
@@robertkofron47 if they suddenly cancelled this whole rotary thing and just threw in a modified version of V6 twin turbo from their other vehicles Iโd still like it. I just want a good looking new sports car that sounds good. Something about the front and overall styling of this really works for me (along with their recents designs in general). But this particular car I think itโs because it reminds me of the Ford GT90 concept car from the 90s. And other recent โcheaperโ sports cars just donโt look that good to me. But I care a lot about design sometimes more than performance due to my particular interests, and I know that doesnโt apply to everyone; especially with a lot of car guys.
Edit: I remember a video where someone had an FC RX7 and he swapped out the rotary for a 1JZ; and it still sounded and look like a clean street car. Just so you get an idea.
RX8 doesn't have as much HP as the RX7 but it revs to 9500RPM and has a higher compression ratio, it's the most powerful NA rotary engine ever made for production cars. 240HP from a 1.3L engine is impressive without a turbo. It's Ford that forced them to take away the turbo and also insisted that the car be a "four door sedan" lol.
Yeah everyone forgets that renesis is NA, like yeah it's only 240 at the crack, but it revs to the moon has a perfectly linear power band and makes such a nice sound with an exhaust. BRRRRRRRRRRRRRRRAAAAAAAAAAAAAA
Using a generator/traction motor is also a continuous transmission. Mazda figured out how to use the generator part to enhance efficiency, too.
Iโd like to see a passive sonic supercharging exhaust, eventually.
The rotary should only operate at one speed, it's most efficient, so there isn't need for variance on the load side.
As far as the other bit, doesn't apply to rotaries since they're 4 stroke
Teach us car daddy!
Such great info. Thank you ๐๐พ
Anyone with a rotary out there, just get yourself some Quicksilver from Mercury and 100 to 1 your fuel and profit from having a lubrication on startup instead of waiting for the thermal pellet to get out of the way of the oil!
Nice to meet ya. Love the โcar dadโ vibes :)
10:05 would be cool if there would be a mode in which the electric motors just work as "direct" transmission so can drive it more or less like a normal ice
RX-9 was supposed to have a straight six 3.0 L turbodiesel, but it was supposed to have an automatic transmission, so no loss there. If it had come as a diesel with a manual, it would have been a success.
Hey, new car daddy is pretty good! ๐
mid
@@MyRealName mid at best
do race car drivers understand regression?
He can't pronounce MAZ-DA properly.
Will and Callum were better. Big mistake letting them go.
Dont know what a rotarty is, but this guy is getting my gears going.
Why not add a second alternator for battery charging. With 2 alternator output of 2,200 amps into a 12 volt system. With a inverter to 24 volts to a electric motor.
Praise the Designer for creating such beauty that simultaneously "Screams MAZDA"
hey MAZDA... Gordy don't lie.
this "SP" is the most brilliantly designed car for y'all since FD & Miata. Praise the Designer for creating such beauty that simultaneously "Screams MAZDA"
The MX-30 REV is a perfect vehicle for a staggering number of people - including me. Itโs too bad itโs not offered in the US.
Mazda needs to consider the LiquidPiston rotary engine design which eliminates all of the Wankel rotary engine design problems, including the lubrication of the seals which cannot be effectively achieved in the Wankel engine design.
The LiquidPiston rotary design is like the Wankel turned inside-out.
Well, an electric motor is kind of rotary, right?
Heh. I like this guy. Great video.
miss Will and Collum's stupid ideas and videos, those are fun to watch instead of these
You can follow them instead of complaining like a grumpy old man.
I just wish they had the rotary engine driving the wheels, if they are just a generator then they lose all of the rotary spirit that made us love these cars to begin with.
WHERE'S SCOTTTTT AND WHERE'S THE DRIVING???
IT'S OVERDRIVE NOT DRIVER61!!!
yo, great video and GREAT presentation. more of this please. Rotary are dead, unfortunately. our only hope for "fun" cars in the future lies with Toyota Hydrogen ICE cars, I think...
I super really like they want to bring back pop-up headlightsโค
After being so used to Scott's louder more energetic delivery Tiernan's more relaxed presentation style is always welcome.
What about linear engines?
3200 lbs? For a vehicle with an electric drivetrain? The Tesla Model 3 Performance weighs over 4000 lbs and does 0-60 in ~3 sec. Electric performance with ICE weight, HELL YES.
Car Daddy is a nerd in the best way. The curiosity and passion comes through loud and clear - fun to watch!
I want more pt-r videos
What the hell is even that guy ๐
I forget Mazda exist. I think of them like Buick or Oldsmobile, they used to make cool cars but noone cares if you buy a new one nowadays. Idk if either of those two are still making vehicles either.
Well, here in Europe they presented a new series of new generation diesel SUVs and I must admit their engine are pretty clever. Decently powerful yet efficient and frugal.
Answer: This powertrain features Mazda's unique two-rotor rotary EV system, which remains compact and thus offers a high degree of layout flexibility, enabling the concept model to have a low center of gravity to enhance driving performance.
IMO Mazda made a mistake in not trying to capitalize on a rotary generator's greatest strength, its small size, by not at least having extra EV range compared to its rivals. Because the fuel efficiency still sucks as a generator, around 31 mpg according to their own numbers, you really want to avoid using it when possible.
Yoooo new host? I'm into it
Look, the rotary engines look like revolutionary , but only on the paper. รn the real world, รฎn the previous RX7 and RX8 models, they simply werent reliable enough for a covenient use. So, even they are light and revy, when they work, though they dont let you to enjoy too long. Becouse the head ake its just around the corner . And this is unacceptable.
Using the rotary engines as a range extender รฎn an electric car , or making a hybride with a rotary รฎs just an overcomplicated and again an inconvenient solution.
Comon guys, We just want a classic, affordable(Max. $60K) , RX 7 with a V6 turbocharged 3,0 liter รฎn the 400 hp range to compete with Supra and Nissan Z. A japanese reliable, premium, beatifuul, sport car , to enjoy and the resale it , in a perfect condition, after 10 years with a minimum depreciation. Can you finally, give this to us Mazda ?
0:25 Love the Borderlands-style introduction
Rotary enthusiasts are really enthusiastic. Profound. And what is ideal about 50/50 weight distribution? Too far forward. Every race/high performance car is mid engined with a distribution of around 40/60. I assume you know the physics behind this.
Rotary mid engine?
The obsessive love for rotaries is built in sillyness
Why not just get Cal or Will to present?
Coz they buried under patio - um
I lost hope in Subaru, now my hope in Mazda
Tiernen are you driving the car upside down? If not u should
They have had some of the most amazing concepts I've ever seen. Then this horrendous one is the one they are going to go with? Yuck.
FIRST >:)
If mazda dont make a rotary car.....my safe money will go to toyota, honda, nissan or subaru. ๐ณ๐ณ๐ณthats that.
๐ฅตmore car daddy plz
Why cant Americans pronounce mazda it had 2 A s in then you pronounce the A as a U .
Because they tend to pronounce the first 2 letters together, MA-zda... I just watched a video where the guy pronounced the word 'herb' as 'urb'๐คทโโ but yet if someone is called Herb (Herbert for short) they pronounce it properly๐
I can deal with a MX7
UN-Mistakably Mazda
Unfortunately I think they also drink alot
Reminds me of waiting for Chinese Democracy to come out
Mozda lol
wut
EVโs are here to control you. Turned off with a flick of a switch if you donโt pay to drive.
๐๐๐ the new frontier of hoaxes ๐๐๐
When does inhaling all those gasoline fumes help one achieve a purposeful life?
Title should be "will" not "is" as it turns out, there is no new mazda sports car, only rumors about one. I am very dissapointed with this clickbait...
Came here to see a dying channel, wasn't disappointed
You should've paid for the previous version, so you shouldn't complain now.
Who? What? Unsubbed
I hope the other boys surpass this channel
That's petty. If you don't like a channel that you can see FOR FREE, just leave. It doesn't make you a better person leaving comments full of grudge just because they stole your favourite FREE content. You should've pay before if you wanted them to keep going. Now it's late and childish to complain.
Such a shame this channel has been ruined ๐ข
Its not REALLY anything. Its not even a car. Its vaporware. Its an ad. Show me one driving on a road, and I'll change my mind. Clickbait
Nope. Sorry bye.
Dude, you talk about a hybrid car, which means people are looking for efficiency, but then never talk about how inefficient rotary engines are. You compare it to a GM engine and say... hey look how little power this engine makes. So dumb. It makes that much power because that's how much they wanted it to make. Why don't you look at the 1.5L turbo GM made that was rated at 284HP? Because it doesn't fit your narrative.
Porsche makes dual drive hybrids with 400+hp with an estimated 80 mpge thanks to the electric doing a lot of the heavy lifting in day to day driving so, if a dual rotor hybrid can get near that for under 50k it's going to do quite well.
The Renesis peaked at 232hp naturally aspirated at 1.3L. Not many engines out there pack that much horsepower into that small of a package. What does that 1.5L GM do without turbo? I'm not sure what your point is.
Throw a turbo on a Renesis and people are making 400+. 3 rotors clear 1000hp.
The new rotary design has an advanced VVT like design to burn more of the fuel than previous rotaries to increase fuel efficiency. I doubt it will be sipping fuel like a Prius but, should be better than the 16-ish combined mpg I get in my RX8 and get more hp per rotor due to a change in the rotor shape.
According to Mazda's release data, it has 400 mile total on average. its EV range is 50, its tank is 11 gallons. 350mi/11gal is roughly 31 mpg. This sucks.
In comparison, the Rav4 Prime gets 40 at minimum, and an equivalent electric range.
Not the same. I have given enough time, but boring for me now. Unsub
I'd rather have cancer than an EV.
That is a statement. To everyone else: I hope you try out EVs before you make your decision ๐