Mazda Promises RX-7 Successor… Again.

День тому

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, Mazda’s made rotary promises they haven’t kept, so will this car even get built? Let’s 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 Rotary’s 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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⭕ For more about rotary engines, check this out:
• Why Rotary Engines Kin...
⭕ 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
Press enquiries: info@overdrive-studios.com
#mazda #rotary #rx7

КОМЕНТАРІ: 117

@dolan-duk 28 днів тому

RIP OVERDRIVE. It's now another of those talking head channels and no longer filled with fun videos.

@Ashfielder Місяць тому

As long as the MX5 remains ICE, I don’t mind Mazda trying some other whacky stuff.

@boopmeister_ 29 днів тому

sadly i think the ND may be the last ICE MX5

@marlonius05 29 днів тому

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...

@mikefoley360 29 днів тому

Production costs on this channel are now at 50p per video.

@stupidocanerosa 29 днів тому

And yet interesting, so win-win.

@mikefoley360 29 днів тому

@@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........

@stupidocanerosa 29 днів тому

@@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.

@mikefoley360 28 днів тому

@@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.

@Nafeels 29 днів тому

You didn’t mention one of the best part of the patent release: Rotary with a VTEC! That’s right! Mazda figured out a way to completely control the intake and exhaust “lift” and timing with…. Get this… 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 “fuck y’all” and made an NA V16 for their upcoming hypercar. With direct injection and EGR, complexity finally arrived at Mazda’s thoughts. Rotary is back on the menu, boys!

@rahulmenon6073 29 днів тому

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....

@Appletank8 29 днів тому

@@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.

@XxXnonameAsDXxX 29 днів тому

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.

@Appletank8 29 днів тому

@@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.

@Nafeels 29 днів тому

⁠⁠⁠@@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 “hiccup” completely at high RPM for more power, or prolong this “hiccup” and increasing MPG/reducing emissions. However, I’m definitely talking out of my ass here. Until Mazda releases their test bench research, we won’t see these types of technology carried over until a few years later, if any.

@themugwump33 Місяць тому

NGL, this new guy giving off 'car daddy' vibes that makes me want to listen to him all day. LOVE IT!!!

@nkermit1 29 днів тому

Talk cars at me, Zaddy T!

@alexmason7103 29 днів тому

This guy has completely ignored the shocking fuel efficiency of rotary engines, I don’t have any numbers to hand but per unit volume of fuel, what’s 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 it’s all about how much electrical energy you can generate per unit volume of fuel?

@Appletank8 29 днів тому

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.

@loi22 29 днів тому

Quality has really fallen off since the Callum and Will went. These magazine-ish videos are nowhere near as fun.

@stupidocanerosa 29 днів тому

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.

@FukU2222 28 днів тому

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

@ewanmcintyre955 15 днів тому

@@FukU2222he's been making lawn mower racing videos and does more UKposts consulting now as a job. Just search lawn mower Callum McIntyre

@Budgy.Derpy12 29 днів тому

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.

@AbandonedRaven Місяць тому

I truly don’t care if it’s rotary or has some sort of hybrid, as long as it looks somewhat close to how the concept car looks, I’m happy. Especially if it’s around the 30-45k price range. I love my Mazda now, so I’m really hyped for whatever the new RX will be like.

@Dyltheboy 29 днів тому

So you expect it to be the price of a current Miata? Delusion bro

@AbandonedRaven 29 днів тому

@@Dyltheboy Regardless, I want one. My main concern isn’t 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. I’m 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 it’ll be RWD hopefully.

@Dyltheboy 29 днів тому

@@AbandonedRaven Mazda knows what they’re doing. They would NOT make the mistake of making it FWD. Maybe AWD with rear bias but I don’t see Mazda making that mistake

@robertkofron47 29 днів тому

For me, if there isn't a rotary engine powering the wheels, it's hard to get excited about it at all.

@AbandonedRaven 29 днів тому

@@robertkofron47 if they suddenly cancelled this whole rotary thing and just threw in a modified version of V6 twin turbo from their other vehicles I’d 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 it’s because it reminds me of the Ford GT90 concept car from the 90s. And other recent “cheaper” sports cars just don’t 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 doesn’t 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.

@robertkofron47 29 днів тому

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.

@converge8008 29 днів тому

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

@johngalt97 29 днів тому

Using a generator/traction motor is also a continuous transmission. Mazda figured out how to use the generator part to enhance efficiency, too. I’d like to see a passive sonic supercharging exhaust, eventually.

@noncog1 29 днів тому

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

@RassoolRacing 29 днів тому

Teach us car daddy!

@mr_sea_turtle 29 днів тому

Such great info. Thank you 🙏🏾

@dalebob9364 Місяць тому

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!

@jamieknight326 29 днів тому

Nice to meet ya. Love the ‘car dad’ vibes :)

@whcwcjecjecuecuw6654 28 днів тому

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

@AnnatarTheMaia День тому

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.

@Driver61 29 днів тому

Hey, new car daddy is pretty good! 😂

@MyRealName 29 днів тому

mid

@kizmetmars 29 днів тому

@@MyRealName mid at best

@marlonius05 29 днів тому

do race car drivers understand regression?

@FiggyDRandoms 29 днів тому

He can't pronounce MAZ-DA properly.

@loi22 29 днів тому

Will and Callum were better. Big mistake letting them go.

@babyluvangie 29 днів тому

Dont know what a rotarty is, but this guy is getting my gears going.

@marcelsjrossignol2056 28 днів тому

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.

@gordythecreator Місяць тому

Praise the Designer for creating such beauty that simultaneously "Screams MAZDA"

@gordythecreator Місяць тому

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"

@ChadGeidel 27 днів тому

The MX-30 REV is a perfect vehicle for a staggering number of people - including me. It’s too bad it’s not offered in the US.

@RichardW.-2 24 дні тому

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.

@user-sd3ik9rt6d Місяць тому

Well, an electric motor is kind of rotary, right?

@BPBomber 29 днів тому

Heh. I like this guy. Great video.

@M24OFGUN 29 днів тому

miss Will and Collum's stupid ideas and videos, those are fun to watch instead of these

@stupidocanerosa 29 днів тому

You can follow them instead of complaining like a grumpy old man.

@robertkofron47 29 днів тому

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.

@Keepraging 29 днів тому

WHERE'S SCOTTTTT AND WHERE'S THE DRIVING???

@stupidocanerosa 29 днів тому

IT'S OVERDRIVE NOT DRIVER61!!!

@RallycrossGT 29 днів тому

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...

@racing-ric 26 днів тому

I super really like they want to bring back pop-up headlights❤

@treefittyy9731 29 днів тому

After being so used to Scott's louder more energetic delivery Tiernan's more relaxed presentation style is always welcome.

@xXAbdulBaqiXx 29 днів тому

What about linear engines?

@Zaphael 29 днів тому

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.

@nkermit1 29 днів тому

Car Daddy is a nerd in the best way. The curiosity and passion comes through loud and clear - fun to watch!

@Napert 9 днів тому

I want more pt-r videos

@chefcamsey1375 29 днів тому

What the hell is even that guy 😂

@ruthlesshatchet6353 28 днів тому

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.

@stupidocanerosa 28 днів тому

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.

@jaimeizreal8810 29 днів тому

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.

@Appletank8 29 днів тому

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.

@cocaine_albear Місяць тому

Yoooo new host? I'm into it

@constantinnescu1564 29 днів тому

Look, the rotary engines look like revolutionary , but only on the paper. În the real world, în 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 în an electric car , or making a hybride with a rotary îs 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 în 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 ?

@repapeti98 29 днів тому

0:25 Love the Borderlands-style introduction

@daveblock4061 Місяць тому

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.

@Appletank8 29 днів тому

Rotary mid engine?

@seancollins9745 29 днів тому

The obsessive love for rotaries is built in sillyness

@nathanwright8477 28 днів тому

Why not just get Cal or Will to present?

@pdsnpsnldlqnop3330 26 днів тому

Coz they buried under patio - um

@azaroth75 29 днів тому

I lost hope in Subaru, now my hope in Mazda

@gladlawson61 29 днів тому

Tiernen are you driving the car upside down? If not u should

@scrubsscrubs694 Місяць тому

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.

@mahmoudafifi8532 Місяць тому

FIRST >:)

@ramoncruz9910 28 днів тому

If mazda dont make a rotary car.....my safe money will go to toyota, honda, nissan or subaru. 😳😳😳thats that.

@emilydrivingthings 29 днів тому

🥵more car daddy plz

@ptolamaustittan 29 днів тому

Why cant Americans pronounce mazda it had 2 A s in then you pronounce the A as a U .

@FiggyDRandoms 29 днів тому

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'🤷‍♂ but yet if someone is called Herb (Herbert for short) they pronounce it properly😂

@3089280288 27 днів тому

I can deal with a MX7

@gordythecreator 29 днів тому

UN-Mistakably Mazda

@thomasheuer1916 29 днів тому

Unfortunately I think they also drink alot

@gnrsgl 24 дні тому

Reminds me of waiting for Chinese Democracy to come out

@arcaneminded 29 днів тому

Mozda lol

@Lessflaw Місяць тому

wut

@ownyourworld 29 днів тому

EV’s are here to control you. Turned off with a flick of a switch if you don’t pay to drive.

@stupidocanerosa 29 днів тому

😂😂😂 the new frontier of hoaxes 😂😂😂

@kapilchhabria1727 Місяць тому

When does inhaling all those gasoline fumes help one achieve a purposeful life?

@madawacka 29 днів тому

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...

@Bitulescu 29 днів тому

Came here to see a dying channel, wasn't disappointed

@stupidocanerosa 29 днів тому

You should've paid for the previous version, so you shouldn't complain now.

@Al3xisAE 29 днів тому

Who? What? Unsubbed

@phillipstewart2031 29 днів тому

I hope the other boys surpass this channel

@stupidocanerosa 29 днів тому

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.

@nealchambers2306 27 днів тому

Such a shame this channel has been ruined 😢

@BOBimusRex 29 днів тому

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

@sweetcorn1968 29 днів тому

Nope. Sorry bye.

@cdangers 29 днів тому

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.

@davehoffman515 29 днів тому

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.

@Appletank8 29 днів тому

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.