@@RubyS.1 Weird nasal one, Daily Dose Of Internet isn`t AI and is probably the most annoying and vapid "narrator" of all time, just saying what happens on screen should be banned too.. "here is a kitten crossing a road, now it crossed the road". And that`s that. Fk off.
When the bike goes fast down the runway doesn't really excite me as speed doesn't really give a true impression on video but the speed at which it does a turnaround at the end of the runway and then back past the camera again really does excite me. this is an awesome bike.
In Theoretical numbers you are right. The sun that you quoted is an extrapolation of the designed output for the 125. Run that figure on a 250, yz450f, cbr 650…..you will end up with some very strange numbers. If my memory serves, it was either the first gen R1 or the second where they managed, very nearly, a true 1:1. That is 1hp per cubic inch. Engine tech has not moved much since then. In 03 the V&M Yamaha Mann TT bike spent 100,000 hrs on the dyno trying to find more power…..they got 5 by adjusting fuel delivery…….. The only exact numbers in engines is the physical size that you measure right then and there.
@Matthew-wn8oq True. Most oems aim for smooth linear power delivery to maintain traction when pushing the limits of the machine. But if they were truly aiming for practical, I think a rotary just from a reliability, emissions and fuel consumption standpoint sort of negate that. I understand the technology has come a long way on the sealing front. But still. They started with a challenging platform. Definitely unique though.
@carlospacheco8640 Rob Dahm is working wonders in that area to make boosted rotaries reliable. But overall, they are plagued by failures. Not alot of repair shops understand them well enough to build them properly.
@@Henrik.Yngvesson i dont know english, but you are not in right. Rotation engine have 1 explosion in one revolution, and that make the same "powerhouse" like 2t engine, absolutely the same. But, i understand you, you are in right. 3 takts... But i look just in the power abilities, same like 2t. And you name is very precise! 3t - agree.
I had to listen several times to be sure he (it?) said that before commenting the same - indeed, torque isn't measured in 'nano meters' but in 'newton meters' or 'lbf feet'.......'nano' means 1 in a billion or 0.000000001. So he basically said it has a huge torque of 142 nano-meters i.e. that it has 0.000000142 meters of torque (when meters is distance). Newton is a metric measure of force and 1 N is equal to 1 kg*m/s2 (T=m*a): ruclips.net/video/PNPjHdtyOlM/видео.html
At the 1996 RC onroad worlds (I finished 12th), I met a guy named Mike Swager, his motor guy was Ron Perris (now RIP) built mikes single cylinder, 7 port motor for his 1/8 scale rc car that did 60,000 rpm on 80% nitro and was 0.21ci or 3.5cc that made 4hp on the dyno. Scaled up that is 1142hp per liter, or 3.58 times the power this motor makes. Remember, this was in 1996, 28 years ago.
@@DrewWithington is this a come back to a rhetorical questioned not aimed at you? Or just trolling for lols? Edit: I'm a little dull and just thought you had a typo. Lol I get it now. More Man-o than I'll ever be? 😆 I don't even think this hypothetical character exist tho brah? It was a piss take at the narrator getting the incriment units of measurement incorrect; he said nanometres of torque which is incorrect and isn't something to be boasting about, so easy to assume that he meant Newton metres of torque (which is the correct unit of measurement) and the hint is in the name, right? Newtonmetres of torque named after Sir Isaac Newton. He existed and that's a correct measurement of torque. Nanometres of torque maybe unit of measurement that etymologists use to describe the the amount of torque a grasshoppers legs produce or something like that?
Truly weird to see such a sleek machine with the rear shock absorber mounted at side of the bike like a 1970s motorcycle ....... yet only 1 shock absorber is used .
@@laimonasmusauskas1153 Hehe my bad! If we include RC car nitro race-engines (3,5") I think we have even higher power there. I read something about 600-700hp/l
Just found your channel, awesome work. You should look into the Highland V twin dirt bike. Haven't seen anyone do a video looking into them. Thank you keep up the great work 👍
Thanks for this - the perfect follow-up to your Norton Rotary video. I'd love to see Hicky on one for the TT. Interesting to see the motor uses an Oberon clutch slave cylinder - Oberon is only 30 minutes from me and I have one of their units on my Ducati.
I had a 'Saki H1. Step the needles up one notch and ask tower for clearance to launch. 40mpg 500cc. Adrenaline rush! Very hard to ride in the rain. Not much ground clearance for turns, and driveline was way too weak. Dash off from a lot of would be racers... I think I topped it out around 140. I want another.
I understood that the suspensions were Bitubo because I saw the writing, but despite all my efforts, I still couldn't figure out which Ducati the video was referring to. The pronunciation is really too absurd for me.
So funny that every time a combustion engine has huge claims it falls short of a 2 strokes real potential. When the oil burning stops, there will not be a blind eye to be seen.
@@nj2352 bann every sport, in that way it safes ships full of fuel and oil. a couple of gallons of oil in moto gp does noet matter a thing, 4 strokes use oil and making all those parts is way more energy(fuel) and parts(polution)' no two stroke is politics i gues, a commercial thing, almost all road bikes a 4 stroke. no expert here, but 2 stroke is the way to go for compitition , light, less parts, more cheap, watch moto gp 1990ish . that sound is unforgettable, before big bang :) and way more agile than the modernn, indeed many hp 1000 4stroke
@@fendermarshallbluesbox3407 There is or was a v twin development with an extra set of piston and ring with the transfer sandwiched in between the 2 halfs and it uses that arrangement in conjunction with the intake to throw the mixture into the opposite cylinder. It is funny you mention a blower, that is what the Detroit diesel 2 stroke used and thats where we got the 6-71 blowers from.
Even though 700cc sounds like a small amount, to be fair, you should count the impulse cycles per revolution which would put it closer to a 2.1 liter equivalent not 700cc. There are three combustion cycles per single rotation.
My only experience of the wankel engine is getting a lift from a mate once in a Mazda RX8. I know it goes against all common sense to buy one, but man o man, it feels so much like riding a 2 stroke dirt bike. I want one 😁
I've heard various explanations and none hold up under the same scrutiny applied to any other engine for spring rotary engines to claim 1/3 of their actual displacement. If each cylinder face of the rotor displaces/moves 690cc of air per revolution through the engine and you have 3 cylinder faces per rotor that comes out to 1980cc of air displaced per revolution of the rotor. Making it a 2 liter engine not a 690cc one. If you applied the reasoning they do for displacement in a rotary to a reciprocating engine an ls400's engine would be 250cc not 4000cc.
Oh yeah? Neat. Now, how often do you need to replace the apex seals? Rotaries have been beaten to death. Everyone knows they are light and powerful. They don't tend to be efficient or low maintenance. For every manufacturer to date, this has been a reason to NOT pursue them. I didn't hear or see much about the Achilles' heel of this engine configuration. Good luck.
That would be Newton metres (Nm) not nano metres which is a billionth of a metre....and for those who are going to complain, a meter is a gauge, metre is a unit of distance.
The standard method of measuring rotary displacement is unrealistic. Rotaries actually have double the displacement listed, based on time/cycles, which is the only parallel with piston engines. The Mazda Wankel rotaries rated at 1.3L are only measuring one of the rotor faces or combustion chambers. 1 of 3. However, that doesn't even equate to one full stroke. Rotaries fire much slower than piston engines, but have 3 times the "cylinders". 1.3L=2.6L.
2027 maybe he can see some of those on motogp because of new regulamentation they will drop to 850cc and to get the most out of it this seems a good option
In order to compare rotary engine displacement to 4-stroke piston engine displacement, you have to double the rotary engine's size. A rotary engine's displacement rating is effectively measured like that of a 2-stroke piston engine. That's why a 2.6L 4-rotor Mazda (12 combustion chambers) could compete directly along side a 6L V12 jaguar (787b vs XJR-15). Therefore a Mazda 1.3L 2-rotor at 9krpm is directly comparable to a 2.6L 4-storke V6 at 9k rpm (or a 2.6L 2-stroke V6 at 4.5krpm). As a 155hp/liter 3-cylinder 1.5L, this engine doesn't seem all that impressive, and definitely nowhere near F1. What IS impressive about rotaries in general, is their power-density. It's incredibly small for it's output. Something motorcycles can clearly benefit from.....if you can make it last.
This is true but not totally accurate. The 1.3l stated for the Mazda engine is the engine's swept volume, but because a rotary uses all 3 sides of the rotor simultaneously (albeit at different stages of the 4 stroke cycle). This is similar to how a 2 stroke uses both sides of the piston, also making one power stroke per rotation of the eccentric shaft.
"not intended for road use" sounds more like a suggestion than a legality...
From 2025, Euro 5+ emissions kicks in in Europe
Good luck passing that.
@@martinandersson5278 fortunately, I don't live in Europe. 😎
@@JustSomeExpatgot em
'not intended for road use' probably means it isn't road legal in majority of places
@@junk3996 nooooooo, really? I never would have thought. Thank for enlightening all of us as we'd never had know had you not said.
Even Guy Martin admitted he needed a bit of time to domesticate this motorbike, meaning the engine is amazingly very wild.
@pasjakola I can't tell if you're joking or not.
@pasjakola if you have to ask, you don't need to know
@pasjakolafamous British bike racer and record breaker 😅
@pasjakola Isle of man survivor like 20x over
@@kz6fittycentGuy isn’t even that good simmer down 🤣
142 nanometers of torque is insane
HAHAHAHAHAHHAHAHAHA
we should start a classic wIErdbike memes.
you are mistaken about units of torque or you are just funny.^^
😂
3:39
Lost count of how many accents this AI voice has cycled through.
Haha it really does. Second one is stereotypical nerd voice
We need to really stop this AI voice BS !!!
@@Krasher247 I can't stand it either. Especially that weird nasal one kinda makes me wonder what the person posting sounds like
Oh it’s AI! Damn time to unsubscribe, it got me.
@@RubyS.1 Weird nasal one, Daily Dose Of Internet isn`t AI and is probably the most annoying and vapid "narrator" of all time, just saying what happens on screen should be banned too..
"here is a kitten crossing a road, now it crossed the road".
And that`s that.
Fk off.
When the bike goes fast down the runway doesn't really excite me as speed doesn't really give a true impression on video but the speed at which it does a turnaround at the end of the runway and then back past the camera again really does excite me. this is an awesome bike.
I love the content of these videos, almost as much as the wild accent changes throughout them
Milyard is already working on a six rotor version of this
hes still busy with restoring the norton nemesis v8 currently..
Milyard’s will be a 5 liter singe rotor….
R
Milards done some amazing work !
Great video, but the highest hp per liter engine in a motorcycle is the aprilia Rsa 125 with more than 400 hp per liter
That is a crazy amount of horsepower for 2 wheels
@@phillippitts6294 early 2000's gp bikes where 2 strokes insanity
Even the Suter mmx 500 has 329hp/liter with it’s 576cc 190 hp 2 stroke v4… the smaller the engine the higher the HP/cc
@@justinjheijnen the more rpm a engine runs the more hp it has en the bigger a and the more ccs
In Theoretical numbers you are right.
The sun that you quoted is an extrapolation of the designed output for the 125. Run that figure on a 250, yz450f, cbr 650…..you will end up with some very strange numbers.
If my memory serves, it was either the first gen R1 or the second where they managed, very nearly, a true 1:1. That is 1hp per cubic inch. Engine tech has not moved much since then. In 03 the V&M Yamaha Mann TT bike spent 100,000 hrs on the dyno trying to find more power…..they got 5 by adjusting fuel delivery……..
The only exact numbers in engines is the physical size that you measure right then and there.
Add a turbo. Rotaries have high egt's. Best way to recover that lost thermal energy is to convert it into boost. Then this bike would be nuts.
@Matthew-wn8oq True. Most oems aim for smooth linear power delivery to maintain traction when pushing the limits of the machine. But if they were truly aiming for practical, I think a rotary just from a reliability, emissions and fuel consumption standpoint sort of negate that. I understand the technology has come a long way on the sealing front. But still. They started with a challenging platform. Definitely unique though.
Turbos don't run on egt
@josue_kay Turbines literally convert temperature and pressure into rotational kinetic energy. So, I'm not sure what your saying
Forced induction and rotary = amazing power + blown motor. Everyone has learned this from the failure of the RX-7.
@carlospacheco8640 Rob Dahm is working wonders in that area to make boosted rotaries reliable. But overall, they are plagued by failures. Not alot of repair shops understand them well enough to build them properly.
It nearly sounds like a 2 stroke thats awesome
That’s effectively what they are. No valves
That's why i always called them 3-strokes right between the 2-stroke and 4-stroke engines
it is 2t
@@KristianKG No, the rotor makes 3 "cycles" in one revolution. Intake, compression, exhaust. So I'm also saying they're 3 "strokes".
@@Henrik.Yngvesson i dont know english, but you are not in right. Rotation engine have 1 explosion in one revolution, and that make the same "powerhouse" like 2t engine, absolutely the same. But, i understand you, you are in right. 3 takts... But i look just in the power abilities, same like 2t.
And you name is very precise! 3t - agree.
We want Rotary GP🎉
3:38
“A huge torque of 140 nano meters”
;)
I just commented the same.... Is this video narrated by AI?
I had to listen several times to be sure he (it?) said that before commenting the same - indeed, torque isn't measured in 'nano meters' but in 'newton meters' or 'lbf feet'.......'nano' means 1 in a billion or 0.000000001. So he basically said it has a huge torque of 142 nano-meters i.e. that it has 0.000000142 meters of torque (when meters is distance). Newton is a metric measure of force and 1 N is equal to 1 kg*m/s2 (T=m*a): ruclips.net/video/PNPjHdtyOlM/видео.html
It means Newton meters. Silly AI voice.
At the 1996 RC onroad worlds (I finished 12th), I met a guy named Mike Swager, his motor guy was Ron Perris (now RIP) built mikes single cylinder, 7 port motor for his 1/8 scale rc car that did 60,000 rpm on 80% nitro and was 0.21ci or 3.5cc that made 4hp on the dyno. Scaled up that is 1142hp per liter, or 3.58 times the power this motor makes. Remember, this was in 1996, 28 years ago.
Who is this Sir Isaac Nano that you speak of?
More mano than you'll ever be.
@@DrewWithington is this a come back to a rhetorical questioned not aimed at you? Or just trolling for lols?
Edit: I'm a little dull and just thought you had a typo. Lol I get it now.
More Man-o than I'll ever be? 😆
I don't even think this hypothetical character exist tho brah? It was a piss take at the narrator getting the incriment units of measurement incorrect; he said nanometres of torque which is incorrect and isn't something to be boasting about, so easy to assume that he meant Newton metres of torque (which is the correct unit of measurement) and the hint is in the name, right? Newtonmetres of torque named after Sir Isaac Newton. He existed and that's a correct measurement of torque. Nanometres of torque maybe unit of measurement that etymologists use to describe the the amount of torque a grasshoppers legs produce or something like that?
@@DrewWithingtonDingleberry 😮
Truly weird to see such a sleek machine with the rear shock absorber mounted at side of the bike like a 1970s motorcycle ....... yet only 1 shock absorber is used .
When Ducatti makes the same thing its not weird?
truck absorbers..
Thought the narrator was about to drop bars like Harry Mack at first 😁
its ai
Yes nice bike, but the Honda NSR500 from around 1997 is the number 1, it has 400hp/liter (200hp 500cc 4-cyl, 2-stroke)
Whats that got to do with this video?
@@posniknelb6114 This video states that it is the most powerful NA engine in the world, and it's not. It is the NSR500.
Yamaha's 125cc 2T v4 had 80 ponies, so: no NSR500 isn't most powerful hp/l combo either.
@@laimonasmusauskas1153 Hehe my bad! If we include RC car nitro race-engines (3,5") I think we have even higher power there. I read something about 600-700hp/l
@@laimonasmusauskas1153What engine is that? What year?
I guess the weigh of the bike is the real benchmark here: 129,5 kg dry waight is nuts for a 220 hp bike.
Gorgeous machine 😍👍
rob dahm proves the rotary is still useful.
Reliability goes right out the window
Tell me if I’m wrong, aren’t Most race engines rebuilt after every race anyway
Drool city! Looks like an afterburner when she shoots flame. Hicky needs one of these.
I saw the JPS Norman's race at Brands Hatch they were unstoppable
Guy buys bike then 2 days later googles Crighton performance parts.
I am wondering if any one can buy the engine separately, and with a bit of fanageling put it in a kei car.
0:32, how cool is that.. you slip Indonesian infografis on your vid..
One produces HP, the other one produces horsepower, super leg era was probably the best era, and rotors have high power to weight ratios.
If rotor engine's where so amazing good they would be in every bike and car now!
Awesome video! Gained a sub
in fact, rotaries have a future in electric cars. Mazda built a new rotary as a generator for the eletric motors, to reduce battery size
Just found your channel, awesome work.
You should look into the Highland V twin dirt bike. Haven't seen anyone do a video looking into them. Thank you keep up the great work 👍
Wear resistant seals, excuse my skepticism.
Thanks for this - the perfect follow-up to your Norton Rotary video. I'd love to see Hicky on one for the TT. Interesting to see the motor uses an Oberon clutch slave cylinder - Oberon is only 30 minutes from me and I have one of their units on my Ducati.
Absolutely.. Such a shame it's not at the TT this year. Needs someone like Jim Ratcliffe to sponsor to achieve first Brit bike win for 30 years.
I had a 'Saki H1. Step the needles up one notch and ask tower for clearance to launch. 40mpg 500cc. Adrenaline rush! Very hard to ride in the rain. Not much ground clearance for turns, and driveline was way too weak. Dash off from a lot of would be racers... I think I topped it out around 140. I want another.
How about dimples on the rotor like dimpled pistons. Will that help.
that would be intetesting to have a go on 😊
Hey weirdbike, do you own the footage that you’re putting the watermarks on?
Nope.
Where can i buy one...
Is this can BRAP?
I am quite happy then with my 37-year-old TDR250 at 200hp per liter.
When I win the lottery it's on my shopping list along with a Suter MMX 500 and a TZ750
Guy martin loved riding the development bike
i'm already imagining daily driving it to groceries store, and going to work. Its so practical.
I really want to have a go on this bike!!
Nanometers of torque. wow.
How do you measure the capacity of a rotary? It’s simply not possible to compare them with normal reciprocating engines by capacity.
The Suter mmx has a 576cc 2 stroke v4 with 190 hp.. that makers it 329 hp/liter
is that priced 100k as well?
I thought it was a 320hp na engine. That would be absolutely mad
Per 1 liter
From 2025 all motorcycles in EU needs to fulfill Euro 5+ emissions, good luck passing those with this engine!
it's for Race only !
They mentioned it in the Video 😀
You wont own a car in 2030 if you let these regulations do as they please.
F c k euro codes
@@annakquinn7084 Yeah! Bring back ACID RAIN!
The thought cruzing a club track day on that makes me smile. Can i still get one?
Did they do something about the fuel efficiency of the rotary?
The old 500cc 2 stroke GP bikes made almost 200 HP, or close to 400HP / liter, normally aspirated.
Thanks,Felix Wankel
ROTOR MOTOR! ROTOR MOTOR!! ROTOR MOTOR!!!!!!🔥🔥
how is this the most powerful? end of 90's 500 gp bikes were pushing 200hp on 500cc thus 400 per litre,please explain
not to mention sutter mmx 500,you can buy one new alco 500cc and 200hp
Power of 2 stroke.
@robdom needs to check out the coting.
I understood that the suspensions were Bitubo because I saw the writing, but despite all my efforts, I still couldn't figure out which Ducati the video was referring to. The pronunciation is really too absurd for me.
Could they adapt the adjustable trumpet intake from the Mazda that won lemans ?
two stroke can have 200hp per 500cc
So funny that every time a combustion engine has huge claims it falls short of a 2 strokes real potential. When the oil burning stops, there will not be a blind eye to be seen.
@@nj2352 bann every sport, in that way it safes ships full of fuel and oil.
a couple of gallons of oil in moto gp does noet matter a thing, 4 strokes use oil and making all those parts is way more energy(fuel) and parts(polution)'
no two stroke is politics i gues,
a commercial thing, almost all road bikes a 4 stroke.
no expert here, but 2 stroke is the way to go for compitition , light, less parts, more cheap, watch moto gp 1990ish .
that sound is unforgettable, before big bang :) and way more agile than the modernn, indeed many hp 1000 4stroke
@@fendermarshallbluesbox3407 Next gen 2 strokes will have a closed crank and no smoke will been scene.
@@nj2352 with valves in the head you mean ? or a blower off some sort on the scavenge ports
with normal two stroke port ? i wonder how it works
@@fendermarshallbluesbox3407 There is or was a v twin development with an extra set of piston and ring with the transfer sandwiched in between the 2 halfs and it uses that arrangement in conjunction with the intake to throw the mixture into the opposite cylinder. It is funny you mention a blower, that is what the Detroit diesel 2 stroke used and thats where we got the 6-71 blowers from.
Even though 700cc sounds like a small amount, to be fair, you should count the impulse cycles per revolution which would put it closer to a 2.1 liter equivalent not 700cc. There are three combustion cycles per single rotation.
👍👍Now that's Bad Ass, Sit Down, Shut Up and Hang on, Let's Ride!!! 😂🤣
considering the old pictures and footage, i assume that it led to nowhere and we're not gonna see those bike on the streets any time soon
do they accept paypal?
Just a thought why not make a 1300 ?
Didnt the nsr 500 have over 400hp/litre?
Two guys vying for a position and there were made to look like they were stood still!!!!🤯🤣🤣🤣
*I approve...*
Where is the 1 rotor version of the engine sold on a box????????
1:56 “the electric future”
Those are doomsday words my friend.
3:38
i cracked up laughing
My only experience of the wankel engine is getting a lift from a mate once in a Mazda RX8.
I know it goes against all common sense to buy one, but man o man, it feels so much like riding a 2 stroke dirt bike.
I want one 😁
I like it.
What kind of sorcery is this? 😍
You know what this bikes about when guy martin says "thats fookin fast!" rumour has it he's got/ordered one.
Wow 600c pushing 200 + fun fun.
It would be awesome if they made a road bike
Me gustaría que ahora monten en la misma moto el motor Líquid Piston, también con dos rotores.
Now if only we could buff physics to give us more traction.
Hay England, can you please chill with the widowmaker bikes?
English engineer here.. No.. 😂 We love nuts machines
319hp per 1 liter.
My own bike is 650cc and 43hp. Would it be around 66hp per 1 liter? I own a speed machine, obviously.
Felix Wankel was ahead of his time.
If it ain't a rotor, it ain't a motor!
Thats newton meter not nano meter
Am I the online one that would love to see Crighton in MotoGP?
HP per litre for rotary is divided by three because there are three ignitions per revolution,
So its just over 100hp per litre not 300hp/l
319HP per liter and new engine every 10.000km?
Wow a whole 142 "nano meters" of torque huh?
NSR 500 2-stroke: 400hp per Litre.
I've heard various explanations and none hold up under the same scrutiny applied to any other engine for spring rotary engines to claim 1/3 of their actual displacement. If each cylinder face of the rotor displaces/moves 690cc of air per revolution through the engine and you have 3 cylinder faces per rotor that comes out to 1980cc of air displaced per revolution of the rotor. Making it a 2 liter engine not a 690cc one. If you applied the reasoning they do for displacement in a rotary to a reciprocating engine an ls400's engine would be 250cc not 4000cc.
Formula 1 engines are making 850bhp from 1.6 litre, over 1000bhp with the hybrid system.
Oh yeah? Neat. Now, how often do you need to replace the apex seals?
Rotaries have been beaten to death. Everyone knows they are light and powerful. They don't tend to be efficient or low maintenance. For every manufacturer to date, this has been a reason to NOT pursue them.
I didn't hear or see much about the Achilles' heel of this engine configuration. Good luck.
142 nanometers is pretty short, but Newton is getting a bit twisted
I have a 50cc Kreidler from the 70's that has 21HP. This equals 420 HP / Liter.
Husqvarna's 125 motocrosser has been 320 hp/litre forever.
That would be Newton metres (Nm) not nano metres which is a billionth of a metre....and for those who are going to complain, a meter is a gauge, metre is a unit of distance.
Using SI seems to be hard.
At least they didn't just said "torque - tq".
The 500cc GP racers of the day had more than 200hp. That equals >400 hp/liter.
The standard method of measuring rotary displacement is unrealistic. Rotaries actually have double the displacement listed, based on time/cycles, which is the only parallel with piston engines. The Mazda Wankel rotaries rated at 1.3L are only measuring one of the rotor faces or combustion chambers. 1 of 3. However, that doesn't even equate to one full stroke. Rotaries fire much slower than piston engines, but have 3 times the "cylinders".
1.3L=2.6L.
NSR 500 was 404 hp liter.
Can I get mine in a gokart?
2027 maybe he can see some of those on motogp because of new regulamentation they will drop to 850cc and to get the most out of it this seems a good option
In order to compare rotary engine displacement to 4-stroke piston engine displacement, you have to double the rotary engine's size. A rotary engine's displacement rating is effectively measured like that of a 2-stroke piston engine. That's why a 2.6L 4-rotor Mazda (12 combustion chambers) could compete directly along side a 6L V12 jaguar (787b vs XJR-15). Therefore a Mazda 1.3L 2-rotor at 9krpm is directly comparable to a 2.6L 4-storke V6 at 9k rpm (or a 2.6L 2-stroke V6 at 4.5krpm). As a 155hp/liter 3-cylinder 1.5L, this engine doesn't seem all that impressive, and definitely nowhere near F1. What IS impressive about rotaries in general, is their power-density. It's incredibly small for it's output. Something motorcycles can clearly benefit from.....if you can make it last.
Thank you for bringing this up, I was hoping someone would mention this, and I'm surprised the narrator didn't.
This is true but not totally accurate. The 1.3l stated for the Mazda engine is the engine's swept volume, but because a rotary uses all 3 sides of the rotor simultaneously (albeit at different stages of the 4 stroke cycle). This is similar to how a 2 stroke uses both sides of the piston, also making one power stroke per rotation of the eccentric shaft.