CRAZY Honda OVAL Piston Engine
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- čas přidán 20. 05. 2023
- Making it's debut in 1979, the oval piston engine incorporated eight valves, two connecting rods per cylinder, plus an aluminum semi-monococque frame complete with an inverted front fork.
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I love ambition, even if you fail, you have no regrets, not mentionning all the innovation that you possibly made along the way, while trying to solve problems.
That was the very mantra of Sochiro Honda. He was quoted as saying “What we learn through failure becomes a precious part of us, strengthening us in everything we do. So let the tough things make you tougher.” The original NR500, built to compete against the 500cc 2-strokes of the time, failed on almost every outing, but what the learnt kept them at the forefront of V4 (and even V5, in the case of the MotoGP RC211V) design for the next 40 years. Only now are the likes of Ducati and Aprillia just starting to catch up.
Great words my brother 😊
@@MrMairu555Great 👍 really
The piston is not oval shaped. The correct term is obround. Two semi circles connected by straight lines.
So the "Olympic Oval" and racetrack ovals are lies? What then, is an oval?
Still an oval, but not an ellipse.
We just called them racetrack pistons. They were the shape of a horse race track
The Apprentices were wondering how you'd hone the cylinders
I guess the hone might have been like an expanding bull dozer track type but it was cancelled before we found out
Honda back then sent a trade mag to it's dealers with the latest news on all there tech advances here in OZ
@Retired Bore No. It is OBROUND The two semi circles at the ends connected with straight lines can be clearly seen at time index :07 in the video. The voice over incorrectly describes it as a oval. If Honda described it as an oval (I think they did) they improperly), inaccurately, errantly named it.
@@keithal1478🤓🤓🤓
Unique and bold. Honda hats off to you 🙇🇮🇳
Still a cool concept- a super Hemi!!
I believe this was a response to the maximum four cylinder rule. They took a V8 and knocked the partition wall between them down!
I remember a Honda press release about the race bike at the time “We have only three problems at the moment, handling, performance and reliability”.
😂 thanks for this info
This Honda NR750was famous back then with the NSX car..
a great project for Alan Milyard to replicate
Lets hope he does 😂
To refine.
He'd make it five cylinder star engine. 😂
That dude is a genius and a craftsman.
Love to drink a beer with him, maybe even run some ideas by him.
😀
Wow. Fifty percent more cylinder bore and a lot less weight since one piston was doing the work of three in the space of two. Maybe if the cylinder was bored at an angle and the rods connected to counter rotating crankshafts.
The entire world knows this engine. And you are surprised?! You are bloody young?
Impressive ambition 👏 💪 👌 🙌 👍 😎
I've heard about it, I thought the purpose was to create a crazy large displacement engine for a racing category that allowed only 4 cylinder engines.
honda was trying to run with the two strokes .it cant be done so honda helped to ban the two stokes ...if you cant bet them just rule them out of the game
Well I just learnt something new for today! Not sure what to do with the information but there you have it! 😂
I remember my dad telling me about this when I was a kid... I swore they used it in one of their race cars too?
At the time the NR was referred as " nearly ready" as it never ran well for very long, just ask Mick Grant. They even ran Suzuki machines with Honda decals as the engine was NOT READY
Absolutely nuts 😳
i keep a scale model of a green NR750 on my desk! I was blown away when I found the model, cause of how rare the REAL bike even is. would be an absolute dream to see/ride let alone own one some day
Nice, keep that because even models grow more value as the years go on! The NR750 is a lot of $$$
After having reminisce for a minute, harkening back to the good old days of reading all the bike mags and the rest, IT flashed upon me that perhaps it was Honda's way of challenging the 500 2 strokes.?! Perhaps that was the direction they were going in, however, I think it would have been more fitting in the four-stroke category challenging comparable four cylinder 750s. Just my thoughts, welcome to feedback 🙄🧐🤔
My question is if they made an oval piston why didn’t they just make it a two valve engine but the valve was a larg oval with two stems to keep it from twisting.
I Freaken Love This Bike though i dont have this bike neither any bikes.
What if it was a bunch of circles like an Audi logo
Nope => you made a mistake => it had 130 hp but could be easily tuned up to 200 hp for a 750 cc at the time (even now) was mindblowing !
What's the problem with making the motherloving piston just bigger?
Were they trying to fit more cylinder area into a smaller block this way?
49cc rules! Lol
Lololol when you're a kid on a 50, NO CELL PHONE, 3.5 Miles from home, pocket full of reefer and proceeds from sale of said reefer, And plans with the hottest girl from school...
THATS FREEDOM. That's truly fuckn Freedom
Where the heck you going to get parts for it
Haha
demasiada fricción.
engineering back then: how do we make more power? oh I got it, let's do [batshit insane idea] and just see what happens and then put it in a chassis so light it might blow away in a stiff breeze! it'll be awesome!
engineering today: how do we make more power? oh I got it, let's take a 200cc I2 motor, add 17 turbos making 40 lb of boost, 10 cams per head with VVT of course and DI with no port injection, and finally put it in a compact economy car that weighs 5,500 lbs! genius, that'll be good for about 225 horsepower with 21 mpg and a 29,000 mi service life!
Alfa Romeo dude
'oval' piston rings just don't work. this is a piece of junk, but they'll never admit it. Never ever ready for sure.
qui in Emilia-Romagna vicino Rimini c'era una persona che l'aveva comprata funzionava benissimo e andava anche molto forte non si è mai rotta, gli è caduta, il problema erano le carene in carbonio che le ha dovute far fare piuttosto che comprarle nuove perché costavano una follia
NR 750 two-stroke carbon fiber shifter! 💞💞
23K RPM?
Theorically