Oddball engines and prototypes

[WilDun]

Not just the bad guys* - https://www.liquidpiston.com


*depending of course who you support but AFAIK these are not being used to target civilians

Yes well, we also have heard all the official replies from people in high places (from everywhere in the world) to controversial incidents such as these (the official replies usually go something like this :- "I seen no evidence to suggest that this is happening" - thus keeping the controversy going and buying time to destroy as much as possible (including people and their lives) - no regard or pity for anyone - none so blind as those who will not see!

Most people world wide, are ordinary decent people and we all love to see these engines being developed and want to see them succeed, they give us pleasure!
However, when a war comes along, all our endeavours are totally ignored, destroyed and of no consequence anymore (although still used for something evil)
It doesn't matter to those "dumb warriors" - they don't care who or what they are hitting and they don't care what or whose technology they are using to do so!

What an end to something good! - but then, mankind has been doing this forever (ie ever since we came into existence). - we were lucky and privileged to have been given a little window to pursue our own hobbies! - it hasn't always been like that!

I feel we are all pawns in the hands of just a few megalomaniacs!

[katinas]

[/COLOR]

....... we were lucky and privileged to have been given a little window to pursue our own hobbies! - it hasn't always been like that!......

Yes, absolutely agree. But we still have time, before the global confrontation between democracy and autocracy and new cold war will begin throughout the 21st century. The war in Ukraine may be just a prelude.

After using two-strokes for military drones, I wouldn't be surprised if we will see more horrible kamikaze drones with "echo" of V 1 pulsating engines in the near future. They can be cheaper and maybe lighter.
Add pdf "Valveless Pulsejet Engine" https://digitalcommons.calpoly.edu/c...context=aerosp "The Kadenacy Effect was first discovered by the Dutch physical scientist Christiaan Huygens in the 1600s, but got its name from the physicist Michael Kadenacy who studied it in the 1930s. He found when studying two stroke
engines that the momentum of the exhaust gases leaving the cylinder will assist in the suction of fresh air into that
same cylinder."


https://en.wikipedia.org/wiki/Kawanishi_Maru_Ka10
https://www.bbc.com/news/world-middle-east-55229443
https://www.thedrive.com/the-war-zon...azi-buzz-bombs

So, return to my unfinished NS 250, with the cylinders from the very first Honda RS 250cc 1984 racer.

[husaberg]

Yes, absolutely agree. But we still have time, before the global confrontation between democracy and autocracy and new cold war will begin throughout the 21st century. The war in Ukraine may be just a prelude.

After using two-strokes for military drones, I wouldn't be surprised if we will see more horrible kamikaze drones with "echo" of V 1 pulsating engines in the near future. They can be cheaper and maybe lighter.
Add pdf "Valveless Pulsejet Engine" https://digitalcommons.calpoly.edu/c...context=aerosp "The Kadenacy Effect was first discovered by the Dutch physical scientist Christiaan Huygens in the 1600s, but got its name from the physicist Michael Kadenacy who studied it in the 1930s. He found when studying two stroke
engines that the momentum of the exhaust gases leaving the cylinder will assist in the suction of fresh air into that
same cylinder."


https://en.wikipedia.org/wiki/Kawanishi_Maru_Ka10
https://www.bbc.com/news/world-middle-east-55229443
https://www.thedrive.com/the-war-zon...azi-buzz-bombs

So, return to my unfinished NS 250, with the cylinders from the very first Honda RS 250cc 1984 racer.

Is that a "Shorty PWK"of a Kawasaki KX or similar?
Tips his hat, your stuff is always so clean

[katinas]

Yes, one Keihin from YZ 250 03', second from RM 250 06'. Main difference between them, is position of PJ spraying tube. On YZ horizontal, RM slightly angled. I will try to adapt them to E85 , like before with Mikuni TMX. Very good results with E85.

But more interesting things, Husa. Finally, I accidentally found the most rarest and mysterious engine. I really knew it existed, but only found it now .
Kawasaki 250 cc racer (1989 code 009B, 1990 code 009C with double type KIPS ), from returning to GP program. Yes they used same intake concept like Honda, but cylinders banked at 75 degrees, like Honda started to use on NSR 250 two years later in 1992. Was only used in All Japaneses Championship, two years without better results. In 1991 they made radical upside down 250 cc X9, but this engine is well documented.

[husaberg]

That Kawasaki is very Honda looking right down to the sideways reeds.
Very detailed and neat clutch cover castings.
Very cool find

[Grumph]

The external positive stop mechanism is amusing. Similar system as used on a lot of Kawasakis - but they're usually indoors where they can be lubricated.
Spring loaded sliding plates, don't think they'd keep working well in a wet race. High maintenance.

[husaberg]

I never looked at the other side
Its got a shit ton of webbing everywhere on the casings
Plus that clutch is as wide as the rest of the engine.

[katinas]

More pictures and with the bike, maybe someone will recognize who is on 76?

[husaberg]

More pictures and with the bike, maybe someone will recognize who is on 76?

AMA suggest a yank? he looks a little bit eddie lawson?

[F5 Dave]

Could be me from that picture. But it's not. (I'm the guy in the disco white pants).

[husaberg]

Could be me from that picture. But it's not. (I'm the guy in the disco white pants).

Well its not eddie as it 89 and 90....whoops
Doug Chandler?

[F5 Dave]

Actually I made a mistake too. That's not me in the white slacks.

I'm the three other guys in green overalls.

[husaberg]

Useless fact about AMA sticker in that era.
After this race 1990 Daytona Team Marlboro/Roberts withdrew from the AMA series in a dispute over placing a series sticker on the bike
Rich Oliver ended up racing the WERA Formula USA Series for the next couple of seasons as a result.

[katinas]

Sorry, just noticed now that 76 photo is later version 1991 1992, with upside down engine X 09. Dave, if your real name Trevor Crookes, it's you.
Trevor Crookes finished Daytona in 6 place, after very bad start. Kirk Hoeppner was AMA Kawasaki racer 89/90 in 250 class, but maybe on production KR 1.
Both engines V75 and upside down V90 had very low mid range, especially early V 75, that was main reason for poor results in 1989 1990 All Japanese Championship.

Very interesting article, but this is about V 90 upside down version. https://www.facebook.com/groups/1423...6543004244995/

[husaberg]

Sorry, just noticed now that 76 photo is later version 1991 1992, with upside down engine X 09. Dave, if your real name Trevor Crookes, it's you.
Trevor Crookes finished Daytona in 6 place, after very bad start. Kirk Hoeppner was AMA Kawasaki racer 89/90 in 250 class, but maybe on production KR 1.
Both engines V75 and upside down V90 had very low mid range, especially early V 75, that was main reason for poor results in 1989 1990 All Japanese Championship.

Very interesting article, but this is about V 90 upside down version. https://www.facebook.com/groups/1423...6543004244995/

Re Kirk Hoeppner
You could ask him about it

https://www.facebook.com/people/Kirk...briJpAm8sGRvl/

found vis this
https://www.facebook.com/RiderFiles/...457901/?type=3