[2stroke] Ryger engine

Is there any need to shoot at a dead body

they tried and unfortunately they failed , it's plenty enough i think

which doesn't mean the idea was bad  or the people involved stupid , it just mean  they didn't make it , that's only it ......


the lesson here is , alone we are not much , or nothing  


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I do not see it as shooting a dead body, more as an autopsy to determine the cause of death. Sharing what was done and what did not work as anticipated might spark a solution somewhere. But while nothing is shared we can only speculate. An yes, some people seem only interested in saying "I told you so".

Anyone with even a little bit of 2-stroke and mechanical knowledge could  immediately understand
That 70 HP and 30.000 rpm were impossible...… Ridiculous!

Jan, Absolutely agree! But, there might be merit in the idea to clean up the emissions of the daily transport, and that will now be lost.

I think maybe making a kart engine was a big mistake...…
A stationary low performance engine might have been a auccess!!!
That could still be tried.

Lotus worked about Lowen émissions on 2 Steiner engines.
They added a rotary valve for thé exhaust port which désynchronised thé closing.

It was not my intention "to shoot a dead body". After quite a while, I returned to this forum to follow this thread:

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And then somehow I remembered the Ryger engine and decided to check the situation.

I wanted to give some information about the timing. In The Netherlands, the process of bankruptcy takes a long time. If Ryger Kartmotor BV was liquidated in November 2017, then that means that they had been going down for a long time before that.

Jan Thiel a écrit:

I think maybe making a kart engine was a big mistake...…
A stationary low performance engine might have been a auccess!!!
That could still be tried.

2T technology is no longer viable as a large-scale technology for automotive (motorcycle, scooter) purposes, even in "developing" markets all new models are 4T. Even small generators are all 4T nowadays, in fact, even chain saws and weed cutters are now 4T or electric.

As a small (startup) business, if you want to make money on any internal combustion engine, you must operate in that part of the market where emission regulations do not apply, and where reliability and lifetime are not (very) important. If you have a small workshop (start up company), you can build engines quite easily, but to build engines with sufficient lifetime, reliability, and emission standards is very different, let alone that you can do that for a competitive price. You cannot compete with the big players. Thus the only option is to limit yourself to that part of the market where customers are willing to pay a premium for performance, where reliability and lifetime are not first priority, and where emission standards do not apply.

It is my dream to make my own 500 CC V-4 2T motorcycle engine, like the people who are building the YZR500 engine on this forum. If you can build one such engine, you can also build many such engines. However, such an engine will never meet any emission standard, and thus you cannot get create any road-legal motorcycle, and that means that you are limited to the very small market of people who are willing and able to buy a high-performance motorcycle which can only be used on a racetrack. That is to say, you cannot even show off such a motorcycle when cruising on the boulevard on Saturday evening..... I have done the calculations..... the price of a Suter MMX is actually quite cheap, taking into consideration what it costs to build even one engine.

2T in F1 in future?

Vannik a écrit:

2T in F1 in future?

I think two-strokes would be dominating Formula 1 right now if there hadn't been a rule saying that they are not welcome. But perhaps things are going to change: [Vous devez être inscrit et connecté pour voir ce lien]

"Formula 1’s project to become carbon neutral in 2030."

What can we say.....

Hurra!

There are rumours in Holland about the death of Hendrik Gerrits, the 'inventor' of the RYGER engine.
Can anyone confirm this?

The 2 stroke is still being produced and developed in snowmobiles by 3 big manufactures (Polaris, Ski-doo, and Arctic Cat). 4 strokes are be coming more popular, but there still is a huge market for 2 strokes.

levi1717 a écrit:

The 2 stroke is still being produced and developed in snowmobiles by 3 big manufactures (Polaris, Ski-doo, and Arctic Cat). 4 strokes are be coming more popular, but there still is a huge market for 2 strokes.

There is much more than the snowmobiles.    In the Enduro world,  the shift towards returning to 2 stroke is impressive.     When you look to the top competitors in the  'Hard Enduro'  championship,  more then 3 on 4 are riding on a two stroke.    Graham Jarvis,  David Knight,  Billy Bolt etc etc... [Vous devez être inscrit et connecté pour voir ce lien]
And in Europe,  the market for enduro motorcycles is much larger then the motocross world where 4 stroke is still reigning due to the choice of the sanctioning boddy.  The market is several thousands of bikes per year.    In fact KTM is producing more 250-300 2 strokes then 450 4 strokes per year.  

Without a two stroke revival,  the japanese would have eaten every little constructor of motorcycles by now.    Now in the market of 2021,  big players like KTM are thriving by playing on 2 stroke as well as 4 stroke and the little constructors like Sherco,  Beta or TM are cutting their share of the market.    

The japanese 4 are being fxxxxxd  while only Yamaha is doing a   (little...)  effort to keep their 2 stroke legacy yz 250 engine from 1996 alive.

Where is this Ryger engine you are all worshiping has any one put it in a bike 70hp out of a 30mm carb and reed feeded 30000 rpm engine, i didnt know reeds worked at that RPM, sounds better than sex , it must be real as ive seen some big names stand behind the data on this forum . I have looked at the patent papers  but when i looked at the Fia Homogolation karting papers it looks nothing like the patent papers more like april 1st joke what am i missing here come on spill the beans :-(


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it was made of fantasy beans