ESE's works engine tuner

[breezy]

Not exactly the reaction I was going for, maybe should have thought about it a litlle bit more, lol. Lets call it a brainfart then

Anyways, something like this, not to scale and all that.

how about some kind of fluid damping within a link between conrod and piston taking all the major combustion hammering and smoothing it out.?

[jasonu]

Fellers,
Just thought I’d get my mind clear on the Ryger features that we know of:


Anything missing or wrong?

Rings don't touch the piston.

[Frits Overmars]

If we shorten the piston skirt on exhaust side enough to connect crankcase with exhaust so it will open and close like piston-ported intake, then with right timing the blow-down pressure erupting from opening exhaust port will enter crankcase and boost its pressure

Vítejte ZdenekK.
Shortening the underside of the piston so that the exhaust duct and the volume under the piston are connected when the piston is at Top Dead Center, has indeed been done before. But at TDC the pressure in the exhaust duct is lower than the pressure under the piston, so there will not be any boosting.

if the engine rev high enough, so the returning positive wave from exhaust would be otherwise too late to push escaping mixture back to cylinder, it will push it thru just opened "port" under the piston to crankcase.

That would require that this under-piston connection opens right after exhaust port closure. It would be open during maybe 140°; any pressure-rise would have leaked out again by the time the transfers open. It would also mess up the induction phase: instead of inhaling through the carburettor, the engine would inhale exhaust gas...

[polinizei]

Rings don't touch the piston.

Small Tube between crankcase and reed housing.

Container with some sensors, filter on top and tube on bottom.


Ryger Homologation
http://www.cikfia.com/fileadmin/cont...l-2016_Web.pdf

[wobbly]

IEFs sketch once again has a "normal " con rod shown - and once again I remind everyone that this will simply destroy itself at 30K.
The Ryger Homologation I posted the day it was issued - that is simply a list of the applications that have been received to be considered,its
NOT in any way confirmation that the engine has been accepted by the CIK - yet.

[adegnes]

Meanwhile in Norway...

[TZ350]

For those of you that don't know, Av is 2015 European Woman's Cup winner. Stunning result.

Latest email from Av. for those that don't know her, Av started her road racing carer in Buckets. And when ever she is back here she likes to come down to Mt Wellington for a scoot around and generally show the boys how its done.


Hi everyone,

After a long, but successful season I'm sad to say that the 2015 European Junior Cup has eventually come to an end after the final round of the championship was held in Magny Cours, France, this past weekend. I am now in the UK ready to fly home after a rapid weekend and a drive from France. Sorry for the delay in sending this out but it's been a busy few days!

The cold autumn weather was well set in just south of Paris right from set up day at the track on Thursday and the chill definitely persisted throughout the weekend. I managed to get a track walk in before the weekend got under-way, with Australian stock 600 rider Lachlan Epis and also World Superbike racer Leon Camier who was super helpful in giving some hints about this difficult circuit I had never seen before. We also managed to get a small issue with my bike fixed from Jerez so I was feeling ready to attack the challenging weekend ahead.

Friday practice went as expected; I took it easy to come to grips with the circuit and it's fast, flowing chicanes. In the first qualifying on Friday afternoon I ended up in 22nd position which was a good start, but I was looking forward to improving on that during the second qualifying on Saturday.

Despite very cloudy, drizzly weather in the second qualifying session I managed to improve my time by 0.4 seconds, before half way through the 30 minute session it started to rain heavy enough that we all pulled into the pits. I was happy with my improvement but unfortunately two other riders improved more and I was knocked back to 24th from 31 starters on the EJC grid for the race on Sunday. I certainly wasn't happy with this. Many of the riders had been testing here in the weeks previous and it clearly showed. I knew I had a lot of work to do on Sunday to be back up where I should be!


​
It lightened me up to see the FIM Stock 600cc race on Saturday afternoon where my partner Jake finished in a fantastic 12th position and fellow kiwi Al Hoogenboezem ended up 20th, despite wet and incredibly slippery track conditions. There were many crashes so both guys did well just to stay upright! Seeing those conditions, I was relieved it wasn't my race and had my fingers crossed for fine weather on Sunday!

Race day saw an improvement in the weather although the track took a while to dry from rain overnight and the first Superbike and Supersport race were held on a wet circuit. Thanks to the help of Jake and mechanic James Hoogenboezem everything went well leading up to the race and I was confident my bike was ready to do the business. Unfortunately at the start of my race I made two mistakes on the first lap which saw me drop back to last position briefly. This left even more work to do for the remaining 9 laps! I managed to find a nice pace, which saw me go faster than in qualifying for the first time this year, and passed all the girls to still win the Women's Cup part of the race. I ended up 19th overall too which wasn't so bad. I also learnt a lot about my own riding and my race strategy which is mega important - you can never lose, just learn.

After the race and podium ceremonies, EJC overall winner Javi Orellana and I were rushed onto the front straight for a photo of all the World Superbike winners. What an honour it was to line up alongside Jonathan Rea and Kenan Sofoglu! This was the moment it all set in for me, and that I realised the fact that it was history being made as I was the first ever female to be in this line up. It was an incredibly proud moment.



We also had a FIM prize-giving Ceremony that evening, where I was officially awarded with my FIM medal and trophy for the series win.



I cannot say thank you enough to all of you amazing people for making this possible!! There are so many factors that make it difficult for a kiwi to compete in this sport internationally, but money is probably the biggest hurdle. Each of you helping me just that little bit is what has made this possible. I know areas which I can certainly improve on but I also know I gave most of it my absolute best and came away achieving the goal of winning the Women's Cup. If I get the chance again, I know what I need to do to run at the front of the championship with the boys and I would really like to make that a reality but we'll see what the future brings. For now all I can say is thank you for joining me on this extraordinary journey in 2015! I look forward to meeting as many of you as possible in NZ and Australasia over the coming months.

Kind regards,
Avalon #21

[seattle smitty]

Ken Seeber, on your list you have "spacer plate," but I believe Frits has also called it a "spacer/valve-plate," which would seem an important distinction.

And as an additional line, you could add "HCCI ignition/combustion," IF I'm making a valid inference.

[monkeyfumi]

Wobbly, I understand that part of the CIK homologation is a fixed straight line ignition, but is there anything that stipulates what advance this is at?

I.e are they all at (lets say) 15 deg before TDC?

[Frits Overmars]

Wobbly, I understand that part of the CIK homologation is a fixed straight line ignition, but is there anything that stipulates what advance this is at? I.e are they all at (lets say) 15 deg before TDC?

The ignition is not allowed to vary more than 3° over the entire rpm range, but how you want to set it, is up to you.

[wobbly]

Frits is right, the latest homologation of the PVL has a couple of very slight downward "steps " at set rpms.
This is within the CIK rules and of course all the later engines with this newer homologation ignition have this very slight retarding function.
It allows a slight increase in static timing, giving a little better mid power,or can be used to give a little better overev.
Where the static timing is set is entirely free choice.

[monkeyfumi]

Thanks for the replies.

From what I can gather, the Ryger fires quite close to TDC, and I was just wondering how the rules might affect that.

[RomeuPT]

Hello again.

Sorry if this question was posted before, I didn't saw it...

Frits how much time do you think it will take for the patent to be aproved and the final disclosure comes out?

Can't fit on my mind how a 90mm rod will survive so much rpm with a normal rotating cranckshaft.

[peewee]

Rings don't touch the piston.

is there even any rings ?

[mr bucketracer]

is there even any rings ?

wife wont me happy if not (-;