Konny and Konig engines

[RARING TO GO]

Two under a glass top coffee table would be a nice conversation item.

[Eddy Wright]

Ian they are a thing of beauty.

Dave's chassis just looks so low. I had forgotten how purposeful they look

[steve-e]

it's a bit higher with wheels on Ed, don't panic

[RARING TO GO]

Tony, this thread is going to rumble on into the New Year.
Michel,the figures & stats that you have quoted that have come from Rixyracing contradict all known science of comparisons of Petrol verses Alcohol, in this case Methanol.
Start with Air/Fuel ratio by weight, the ideal ratio for Petrol is 14.7 to 1, the ideal ratio for Methanol is 6.44 to 1, therefore,
you have to get more that double the volume of methanol into the combustion area to achieve any worthwhile comparison of Petrol verses Methanol. So using the same size main jet is a big no no.
The other bug which comes into play is compression ratio, if a Petrol engine is running a compression ratio of 10 to 1, then a Methanol engine will need to run a compression ratio of 13 to 1, plus double the volume of fuel to achieve a greater power output than the Petrol engine.
Typically, using a TEST 500cc engine, the engine run on Petrol with a 10 to 1 compression ratio with an Air/ Fuel ratio of 14.7 to 1
will produce roughly 49 BHP, whereas the TEST engine run on Methanol with a compression ratio 13 to 1 with an Air/Fuel of 6.44 to 1 ( double that of Petrol ) will produce roughly 54 BHP. These figures are from a TEST ENGINE, not any specific engine.
The source of this information is RICARDO, please tell me Michel that Rixyracing have heard of Ricardo?

As I said earlier, the proof of the pudding will be when someone from joe public sticks one of these engines on a Dyno & gets a reliable power output figure. Till then it's all conjecture especially the way that you are trying to justify Konnys claimed power output.
Good luck to Konny & anyone who puts their engines in Sidecars or Solo's, personally I'd give then Special Dispensation to race at Classic Meetings because if I were a rider within Classic Races I wouldn't be intimidated by their Power output claims, they will be quick.

So what you are saying is there was no world record at Windemere with a Konny, or it was a sham?

[Eddy Wright]

Steve you should be on the Telly x

[steve-e]

Michel calm ian is saying exactly what he typed, not i think how you have interpreted it

What is different to the engine all those years ago that makes more power? If its the same bore and stroke it won't rev much higher will it without much lighter internals, it's still ported the same way - with the port timing and sizes different but still mechanically the same.
I'm interested to know where the advances are.
I remember being amazed with the GPZ900r when it had over 100bhp, Bruvs BMW is now around 190, don't know how and its tiny in comparison.

I've read the thread through a couple of times now and got lost in it trying to see what's changed, apart from it being shiny

[RARING TO GO]

Steve point taken.

[mark75]

Hi all....it has been really interresting following this thread...

First I would like to point out that I actually like the Konig engine its a really nice looking and for being twostroke even sounding engine , that much I actually bought one (original 5 port I should say).

And however good looking these new ones are, in my eyes they show obvious signs on the outside on some really enhanced porting having 7 ports and from what I can see changed castings for booster ports.

But I cant stop thinking that maybe just maybe these 7 port ones are more fun racing against outfits of the era TZ Yamahas either 5 port 750:s or the often converted 6 port 700:s re, or other equivalent engines of the era that follows the classic one where Triumphs,BMW,Norton and Imps etc are being raced.
Or am I completely wrong here..?
Just some thoughts...

[tonybsa2008]

Mark,please put it in a chassis,and come race with us!People want to see these bikes in action.

[RARING TO GO]

MARK75 Sorry the Konny Konig is a 5 port my mistake earlier,

[ianw]

Someone should build a chassis like this for a Konny engine, Rudi Kurth, 1968, 44 years ago!
sidecar chassis haven't moved on much.
http://www.eurospares.com/rdk2a.jpg
http://www.eurospares.com/rdk2a.jpg

[Eddy Wright]

Neither has the design of the passenger.

[ianw]

Got to disagree Eddy, the design of passengers has changed, back then this is what you got-

[Eddy Wright]

That was the point I was making

[Foxy57]

Mascara, hands on hips!.... Yeah I reckon I could convince Roily to go for that! After all I do keep catching him trying to sneak into the ladies showers