Mike wrote:Hi Mikko. I do not wish to pre-suppose Alex but from my point of view, the proposal to use the older cylinders was more from the point of view where there is a class for older engines and not trying to imply that the new engines are more powerful.
Sorry I didn't assume that the post was implying that either, I was simply questioning the intention of having only older cylinders for novices. What happens to a novice that has bought a used P6 engine and then shows up at a race meeting and is told he has to buy a P5 or P3 cylinder to race in the novice category? What then happens if he can't find a suitable suze cylinder of the suitable age to put on his engine? If someone buys a 4-year old used engine they are likely going to have to rebuild it to be competitive, which could make everything on the engine the same spec as a new engine except for the cylinder. I feel that it would only give the perception that they aren't being beaten by fresher engines rather than any real advantage by making a certain-age cylinder a must.
An alternative (not necessarily better) control to give the Novices less chance of being outspent in my opinion would be for example making the tyre regs only 1 set of tyres for the race meeting including free practice (no need to put brand spankers on for qual and buy another set of rims). Or how about limiting the engine maximum to only 1 engine for novices (not two) - and the Rotax importer could make available 1-2 spare engines that can be used in case of a failure during a race meeting.
I wonder if there could be enough novices to make and sustain a new category? I guess it all depends on how many entries would be received if there was a novice category but they would most likely be put in with the others but perhaps with a "rookie" mark in the championship standings? We've seen that novices can be just as good as the experienced drivers sometimes. A good idea if run together might be to award the winner of the novice category at each round with a trophy and then a "rookie of the year trophy" at the end of the series?
Another option for a novice cost-control would be to enforce for example a 3-race no cutting off your seal rule if the Rotax seal is used - no opening your engine after every race to put in a new ring etc.. can be controlled so that if there is a problem a Rotax center can check the engine and replace only what is necessary to fix the problem...
Additionally another thing that is a possibility and is done in Australia for a budget racer category at slower-than-rotax max speeds there are senior categories at senior weights but using Junior engines. I don't think there are enough drivers around to support such a category either though;)
I'll bet I can find at least 10 mechanics and fathers who would be willing to argue this point with you.
And how many of those ten have done back-to-back testing with several different cylinders of the same bore (on the same engine, setting the squish the same, on the same day, at the same track)? In karting assumptions easily turn into fact

. You might be surprised what 'P'-cylinders some of the top drivers were running this year.
In racing everyone seems to want new engines and this class may also create a demand for older engines which in turn can mean a lower entry cost into karting and healthy sales of new engines for the importer.
That's true although old engines are still always there for a lower entry cost. Used engines seem to sell like hot-cakes already btw.

I really see your point on the weights. In the AKOC series, they have come up with a formula and lets try it for the season first. I have seen ROKs set fastest times during qualifying and Rotaxes winning heats. If it is not equitable, change it for the next season.
In AKOC it doesn't matter a lot if the weights are "correct" because the categories are scored separately - AKOC is effectively 3 categories that are run on the same grid, rather than one category with different engines. Weights shoudl also to be suited to the tracks the series will run at and even more importantly they have to be suited to the tyres used.
Maybe the use of the term, Open Class, was confusing, I believe that it was open to whatever 125cc engine type, not open to modifications. Whatever the engine they should still comply to standard manufacturers specifications.
Definitely, but also "open to whatever 125cc engine type" is too open imo. There is simply no way for the club to know what is "stock standard" on an engine if they don't get a few samples to measure and the spec sheets as well as templates for scrutineering, so allowing anyone to show up with any 125 engine won't work and because you can't set a weight for an engine that you have no idea about.
Both the Thailand TAG and USA TAG require the assistance of the engine importers to make the series a success from benchmarking to setting the regulations for the engine to supplying templates for scrutineering etc. If there isn't proper assistance from importers that wish to have their engines in the series and the engines are allowed in (say Comer 125s, KF-engines, ROKs such as Super and TT) the series then it is effectively an open (modifications) category because scrutineering won't be any good.
Mike do you feel it might be a good idea to have some sort of "homologation" procedure similar to TAG-USA for the club to follow in allowing engines into their series? I'm personally more interested in seeing a multi-engine category with tightly controlled regulations and weights where all engines are part of only one category - first because most engines will probably have only 2-5 drivers which would make it a bit insignificant to be "champion" and second because it will make the races a lot more exiting because you know they are actually racing each other rather than just being annoyed that a kart from another category is bothering them

. I don't know if most feel the same way though.
Thailand SuperKart regs for example have:
"Engines from all kinds of brand must remain Standard from factory. The company who sold the engine must bring the engine along with its detail and will be given to R.A.A.T for inspections."
Side-question: has anyone with a KF2 engine tried their engine in KF4-spec? (basically put on a KF3-RPM limiter (14,000), and an ROK-type carburetor - a 30mm float carb) - that sounds like an engine that could be raced with a Rotax on fairly even weights if KF drivers don't want to run ~10+ kg heavier.
I'm seeing some great ideas from this thread, will be interesting to see if KKS feels any of the ideas could be implemented. As Alex said it's probably time to set a meeting with KKS for some discussions to find out how they feel since the members seem to have a lot of ideas? Probably more focused for next year rather than this year unless they are willing to make changes at short notice.
edit: damn I'm happy I can type fast that was one long post.
