If you want to state an opinion about the announcement of the NEW JP Class, can you please feel free to do so elsewhere in the "Junior Performance" string in the general discussion section.
If you actually know something factual that will help us, as parents of Juniors yet to step up to a performance class, here is a great place to contribute.
You may like to assume many of us have a background in J's and Comers, so even some basic information on what to look at when considering which TAG125R engine. (eg. Do any choices have a tunable carby and, and if so would this be an advantage?).
Input is also required here for some facts about if or how this class is to run at club through to championship levels. (eg. Is this just a Club day class to give bigger fields and the existing series or titles will remain the same?).
Looking forward to your input,
Tim.
If you actually know something factual that will help us, as parents of Juniors yet to step up to a performance class, here is a great place to contribute.
You may like to assume many of us have a background in J's and Comers, so even some basic information on what to look at when considering which TAG125R engine. (eg. Do any choices have a tunable carby and, and if so would this be an advantage?).
Input is also required here for some facts about if or how this class is to run at club through to championship levels. (eg. Is this just a Club day class to give bigger fields and the existing series or titles will remain the same?).
Looking forward to your input,
Tim.
Views: 108
Comments12
If from everthing ive heard and read it will be all the motors currently usable in tag eg. Fireball, leopard, X30, rotax & billand.
As for tunable carpies, they all are in the case of the fireball, leopard and X30 are tunable in race, but rotax due to using a motorcycle carby can only be tuned when stopped and with the carby removed. As for weights or formula facts well thats any ones guess.
Cheers Shane
Im not actually currently racing , returning next year, having been out of the sport for a few years but from what ive heard read and seen, i believe the Fireball or the leopard or X30 are the way to go to unless your realy experienced with rotax. I used to race rotax and they can be a bit troublesome at times to get the jetting right. When i return to racing next year ill be getting the X30 as it combines the reliability of the leopard but the smoothness of the rotax.
Another way to look at it if you get the rotax, lepoard or X30 when your junior becomes a senior he will have the choice of two classes tag open and rotax or Leopard/X30 series
Cheers Shane
Tim
It really is too early for any useful comment but from what I understand
All the current TAG 125 Restricted engines can be used as well as existing JC engines
Rotax 125 Max and JMax both thave fixed jet carbies all others are tuneable similar to J and Comer
Which is better WILL really come down to personal preferance
Current Rotax users enjoy not having to tune on the run and being able to concentrate on driving (it really depends on how switched on your Junior is)
Power wise they seem to have the restrictors fairly sorted but again they were done for seniors using several top drivers on 3 different circuits (I think that correct)
You will hear all sorts of rumours about different engines being better for different tracks but at this stage that is all it is as it is not proven for juniors
I see an advantage in JMax in that the Promoter (IKD) will continue to run their Jmax Series OR you could run Junior Performance by adding the restrictor
Parity would be easy to adjust if necessary with minor restrictor changes
Im not sure how the ARC W will stack up but from what I understand all will run on Reds at the same weight
I hope to back to back ArcW and JMax Restricted soon but it will be on our track and probably in fairly cool conditions
While I am excited about the class as with all invations there could be some "testing periods"
We all saw that in Midgets not soo long ago
Your best indicator is who are you going to be able to run against at the venues you race at - and none of us know that yet
From what I understand at this point (next 12 months) it is not a titles class
Obviously if it takes off as anticipated then it would be posibly the following year
As JC is currently a Titles Class one would imagine it stays so untill replaced by something else and as Arc W has been given till the end of 2011 that sounds like a deadline to me
If as you asked the Junior Performance takes off say the following year then I would expect Arc W would be able to compete till end 2011 the aircooleds Im not sure but we may find Parity issues takes them out by drivers choice
The 18 month deadline from what I understand allows Current (or many of them) JC drivers to finish out their term with the equipment they have before moving into seniors
To be able to predict which classes will be offered where is a blind stab as we have seen different areas / clubs have different prefrences ( even in senior racing)
We are strong in Rotax and 3 clubs over the border (within a couple of hours of us only have a few
TAG 125 R has taken off in some areas and not in others - that is always a difficult one
Mal Crosher said:Biland in juniors...bullshit? really?
GDay Mal
While a friend owns a Biland and I have see one running at Butterfly Farm I havent had much experience with them locally so hadnt considered them
Is there a reason for your comment? other than they havent for whatever reason made it to the "top of the charts " in driver preference
Ernie
Mal Crosher said:What's stopping a parent removing a restrictor in free practice for an attempt to gain some sort of edge.
If they crash and injure themselves or someone else, and found to have run the engine contrary to the class rules, (a) insurance will not cover them (b) licence likely to be revoked (c) risk of legal action from anyone hurt by this person's actions... etc etc.
Besides, what's stopping someone doing the same with a J on a rookie's kart?
The Biland isnt in Rtag so i dont think it will be eligible for JP. I doubt it would react to well to being exaust restricted anyway as the back pressure would keep the exaust valves open a bit
I would expect that to remain the same as JC where there is a weight benefit for air cool but as testing was done to bring 125 R to clubbie type performance you would expect all watercooled to be the same - initially anyway
It is early days and a mixed engine class so one could logically expect some parity adjustments if necessary and experience demonstrates that is either done by restrictor size or weight adjustment otherwise it will by default go back to single engine class with manufacturers working hard to make sure it is their engine that is the strongest
Josh Walker said:The Biland isnt in Rtag so i dont think it will be eligible for JP. I doubt it would react to well to being exaust restricted anyway as the back pressure would keep the exaust valves open a bit
There were comments made that the Rotax Max would not work well as a TAG R as its power valve IS operated on back pressure but that certainly didnt make much difference in reality and I guess restrictor testing takes those sorts of things into account
eptember 13, 2009 at 23:20
All 125 engines will run at 160kgs , arc water cooled at 140 kgs & yamaha kt100s at 135kgs - these weights will be adjusted until parity is found
Ernie Meznar (Willow Vale - Mez) said:Josh Walker said:The Biland isnt in Rtag so i dont think it will be eligible for JP. I doubt it would react to well to being exaust restricted anyway as the back pressure would keep the exaust valves open a bit
There were comments made that the Rotax Max would not work well as a TAG R as its power valve IS operated on back pressure but that certainly didnt make much difference in reality and I guess restrictor testing takes those sorts of things into account
robert steven pratt said:All 125 engines will run at 160kgs , arc water cooled at 140 kgs & yamaha kt100s at 135kgs - these weights will be adjusted until parity is foundblockquote>
That's interesting - how does a 20kg penalty work if the restrictors were supposed to have been tested to make them the same laptime as a Clubbie?
Senior Tag/R Light is at 160kg, and the restricted tests were made to be similar to CL @ 140kg. If you used the same size restrictor in Juniors but at 145kg, they would have at least half a second advantage over the 'S' and ARC.
So they either have to run the same weight as Senior, or do more restrictor testing.