Proposal to delete rule 24.2.1 - Alcohol based fuel or fuel additives are prohibited

[TZ350]

Miniature Road Racing
The maximum capacity for rebored engines shall be:
F4 2 stroke 55-100cc - 104cc (proposed change - Alter F4 2 Stroke to 55-107cc)
2 stroke 55-125cc air cooled - 130.5cc
4 stroke 55-150cc – 158.09cc
F5 2 stroke 0-50cc - 53cc
4 stroke 0-100cc - 104cc

Above are the current oversize allowances, what do other people think they should be?


F4 2 stroke 55-100cc - 104cc with proposed 52mm OS change becomes - 55-107cc
2 stroke 55-125cc air cooled - 130.5cc with 2mm OS a 50x56+2mm=132cc and 54x54+2mm=133cc

4 stroke 55-150cc – 158.09cc

Whats size is a readily available quality OS piston for the FXR150?

[Skunk]

The 100cc extra capacity only raises it from the current 104cc to 107cc. It isn't as much as the 145cc four have grown (now at 159.something). The rule change is aimed at keeping the bikes running - not at giving any advantage.


If it ain't smokin' - it's broken.

[Skunk]

Too late this year to change it but it could be put through next year.


If it ain't smokin' - it's broken.

[TZ350]

The rule change is aimed at keeping the bikes running - not at giving any advantage.

Thats 3 extra cc's and I would like to be able to use all the oversizes available for the GP to keep it running as well, and 3 extra cc's would do it for me too. Maybe that proposed rule change could be thought through a bit more and re submitted next year.

[husaberg]

I would like to be able to use all the oversizes available for the GP to keep it running too.

Have you ever looked at some kart pistons for the GP there was a lot of 125's back in the day not sure what strike go too either.

[TZ350]

Have you ever looked at some kart pistons for the GP there was a lot of 125's back in the day not sure what strike go too either.

I would be interested if they are current manufacture and readily available. 15 or 16 mm wrist pin, domed top, 1mm or less ring and center rear ring locating pin are the essential requirements.

[jasonu]

Exactly ..... air cooled 2T with 24mm carb and 117cc with the advantage of a good gearbox (and cheap pistons) or a 125 something else and not so good a gearbox, (and not so cheap pistons either) Buckets is indeed about choices.

You chose the 5 speed GP125 to base your work on and managed to get very impressive hp numbers from it. I'm not trying to knock your work but I would have never gone with a 5 speeder. If I were you I would look at lowering the HP in order to make the bikes more reliable and rideable and also put them on a severe diet.

[TZ350]

All good advice, particularly the bike weight and I guess handling and rider ability, all things which your bikes are particularly good at and are the yard stick that I measure other bikes against, all credit to you and Chris P.

As for choosing the GP125, well like a lot of things in life, its was pretty random. A friend of mine suggested we go Bucket racing and his son had given him a GP125. I wanted to beat my friend fair and square so needed to use the same type of bike. He was always the better rider but I would like to think I built a better bike.

http://geoffjames.blogspot.co.nz/2011/03/what-do-old-farts-know-about-riding.html
This is not me but you get the idea.

In my case I am not sure I can do much about the rider ...

Anyway Jason what has any of your post to do with the proposed rule change???

[craisin]

get the audience to all your meets to vote on it

[Kickaha]

but I would have never gone with a 5 speeder.

The gap between the gears is more important than whether it's a 5 or 6 speed

People have argued about o/s pistons and capacity limits for as long as I can remember, they need to stop stop trying to fix something which isn't broken

[jasonu]

Anyway Jason what has any of your post to do with the proposed rule changes???

You appear to want rule changes and I am trying to point out that maybe a rule change is not necessary and maybe a mindset change on some builders part could/would be beneficial.

From where I sit (8000 miles away.....) the rules look to be working so why mess with them.

[TZ350]

You appear to want rule changes and I am trying to point out that maybe a rule change is not necessary ... the rules look to be working so why mess with them.

When it comes to changing the capacity limits it appears we are on the same page.

Personally I don't want that and would like the status quo re capacity limits.

[richban]

Whats size is a readily available quality OS piston for the FXR150?

64mm pistons heaps of choice. 156cc. Nothing to take it to 158 with out changing stroke.

As I have said the 2 strokes have a massive tech advantage. But as know one has managed to build a 35/40hp 2 stroke (yet). I don't care.

For a formula class that has different engine allowances it should be all based on proven achievable hp not weather someone wants there old dunger to keep going. The rules are allowing good development and lots of good competition in the class.


Question.

What rule changes would allow more younger riders to come through buckets safely and give them the skills needed to compete at a hi level?



I for one really enjoy racing with these young people and seeing them go on to glory in other classes. How can we offer more to these kids.

[mr bucketracer]

64mm pistons heaps of choice. 156cc. Nothing to take it to 158 with out changing stroke.

As I have said the 2 strokes have a massive tech advantage. But as know one has managed to build a 35/40hp 2 stroke (yet). I don't care.

For a formula class that has different engine allowances it should be all based on proven achievable hp not weather someone wants there old dunger to keep going. The rules are allowing good development and lots of good competition in the class.


Question.

What rule changes would allow more younger riders to come through buckets safely and give them the skills needed to compete at a hi level?



I for one really enjoy racing with these young people and seeing them go on to glory in other classes. How can we offer more to these kids.

maybe every club should have a top bucket bike , the best young rider in each club gets it for the gp

[jasonu]

Question.

What rule changes would allow more younger riders to come through buckets safely and give them the skills needed to compete at a hi level?

Do you think that is really necessary? I didn't know Buckets had turned into a feeder class. How many kids go through Buckets into the 'real' classes?