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

[TZ350]

... a 100 water cooled 2 stroke would have to be the best way to go ...

With the proposed new 107cc oversize limit, H2O and unrestricted carb, it would be even better I expect.

i think. 10% Alc is a wast of time but 50%+ would be i think a big advantage.

Yes in practical terms I agree on both accounts, I note the proposed rules and appendix E bans Methanol and limits Ethanol to 10%.

[mr bucketracer]

With the proposed new 107cc oversize limit, H2O and unrestricted carb, it would be even better I expect.



Yes in practical terms I agree on both accounts, I note the proposed rules and appendix E bans Methanol and limits Ethanol to 10%.

all good then ... i thought 100s were unrestricted carbs? . should rase the oversize limit across the board as it is hard to find 4 stroke pistons

[Kickaha]

target is October 2014.

Yeah sure it will be, you can borrow the GN for Greymouth I'll be at Hampton Downs

[husaberg]

Yeah sure it will be, you can borrow the GN for Greymouth I'll be at Hampton Downs

I hear ya looking for a new Swinger too Warwick what up with that? did you bust ya old one?

[Kickaha]

I hear ya looking for a new Swinger too Warwick what up with that? did you bust ya old one?

You volunteering? promise I'll be gentle

He wants to go do some travel and shit with his girlfriend

[husaberg]

You volunteering? promise I'll be gentle

He wants to go do some travel and shit with his girlfriend

Only volenteering for the sidecar not auditioning to be a girlfriend
I'd be keen for a lap or two for a giggle to see if it is as good as you make out.
We are still talking about the sidecar though

[TZ350]

all good then ... i thought 100s were unrestricted carbs? .

Yes 100's are unrestricted carb but there is an oversize proposal to allow a 100 to be re-bored to 107cc so they can use easy to get 52mm pistons. So effectively, they could be 107cc unrestricted and water cooled.

Personally I don't want that and would like the status quo re capacity limits but some of my friends disagree with me and think its an OK idea.

... should raise the oversize limit across the board as it is hard to find 4 stroke pistons

This is the time to propose it to MNZ. In fact this is the time to express anything re any of the proposed rule changes to MNZ. Pumbers first post on page one has the link.

[mr bucketracer]

Yes 100's are unrestricted carb but there is an oversize proposal to allow a 100 to be re-bored to 107cc so they can use easy to get 52mm pistons. So effectively, they could be 107cc unrestricted and water cooled.

Personally I don't want that and would like the status quo re capacity limits but some of my friends disagree with me and think its an OK idea.



This is the time to propose it to MNZ. In fact this is the time to express anything re any of the proposed rule changes to MNZ. Pumbers first post on page one has the link.

i have a rd50 , i ran rg50 pistons in it but the first over size rg50 piston made the engine to big so that was the end of that .. i can see the need for over sized pistons for 2 strokes been a heap of work put into it then its buggered but then thats what you get for performance over 4 strokes i guess .. but then we do want to keep the sport cheap !!! so what do we do and where do we draw the line...

[speedpro]

Looking at the capacity increase in isolation there doesn't seem to be much wrong with it. A less than 2% increase opens up 10 freely available, well priced, oversizes. For MB100 engines anyway.

In comparison, since I started bucket racing, aircooled 2-strokes have increased in capacity 25%, or more if you count oversizes. F4 4-strokes have increased in capacity 20% or a bit more if you again count oversizes.

I don't remember too much bleating when those other engine types were allowed a capacity increase. Actually there was a lot of bleating. Funnily enough the world is still turning, although . . . . it is a bit warmer, maybe.

[TZ350]

... less than 2% increase ... In comparison, since I started bucket racing, aircooled 2-strokes have increased in capacity 25%, or more if you count oversizes.

Its changes to the current rules we are talking about, 100cc unlimited or 125 air cooled and 24mm carb.

Maybe if you want to use cheaply available pistons that take you outside the 100cc + oversizes capacity limit then maybe you should run air cooled and use a 24mm carb.

Maybe the whole oversize thing needs to be re viewed for the whole class.

[husaberg]

Its changes to the current rules we are talking about, 100cc unlimited or 125 air cooled and 24mm carb.

Maybe if you want to use cheaply available pistons that take you outside the 100cc + oversizes capacity limit then maybe you could run air cooled and use a 24mm carb.

I see what you are saying Rob but the MB don't go to 125...............well not without aftermarket cylinders or stroking

[TZ350]

I see what you are saying Rob but the MB don't go to 125...............well not without aftermarket cylinders or stroking

Yes but Buckets is all about the choices, either don't run an oversize MB100 or rejoice in the fact they have the advantage of being able to be fitted with a very nice gearbox and then you can stretch its capacity out to as far as you want/can/have the ability to go.

MB100 cylinders are readily available new at very cheap prices. Speedpro talked about a bulk buy for all-cumbers just a while ago. And its not to hard to develop a porting routine that is easy enough to replicate.

Personally I think the whole oversize thing for everybody needs looking at. I think the 4T boys find it hard to get suitable pistons so they can use their OS allowance and a few cc's would make it easier for them and 125 2T's for all practical purposes are limited at the moment to half the oversizes available for a 56mm bore.

[husaberg]

Yes but Buckets is all about the choices, either don't run an oversize MB100 or rejoice in the fact one can be fitted with a very nice gearbox and then stretch its capacity out to as far as you wan't to go.

Rob what i am saying is sure you can run it as a 125 but it will be at a disadvantage in doing so.....as they generally only go to about 117 or so......
Yes buckets are about choices.

[TZ350]

Yes buckets are about choices.

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.

[husaberg]

Exactly that ..... and the willingness to make the best of them.

Find the best or least worse compromise.........