Water cooling and unlimited carbs for 125s

[TZ350]

It seems to me all the front runners are on FXR150’s, what could this mean?

Maybe its time to allow unlimited or 28mm at least, carb’s on F4 125 two strokes and possibly water cooling too.

I have some RGV250 cylinders just begging to be run with a rotary valve bottom end.

Then the rewards of unlimited horsepower would be mine.

Bugger actually learning to ride!

[quallman1234]

Do you have any idea how quick GP125's are? I do, stuipdly quick for what they are. (120mph +)
(watercooled 125cc 2 strokes 32mm carb i think?)

Seriously tho, the limits atm are fine imo. Take F5Dave's bike for instance. It cleans up all the other bikes at slipways (admitally might struggle on the big tracks)

[Bert]

Rather than heading for bigger 2-strokes. why don't we enable older (pre95 or 98) 80cc mx motors into the fold. I would guess that there are plently of them around and parts are still very cheap. but have a carb limit of 24mm.

Over in Aus they have let them loose and by all accounts it has leveled things up between the 150 fours and the smelly twos.

here are the NSW Rules:
http://www.ozbucketracing.com/rules.html

There are some very well presented bikes.

Two cents again.
Bert

[koba]

Naa, leave it as it is, the rules are all nice and simple.

Also the really fast two strokes DO go LOTS faster than FXR's there is an example in the vid of the BOB that K14 posted up, the old KV100 MASHED everything down the straights.

Aussies are dicks, the current NZ rules kick arse coz they cater for many many different approaches.

[Pumba]

Your bike is already a bloody rocketship in a straight line, you just need to get it around the corners faster

[Bert]

I have some RGV250 cylinders just begging to be run with a rotary valve bottom end.

Then the rewards of unlimited horsepower would be mine.

Bugger actually learning to ride!

Scott Griffiths attempted that in the late 90's with the attempt to beat the likes of F5Dave and Ray Wilson. but with limited success. he used a XL 100 bore (~50mm Dia) and cut the ports out, mounted on a GP125 motor if i remember rightly.. just an idea for you.

Bert

[Skunk]

Personally I think the carb rules for 125's should be changed to 28mm. Stay with air-cooled though. If we get a consensus here we could submit it to MNZ.

[Skunk]

Naa, leave it as it is, the rules are all nice and simple.
Also the really fast two strokes DO go LOTS faster than FXR's there is an example in the vid of the BOB that K14 posted up, the old KV100 MASHED everything down the straights.
Aussies are dicks, the current NZ rules kick arse coz they cater for many many different approaches.

That 'old KV' is a well developed rocket. Lots of careful planning and tuning. I believe it's also temperamental and peaky. Agreed with you about the Aussies.

[Kickaha]

Personally I think the carb rules for 125's should be changed to 28mm. Stay with air-cooled though. If we get a consensus here we could submit it to MNZ.

Agreed.....

[Bert]

Naa, leave it as it is, the rules are all nice and simple.

Also the really fast two strokes DO go LOTS faster than FXR's there is an example in the vid of the BOB that K14 posted up, the old KV100 MASHED everything down the straights.

Aussies are dicks, the current NZ rules kick arse coz they cater for many many different approaches.

Point one True most of the well built ones do. but it is a dying art.

Point Two also true. Yes the current rules are good, but I guess where i was coming from was the possibility for improvement to the formula. My old sh!tter (which I have had now for 15 years & don't ride it as much as i should) is as old as me 1978 TS100. yes it still go's strong (when i can get it going), but I offen look at it and think maybe there are other options out there which are cheaper and easier, which may encourage more people to come back or start in the sport.

Last point maybe they are dicks, but that is your view. but they also have a better development plateform for younger riders. esp now with Troy introducing the metrakits and young rider race schools at philip island....
Could buckets be this for New Zealand. I think so. you only have to look at the young guys like luke and glen they started in buckets if I'm correct.

Ok seem people don't like this idea again, I put it back on the shelf for another couple of years...

B

[Bert]

Agreed.....

Second that.

[speedpro]

That 'old KV' is a well developed rocket. Lots of careful planning and tuning. I believe it's also temperamental and peaky. Agreed with you about the Aussies.

I've ridden that "old KV" in a 2 hour years ago. Apart from falling off three times(see, falling off is nothng new for me) I remember it as being wicked fast but very easy to ride. I don't remember it being tempermental or particularly peaky. I've known the Steadmans for a very long time, Peter owns the KV, and I haven't heard of too many problems with these KE/KV buckets.

It's always interesting to compare performance of modern buckets with those from say 15 years ago. There would be very few, 3 or 4 maybe, nowadays that would keep up at something like an Ohakea GP. That's the problem I suppose with running on kart tracks - there isn't much need for serious engine devlopment. At a GP you could easily expect 6-8 buckets at least as fast as the KV.

[Buddha#81:Me]

Ban all two strokers from bucket racing.....they smell (so do the bikes), they destroy the enviroment (not like my MotoFXR, which emits daisys out the exhaust) and the odd one bloody fast.

I vote it aint broke........

As a side note, i wouldn't mided a visit to aussie for a trans Tasman Challenge with superlites...... we get to keep our slicks!

[Slingshot]

A change in rules for 125cc two-smokers will kill it for those of us running 100cc two-smokers.

[Buckets4Me]

how bout we drop the cc for 4 strokes to 140cc again
instead of letting 2 strokes get bigger carbs
or an unlimited class
same cc rating but unlimited mods to engine no rules on carbs etc
lets see how good the 2 smoers realy are