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

**husaberg** · 13th April 2014, 13:08

Originally Posted by richban

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.

Massive tech advantage really? not much r&D has been spent on the two strokes lately?
but they do benefit from freely available information that has flowed since they departed from MGP.
It is unlikely we would have discovered at lot of the secrets if they hadn't.
Yet access to the information and Implementing it is another story.
The idea of 107 was not to mazimise cc's but allow the cheapest freely available pistons to be used.
I don't think it was so much about keeping them going but making them affordable.
Yes buckets are a formula class, but it is meant to be a affordable formula class..........
I challenge anyone to find a decent affordable 50-51mm piston with a 14mm pin and thin rings non dyke and a long enough skirt for a 50mm stroke.
I have scoured the net and so have others......

**cotswold** · 13th April 2014, 13:12

[........
I challenge anyone to find a decent affordable 50-51mm piston with a 14mm pin and thin rings non dyke and a long enough skirt for a 50mm stroke.
I have scoured the net and so have others......[/QUOTE]

Challenge accepted

http://www.meteorpiston.com/Lists/Ka...2FLists%2FKart

**cotswold** · 13th April 2014, 13:13

I can see no reason capacities should or need to be changed, the 4 strokes were changed for the sole reason of saving bucket racing, the FXR was freely available in large quantities and say what you like but buckets would be dead without them.
A ( very ) good rider on an air cooled 125 lapped the entire field at a North Island round, the Hoogies won the GP on a Honda, Andrew on an FXR, Nigel won on his 100cc w/c and the latest has been young Nathaniel on his 80. If you take a look at the riders there is a common denominator, they are all good. The bikes are very different.

**husaberg** · 13th April 2014, 13:21

Originally Posted by husaberg

I challenge anyone to find a decent affordable 50-51mm piston with a 14mm pin and thin rings non dyke and a long enough skirt for a 50mm stroke.
I have scoured the net and so have others......

Originally Posted by cotswold

Challenge accepted

http://www.meteorpiston.com/Lists/Ka...2FLists%2FKart

Fail
It has a dykes ring have a closer look............

plus the MB's start at 50.5mm std

**cotswold** · 13th April 2014, 13:30

Originally Posted by husaberg

Fail
It has a dykes ring have a closer look............

4 out of 5 aint bad

**husaberg** · 13th April 2014, 13:31

Originally Posted by cotswold

4 out of 5 aint bad

3 out of 5

i missed the bore

**mr bucketracer** · 13th April 2014, 13:36

http://www.wossnerpistons.com/produc...e?cookietest=1
don't know what the pin size is

**husaberg** · 13th April 2014, 13:37

Originally Posted by mr bucketracer

http://www.wossnerpistons.com/produc...e?cookietest=1
don't know what the pin size is

12mm plus the rather large holes in the skirt.........
plus 50mm
2 out of 5 Scott...........
To save you guys time the only ones there seem to be arround are wiesco 105cc os for the AMA 85's and they are not cheap.
the other i think is the Rm100 not been made in 30+ years and not even common then.....

**mr bucketracer** · 13th April 2014, 14:21

Originally Posted by husaberg

12mm plus the rather large holes in the skirt.........
plus 50mm
2 out of 5 Scott...........
To save you guys time the only ones there seem to be arround are wiesco 105cc os for the AMA 85's and they are not cheap.
the other i think is the Rm100 not been made in 30+ years and not even common then.....

i have a rm100 piston in my tf100 , thats what i was looking for but the first one i found said it was 54mm .. thought i had lost my mined .. wisco rm pistion is nice

**husaberg** · 13th April 2014, 14:32

Originally Posted by mr bucketracer

i have a rm100 piston in my tf100 , thats what i was looking for but the first one i found said it was 54mm .. thought i had lost my mined .. wisco rm pistion is nice

yeah but they are all old stock now not likely to be remanufactured and not so cheap either, from memory the wiseco ones are 2 ring as well is that right.

**TZ350** · 13th April 2014, 14:53

Originally Posted by husaberg

I challenge anyone to find a decent affordable 50-51mm piston with a 14mm pin and thin rings non dyke and a long enough skirt for a 50mm stroke.

http://www.ebay.com/itm/KAWASAKI-KE100-KE-100-WISECO-PISTON-KIT-50MM-50MM-OVER-BORE-ALL-YEARS/151041153433?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222008%26algo%3DSIC.MOTORS%26ao%3D 1%26asc%3D20131003132420%26meid%3D6165395233782219 706%26pid%3D100005%26prg%3D20131003132420%26rk%3D3 %26rkt%3D6%26sd%3D201062420253&rt=nc

Wiseco Kawasaki KE100 50mm plus 0.5mm OS 14mm pin and thin rings. $77.55 USD each (aprox $88 NZD) eight available be quick.

$80USD http://www.ebay.com/itm/New-Wiseco-P...3ce136&vxp=mtr

$34.54 USD http://www.ebay.com/itm/NP-KAWASAKI-...99bd88&vxp=mtr

$85.77 USD 31 avaiable http://www.ebay.com/itm/Wiseco-369M0...673d9a&vxp=mtr

$112.53 NZD 3 available ex Aus http://www.ebay.com/itm/Wiseco-Pisto...728cdf&vxp=mtr

$113.86 NSD 3 available http://www.ebay.com/itm/Wiseco-Pisto...4876b3&vxp=mtr

$76.79 USD aprox $88.42 NZD 4 available http://www.ebay.com/itm/Wiseco-Pisto...ec8ffc&vxp=mtr

.
.
.
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And so it goes on.

**husaberg** · 13th April 2014, 14:56

Originally Posted by TZ350

http://www.ebay.com/itm/KAWASAKI-KE1...62420253&rt=nc

Wiseco Kawasaki KE100 50mm plus 0.5mm OS $77.55 USD each (aprox $88 NZD) eight available be quick.

I will have a look but i hazard a guess they will have fat rings.
Yes 14mm pin price looks good, but bummer they only go to 50.5mm.
If only someone was still on std bore size after 30 years.
Never got as far as the rings but the pic is a generic wiesco one pretty sure they would be 2x fatties
the more i look at the wiesco cattledog the more 52mm makes sense the KTM105 is that bore as a the os for the late RM85 and the Kx100 they all have 14mm pins.........

**TZ350** · 13th April 2014, 15:07

Originally Posted by husaberg

If only someone was still on std bore size

Forgot MB100's are 50.5 std

but still they may be good for the water cooled RG400 cylinders or TF/TS 100s. These look to be current/recent production so hopefully Wiseco make other over sizes.

**kel** · 13th April 2014, 15:08

I seem to remember we all used RG400 pistons in our TF's, 14mm pin 50mm bore plus oversizes. Cheap and thousands still available today http://www.ebay.com/itm/SUZUKI-RG400...8369ec&vxp=mtr . Whats more there are thin ring race variants available as well. Not nearly as sexy as a 52mm Strike though.