ESE's works engine tuner

[OopsClunkThud]

The EFF has had success in overturning/preventing patents where prior art exists. Mostly in software, but this may be one they could take.

https://www.eff.org/patent-busting

[Greg85]

A Vortex won in the weekend, but it was a situation exactly like 250 GP with Aprilia, the fast TM guys keep taking each other out, or ruining each others points totals.
If you look at the lap times DeConto / TM qualified 17th due to a loose hose, that dumped water on the track that then ruined a lot of others times.
He was the fastest in the final going from 14 to 5th , if he had started top 4 it was an easy win..
DEA will never be a force in top level KZ racing , no matter how good the engines are technically, as you have 10 genuine factory supported TM drivers , tuned by Franco on the day.
Its a case of better / more data , better/more support at every championship round.

https://www.youtube.com/watch?v=Pv5s_n66W9Y

hello wobbly indeed the franco drudi engines works really well in particular that of paolo de conto I was there in genk too bad for the collar not tightened it would have won this final... what is impressive is the number of karts that come to test the carburation at franco they must manage well because having so many engines to adjust the carburation must not be easy in any case the setup carburetor sounds good, soon the tm kz-r1 by franco-wobbly

[TZ350]

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Making progress with the new direct oil to the big end crank. As soon as I can get the motor back together I can get on with my EFI work again, looking forward to that



Got the oil holes lined up Ok. Brass Oil feed quill on the right. Crank trued up to within 0.0005"



Healthy 1.5mm clearance each side in the cases.

[TZ350]

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I have received a reply, looks like fax is the best way to contact the Patent Office with information re KTM's patent application. Basically the Patent Office has to have it in writing.



Thank you for your e-mail. We do not forward your inquiry to the file.

Please send your third party indications (Sec. 43 German Patent Act)

• via post (Deutsches Patent- und Markenamt, 80297 München)

and/or

• fax (+49 89 2195 - 2221)

To the file number. This is the only way to manage your concerns legally effective and quickly.

[husaberg]

.
Making progress with the new direct oil to the big end crank. As soon as I can get the motor back together I can get on with my EFI work again, looking forward to that

I see you kept the back cut step transition in the Std Kawasaki inlet.
Does this version of the GP110 have the straight cut primary or did you not end up using it?

[shnaggs]

What Aluminum is best to use for a head insert? I see that VHM states they have a special aluminum, could be just marketing , but I was thinking of using 7075 aluminum, would this work or is there a better aluminum for the job?

[katinas]

What Aluminum is best to use for a head insert? I see that VHM states they have a special aluminum, could be just marketing , but I was thinking of using 7075 aluminum, would this work or is there a better aluminum for the job?

Would be better Al-Cu alloys - 2618, 2024, 2014. 2618- less thermal expansion and better thermal conductivity.

[wobbly]

2024 alloy is technically the go ( good temp strength ) but as long as the insert is carefully designed ( thick enough ) and has the dome retained by the cover
then 6061 works perfectly.

[Muhr]

What Aluminum is best to use for a head insert?

https://www.makeitfrom.com/compare/2...97075-Aluminum

[Flettner]

And so it begins, KTM's patent application has stirred up other European manufactures. I don't think TPI will be patentable from what I hear, there is certainly some opposition to KTM's shenanigans.

[TZ350]

I see you kept the back cut step transition in the Std Kawasaki inlet. Does this version of the GP110 have the straight cut primary or did you not end up using it?

Yes standard Kawasaki KE rotary valve cover.



And straight cut gears cobbled together from a Honda Monkey Bike and GN clutch inner and cover for normal clutch springs instead of the difficult to fit GP ones with pins. See, easy as.

[wobbly]

I have seen several 7075 inserts crack , it seems to work harden under cyclic thermal of stress loads.

[TZ350]

.

After 30 plus years, a track currently used by Karts, Roller Bladders, Auckland Uni Engineering School and Buckets the Council closes Mt Wellington so they can make more money off the land as a container park.

Spontaneous race around the town square, got about 3 laps in before the council sent their noddy down to see what was going on.

https://www.facebook.com/leader.of.t...0834104070632/

After race prize giving and media attention.

[Michael Moore]

Would be better Al-Cu alloys - 2618, 2024, 2014. 2618- less thermal expansion and better thermal conductivity.

Matweb seems to disagree on 2024 vs 6061 (they didn't have the same temp range listed for CTE as for 6061)

2024-T6 CTE linear 23.8 µm/m-°C @Temperature 20.0 - 200 °C
2024 thermal conductivity 151 W/m-K

6061-T6 23.6 µm/m-°C @Temperature 20.0 - 100 °C
6061 thermal conductivity 167 W/m-K

Even if CTE is a wash 6061 seems to be better at conducting heat.

In Volume 2 of his series John Bradley mentions that the 2xxx and 7xxx series may have more corrosion issues and should be clear anodized to protect them. He also says that 2024 is much better than 7075 for fatigue resistance, and 7075 T6 can have a problem with fast fracture failure.

6061-T6 is similar in properties to 356-T6 casting alloy that might be used to make a cast head, perhaps it is good enough? It is certainly readily available, at least in the USA.

cheers,
Michael

[Flettner]

.

After 30 plus years, a track currently used by Karts, Roller Bladders, Auckland Uni Engineering School and Buckets the Council closes Mt Wellington so they can make more money off the land as a container park.

Spontaneous race around the town square, got about 3 laps in before the council sent their noddy down to see what was going on.

https://www.facebook.com/leader.of.t...0834104070632/

After race prize giving and media attention.

Cool, I thought the after race function might invole police.
Good effort.