ESE's works engine tuner

[husaberg]

no one has got more than 30 H/p from one yet (that I know of)

and starting over again with a new engine (what would Burt have said)

Yet

And Burt had the Velocette as well remember.
From what i understand it was the Worlds Fastest Vellocette as well.(according to Ivan Rhodes)
Not bad for a old fella from invergiggle.

[Buckets4Me]

Yet

And Burt had the Velocette as well remember.
From what i understand it was the Worlds Fastest Vellocette as well.(according to Ivan Rhodes)
Not bad for a old fella from invergiggle.

and if you asked anyone they would have asked WHY and said it cant be done
or thats not the way to do it. you mow the lawn not BURN it.

I did hear that TZ is now doing somehthing different ( still the same engine )

[TZ350]

Is that potentially a better all-round configuration ??

100cc H2O pumper, well thats plan "B" and I have box's of parts put aside just in case I have to go there.

What would the result be with a 100cc engine ,watercooled, with no carb size restriction.

Well, its easy to see, here is a dyno graph of the best 100cc H2O pumper that I know of.

Speedpros 30 hp 100 compaired to several runs of my 28.9 hp air cooled 125 configuration. I like the torqe curve of my 125 better. Reliability, well it did several Mt Welly meetings and ran all day when the Bucket GP was run on the old Taupo track just before last Xmas. All that was before I swapped the cylinder for one ported for 31 hp which failed at Kaitoki.

I am having way to much fun pushing for a reliable 32-34 with an equally good power spread to want to change tacks at the moment. And if anyone wan'ts to know, those consistant 28.9 hp runs were done with a 24mm HL 360A Tillotson go kart pumper carb.



Tillotson HL 360A 24mm

[kel]

I did hear that TZ is now doing somehthing different ( still the same engine )

It's those fancy forks, they've made him go all Honda

[husaberg]

It's those fancy forks, they've made him go all Honda

It normally starts with a few Honda bits here and there and then snowballs until it ends up like (Name deleted) Er... Non Honda.
where the only Yamaha bits left is the piston.That it seem is even trying to get it self replaced as well.

[Grumph]

100cc H2O pumper, well thats plan "B" and I have box's of parts put aside just in case I have to go there.





Well here is a dyno graph of the best known 100cc H2O pumper.

Speedpros 30 hp 100 and my 28.9 hp air cooled 125 configuration, I like the torqe curve of my 125, and it did several Mt Welly meetings and ran all day on the old Taupo track Bucket GP before last Xmas before I swapped the cylinder for the 31 hp unit.

I am having way to much fun pushing for a reliable 32-34 with an equally good power spread to want to change tacks at the moment. And if anyone wan'ts to know, that consistant 28.9 hp was run with a 24mm HL 360A Tillotson go kart pumper carb.

That was my experience with the big MB...not a lot more HP but much better torque. This is where you may start to look hard at matching tracks to motors. The better torque of the 125 suits Kart tracks and the 100's work well on big circuits where you're on full noise most of the time - and the water cooling gives them potentially better endurance.

[Buckets4Me]

they've made him go all Honda

not bad for a Yamaha man with a suzuki bike
now what aircooled rotary valved hondas are out there so he can go all the way
I did hear that he was going back to suzuki for some bits

[TZ350]

This is where you may start to look hard at matching tracks to motors. The better torque of the 125 suits Kart tracks and the 100's work well on big circuits where you're on full noise most of the time - and the water cooling gives them potentially better endurance.

Totaly agree, its starting to look like the air cooled 125 could be good on short circuits and a water cooled 100 for the longer tracks.

[jasonu]

Totaly agree, its starting to look like the air cooled 125 could be good on short circuits and a water cooled a 100 for the longer tracks.

Maybe not.
Quote from Bucketracer

The tide might be turning.

2-Strokes in the points racing at Mt Welly yesterday, and about time .....

The Dominic Howe was won by Dave M riding an MB100 powered RS50 prepaired by Speedpro with a 25hp 80cc stroker runner up.

And F5 was 2-Strokes 1-2 all day long.

[TZ350]

Ok changed the ports and skimmed the top of the cylinder to get the squish closer to 0.6mm

All this to take 0.35mm of the top of the barrel, we do go to some trouble to get the details right.

The split ring held the cylinder central and the pull back held it secure and square in the chuck. The pull backs foot is across the main transfer ports and the threaded rod goes right through the lathes head stock and is pulled up with a nut and spacer at the back.

[Yow Ling]

So TZ , say you were thinking of making your own barrel , engine or even spacecraft. You could read this thread http://www.homemodelenginemachinist....?topic=18727.0 and steal and adapt some of this guys rapid prototyping ideas.

[TZ350]

So TZ , say you were thinking of making your own barrel , engine or even spacecraft. You could read this thread http://www.homemodelenginemachinist....?topic=18727.0 and steal and adapt some of this guys rapid prototyping ideas.

Thats some clever idea, and plenty of links to other casting methods, well worth a very carefull read. Thanks.

[husaberg]

So TZ , say you were thinking of making your own barrel , engine or even spacecraft. You could read this thread http://www.homemodelenginemachinist....?topic=18727.0 and steal and adapt some of this guys rapid prototyping ideas.

That is real neat.
I guess by now most people know that is similar to how some of the patterns for the Britten V twins were done.
Except the crew used thin plywood sheets they scaled the pieces off the blueprint cross sections and glued them together allegedly

[TZ350]

Front wire wheel 9.0kg
Rear wire wheel 9.5kg

Front FZR wheel 9.0kg
Rear FZR wheel 12.0kg

HONDA CBR 400 NC23 FRONT Wheel 3.5X17
HONDA CBR 250R MC19 2.5X17

Bare Std RS Front 2.7kg
Bare Std RS Rear 3.2 kg.

Complete RS Front wheel 8.0kg
Complete RS Rear wheel 9.5kg

Wire complete Front wheel 9.0kg
Wire complete Rear wheel 9.5kg

FZR complete Front wheel 9.0kg
FZR complete Rear wheel 12.0kg

Complete RS swing arm 3.5kg
Complete FZR swing arm 4.5kg.

CBR250r wheels complete with disks tires spockets etc .
Front spoked wheel:
11.1 kg 3-spoked cast wheel:
10 kg 6-spoked cast wheel: 10.5 kg

Rear spoked wheel:
13.1 kg 3-spoked cast wheel:
13.8 kg 6-spoked cast wheel: 13.9 kg

A std ZXR750 front wheel from the 90's is 4.5 KGs (bare weight)

Attachment 263841
RS Front 7kg
Attachment 263842
Complete rear with sprocket carrier 7.2kg

Failing that two matching 3.5"x17" fronts from the Suzuki GSXR range or Honda CBR for adapting to the back of the Beast.

Bare front GSXR Suzuki 3.5"x17" 4.5kg

[F5 Dave]

Hmm, where did that GSXR wheel come from? I sold one last year on TM.