ESE's works engine tuner

[katinas]

Thank you, all, for the helpful tips and pictures!

katinas - What is with the large aluminum sleeve in the blank cylinder in the last picture?

Sleeve on RGV just separate oil for bearings, from blanked cylinder crank space.
On NS, just put same oil in vertical blanked cylinder crank space and covered with plate instead of a cylinder. It could be usable for parallel twin too.

[F5 Dave]

So, are they like a tapered gas fitting thread?

[Pursang]

So, are they like a tapered gas fitting thread?

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[katinas]

Magic artwork photo

[speedpro]

Not going to mention any names but I find it hard to believe that the 2-stroke world is not totally dominated by his work.

[wobbly]

It is SpeedPro - just like the KZ kart class championship being raced in Lonato as we speak - its dominated by his finest creation , the Ryger.
Oh , no sorry , it will be - soon , very soon.
And dyno sheets will be produced to prove it - soon , very soon.
Ye of little faith.

[jamathi]

Dear multi-cylinder experts,
When doing cylinder development on a multi-cylinder engine, is it common to make a single cylinder development engine? For example, could a guy cut a parallel twin in half? Obviously on a water cooled, it would take some plumbing work. The crankshaft would need some major mods. Just curious if anyone goes through the hassle. Thanks!

I always did this, it is the only right way!

[husaberg]

I always did this, it is the only right way!

I have always heard them refered to as being test mules, i am not sure if that translates to Dutch or Italian.

[fpayart]

Hello Jan,

I did not pay enough attention to this picture of the Aprilia single-cylinder.
I discover the device at the bottom of the chart disk.
Curious, is not it!
What was the function? Measuring sensor or signal for ignition?
I seem to see that in the lower part of the disc, the notching is irregular?



Friendly
Francis

[jamathi]

Hello Jan,

I did not pay enough attention to this picture of the Aprilia single-cylinder.
I discover the device at the bottom of the chart disk.
Curious, is not it!
What was the function? Measuring sensor or signal for ignition?
I seem to see that in the lower part of the disc, the notching is irregular?



Friendly
Francis

it was used for flow testing.
From the flow testing the idea of the RSA was born.

[TZ350]

Pinky is going to get a new heart.

A Suzuki GP100 fits in there real nice and with the NSR110 conversion it should be good for 30hp and water cooled for all day power.

Those Team GPR frames are real light and beautifully made.

[peewee]

does anybody know about these conrods ? https://www.ebay.com/itm/Yamaha-RD35....c100010.m2109

[F5 Dave]

Pinky is going to get a new heart.

A Suzuki GP100 fits in there real nice and with the NSR110 conversion it should be good for 30hp and water cooled for all day power.

Those Team GPR frames are real light and beautifully made.

Nice, rid thee of thy foulstroke Gubbins.

I only rode the TZR one Brent had, but it was clearly a better chassis than my NF4. Mind you it would have cost more than the $300 I effectively paid.

[husaberg]

does anybody know about these conrods ? https://www.ebay.com/itm/Yamaha-RD35....c100010.m2109

They are re branded Long brand rods
I remember someone not being happy with some... Mike?
but it might have been more to do with the bearing?

[wobbly]

No silver coating on the old ( useless ) M style cage - cheap junk.