ESE's works engine tuner

[bucketracer]

The 2 Hour and the team of Hugh Trenhome & David Hall on number 12 demonstrate how not to do it.



Even managed some fast times with a best of 29.988



But all over the place and kept falling off.

In the end they only managed 152 laps while nearly everyone else did over 200 with the pointy end over 230.

Anyone can ride loose, the real trick is to be smooth, go fast and stay on.

Being abusive to the people running the meeting was not that clever either.

All round it was a display of dumb and dummer.

[TZ350]

Hi Rob
A new record number of laps & an amazing stat of an average lap time of 29.93 for a whole hour of racing by winner Nathanael Diprose. Regards.
David.

The display put on by number 12 made Nathanaels winning style look realy good.

[Drew]

Anyone can ride loose, the real trick is to be smooth, go fast and stay on.

It is much much easier to teach a fast rider not to fall off, than it is to teach a slow rider how to go fast.

[koba]

It is much much easier to teach a fast rider not to fall off, than it is to teach a slow rider how to go fast.

Haha, that's the common wisdom but no-one ever managed with you, eh?

[Drew]

Haha, that's the common wisdom but no-one ever managed with you, eh?

I'll blame that I didn't have a teacher.

[senso]

Question to the gurus(and the non gurus as well).
Is there any reason(besides probably a better center of gravity and more compact engine), to have the cylinders almost parallel to the ground?
All the racing engines, or almost all have very inclined cylinders, for example the rsa, tz, honda rs, kreidler van veen, all have cylinders that are parallel to the ground or very close to that.
Maybe a straighter exhaust?

[Frits Overmars]

All the racing engines, or almost all have very inclined cylinders, for example the rsa, tz, honda rs, kreidler van veen, all have cylinders that are parallel to the ground or very close to that. Maybe a straighter exhaust?

Or maybe new glasses, Senso ? The Van Veen Kreidler does have a horizontal cylinder, but from a technical viewpoint it is a dinosaur. The Honda RS125 and Aprilia RSA125 cylinders are nowhere near parallel to the ground.

[senso]

Near parallel was an exaggeration, sorry :/
So its purely about packaging the engine the best way possible.
But they are still more slanted than a lot of street engines, like the cr's, or the gas gas engines, or the ktm''s, etc, you get the idea.

[monkeyfumi]

Near parallel was an exaggeration, sorry :/
So its purely about packaging the engine the best way possible.
But they are still more slanted than a lot of street engines, like the cr's, or the gas gas engines, or the ktm''s, etc, you get the idea.

Which are all dirt bike engines...

[F5 Dave]

bearing in mind CRs, KTMs & GasGas have 21" front wheels with lots of travel. Well mine does anyway.

[monkeyfumi]

Husaberg (the company) had an interesting take on this a few years ago
http://www.motorcycledaily.com/2007/...usaberg_450fe/

[136kg136ps]

The more upright orientation will help protect the fragile bits.

I'm sure the COG plays a part with the higher suspension travel.

To a certain degree it is likely also a design holdover that engineers saw no advantage to change or certainly we'd have seen .....Honda trying some halfarsed horizontal cylinder and forcing everyone else to use them.

[Yow Ling]

Maybe Flettner can help here, what is a good material to use to make a mould of existing transfers in a cylinder ?
What do you use to glue sand cores together? Maniseal?

That's all for today

[Drew]

Maybe Flettner can help here, what is a good material to use to make a mould of existing transfers in a cylinder ?
What do you use to glue sand cores together? Maniseal?

That's all for today

That sorta raises a question of it's own. How the hell are you going to get them out?

[Yow Ling]

That sorta raises a question of it's own. How the hell are you going to get them out?

that's kinda like the "how did you get a baby out of there"question