Sepang test musings.

In article <6bd48576-a3f4-49aa-af9a-969f10a668b7.DeleteThis@z17g2000hsg.googlegroups.com>,
sturd.virtec.DeleteThis@gmail.com wrote:

> Julian Bond gets a woody:
>
> > Hard to see but there are plates over the exhaust ports during the
> > build.
>
> You think there's a plate there hiding the exhaust ports? I can see
> where the top of the cylinder is, next piece I'd expect is bottom of
> the head. Either it or the next piece, with that tube on it, has to
> have the exhausts if they are on this side. Is the tube sealing them
> off? Maybe it's used for something as it's got a cap of some sort on
> rider left. I think it's a cooling connection though, similar to the
> one at the bottom on rider left.

The cylinder is the lighter coloured piece, on top of that is the bit with the
cross tube that has a black stopper on the end (water inlet/outlet manifold) - that's
the head. Right next to and below the black cap (at about a 45 degree angle) is the
plate that's covering one of the exhaust ports. Next to the cap, you can see an empty
bolt hole, then closer to the lower corner of the head is another bolt. That's
holding on a plate. It's hard to see but there's something similar in the center,
below the cross tube (just below the sensor that's hanging). I don't think you could
really put both the intake and exhaust on the same side as the ports would be a
nightmare.

--
tanx,
Howard

Whatever happened to
Leon Trotsky?
He got an icepick
That made his ears burn.
But I've already got a pitchfork...

remove YOUR SHOES to reply, ok?
 >> Stay informed about: Sepang test musings. 

sturd.virtec RemoveThis @gmail.com Tue, 29 Jan 2008 12:12:06
>Chris Paine asks:
>> Has Rossi been over hasty in ditching Michelin ?
>
>I predict that is so. Betting against Michelin in MotoGP over
>the long term is a bad bet. I bet.

They've already started chucking toys around as the engineers from one
team keep sneaking into the other garage.

>http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet
>/t98.htm
>Exhausts in the back! Or maybe a closed system.....

Hard to see but there are plates over the exhaust ports during the
build.

>http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet
>/t5e.htm
>Does a pneumo motor really need to be that tall? Seems like a
>packaging
>problem for a two wheeler.

Those photos on SuperBikeWorld are pure tech pr0n.

--
Julian Bond E&MSN: julian_bond at voidstar.com M: +44 (0)77 5907 2173
Webmaster: http://www.ecademy.com/ T: +44 (0)192 0412 433
Personal WebLog: http://www.voidstar.com/ skype:julian.bond?chat
Not A Toy
 >> Stay informed about: Sepang test musings. 

> http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet/t98.htm
> Exhausts in the back! Or maybe a closed system.....
>
> http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet/t5e.htm
> Does a pneumo motor really need to be that tall?

Isn't Kawasaki the only one of the major Japanese manufacturer that has
never won a title in the top class? Hopkins' bet is a tall one. They seem to
be gambling on disruptive technologies, but it traditionally been marginal
improvements on proven technologies that have provided the edge in
mototcycle racing.

I am sure there's a counter example for everything - but when has disruptive
technology paid off in the top class? MV Augusta's 4 cyclinder? Yamaha's two
stroke (but not really, since it came way after... was it a Konig or
something like that legendary Newcombe was riding?)... all in all it seems
to be far more about gradual incremental change rather than fundamentally
disruptive technologies, doesn't it?

....p
 >> Stay informed about: Sepang test musings. 

Howard Kveck points out:

> Right next to and below the black cap (at about a 45 degree angle) is the
> plate that's covering one of the exhaust ports.

I think you're right but... If you look at the other view,
taken from rider right, there's a wire that goes to maybe
a temp sensor? covered in blue. It is bolted really close
to what should be a manifold bolt.

Mighty tight in there.


Regards
Mike S.
 >> Stay informed about: Sepang test musings. 

In article <a89754df-6b4a-47be-b046-c40113f29ca9.DeleteThis@s19g2000prg.googlegroups.com>,
sturd.virtec.DeleteThis@gmail.com wrote:

> Howard Kveck points out:
>
> > Right next to and below the black cap (at about a 45 degree angle) is the
> > plate that's covering one of the exhaust ports.
>
> I think you're right but... If you look at the other view,
> taken from rider right, there's a wire that goes to maybe
> a temp sensor? covered in blue. It is bolted really close
> to what should be a manifold bolt.

If you're talking about the thing that's got a light blue wrap around it, I'd say
it's a fluid line of some sort. At the top, there's a banjo fitting just above the
area where the exhaust port is. The other end has a 45 degree fitting that's attached
to (or appears to) a black bit that's bolted (two bolts) to a round cover. Is that
the one you mean? The round thing looks like it's on one end of one of the cam drive
gears (that cover on the right appears to be a series of gears for cam drive).
There's some sort of sensor coming out of the front of that round thing - who knows?

I also notice that there looks like two sets of mounting bosses on the front of
the engine - one at the top of the crankcase upper and one on the cylinder, about an
inch and a half apart. It's interesting that they would adjust the height of the
motor that much.

> Mighty tight in there.

Yeah. The quality of the castings impresses me. it's all really clean work.

--
tanx,
Howard

Whatever happened to
Leon Trotsky?
He got an icepick
That made his ears burn.
But I've already got a pitchfork...

remove YOUR SHOES to reply, ok?
 >> Stay informed about: Sepang test musings. 

In article <0P-dnbhqFeIUZgLanZ2dnUVZ_oKhnZ2d DeleteThis @comcast.com>,
"pablo" <pabloAT DeleteThis @simplyhombreDOT.net> wrote:

> > http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet/t98
> > .htm
> > Exhausts in the back! Or maybe a closed system.....
> >
> > http://www.superbikeplanet.com/image/2008/mgp/sepang-january-test/joliet/t5e
> > .htm
> > Does a pneumo motor really need to be that tall?
>
> Isn't Kawasaki the only one of the major Japanese manufacturer that has
> never won a title in the top class? Hopkins' bet is a tall one. They seem to
> be gambling on disruptive technologies, but it traditionally been marginal
> improvements on proven technologies that have provided the edge in
> mototcycle racing.
>
> I am sure there's a counter example for everything - but when has disruptive
> technology paid off in the top class? MV Augusta's 4 cyclinder? Yamaha's two
> stroke (but not really, since it came way after... was it a Konig or
> something like that legendary Newcombe was riding?)... all in all it seems
> to be far more about gradual incremental change rather than fundamentally
> disruptive technologies, doesn't it?

I don't think that Kawasaki is doing anything that's all that far out. The
pneumatic valves have been in F1 for ages - it's pretty dialed in by now. Oh, on the
Yamaha 2-stroke, do you mean Ernst Degner? He defected from East Germany with all the
tech know-how on making 2-strokes live that he'd learned while riding for MZ. That
info is what helped Suzuki win a title.

--
tanx,
Howard

Whatever happened to
Leon Trotsky?
He got an icepick
That made his ears burn.
But I've already got a pitchfork...

remove YOUR SHOES to reply, ok?
 >> Stay informed about: Sepang test musings. 

I think all the V-4s are now using screamer engines. They all have 4-2
exhausts with equal length headers before the junction which suggests a
360 deg crank. Now Kawasaki is testing a screamer engine leaving Yamaha
as the only one on a big bang.

--
Julian Bond E&MSN: julian_bond at voidstar.com M: +44 (0)77 5907 2173
Webmaster: http://www.ecademy.com/ T: +44 (0)192 0412 433
Personal WebLog: http://www.voidstar.com/ skype:julian.bond?chat
Open Other Side
 >> Stay informed about: Sepang test musings.