[Ducati] 17000 RPM MotoGP Limit?

[Tony Pagliaroli]

On Tue, Mar 11, 2008 at 4:09 PM, Peter Bonner <dsi at swcp.com> wrote:
> robbing aspects, such as spring valves. Pneumatics allow for stronger cam
> profiles without floating, but still there is the additional friction to
> operate the valves vs desmo. Hence the Yamaha is improved, but still behind.

So I'm not sure I understand how the pneumatic motors have additional
friction to operate valves over desmo.  Also, unless there's some rule
scenario that specifically prohibits this technology, I can't imagine
why F1 wouldn't adopt it at any displacement if what you're saying is
true.  Being naive about pneumatic motors, could you enlighten me?

Now perhaps the Desmo system has the upper hand at the moment, and the
Japanese factories are behind in their pneumatic development right
now.  That much I can buy at this point.  Ducati hasn't had to develop
a new valve train, so they clearly have the upper hand in this one.
If your statements are correct, they'll always have it, and if not, we
may see the pneumatic valved motors being the norm at the front soon.
Time will tell I guess.

Also, do we have any real verification that HP alone is what's causing
the higher trap speeds?  I mean drive (meaning the ability to get that
power to the ground electronically or otherwise) and aerodynamics are
contributing factors, and every bit as important as the outright HP
number, no?

Pags