[Ducati] 17000 RPM MotoGP Limit?

[MS&F]

Of course the interesting question is why the other manufactures haven't 
tried using desmo - or if they have, what results they have had from 
their desmo research.

Stuart


Peter Bonner wrote:
> Tony,
>
> what I meant was in terms of the only MotoGP motor that makes the most power
> etc. but F1 is a different case. F1 uses pneumatic, not desmo. Given the
> huge horsepower and displacement (relatively) the F1 motor doesn't mind a
> little power loss to operate valves.
>
> Recall that for the 990cc bikes, the Ducati had more power but not such an
> overwhelming power advantage, just a bit more.
>
> Then the advent of the 800cc bikes, and suddenly the power gap widened quite
> a bit. Why? Because the smaller motor is more sensitive to horsepower
> 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.
> Ducati focused on refining and eliminating friction, so they continue to be
> ahead in power for gas consumption.
>
> Peter
>
> ----- Original Message ----- 
> From: "Tony Pagliaroli" <ajpags at gmail.com>
> To: "Ducati Owners Group" <ducati at ducati.net>
> Sent: Tuesday, March 11, 2008 11:33 AM
> Subject: Re: [Ducati] 17000 RPM MotoGP Limit?
>
>
>   
>> On Tue, Mar 11, 2008 at 12:26 PM, Peter Bonner <dsi at swcp.com> wrote:
>>     
>>>> to run everyone else's costs up to develop new motors while at the same
>>>>         
> time
>   
>>> eliminating what has emerged as a clear winner in valve trains, the
>>>       
> Ducati
>   
>>> Desmo.
>>>       
>> Curious if this is really the "clear winner" for motors.  Aren't all
>> the F1 motors pnuematic valvetrains?  Are any Desmo "style"?
>>
>> Pags
>>
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> 8:15 AM
>   
>>     
>
>
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