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Location:
Melbourne
Registered:
June 2004
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Re: Turkish Grandprix
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Tue, 23 August 2005 04:49
 
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| Roundy wrote on Tue, 23 August 2005 08:54 |
umm unless the rules have changed a bit for next yr they don't have 'cams' it is all pneumatic i believe, therefore the valves open and close for the exact duration and lift to make the most power at that RPM range...tho i am amazed that they can open and shut a valve 12000 times per minute, that is just HUGE
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The explaination, as I understand it:
They have Camshafts, with small pneumatic cylinders acting as Valve-springs. The main purpose of running these is to avoid the high-RPM harmonics which send conventional Valve-springs into uncontrollable ValveBounce above 14,000RPM (or thereabouts).
I THINK the 4-stroke, 4Cylinder 250cc bikes get away with 19,000RPM because they have tiny cylinders, and hence tiny valves, which are relatively easy to control. Hell - make a V12 to the same specs and you've still only got a 750cc motor ! ! !
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| | Subject | Poster | Date |
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Turkish Grandprix
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Corona RT142 | Mon, 22 August 2005 04:33 |
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Re: Turkish Grandprix
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oldcorollas | Mon, 22 August 2005 04:58 |
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Re: Turkish Grandprix
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st184 sillycar | Mon, 22 August 2005 05:36 |
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Re: Turkish Grandprix
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Nark | Mon, 22 August 2005 05:05 |
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Re: Turkish Grandprix
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oldcorollas | Mon, 22 August 2005 05:06 |
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Re: Turkish Grandprix
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79rollaboy | Mon, 22 August 2005 05:10 |
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Re: Turkish Grandprix
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Nark | Mon, 22 August 2005 05:14 |
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Re: Turkish Grandprix
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79rollaboy | Mon, 22 August 2005 05:37 |
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Re: Turkish Grandprix
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matt86sx | Mon, 22 August 2005 05:53 |
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Re: Turkish Grandprix
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EVOSTi | Mon, 22 August 2005 07:03 |
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Re: Turkish Grandprix
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st184 sillycar | Tue, 23 August 2005 05:00 |
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Re: Turkish Grandprix
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Corona RT142 | Mon, 22 August 2005 07:14 |
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Re: Turkish Grandprix
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BlackGT4 | Mon, 22 August 2005 07:28 |
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Re: Turkish Grandprix
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Corona RT142 | Mon, 22 August 2005 07:29 |
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Re: Turkish Grandprix
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BlackGT4 | Mon, 22 August 2005 08:14 |
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Re: Turkish Grandprix
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Corona RT142 | Mon, 22 August 2005 08:24 |
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Re: Turkish Grandprix
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oldcorollas | Mon, 22 August 2005 08:46 |
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Re: Turkish Grandprix
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Shraka | Mon, 22 August 2005 08:38 |
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Re: Turkish Grandprix
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xolent | Mon, 22 August 2005 13:00 |
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Re: Turkish Grandprix
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Roundy | Mon, 22 August 2005 22:54 |
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Re: Turkish Grandprix
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st184 sillycar | Tue, 23 August 2005 04:49 |
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Re: Turkish Grandprix
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oldcorollas | Tue, 23 August 2005 06:15 |
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Re: Turkish Grandprix
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Corona RT142 | Mon, 22 August 2005 23:16 |
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Re: Turkish Grandprix
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river | Tue, 23 August 2005 03:06 |
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Re: Turkish Grandprix
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Roundy | Tue, 23 August 2005 03:14 |
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Re: Turkish Grandprix
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cannonball | Tue, 23 August 2005 05:22 |
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Re: Turkish Grandprix
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Corona RT142 | Tue, 23 August 2005 06:25 |
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Re: Turkish Grandprix
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matt86sx | Wed, 24 August 2005 00:02 |
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Re: Turkish Grandprix
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Roundy | Wed, 24 August 2005 00:13 |
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Re: Turkish Grandprix
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st184 sillycar | Wed, 24 August 2005 01:28 |
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Re: Turkish Grandprix
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Corona RT142 | Wed, 24 August 2005 00:24 |
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Re: Turkish Grandprix
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Corona RT142 | Wed, 24 August 2005 01:33 |
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Re: Turkish Grandprix
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st184 sillycar | Wed, 24 August 2005 01:44 |
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Re: Turkish Grandprix
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Corona RT142 | Wed, 24 August 2005 01:49 |
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Re: Turkish Grandprix
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EVOSTi | Wed, 24 August 2005 04:31 |
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Re: Turkish Grandprix
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Corona RT142 | Wed, 24 August 2005 04:38 |
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Re: Turkish Grandprix
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cannonball | Wed, 24 August 2005 05:20 |
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Re: Turkish Grandprix
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Corona RT142 | Wed, 24 August 2005 05:22 |
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Re: Turkish Grandprix
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Ben Wilson | Thu, 25 August 2005 01:59 |
