Subject	Not always smashing a valve. true valve float begins
Posted by	RT on July 15, 2003 at 3:00 PM
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In Reply To	Umm... posted by therinL on July 15, 2003 at 02:41 PM
Message	at the point where the vavle does not close at the proper time, minor float only hurts performance, major float can smash a valve. this is usually base line for red lines as i have always heard. When a valve floats that is the critical RPM. The reason motorcycles have such high redlines as valves are real small and light and float at higher rpm. the lighter the vav;lve the easier it is to control at HIGH rpm
Follow Ups	How is the redline limit determined? - shirow 12:40:33 07/15/03 Dependent on cylinder configuration, bore/stroke, valvetrain - U ZCREAM 12:49:10 07/15/03 Don't forget tolerance and balance of parts (n/m) - NytWolf 13:11:19 07/15/03 I think trial and error woudl be too slow: - therinL 12:57:20 07/15/03 'valve float' is first most common problem. - nixit 13:27:35 07/15/03 Umm... - therinL 14:41:58 07/15/03 Not always smashing a valve. true valve float begins - RT 15:00:07 07/15/03 Actually, it has more to do with the valvetrain design >> - ChristopherTheOne 15:44:10 07/15/03 Thanks guys, great answers. (n/m) - shirow 18:08:41 07/15/03 You also have resonant frequencies to worry about - NATAZ 14:36:05 07/15/03 The Tacoma Narrows Bridge comes to mind (n/m) - U ZCREAM 16:09:24 07/15/03 when you stop making power ;) (n/m) - Sweet Z(UTAH) 16:22:15 07/15/03
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