In a nutshell

Tuesday, May 05, 2009
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Despite the general movement of production engines toward smaller displacement, overhead-cam designs, single-cam-in-block-pushrod-rocker arm V8 engines are firmly rooted in several popular segments of the stateside motor sports world (NASCAR Cup, Tru... read more
Tags :  valvetrain

Profiles critical to performance

Tuesday, May 05, 2009
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There is a conventional wisdom that has developed around intake valve configuration: cylinder heads equipped with ports inclined at narrow valve angle to the valve stem should have conical, or ‘tuliped’ back faces, and ports that have sig... read more
Tags :  valvetrain

Desmodromic

Tuesday, May 05, 2009
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Recently, RET has covered valve spring design and measurement extensively, but it is almost impossible to discuss valve spring design without mentioning the desmodromic system which is used nowadays exclusively by Ducati.The term Desmodromic is coine... read more
Tags :  valvetrain
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