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Matt-itude Regular Location: Perth, Western Australia Registered: October 2004	Camshaft Design and Optimisation Wed, 05 October 2005 03:57 Hey all, I am doing a uni project on the design of a racing camshaft profile. The requirements are 290 deg crank shaft duration @ 1.27mm lift and maximum valve lift required of 9mm. The engine has a max rpm of 13000 rpm, all using a flat faced follower. Is it safe to assume, that the best performing camshaft profile would be one that opens as quick as possible to 9mm lift and then holds it for as long as possible before closing as quick as possible. All while keeping the follower motion under continuous acceleration and trying to avoid infinite jerk (derivative of acceleration) and to avoid issues like valve bounce and avoiding critical contact stresses? I would assume this leads to an asymmetrical cam profile. Is there any real problem with this, and or are are any of my assumptions incorrect? Thanks for any educated advice you can give me -Matt [Updated on: Wed, 05 October 2005 04:00] [Report message to a moderator]

	Subject	Poster	Date
	Camshaft Design and Optimisation	Matt-itude	Wed, 05 October 2005 03:57
	Re: Camshaft Design and Optimisation	improvedae86	Wed, 05 October 2005 06:53
	Re: Camshaft Design and Optimisation	Matt-itude	Wed, 05 October 2005 07:03
	Re: Camshaft Design and Optimisation	Bill Sherwood	Wed, 05 October 2005 07:07
	Re: Camshaft Design and Optimisation	Matt-itude	Wed, 05 October 2005 07:13
	Re: Camshaft Design and Optimisation	improvedae86	Wed, 05 October 2005 07:20
	Re: Camshaft Design and Optimisation	improvedae86	Wed, 05 October 2005 07:35
	Re: Camshaft Design and Optimisation	Matt-itude	Wed, 05 October 2005 07:43
	Re: Camshaft Design and Optimisation	improvedae86	Wed, 05 October 2005 07:55
	Re: Camshaft Design and Optimisation	170bhp	Wed, 05 October 2005 09:12
	Re: Camshaft Design and Optimisation	improvedae86	Wed, 05 October 2005 10:52

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