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Cam Theory 1800

posted by  Bennie on  Tue Feb 22 21:58 CST 2005
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last visit: Wed Nov 28 03:03 CST 2007
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1) Offcourse volvo engineers knew that the valve would act different then the actual lobe shapes. My ponit is that the realation Lobe shape vs Valve action is far from 1:1. Which makes it harder to design a cam.

2) I know there is no optimum lobe shape, but i'm just hypothetiocal here. Just pondering if, and how the volvo lobe could be improved, and in the mean time minimizing wear. So that would also mean low valve acceleration etc.

Snapping an exhaust valve shut abruptly at the end of an intake cyce could cause more reverberation back out the intake than would closing it more gently.
Hmm, yes. Have not though of that yet. AND, this would also mean that on a more radical profile, the lenght of the intake runners would become a lot more critical.

BTW. I'm not at all saying I know anything about cam at all. Like I said in the other cam thread, I'm a newbie, but eager to learn. So keep those replys coming! :)

Cheers, Ben
--
P131, '65, B20B+M47. P131, '69, B20E+AW71L+LSD. (www.tinustechniek.tk)






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