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gianttomato
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Re: 1G cam question Mon, 28 November 2005 01:44 Go to previous messageGo to previous message
Dirty_Sanchez wrote on Mon, 28 November 2005 12:14

I'm not not exactly sure on how to measure duration though.

Do this with the cam in the head.

Set up a dial indicator on one of the cam lobes. Set up a degree wheel at the front of the cam. Rotate the cam five degrees and measure the lift. Repeat process till you have completed one revolution. Plot results in Excel with degrees along the x axis and lift on the y axis. You will see there is a large peak in the middle with a large flat area of no lift. The maximum lift is the height of the peak. Duration is the distance along the x axis that the peak occurs over. A better and more accurate idea of what the cam is like is to measure the duration at a given lift - the standard is at 50 thousandths of an inch lift.
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SubjectPosterDate
Read Message   1G cam question cultusSun, 27 November 2005 10:07
Read Message   Re: 1G cam question LambolicaSun, 27 November 2005 22:05
Read Message   Re: 1G cam question justcallmefrankSun, 27 November 2005 23:12
Read Message   Re: 1G cam question LambolicaMon, 28 November 2005 01:23
Read Message   Re: 1G cam question FattonySun, 27 November 2005 23:12
Read Message   Re: 1G cam question Dirty_SanchezMon, 28 November 2005 01:14
Read Message   Re: 1G cam question  gianttomatoMon, 28 November 2005 01:44
Read Message   Re: 1G cam question LambolicaMon, 28 November 2005 01:53
Read Message   Re: 1G cam question StefanMon, 28 November 2005 03:17
Read Message   Re: 1G cam question BLK1GGTEMon, 28 November 2005 07:12
Read Message   Re: 1G cam question LambolicaMon, 28 November 2005 08:26
Read Message   Re: 1G cam question justcallmefrankMon, 28 November 2005 13:56
Read Message   Re: 1G cam question LambolicaMon, 28 November 2005 22:16
Read Message   Re: 1G cam question BLK1GGTETue, 29 November 2005 15:27
Read Message   Re: 1G cam question LambolicaTue, 29 November 2005 23:05
Read Message   Re: 1G cam question Chris DaveyTue, 29 November 2005 23:13
Read Message   Re: 1G cam question EMP-2TGWed, 30 November 2005 13:50
Read Message   Re: 1G cam question BLK1GGTEFri, 02 December 2005 06:34
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