Re: roller rocker article (duration!)

From: Klaus Wilkens (klaus@buffnet.net)
Date: Wed May 20 1998 - 22:23:37 EDT


Sorry,
But the cam lobe determines duration. duration @ .050 will be increased slightly
becausethe valve opens at a higher rate, but the amount of time the valve is
open (off the seat), measured in crankshaft degrees remains constant regardless
of the rocker arm ratio.

KW

svieth@ameritech.net wrote:

> Huh? The use of high-lift rockers will *definitely*
> change the duration (measured at the valve stem)
> of the cam.
>
> Do the math.
>
> -Scott
>
> > Sean,
> >
> > The 1.7 rockewrs do not alter the duration, only the cam lobe can do that.
> >
> > KW
>
>
> "No, Homer, very few cartoons are broadcast live. It's a
> terrible strain on the illustrator's wrist."



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