[Gmecm] Getting rid of False Knock?

[Steve Ravet]

Don't get too crazy with the math, I doubt the filter in the ESC module
or chip allows that much resolution.  There were lots of good
suggestions in this thread, I hope one of them worked for you.
Something I've read about and always wanted to try is to put a second
knock sensor in the hole on the other side of the block and wire it up
to headphones via a little radio shack 9v powered amplifier.  The huiman
ear should be able to distinguish between real and fake knock where the
simple ESC filter can't.
 
--steve


________________________________

	From: gmecm-bounces at diy-efi.org
[mailto:gmecm-bounces at diy-efi.org] On Behalf Of Sixpakmak15 at aol.com
	Sent: Tuesday, March 22, 2005 10:32 PM
	To: gmecm at diy-efi.org
	Subject: Re: [Gmecm] Getting rid of False Knock?
	
	
	They're hydraulic roller set 3/4 from 0 Lash... however... I
just noticed there is no Knock when the car is idling... It starts to
climb slowly when I accelerate slow... and the faster I accelerate, the
faster the knock number goes up... If I put the car in Nuetral and rev
to 3000, it will count a few thousand knocks... So, If I time myself for
one minute... while I hold the rpm at a constant 3000... I should be
able to take the number of knock counts durring the run, i.e. 50,000..
and turn that into the sum of an equation for either the number of
compession stokes or rocker movement durring that period of time and
rpm?
	3000   = 750      (750) 60sec = 45,000 compresion stokes and or
knock counts
	    4strokes
	or 
	3000   = 1500    (1500) 60sec = 90,000 rocker movements and or
knock counts
	    2 "cam timing" 

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