Sensitivity of GM Knock Sensors

[Carl Summers]

Hi Y'all,
      I just noticed this thread....sounds like an AE problem causing knock
which you are seeing "count down" as RPM increases.....is this a centrifugal
or what???Is this MAF or MAP???? I'd like to help if I can.....
-Carl Summers



-----Original Message-----
From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
Of Jim Wilson
Sent: Saturday, April 08, 2000 12:46 PM
To: gmecm at diy-efi.org
Subject: Sensitivity of GM Knock Sensors



    Mark,

   Thanks for the reply. I had already been through the timing (21 degrees @
WOT)  have tried unleaded race gas with the KS still reacting @ WOT. The
further up the RPM goes the less Knock but at the initial hit in 2nd gear I
show a 7 degree KR. In high gear I get a 3-2-1 KR and then it goes away
about 4500 RPM. I backed the KS down as far as 80"# and it is better will
probably go to 70"# and see what that looks like. I realize that at the
shift and the initial hit of the throtle there will be some but of course
with the big hits I loose power.
     Mabey I forgot to mention this is a supercharged 10# boost  LT1 383.

                           Jim


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