Knock sensor using HIP9010

[Gary W Harris]

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What you need to do is monitor and record the ALDL data stream while you are 
driving.  I beleive there are counters that track the knock count which are 
output as part of this data stream.  You will also get the MAP and timing data 
that corresponds, all time correlated--thus you can develop new fuel/timing 
tables to compensate for the boost.  Sounds simple?

Gary Harris 
"The sum of all knowlege is greater confusion" --Henry Miller


>Jim,
>
>I have been procrastinating about writing of my experiences with
>the hip9010 for a couple of months.
>
<snip>
>What kind of ignition system are you using?  What sort of input do
>you want?
>
>I will try to put some background info on the net tonight
>-----------------------------------------------
>jac at wave.sheridan.wy.us
>john carroll

The engine is a 1991 GM 305 TPI with intake/exhaust mods plus supercharger.
The ignition system is a MSD6BTM system. I don't want to disturb the knock
sensor already fitted, so I was thinking of interfacing to a new independant
unit. I would like to measure the amount of knock so that I can optimise
the ECM tables rather than relying on the BTM to add retard under boost
whether the engine needs it or not.

What would be most useful would to have the spectrum signature of the knock
events. As has been already suggested, I could induce knock and analyse the
transducer output. However, with 420 bhp on tap, this could become an
expensive exercise if I overdo it.

Later,

Jim Sturcbecher
jsturs at bart.nl

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Subject: RE: Knock sensor using HIP9010
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