Knock sensor using HIP9010

[Jim Pearl]

This echoes my requirements. I've got some sort of GM knock sensor on my car
and have about the same hp etc. Currently my only access to this data is
thorugh a laptop. Some sort of meter would be good. You might try checking
with the GN guys to see if their meters would work for you. I've seen a
couple and some are cheap with only a piezo beep and LED flash to notify the
driver. These are three-wire hookup to the ECM so it could possibly help
you. Let me know if you'd like the name and source of my friends box, I've
not been able to get him to let me look inside yet (smile).

At 05:17 PM 4/12/96 -0100, Jim Sturcbecher wrote:
>>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.
>