<<<snips>>>

A real big problem is developing the signal processing software
with out destroying several engines in the process. Looks like a job
for Mazda engineering. I tested my pure audio
version by hitting the junk rotor housing with a hammer.

Perhaps what one could do, and this is a BIG sledge hammer approach,
is to run the stock third gen RX7 computer in parallel with
Tracy's computer and monitor the pulses going to the coils
for evidence of retardation when knock occurs. Just an idea.

Paul Lamar

There is a single chip that inputs a knock sensor signal and outputs IIRC
PWM or variable voltage signal. I *thought* it was one of the chips posted
here recently, but I might have seen it on the DIY-EFI list (look it up -
they're on the web) as well. Too much data, not enough brain. :(

Mike Harrington

That would be http://www.diy-efi.org/

That is a huge web site. We need to narrow it down a bit more than that.

Try this one.   http://www.syty.org/old/promguide.html

Course that is knock on a V8. Not likely to sound the same as knock
on a 13B.

Paul Lamar
 
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