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View Full Version : In cylinder pressure sensor for setting ignition timing



locco
03-20-2009, 07:34 AM
This is a device which would be very helpful (and cheap) in determaning where to set the ignition timing by measuring where the peak cylinder pressure occurs once HHO is mixed in.

Here's the Delphi link to the technology:
http://delphi.com/manufacturers/auto/powertrain/gas/ignsys/ionized/

And here's the DIY link:
http://vvnet.fi/ville/ion/DIY-Ion-Sensing-2.pdf

I'll have to approach my electronic literate friend to see what he thinks of this and how easy it would be to construct, but the simplicity of using the spark plug itself makes this project look very cheap overall.

.

locco
03-23-2009, 10:45 PM
More info with an easier to understand schem

http://www.liv.ac.uk/engdept/powertraincontrol/spion.htm

I think that you might need a digital storage oscilloscope to run this set up :(