 Pre-ignition vs. Detonation
<snip>
> Detonation is when it explosived spontaneously or instantaneously and
> can happen after the spark. Of the two, detonation is the most destructive.
>
> -c
Actually it is the other way around. Pre-ignition is the most
destructive in that the pressure become extremely high due to the fuel
igniting and burning while the piston is still on the compression
stroke. There is some evidence that mild detonation can be normal and
may even be good for the engine.
The Pelican Perch Articals on the Avweb website discuss this in depth
and have the research done by Gami to back it up.
Brian
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