[wreckah]

depends how you've driven it...if you had knocking or not.

maybe nothing...

severe detonation = the firing happens on the wrong side of the rod orientation (before the rod is past TDC) , so the powerstroke happens against the natural rotation of the engine...bent rod, etc...

slight knock...maybe no consequence.

It does not happen all the time, I'm not sure but i think knock mostly happens somewhere around peak torque around 4,5K rpm, full throttle...