it seems many people are under-estimating the dangers of an engine "pinging".
The optimum timing for ignition is BEFORE pinging occurs.
There should be NO pinging under acceleration or high speed loads such as climbing hills etc.
The noise heard is the combustion mixture EXPLODING from the buid up of heat and pressure as the piston rises within the cylinder bore.
This is NOT a good thing for an engine, as each one of these many little explosions ar hammering the crap out of your main bearings and damage the piston crowns.....enough to burn a hole through them if put under these conditions too often!
Any sound coming from your engine that sounds like a little man in each cylinder belting the crap out of your pistons with a hammer can't be good for anybody!
Engines sre designed for the Air/fuel mixture to be ignited by your spark plugs' at the optimum time to achieve COMBUSTION.
Combustion occurs when the mixture, once fired by the plug, BURNS at a CONTROLLED rate across the piston crown to produce the necessary pressure to operate the crank.
This is why these are called combustion engines!
(NOT Exploding engines!!!!)
Keep your engine from pinging as much as you can, a few times while tuning won't hurt, but don't get into the habit of having an engine running with slight pinging the whole time you are driving it...........it will cost you in the end!
