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Old 07-12-2003, 11:20 AM
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What Exactly Is Detanation

i know that detanation can shatter a piston but someone explain to me exactly what detenation is? and what causes it

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Old 07-12-2003, 12:06 PM
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detonation is when a hot spot developes in the combustion chamber or cylinder head, and it`s hot enough to ignite the mixture way before the piston reaches TDC, in other words, it ignites the mixture and is trying to push the piston down when it`s on it`s way up. in a high performance engine, oil leaking in the cylinder can cause it, as can low octane fuel on high compression ratio`s, also cross fire from poorly routed or cheapy plug wires, and carbon build up in the chamber can cause it. these are the basics of it, but i`m sure someone on here can give more detailed explanation.
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Old 07-12-2003, 12:34 PM
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detonation is the result of two flame fronts colliding in the combustion chamber. What that means is that the air-fuel mixture has been ignited almost simultaneously in two locations within the combustion chamber of an engine. One flame front was probably ignited by a spark plug, while the second front was ignited spontaneously. The most common causes of detonation are too low octane fuel or over-advanced ignition timing. The result produces the characteristic "knock" or "ping" sound associated with detonation. If left unchecked, it can cause serious engine damage. Expect broken or bent valves and spark plug tips
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Old 07-12-2003, 05:50 PM
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i see thanks i understand alittle more now
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