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Tire shop horror story! Please help!

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Old 01-15-2008, 01:00 PM
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Any update? Who cares about the definition of detonation, look it up if you don't know what it is.
Old 01-15-2008, 02:25 PM
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[QUOTE=street_ruler,Jan 11 2008, 09:24 PM] yah sorry detonation is the "technical" word for a misfire.
Old 01-15-2008, 04:12 PM
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Sorry, quoted the wrong post.
Old 01-15-2008, 04:14 PM
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Originally Posted by Elistan,Jan 15 2008, 10:56 AM
Slight nitpick - it's an unctrolled combustion before the spark plug fires, which may or may not be at TDC.

Otherwise
I've got to nitpick your nitpick. Detonation usually occurs as follows:'

The spark plug ignites the mixture adjacent to the electrode. The burning mixture expands as the flame front moves away from the spark plug, compressing unburned mixture in front of the flame front. If the octane of the fuel is too low (or there's a piece of carbon that forms a hot spot in the unburned gases), a second ignition takes place some distance in front of the flame front. Now you have two flame fronts that collide. That's detonation.

The compression ignition in a gasoline engine is almost always caused by the compression of the unburned mixture as the flame propagates through the cylinder. If detonation were occuring before the spark, then how could retarding the timing (making the spark later) mitigate the situation.
Old 01-15-2008, 06:43 PM
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Sigh
Old 01-15-2008, 07:29 PM
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[QUOTE=street_ruler,Jan 12 2008, 12:24 AM] yah sorry detonation is the "technical" word for a misfire.
Old 01-15-2008, 09:59 PM
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you guys should start a detonation thread OR all exchange numbers and u can talk on the phone
anyway did u get ur car to a shop?
Old 01-16-2008, 10:46 AM
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BACK TO THE TOPIC!!!
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