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Old 08-19-2007, 07:04 AM
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The squish or quench area is the gap between the piston flat and the head flat @ TDC, which allows the flame to accelerate and cool during ignition. The wider the quench area the more resistance you have to detonation. Also, the quench is a safety net so that your piston doesnt make contact with the head. You cant just deck blocks, shave heads and throw in some domed slugs. Life is not that easy.
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