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Location:  Kita-Ku, Sapporo, Japan 
Registered: January 2003
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		Re: adding squish area
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		Mon, 17 January 2005 22:42 
		  
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	also remember that it's the 'dynamic compression' not the 'static compression' that is important. 
i run 10.2:1 in my 4K motor with lots of advance (20deg static timing), and have never had it ping.. i did smooth and reshape the chamber (unshroud valves etc) and run on 98, but due to my cams, i have a lower dynamic compression (65 deg overlap) 
 
what better excuse.. "honey the cars pinging again, i think i need to fit a bigger cam   " 
Cya, Stewart 
 
	
	
	
	
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