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Old 10-29-2006 | 11:09 AM
  #25  
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ziggy12345
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Originally Posted by cdelong
Maybe for a .12cc engine 0.4- 0.5mm would be OK, but for a .21 you need about 0.7mm of clearance. 0.4- 0.5mm is far to little here in the states for a .21 and beyond most anyones margin of comfort for clearance at RPM issues. Remember.... the rod is stretching under racing conditions.
.. we are talking about 12 engines..
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