Subject	at 15", your engine wouldn't idle smooth. An engine that
Posted by	CHUNG (Dallas) on February 09, 2006 at 3:05 PM
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In Reply To	IIRC, my shows ~15" of mercury or whatever unit it is posted by chenc544 on February 09, 2006 at 01:25 PM
Message	can't pull 17"+ (18"+ with VG) at idle will experience poor idle. If you had smooth idle, then your gauge is off calibration. When coasting, your gauge should indicate 22"+. General rule of thumb, a healthy engine should pull 17~21" at idle and 3~5" cranking vacum. Erick ________
Follow Ups	Boost gauge selection... boost/vac vs. just boost - Goose1451 12:25:10 02/09/06 vac shows leaks. - ni[X]it 12:28:07 02/09/06 What's the regular vaccum for a tt engine? (n/m) - zboost(tx) 13:14:15 02/09/06 my gauge sat at 19-20 *whatever the units are* - ZEngineer 13:25:26 02/09/06 sounds about right (n/m) - Guapo 13:31:27 02/09/06 inch of mercury. (n/m) - CHUNG (Dallas) 15:13:01 02/09/06 IIRC, my shows ~15" of mercury or whatever unit it is - chenc544 13:25:45 02/09/06 at 15", your engine wouldn't idle smooth. An engine that - CHUNG (Dallas) 15:05:16 02/09/06 Thanks for the info - chenc544 16:37:12 02/09/06 Just checked.... 20 inHG at idle.. im good :) (n/m) - zboost(tx) 13:39:27 02/09/06 do not use it as a means to verify for boost/vacuum leaks - ZEngineer 13:46:18 02/09/06 I know - zboost(tx) 13:51:44 02/09/06
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