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Old 03-14-2013, 11:29 AM   #12

GretchenGotGrowl's Avatar
Drives: 11 F150 EB/13 Sonic RS/15 Z06
Join Date: Sep 2010
Location: Little Rock, AR
Posts: 7,133
Originally Posted by sonic656 View Post
What is the negative 12 on the boost gauge? 12inHG? No one says -12psi hahaha. Its called vacuum. Even so 12inHG is low for a healthy car idling. They must have just thrown some numbers on the dash for the heck of it and figured they will deal with it later.
But that's how boost gauges work. So -12 psi converts to about 6.5 inHG (gauge). That seems about right for idle. Not sure how they will display it when it's really pulling some vaccum. Maybe the scale changes???
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