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boost gauge reading in vacuum. bad to drive like that?

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Old Apr 9, 2004 | 04:34 PM
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boost gauge reading in vacuum. bad to drive like that?
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Old Apr 9, 2004 | 04:38 PM
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Default What exactly do you mean?...>
It's gonna be in vacuum a great deal of the time...
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Old Apr 9, 2004 | 04:42 PM
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Default oh...more.
I just switched from a 0 - 30 psi to a -10 - 0 - 25psi boost gauge so i wasn';t sure if it was normal
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Old Apr 9, 2004 | 04:49 PM
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Default you get below zero (0) when you let off the gas (no boost)...and you get above >>
zero (0) when you nail it...and typically, zero (0) when idle, no boost or vacumm.
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Old Apr 9, 2004 | 06:17 PM
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Default you should always pull vacuum at idle! if not you've got problems :)
it should be around 20" vac at idle, maybe 10" vac at light cruise and 5" vac up into boost when accelerating (dependant upon how hard you are accelerating)
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