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Lancer Aftermarket Forced Induction Tech Discuss forced induction related specs and upgrades for custom aftermarket setups.

normal VACUUM pressure? 15-22?

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Old Jan 2, 2008 | 12:23 PM
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From: newport news virginia
normal VACUUM pressure? 15-22?
i been getting 2 different opinions. i just want to clarify the normal vacuum pressure for idle is 15-22...thanks

Last edited by lancer2show; Jan 2, 2008 at 12:39 PM.
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Old Jan 2, 2008 | 12:36 PM
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That looks right for an idle vacuum.
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Old Jan 2, 2008 | 01:36 PM
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From: boostville
~20in hg is right. Also depends on altitude. The higher the alt, the lower the vac is at idle.
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Old Jan 2, 2008 | 06:04 PM
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From: newport news virginia
thanks guys
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Old Jan 3, 2008 | 07:57 AM
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Mine sits at -20 at idle and like -22/-24 when i'm cruising and off the gas. You're good.
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Old Jan 5, 2008 | 10:45 AM
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im at -22 at idle
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