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Old 03-26-2009, 06:21 PM   #1
Meat Supply
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Default hooking up boost gauge-halp!

great



so i got a boost gauge and i hooked it up, but i have a couple questions. at idle it's at about -11

the gauge says Hg or whatever on it. i'm a turbo newb and may have not my homework correctly. so how is Hg different than PSI? also i know (when working correctly) it's only supposed to put up to 8.7 psi and my gauge goes up to 10 hG (so i thought i was in range) when i get on it, even pretty moderately it goes wayyyyy up to about where 20 is. pretty sure that's not right anyway.

thoughts?
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Last edited by Meat Supply; 03-27-2009 at 07:58 PM.
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Old 03-27-2009, 12:34 PM   #2
Rei_Akira
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Old 03-27-2009, 06:51 PM   #3
Meat Supply
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well.great.

so what kind of device would use Hg and only up to 10? motorcycle?
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Old 03-28-2009, 10:45 PM   #4
ballitch
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Usually boost gauges have a vacuum side (mm Hg), and a boost side (psi.) The mm Hg is vacuum pressure, that's how many millimeters of mercury it pulls i n vacuum.

Are you sure its a boost gauge? Usually the vacuum goes to like 20 or so and the boost goes to about 30. There will be a zero in between the two largest numbers.


~Josh~
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