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Intake manifold pressure gauge question

i was looking at this gauge for my boosted Z and i'm curious why is range only up to 2PSI if i'm putting out 9psi at compressor? DEFI (DF04904) Amber

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Old 05-26-2017, 03:02 PM   #1 (permalink)
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Default Intake manifold pressure gauge question

i was looking at this gauge for my boosted Z and i'm curious why is range only up to 2PSI if i'm putting out 9psi at compressor?


DEFI (DF04904) Amber BF Imperial - Intake Manifold Press.
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Old 05-26-2017, 03:24 PM   #2 (permalink)
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That's not a boost gauge. Its a mani pressure gauge used for vacuum and not positive pressure.
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Old 05-26-2017, 04:24 PM   #3 (permalink)
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Quote:
Originally Posted by TopgunZ View Post
That's not a boost gauge. Its a mani pressure gauge used for vacuum and not positive pressure.
Yea i know but i thought that intake manifold pressure would be positive pressure at least close to my boost pressure? since compressor is feeding directly to intake?
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Old 05-26-2017, 04:40 PM   #4 (permalink)
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That gauge is for a NA engine.
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Old 05-26-2017, 08:04 PM   #5 (permalink)
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Quote:
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That gauge is for a NA engine.
Thanks for clarification, I thought that maybe the case
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Old 05-28-2017, 07:11 AM   #6 (permalink)
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If you want a Defi this would be the one. They call it the red racer series or something like that.


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