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BMW 3-Series (E90 E92) Forum
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Manifold Boost Pressure Source?
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12-30-2007, 11:33 AM | #1 |
First Lieutenant
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Manifold Boost Pressure Source?
Does anyone know of a vac/boost line I can tap that will read the manifold pressure as opposed to the intake pipe pressure (where diverters are)
I want to get an accurate boost pressure reading that will not be affected by the momentary spike that occurs in the intake pipe after the throttle body closes. thanks in advance. |
12-30-2007, 12:25 PM | #3 |
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That's what I use for my dynos.
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12-30-2007, 02:15 PM | #4 |
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I use the DV vac source also for my boost gauge and I've never once seen a spike after the throttle body closes. I think that the DV vac line can be routed back to the top of the throttlebody, so I think its coming from the intake manifold.
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