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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > For those with boost gauge.



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      04-21-2007, 05:11 PM   #1
gashero
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For those with boost gauge.

Just want to find out at what rpm does our car hit full boost (stock and with procede). I am too lazy to intall a gauge in mine so any info or link will be appreciated.
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      04-22-2007, 12:28 PM   #2
Terry335
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There is a post showing the procede curve, which I think is around 14psi in < 4000rpm, and around 12psi up to 6500rpm.

Stock is around 6psi < 5000, and around 8psi up to 6500rpm.
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      04-22-2007, 01:08 PM   #3
shiv@vishnu
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or you can see for yourself by hooking up a boost gauge into the vacuum lines that go to the bypass valves. According to my data, v1.2 and up procede maps run just over 13psi in the low end, 11-12 in the midrange, 10-11 up to 6750 and then down sharply to 6-7 by 7000rpm. All this data is viewable and loggable thru the free procede user software.

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