Thread: JB4 Big Boost
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      05-31-2011, 07:34 AM   #4
JB4-335
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Drives: E92 BSM & E70 AW
Join Date: Feb 2011
Location: Australia

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Quote:
Originally Posted by blackonblack135 View Post
so you would say it's safe to bump it up to 15psi all day on pump fuel and a tune?

what do we run standard (dont noob bash i just never thought about it before lol!)
15psi if you have tune and supporting mods such as DP's and IC. Every tune and car is different.

Max Stock boost is about 8psi.

Do you have a tune?
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