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      03-09-2012, 06:58 AM   #4230
335i E92
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Drives: M22
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Location: Manchester

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Quote:
Originally Posted by enrita View Post
as long as the turbos are in their efficiency range there are no issues.
What defines the 'efficiency range' on stock turbo's? How do we know that 18.5psi is within the efficiency range?

Curious to know how this is calculated?
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