BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)


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      01-30-2013, 01:30 AM   #1
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G5 iso...

The max boost in G4 is 18.5 psi, What's the max boost in the G5 for stock turbos?
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      01-30-2013, 12:46 PM   #2
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Depends on the map you choose
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      01-30-2013, 02:04 PM   #3
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Iirc, over 18.5psi on the stock turbos is well out of their efficiency range and it just ends up being harmful to the turbo life.
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