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Old 11-05-2006, 06:41 PM   #1
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Default hallman mbc wont let me go over 6psi?

hi, i have the hallman pro mbc. i turned it a few cranks to try to raise boost to 8psi but it wont go over the stock 6psi.... am i doing something wrong? its all hooked up right and i have good vac reading on the gauge.
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Old 11-05-2006, 07:14 PM   #2
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do you have it inline with the wastegate and the compressor housing?
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Old 11-06-2006, 06:10 PM   #3
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how is your spool up could it be a leaky turbine to manifold gasket this will limit your boost and slow spool considerably. also as mach929 said is it between the boost source and the WG?
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