low boost

  1. Z

    Loss of boost

    Low boost My gh tuned 2011 sho has way less boost all of a sudden. I can’t pinpoint exactly when it happened but i have a bov to air and a gh tune with the map sensor but both of those had been working fine previously. I first realized i had low boost when i lined up next to a mazda 3 and he...
  2. A

    Only making 8 lbs of boost?

    So I’ve had my 2010 SHO non pp with 70k miles for about 2 weeks now and put almost 2100 miles on it and beleibe I’ve developed a boost leak. I can hear a whine from the turbos when I accelerate hard and power has been down. At the very very top pedal to the metal I’m only making 8.4 Lbs of boost...
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