Originally posted by Vishnu Performance
That problem really won't be an issue with such little boost pressure. If you were to go WOT and sustain 1.2 bar of boost for several seconds, that would be another story.
Try it.... Sustain atmosphere on your boost gauge and touch the brakes... It does not even take positive pressure.. In short order the brake pedal will go rock hard and power assist will be lost. There is a check valve to prevent positive manifold pressure to enter the brake booster. All you need to do is come out of vac and you will loose the booster.