do you all run that to dd on a certain boost then change it to "play" or what's your reason?
No, on the focus you have to change the tune with the boost level... I'm pretty sure. But like the other guy said it helps keep the boost more constant. It can also give slightly better spool up (100-200 rpm on my car) because uses the boost to hold the wastegate shut until peak boost is seen then the solenoid switches and w/g opens.do you all run that to dd on a certain boost then change it to "play" or what's your reason?
Agreed Pete. TurboSmart has some really nice MBC's that have very minimal leak issues for less than $100 bucks.MBC technology has "advanced" so to speak
when most people think MBC they think ok, bleed valve bleeding boost
but nowadays there are ball-and-spring MBC's that bleed very very small amounts of boost and are very accurate controllers