Advantages of GM solenoid over MBC?
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Advantages of GM solenoid over MBC?
I'm trying to decide if I want to run the GM boost solenoid to control boost or the tried and true Hallman MBC. What are the advantages of the GM unit over the MBC? Can it help hold boost better etc? Only thing keeping me away from the GM unit is the seeming complexity relative to the MBC.
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I would go the GM Solenoid. I almost purchased it last week to for my Motec to control.
One disadvantage with the MBC a friend of mine had his hood up during a car show and some clown adjusted his boost while he wasn't looking.
One disadvantage with the MBC a friend of mine had his hood up during a car show and some clown adjusted his boost while he wasn't looking.
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In a closed loop system, you basically set a boost level, and the ecu will try to get to that boost level, and raise/lower boost constantly while monitoring boost. So there is feedback from the car that the ecu reacts to.
For evos, you just set the boost level and have to monitor it by other means (ie map sensor), then continue to tune the boost curve until it looks like you want it, hence the need for dynos and such