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Originally Posted by decypher
Please forgive my ignorence, but i have a few questions. But what is a EBC or GM BC or 3.5 Bar AEM or 3.0 bar GM MAP Sensor and connector?? thanks in advance
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EBC = Electronic Boost Controller
GM BC = General Motors Boost Solenoid (off a GMC Syclone or Typhoon)
3.5 Bar AEM = AEM's Manifold Pressure sensor, with a range of 3.5 bars (-1 bar vacuum to +2.5 bars boost compared to "ambient" pressure).
3.0 Bar GM MAP = GM's Manifold Pressure sensor, range from -1 bar to +2 bar (-14.7psi to +30 psi, roughly)
The AEM can control a boost solenoid, and the GM solenoid is a cheap option that supposedly works well. I still use my good ol' Hallman boost controller on my car. If you let the AEM control boost, you can do some additional things - like speed-based boost control, so you can have lower boost levels below 15 MPH and ramp up after that to get better traction on a FWD car, for instance.