4doorboost
Well-known member
i have a big 16g and i had the boost source pulled from the intake manifold to the boost controller and the bov. i changed it so i have the bov off the intake manifold, and i tapped my compressor housing and ran a line from the compressor housing to the mbc then from the mbc to the actuator. i thought this would make the boost hold better because the bov and mbc have there own boost source and the mbc off the compressor housing is the best boost source possible. the problem is im spiking like 18.5 psi then it drops immediately to 15.5 and holds. why is this, i thought that this setup would eliminate spike.. did i maybe put the mbc lines on backward?