[cdrazic93]

http://www.speedhunters.com/2014/09/...rol-questions/

Age old question, which is more reliable – an electronic boost controller or a manual boost controller, and why?

Turbosmart: It depends on what you are referring to in terms of reliability; boost control reliability or functional reliability. In terms of boost control reliability, an electronic boost controller has its advantages in its ability to maintain a reliable boost curve and include safety measures – such over boost shut down and warning alarms. Electronic boost controllers are also installed in a fashion so in the case of an electrical fault, the solenoid remains in a state which reverts boost pressure back to the actuator spring pressure. A manual boost controller does not have as much scope to tune the boost curve, but has better functional reliability as there are no moving parts and there is no requirement for power – meaning there is very little to go wrong. One thing to note with any turbocharged car (is that) there always needs to be an ECU based boost cut or engine protection measure, in case of a mechanical failure to the wastegate (or pneumatic lines to the wastegate) which can cause overboost situations outside the boost controller’s ability to manage.