TurfBurn said:Uh... it controls the wastegate! (cheers)
Actually though... it's a feature that is normally only on electronic boost controllers. What happens with this feature is that the wastegate is not opened until a set psi, so say you set it to 5 psi. The wastegate will not open at all until around 5 psi, and then will be fully open by 7 psi (in the case of a stock msp running just the wastegate controller). Without the controller the wastegate cracks open at 1 psi, more by 2, more by 3.. etc all the way to fully open at 7 psi. By keeping it closed to 5 psi you get a much faster boost response.
Modifying that device slightly I can reverse things a little bit and by adding the modified one in to the system in a slightly different manner you can also provide creep protection and preven the boost from creeping up past the set psi. Obviously the system can only at through the actuator on the wastegate, so the system will be limited by the behavior of the turbo system itself to some extent and can't fix problems inherent in the system, like the fall off.. can't really do too much about that unless the root cause is the behavior of the actuator.
Also, I have a Profec Spec-II on my vehicle and that thing will creep HORRENDOUSLY (8 psi of creep happens all the time and only stops because the standalone cuts the engine). Using the little creep protection mechanism I'm going to make will fix this and help anyone who already has that EBC, or any other EBC that is creeping.
Hope that helps answer the questions!
Thanks guys,
Steve
My car have a blitz ebc and the boost creep is horrible this solve my overboost problem 13psi spike