Quote:
Originally Posted by cody
More like a computer controlled robot arm to maintain perfect target boost in every gear while the ball and spring offer better boost response, and believe me, 2.0L Subarus at this elevation have awful boost response in stock form.
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A good dual solenoid based EBC with proper programming would be more responsive than an MBC and totally programmable for target boosts in every gear. You're just unhappy with the stock BCS since it's designed with safe failure in mind (i.e. if the solenoid fails, the car runs pure wastegate boost).
Go drop $700 on a Greddy Profec or something similar, then drop another few hundred getting the boost controller tuned and the ECU maps retuned to work around the external boost controller. Or deal with missing your target boost by ~2psi and ~200rpm with the stock solenoid that came free with the car. Or slap the MBC on there for under $100 and hit your target boost all day in 1 gear, and get close in the rest.
There are plenty of options without going retarded developing a stepper driven ball and spring. If you're going to go that route, just bolt a linear actuator to the wastegate door and open and close it directly. Just hope it never fails, 'cause you'll end up with a permanently closed WG! *blammo*
/hijack