Using stock wastegate solenoid with aftermarket turbo
Posted: Thu Aug 31, 2006 3:30 am
Well, I decided to hook back up the stock wastegate solenoid. It's working fine.
Since the ECU is just trying to hit a set boost pressure, it will adjust the duty cycle to whatever it needs to hit that boost.
The only caveat to this is that the aftermarket turbo's wastegate actuator must open at a lower pressure then the stock boost limit.
So I got an extra 2 psi
Which was nice, but it wasn't an overly drastic difference compared to 7.
Since the ECU is just trying to hit a set boost pressure, it will adjust the duty cycle to whatever it needs to hit that boost.
The only caveat to this is that the aftermarket turbo's wastegate actuator must open at a lower pressure then the stock boost limit.
So I got an extra 2 psi

Which was nice, but it wasn't an overly drastic difference compared to 7.