It's my understanding that a WG% 98 means that the valve is shut (nearly) all the time since it's normally open w/o a signal/trigger.
In open loop at a WG% of 82 from 4k on I see ~15psi. At a WG% of 78 in open loop I was seeing ~13psi. That leads me to believe that the decreasing duty means you are decreasing how frequently/long the valve is shut. IOW a value of 40 means the actuator has more exposure to boost level equaling less boost, and a value of 60 means less exposure to boost level generating more boost. So if the WG% are equal both in closed and open loop, I would expect a closed loop WG% value of 98 far more than 18psi peak, when an open loop WG% 85 made 15psi+. Could that be indicative that there is restriction in the exhaust? I suppose I could set open loop values to 98 and see if I indeed get the ~18psi result. On Jun 13, 2008, at 8:15 PM, Ray Ayala wrote: > At 98% the valve never closes at all. The reason for staying at > 98% instead > of 100% is so that the valve doesn't stick open so long when you > *want* it > to close again. _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
